Introduce the Qt graphics abstraction as private QtGui helpers

Comes with backends for Vulkan, Metal, Direct3D 11.1, and OpenGL (ES).

All APIs are private for now.

Shader conditioning (i.e. generating a QRhiShader in memory or on disk
from some shader source code) is done via the tools and APIs provided
by qt-labs/qtshadertools.

The OpenGL support follows the cross-platform tradition of requiring
ES 2.0 only, while optionally using some (ES) 3.x features. It can
operate in core profile contexts as well.

Task-number: QTBUG-70287
Change-Id: I246f2e36d562e404012c05db2aa72487108aa7cc
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
 
 
 
 
 

11 files changed, 1523 insertions, 0 deletions

diff --git a/tests/manual/rhi/triquadcube/quadrenderer.cpp b/tests/manual/rhi/triquadcube/quadrenderer.cpp
new file mode 100644
index 0000000000..6137fb1b9a
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/quadrenderer.cpp
@@ -0,0 +1,148 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "quadrenderer.h"
+#include <QFile>
+#include <QtGui/private/qshader_p.h>
+
+// Renders a quad using indexed drawing. No QRhiGraphicsPipeline is created, it
+// expects to reuse the one created by TriangleRenderer. A separate
+// QRhiShaderResourceBindings is still needed, this will override the one the
+// QRhiGraphicsPipeline references.
+
+static float vertexData[] =
+{ // Y up (note m_proj), CCW
+  -0.5f,   0.5f,   1.0f, 0.0f, 0.0f,   0.0f, 0.0f,
+  -0.5f,  -0.5f,   0.0f, 1.0f, 0.0f,   0.0f, 1.0f,
+  0.5f,   -0.5f,   0.0f, 0.0f, 1.0f,   1.0f, 1.0f,
+  0.5f,   0.5f,    1.0f, 0.0f, 0.0f,   1.0f, 1.0f
+};
+
+static quint16 indexData[] =
+{
+    0, 1, 2, 0, 2, 3
+};
+
+void QuadRenderer::initResources(QRhiRenderPassDescriptor *)
+{
+    m_vbuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertexData));
+    m_vbuf->build();
+    m_vbufReady = false;
+
+    m_ibuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::IndexBuffer, sizeof(indexData));
+    m_ibuf->build();
+
+    m_ubuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 68);
+    m_ubuf->build();
+
+    m_srb = m_r->newShaderResourceBindings();
+    m_srb->setBindings({
+        QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, m_ubuf)
+    });
+    m_srb->build();
+}
+
+void QuadRenderer::setPipeline(QRhiGraphicsPipeline *ps)
+{
+    m_ps = ps;
+}
+
+void QuadRenderer::resize(const QSize &pixelSize)
+{
+    m_proj = m_r->clipSpaceCorrMatrix();
+    m_proj.perspective(45.0f, pixelSize.width() / (float) pixelSize.height(), 0.01f, 100.0f);
+    m_proj.translate(0, 0, -4);
+}
+
+void QuadRenderer::releaseResources()
+{
+    delete m_srb;
+    m_srb = nullptr;
+
+    delete m_ubuf;
+    m_ubuf = nullptr;
+
+    delete m_ibuf;
+    m_ibuf = nullptr;
+
+    delete m_vbuf;
+    m_vbuf = nullptr;
+}
+
+void QuadRenderer::queueResourceUpdates(QRhiResourceUpdateBatch *resourceUpdates)
+{
+    if (!m_vbufReady) {
+        m_vbufReady = true;
+        resourceUpdates->uploadStaticBuffer(m_vbuf, vertexData);
+        resourceUpdates->uploadStaticBuffer(m_ibuf, indexData);
+    }
+
+    m_rotation += 1.0f;
+    QMatrix4x4 mvp = m_proj;
+    mvp.translate(m_translation);
+    mvp.rotate(m_rotation, 0, 1, 0);
+    resourceUpdates->updateDynamicBuffer(m_ubuf, 0, 64, mvp.constData());
+
+    if (!m_opacityReady) {
+        m_opacityReady = true;
+        const float opacity = 1.0f;
+        resourceUpdates->updateDynamicBuffer(m_ubuf, 64, 4, &opacity);
+    }
+}
+
+void QuadRenderer::queueDraw(QRhiCommandBuffer *cb, const QSize &/*outputSizeInPixels*/)
+{
+    cb->setGraphicsPipeline(m_ps);
+    //cb->setViewport(QRhiViewport(0, 0, outputSizeInPixels.width(), outputSizeInPixels.height()));
+    cb->setShaderResources(m_srb);
+    const QRhiCommandBuffer::VertexInput vbufBinding(m_vbuf, 0);
+    cb->setVertexInput(0, 1, &vbufBinding, m_ibuf, 0, QRhiCommandBuffer::IndexUInt16);
+    cb->drawIndexed(6);
+}
diff --git a/tests/manual/rhi/triquadcube/quadrenderer.h b/tests/manual/rhi/triquadcube/quadrenderer.h
new file mode 100644
index 0000000000..79d5b8209d
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/quadrenderer.h
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QUADRENDERER_H
+#define QUADRENDERER_H
+
+#include <QtGui/private/qrhi_p.h>
+
+class QuadRenderer
+{
+public:
+    void setRhi(QRhi *r) { m_r = r; }
+    void setSampleCount(int samples) { m_sampleCount = samples; }
+    int sampleCount() const { return m_sampleCount; }
+    void setTranslation(const QVector3D &v) { m_translation = v; }
+    void initResources(QRhiRenderPassDescriptor *rp);
+    void releaseResources();
+    void setPipeline(QRhiGraphicsPipeline *ps);
+    void resize(const QSize &pixelSize);
+    void queueResourceUpdates(QRhiResourceUpdateBatch *resourceUpdates);
+    void queueDraw(QRhiCommandBuffer *cb, const QSize &outputSizeInPixels);
+
+private:
+    QRhi *m_r;
+
+    QRhiBuffer *m_vbuf = nullptr;
+    bool m_vbufReady = false;
+    QRhiBuffer *m_ibuf = nullptr;
+    bool m_opacityReady = false;
+    QRhiBuffer *m_ubuf = nullptr;
+    QRhiGraphicsPipeline *m_ps = nullptr;
+    QRhiShaderResourceBindings *m_srb = nullptr;
+
+    QVector3D m_translation;
+    QMatrix4x4 m_proj;
+    float m_rotation = 0;
+    int m_sampleCount = 1; // no MSAA by default
+};
+
+#endif
diff --git a/tests/manual/rhi/triquadcube/texturedcuberenderer.cpp b/tests/manual/rhi/triquadcube/texturedcuberenderer.cpp
new file mode 100644
index 0000000000..d2e1f99923
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/texturedcuberenderer.cpp
@@ -0,0 +1,222 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "texturedcuberenderer.h"
+#include <QFile>
+#include <QtGui/private/qshader_p.h>
+
+#include "../shared/cube.h"
+
+const bool MIPMAP = true;
+const bool AUTOGENMIPMAP = true;
+
+static QShader getShader(const QString &name)
+{
+    QFile f(name);
+    if (f.open(QIODevice::ReadOnly))
+        return QShader::fromSerialized(f.readAll());
+
+    return QShader();
+}
+
+void TexturedCubeRenderer::initResources(QRhiRenderPassDescriptor *rp)
+{
+    m_vbuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(cube));
+    m_vbuf->setName(QByteArrayLiteral("Cube vbuf (textured)"));
+    m_vbuf->build();
+    m_vbufReady = false;
+
+    m_ubuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 64 + 4);
+    m_ubuf->setName(QByteArrayLiteral("Cube ubuf (textured)"));
+    m_ubuf->build();
+
+    m_image = QImage(QLatin1String(":/qt256.png")).convertToFormat(QImage::Format_RGBA8888);
+    QRhiTexture::Flags texFlags = 0;
+    if (MIPMAP)
+        texFlags |= QRhiTexture::MipMapped;
+    if (AUTOGENMIPMAP)
+        texFlags |= QRhiTexture::UsedWithGenerateMips;
+    m_tex = m_r->newTexture(QRhiTexture::RGBA8, QSize(m_image.width(), m_image.height()), 1, texFlags);
+    m_tex->setName(QByteArrayLiteral("Qt texture"));
+    m_tex->build();
+
+    m_sampler = m_r->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, MIPMAP ? QRhiSampler::Linear : QRhiSampler::None,
+                                QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge);
+    m_sampler->build();
+
+    m_srb = m_r->newShaderResourceBindings();
+    m_srb->setBindings({
+        QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, m_ubuf),
+        QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, m_tex, m_sampler)
+    });
+    m_srb->build();
+
+    m_ps = m_r->newGraphicsPipeline();
+
+    // No blending but the texture has alpha which we do not want to write out.
+    // Be nice. (would not matter for an onscreen window but makes a difference
+    // when reading back and saving into image files f.ex.)
+    QRhiGraphicsPipeline::TargetBlend blend;
+    blend.colorWrite = QRhiGraphicsPipeline::R | QRhiGraphicsPipeline::G | QRhiGraphicsPipeline::B;
+    m_ps->setTargetBlends({ blend });
+
+    m_ps->setDepthTest(true);
+    m_ps->setDepthWrite(true);
+    m_ps->setDepthOp(QRhiGraphicsPipeline::Less);
+
+    m_ps->setCullMode(QRhiGraphicsPipeline::Back);
+    m_ps->setFrontFace(QRhiGraphicsPipeline::CCW);
+
+    m_ps->setSampleCount(m_sampleCount);
+
+    QShader vs = getShader(QLatin1String(":/texture.vert.qsb"));
+    Q_ASSERT(vs.isValid());
+    QShader fs = getShader(QLatin1String(":/texture.frag.qsb"));
+    Q_ASSERT(fs.isValid());
+    m_ps->setShaderStages({
+        { QRhiGraphicsShaderStage::Vertex, vs },
+        { QRhiGraphicsShaderStage::Fragment, fs }
+    });
+
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({
+        { 3 * sizeof(float) },
+        { 2 * sizeof(float) }
+    });
+    inputLayout.setAttributes({
+        { 0, 0, QRhiVertexInputAttribute::Float3, 0 },
+        { 1, 1, QRhiVertexInputAttribute::Float2, 0 }
+    });
+
+    m_ps->setVertexInputLayout(inputLayout);
+    m_ps->setShaderResourceBindings(m_srb);
+    m_ps->setRenderPassDescriptor(rp);
+
+    m_ps->build();
+}
+
+void TexturedCubeRenderer::resize(const QSize &pixelSize)
+{
+    m_proj = m_r->clipSpaceCorrMatrix();
+    m_proj.perspective(45.0f, pixelSize.width() / (float) pixelSize.height(), 0.01f, 100.0f);
+    m_proj.translate(0, 0, -4);
+}
+
+void TexturedCubeRenderer::releaseResources()
+{
+    delete m_ps;
+    m_ps = nullptr;
+
+    delete m_srb;
+    m_srb = nullptr;
+
+    delete m_sampler;
+    m_sampler = nullptr;
+
+    delete m_tex;
+    m_tex = nullptr;
+
+    delete m_ubuf;
+    m_ubuf = nullptr;
+
+    delete m_vbuf;
+    m_vbuf = nullptr;
+}
+
+void TexturedCubeRenderer::queueResourceUpdates(QRhiResourceUpdateBatch *resourceUpdates)
+{
+    if (!m_vbufReady) {
+        m_vbufReady = true;
+        resourceUpdates->uploadStaticBuffer(m_vbuf, cube);
+        qint32 flip = 0;
+        resourceUpdates->updateDynamicBuffer(m_ubuf, 64, 4, &flip);
+    }
+
+    if (!m_image.isNull()) {
+        if (MIPMAP) {
+            QRhiTextureUploadDescription desc;
+            if (!AUTOGENMIPMAP) {
+                // the ghetto mipmap generator...
+                for (int i = 0, ie = m_r->mipLevelsForSize(m_image.size()); i != ie; ++i) {
+                    QImage image = m_image.scaled(m_r->sizeForMipLevel(i, m_image.size()));
+                    desc.append({ 0, i, image });
+                }
+            } else {
+                desc.append({ 0, 0, m_image });
+            }
+            resourceUpdates->uploadTexture(m_tex, desc);
+            if (AUTOGENMIPMAP)
+                resourceUpdates->generateMips(m_tex);
+        } else {
+            resourceUpdates->uploadTexture(m_tex, m_image);
+        }
+        m_image = QImage();
+    }
+
+    m_rotation += 1.0f;
+    QMatrix4x4 mvp = m_proj;
+    mvp.translate(m_translation);
+    mvp.scale(0.5f);
+    mvp.rotate(m_rotation, 0, 1, 0);
+    resourceUpdates->updateDynamicBuffer(m_ubuf, 0, 64, mvp.constData());
+}
+
+void TexturedCubeRenderer::queueDraw(QRhiCommandBuffer *cb, const QSize &outputSizeInPixels)
+{
+    cb->setGraphicsPipeline(m_ps);
+    cb->setViewport(QRhiViewport(0, 0, outputSizeInPixels.width(), outputSizeInPixels.height()));
+    cb->setShaderResources();
+    const QRhiCommandBuffer::VertexInput vbufBindings[] = {
+        { m_vbuf, 0 },
+        { m_vbuf, 36 * 3 * sizeof(float) }
+    };
+    cb->setVertexInput(0, 2, vbufBindings);
+    cb->draw(36);
+}
diff --git a/tests/manual/rhi/triquadcube/texturedcuberenderer.h b/tests/manual/rhi/triquadcube/texturedcuberenderer.h
new file mode 100644
index 0000000000..879f875209
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/texturedcuberenderer.h
@@ -0,0 +1,86 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef TEXTUREDCUBERENDERER_H
+#define TEXTUREDCUBERENDERER_H
+
+#include <QtGui/private/qrhi_p.h>
+
+class TexturedCubeRenderer
+{
+public:
+    void setRhi(QRhi *r) { m_r = r; }
+    void setSampleCount(int samples) { m_sampleCount = samples; }
+    void setTranslation(const QVector3D &v) { m_translation = v; }
+    void initResources(QRhiRenderPassDescriptor *rp);
+    void releaseResources();
+    void resize(const QSize &pixelSize);
+    void queueResourceUpdates(QRhiResourceUpdateBatch *resourceUpdates);
+    void queueDraw(QRhiCommandBuffer *cb, const QSize &outputSizeInPixels);
+
+private:
+    QRhi *m_r;
+
+    QRhiBuffer *m_vbuf = nullptr;
+    bool m_vbufReady = false;
+    QRhiBuffer *m_ubuf = nullptr;
+    QImage m_image;
+    QRhiTexture *m_tex = nullptr;
+    QRhiSampler *m_sampler = nullptr;
+    QRhiShaderResourceBindings *m_srb = nullptr;
+    QRhiGraphicsPipeline *m_ps = nullptr;
+
+    QVector3D m_translation;
+    QMatrix4x4 m_proj;
+    float m_rotation = 0;
+    int m_sampleCount = 1; // no MSAA by default
+};
+
+#endif
diff --git a/tests/manual/rhi/triquadcube/triangleoncuberenderer.cpp b/tests/manual/rhi/triquadcube/triangleoncuberenderer.cpp
new file mode 100644
index 0000000000..40d9615aa1
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/triangleoncuberenderer.cpp
@@ -0,0 +1,292 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "triangleoncuberenderer.h"
+#include <QFile>
+#include <QtGui/private/qshader_p.h>
+
+// toggle to test the preserved content (no clear) path
+const bool IMAGE_UNDER_OFFSCREEN_RENDERING = false;
+const bool UPLOAD_UNDERLAY_ON_EVERY_FRAME = false;
+
+const bool DS_ATT = false; // have a depth-stencil attachment for the offscreen pass
+
+const bool DEPTH_TEXTURE = false; // offscreen pass uses a depth texture (verify with renderdoc etc., ignore valid.layer about ps slot 0)
+const bool MRT = false; // two textures, the second is just cleared as the shader does not write anything (valid.layer may warn but for testing that's ok)
+
+#include "../shared/cube.h"
+
+static QShader getShader(const QString &name)
+{
+    QFile f(name);
+    if (f.open(QIODevice::ReadOnly))
+        return QShader::fromSerialized(f.readAll());
+
+    return QShader();
+}
+
+static const QSize OFFSCREEN_SIZE(512, 512);
+
+void TriangleOnCubeRenderer::initResources(QRhiRenderPassDescriptor *rp)
+{
+    m_vbuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(cube));
+    m_vbuf->setName(QByteArrayLiteral("Cube vbuf (textured with offscreen)"));
+    m_vbuf->build();
+    m_vbufReady = false;
+
+    m_ubuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 64 + 4);
+    m_ubuf->setName(QByteArrayLiteral("Cube ubuf (textured with offscreen)"));
+    m_ubuf->build();
+
+    if (IMAGE_UNDER_OFFSCREEN_RENDERING) {
+        m_image = QImage(QLatin1String(":/qt256.png")).scaled(OFFSCREEN_SIZE).convertToFormat(QImage::Format_RGBA8888);
+        if (m_r->isYUpInFramebuffer())
+            m_image = m_image.mirrored(); // just cause we'll flip texcoord Y when y up so accommodate our static background image as well
+    }
+
+    m_tex = m_r->newTexture(QRhiTexture::RGBA8, OFFSCREEN_SIZE, 1, QRhiTexture::RenderTarget);
+    m_tex->setName(QByteArrayLiteral("Texture for offscreen content"));
+    m_tex->build();
+
+    if (MRT) {
+        m_tex2 = m_r->newTexture(QRhiTexture::RGBA8, OFFSCREEN_SIZE, 1, QRhiTexture::RenderTarget);
+        m_tex2->build();
+    }
+
+    if (DS_ATT) {
+        m_offscreenTriangle.setDepthWrite(true);
+        m_ds = m_r->newRenderBuffer(QRhiRenderBuffer::DepthStencil, m_tex->pixelSize());
+        m_ds->build();
+    }
+
+    if (DEPTH_TEXTURE) {
+        m_offscreenTriangle.setDepthWrite(true);
+        m_depthTex = m_r->newTexture(QRhiTexture::D32F, OFFSCREEN_SIZE, 1, QRhiTexture::RenderTarget);
+        m_depthTex->build();
+    }
+
+    m_sampler = m_r->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::None, QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge);
+    m_sampler->build();
+
+    m_srb = m_r->newShaderResourceBindings();
+    m_srb->setBindings({
+        QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, m_ubuf),
+        QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, m_tex, m_sampler)
+    });
+    m_srb->build();
+
+    m_ps = m_r->newGraphicsPipeline();
+
+    m_ps->setDepthTest(true);
+    m_ps->setDepthWrite(true);
+    m_ps->setDepthOp(QRhiGraphicsPipeline::Less);
+
+    m_ps->setCullMode(QRhiGraphicsPipeline::Back);
+    m_ps->setFrontFace(QRhiGraphicsPipeline::CCW);
+
+    m_ps->setSampleCount(m_sampleCount);
+
+    QShader vs = getShader(QLatin1String(":/texture.vert.qsb"));
+    Q_ASSERT(vs.isValid());
+    QShader fs = getShader(QLatin1String(":/texture.frag.qsb"));
+    Q_ASSERT(fs.isValid());
+    m_ps->setShaderStages({
+        { QRhiGraphicsShaderStage::Vertex, vs },
+        { QRhiGraphicsShaderStage::Fragment, fs }
+    });
+
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({
+        { 3 * sizeof(float) },
+        { 2 * sizeof(float) }
+    });
+    inputLayout.setAttributes({
+        { 0, 0, QRhiVertexInputAttribute::Float3, 0 },
+        { 1, 1, QRhiVertexInputAttribute::Float2, 0 }
+    });
+
+    m_ps->setVertexInputLayout(inputLayout);
+    m_ps->setShaderResourceBindings(m_srb);
+    m_ps->setRenderPassDescriptor(rp);
+
+    m_ps->build();
+
+    QRhiTextureRenderTarget::Flags rtFlags = 0;
+    if (IMAGE_UNDER_OFFSCREEN_RENDERING)
+        rtFlags |= QRhiTextureRenderTarget::PreserveColorContents;
+
+    if (DEPTH_TEXTURE) {
+        QRhiTextureRenderTargetDescription desc;
+        desc.setDepthTexture(m_depthTex);
+        m_rt = m_r->newTextureRenderTarget(desc, rtFlags);
+    } else {
+        QRhiTextureRenderTargetDescription desc;
+        QRhiColorAttachment color0 { m_tex };
+        if (DS_ATT)
+            desc.setDepthStencilBuffer(m_ds);
+        if (MRT) {
+            m_offscreenTriangle.setColorAttCount(2);
+            QRhiColorAttachment color1 { m_tex2 };
+            desc.setColorAttachments({ color0, color1 });
+        } else {
+            desc.setColorAttachments({ color0 });
+        }
+        m_rt = m_r->newTextureRenderTarget(desc, rtFlags);
+    }
+
+    m_rp = m_rt->newCompatibleRenderPassDescriptor();
+    m_rt->setRenderPassDescriptor(m_rp);
+
+    m_rt->build();
+
+    m_offscreenTriangle.setRhi(m_r);
+    m_offscreenTriangle.initResources(m_rp);
+    m_offscreenTriangle.setScale(2);
+    // m_tex and the offscreen triangle are never multisample
+}
+
+void TriangleOnCubeRenderer::resize(const QSize &pixelSize)
+{
+    m_proj = m_r->clipSpaceCorrMatrix();
+    m_proj.perspective(45.0f, pixelSize.width() / (float) pixelSize.height(), 0.01f, 100.0f);
+    m_proj.translate(0, 0, -4);
+
+    m_offscreenTriangle.resize(pixelSize);
+}
+
+void TriangleOnCubeRenderer::releaseResources()
+{
+    m_offscreenTriangle.releaseResources();
+
+    delete m_ps;
+    m_ps = nullptr;
+
+    delete m_srb;
+    m_srb = nullptr;
+
+    delete m_rt;
+    m_rt = nullptr;
+
+    delete m_rp;
+    m_rp = nullptr;
+
+    delete m_sampler;
+    m_sampler = nullptr;
+
+    delete m_depthTex;
+    m_depthTex = nullptr;
+
+    delete m_tex2;
+    m_tex2 = nullptr;
+
+    delete m_tex;
+    m_tex = nullptr;
+
+    delete m_ds;
+    m_ds = nullptr;
+
+    delete m_ubuf;
+    m_ubuf = nullptr;
+
+    delete m_vbuf;
+    m_vbuf = nullptr;
+}
+
+void TriangleOnCubeRenderer::queueResourceUpdates(QRhiResourceUpdateBatch *resourceUpdates)
+{
+    if (!m_vbufReady) {
+        m_vbufReady = true;
+        resourceUpdates->uploadStaticBuffer(m_vbuf, cube);
+        qint32 flip = m_r->isYUpInFramebuffer() ? 1 : 0;
+        resourceUpdates->updateDynamicBuffer(m_ubuf, 64, 4, &flip);
+    }
+
+    m_rotation += 1.0f;
+    QMatrix4x4 mvp = m_proj;
+    mvp.translate(m_translation);
+    mvp.scale(0.5f);
+    mvp.rotate(m_rotation, 1, 0, 0);
+    resourceUpdates->updateDynamicBuffer(m_ubuf, 0, 64, mvp.constData());
+
+    // ###
+//    if (DEPTH_TEXTURE) {
+//        // m_tex is basically undefined here, be nice and transition the layout properly at least
+//        resourceUpdates->prepareTextureForUse(m_tex, QRhiResourceUpdateBatch::TextureRead);
+//    }
+}
+
+void TriangleOnCubeRenderer::queueOffscreenPass(QRhiCommandBuffer *cb)
+{
+    QRhiResourceUpdateBatch *u = m_r->nextResourceUpdateBatch();
+    m_offscreenTriangle.queueResourceUpdates(u);
+
+    if (IMAGE_UNDER_OFFSCREEN_RENDERING && !m_image.isNull()) {
+        u->uploadTexture(m_tex, m_image);
+        if (!UPLOAD_UNDERLAY_ON_EVERY_FRAME)
+            m_image = QImage();
+    }
+
+    cb->beginPass(m_rt, QColor::fromRgbF(0.0f, 0.4f, 0.7f, 1.0f), { 1.0f, 0 }, u);
+    m_offscreenTriangle.queueDraw(cb, OFFSCREEN_SIZE);
+    cb->endPass();
+}
+
+void TriangleOnCubeRenderer::queueDraw(QRhiCommandBuffer *cb, const QSize &outputSizeInPixels)
+{
+    cb->setGraphicsPipeline(m_ps);
+    cb->setViewport(QRhiViewport(0, 0, outputSizeInPixels.width(), outputSizeInPixels.height()));
+    cb->setShaderResources();
+    const QRhiCommandBuffer::VertexInput vbufBindings[] = {
+        { m_vbuf, 0 },
+        { m_vbuf, 36 * 3 * sizeof(float) }
+    };
+    cb->setVertexInput(0, 2, vbufBindings);
+    cb->draw(36);
+}
diff --git a/tests/manual/rhi/triquadcube/triangleoncuberenderer.h b/tests/manual/rhi/triquadcube/triangleoncuberenderer.h
new file mode 100644
index 0000000000..5a56bf6bd1
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/triangleoncuberenderer.h
@@ -0,0 +1,95 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef TRIANGLEONCUBERENDERER_H
+#define TRIANGLEONCUBERENDERER_H
+
+#include "trianglerenderer.h"
+
+class TriangleOnCubeRenderer
+{
+public:
+    void setRhi(QRhi *r) { m_r = r; }
+    void setSampleCount(int samples) { m_sampleCount = samples; }
+    void setTranslation(const QVector3D &v) { m_translation = v; }
+    void initResources(QRhiRenderPassDescriptor *rp);
+    void releaseResources();
+    void resize(const QSize &pixelSize);
+    void queueResourceUpdates(QRhiResourceUpdateBatch *resourceUpdates);
+    void queueOffscreenPass(QRhiCommandBuffer *cb);
+    void queueDraw(QRhiCommandBuffer *cb, const QSize &outputSizeInPixels);
+
+private:
+    QRhi *m_r;
+
+    QRhiBuffer *m_vbuf = nullptr;
+    bool m_vbufReady = false;
+    QRhiBuffer *m_ubuf = nullptr;
+    QRhiTexture *m_tex = nullptr;
+    QRhiRenderBuffer *m_ds = nullptr;
+    QRhiTexture *m_tex2 = nullptr;
+    QRhiTexture *m_depthTex = nullptr;
+    QRhiSampler *m_sampler = nullptr;
+    QRhiTextureRenderTarget *m_rt = nullptr;
+    QRhiRenderPassDescriptor *m_rp = nullptr;
+    QRhiShaderResourceBindings *m_srb = nullptr;
+    QRhiGraphicsPipeline *m_ps = nullptr;
+
+    QVector3D m_translation;
+    QMatrix4x4 m_proj;
+    float m_rotation = 0;
+    int m_sampleCount = 1; // no MSAA by default
+
+    TriangleRenderer m_offscreenTriangle;
+
+    QImage m_image;
+};
+
+#endif
diff --git a/tests/manual/rhi/triquadcube/trianglerenderer.cpp b/tests/manual/rhi/triquadcube/trianglerenderer.cpp
new file mode 100644
index 0000000000..aac76d4110
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/trianglerenderer.cpp
@@ -0,0 +1,202 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "trianglerenderer.h"
+#include <QFile>
+#include <QtGui/private/qshader_p.h>
+
+//#define VBUF_IS_DYNAMIC
+
+static float vertexData[] = { // Y up (note m_proj), CCW
+     0.0f,   0.5f,   1.0f, 0.0f, 0.0f,   0.0f, 0.0f,
+    -0.5f,  -0.5f,   0.0f, 1.0f, 0.0f,   0.0f, 1.0f,
+     0.5f,  -0.5f,   0.0f, 0.0f, 1.0f,   1.0f, 1.0f
+};
+
+static QShader getShader(const QString &name)
+{
+    QFile f(name);
+    if (f.open(QIODevice::ReadOnly))
+        return QShader::fromSerialized(f.readAll());
+
+    return QShader();
+}
+
+void TriangleRenderer::initResources(QRhiRenderPassDescriptor *rp)
+{
+#ifdef VBUF_IS_DYNAMIC
+    m_vbuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::VertexBuffer, sizeof(vertexData));
+#else
+    m_vbuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertexData));
+#endif
+    m_vbuf->setName(QByteArrayLiteral("Triangle vbuf"));
+    m_vbuf->build();
+    m_vbufReady = false;
+
+    m_ubuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 68);
+    m_ubuf->setName(QByteArrayLiteral("Triangle ubuf"));
+    m_ubuf->build();
+
+    m_srb = m_r->newShaderResourceBindings();
+    m_srb->setBindings({
+        QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, m_ubuf)
+    });
+    m_srb->build();
+
+    m_ps = m_r->newGraphicsPipeline();
+
+    QRhiGraphicsPipeline::TargetBlend premulAlphaBlend; // convenient defaults...
+    premulAlphaBlend.enable = true;
+    QVector<QRhiGraphicsPipeline::TargetBlend> rtblends;
+    for (int i = 0; i < m_colorAttCount; ++i)
+        rtblends << premulAlphaBlend;
+
+    m_ps->setTargetBlends(rtblends);
+    m_ps->setSampleCount(m_sampleCount);
+
+    if (m_depthWrite) { // TriangleOnCube may want to exercise this
+        m_ps->setDepthTest(true);
+        m_ps->setDepthOp(QRhiGraphicsPipeline::Always);
+        m_ps->setDepthWrite(true);
+    }
+
+    QShader vs = getShader(QLatin1String(":/color.vert.qsb"));
+    Q_ASSERT(vs.isValid());
+    QShader fs = getShader(QLatin1String(":/color.frag.qsb"));
+    Q_ASSERT(fs.isValid());
+    m_ps->setShaderStages({
+        { QRhiGraphicsShaderStage::Vertex, vs },
+        { QRhiGraphicsShaderStage::Fragment, fs }
+    });
+
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({
+        { 7 * sizeof(float) }
+    });
+    inputLayout.setAttributes({
+        { 0, 0, QRhiVertexInputAttribute::Float2, 0 },
+        { 0, 1, QRhiVertexInputAttribute::Float3, 2 * sizeof(float) }
+    });
+
+    m_ps->setVertexInputLayout(inputLayout);
+    m_ps->setShaderResourceBindings(m_srb);
+    m_ps->setRenderPassDescriptor(rp);
+
+    m_ps->build();
+}
+
+void TriangleRenderer::resize(const QSize &pixelSize)
+{
+    m_proj = m_r->clipSpaceCorrMatrix();
+    m_proj.perspective(45.0f, pixelSize.width() / (float) pixelSize.height(), 0.01f, 100.0f);
+    m_proj.translate(0, 0, -4);
+}
+
+void TriangleRenderer::releaseResources()
+{
+    delete m_ps;
+    m_ps = nullptr;
+
+    delete m_srb;
+    m_srb = nullptr;
+
+    delete m_ubuf;
+    m_ubuf = nullptr;
+
+    delete m_vbuf;
+    m_vbuf = nullptr;
+}
+
+void TriangleRenderer::queueResourceUpdates(QRhiResourceUpdateBatch *resourceUpdates)
+{
+#if 0
+    static int messWithBufferTrigger = 0;
+    // recreate the underlying VkBuffer every second frame
+    // to exercise setShaderResources' built-in smartness
+    if (!(messWithBufferTrigger & 1)) {
+        m_ubuf->release();
+        m_ubuf->build();
+    }
+    ++messWithBufferTrigger;
+#endif
+
+    if (!m_vbufReady) {
+        m_vbufReady = true;
+#ifdef VBUF_IS_DYNAMIC
+        resourceUpdates->updateDynamicBuffer(m_vbuf, 0, m_vbuf->size(), vertexData);
+#else
+        resourceUpdates->uploadStaticBuffer(m_vbuf, vertexData);
+#endif
+    }
+
+    m_rotation += 1.0f;
+    QMatrix4x4 mvp = m_proj;
+    mvp.translate(m_translation);
+    mvp.scale(m_scale);
+    mvp.rotate(m_rotation, 0, 1, 0);
+    resourceUpdates->updateDynamicBuffer(m_ubuf, 0, 64, mvp.constData());
+
+    m_opacity += m_opacityDir * 0.005f;
+    if (m_opacity < 0.0f || m_opacity > 1.0f) {
+        m_opacityDir *= -1;
+        m_opacity = qBound(0.0f, m_opacity, 1.0f);
+    }
+    resourceUpdates->updateDynamicBuffer(m_ubuf, 64, 4, &m_opacity);
+}
+
+void TriangleRenderer::queueDraw(QRhiCommandBuffer *cb, const QSize &outputSizeInPixels)
+{
+    cb->setGraphicsPipeline(m_ps);
+    cb->setViewport(QRhiViewport(0, 0, outputSizeInPixels.width(), outputSizeInPixels.height()));
+    cb->setShaderResources();
+    const QRhiCommandBuffer::VertexInput vbufBinding(m_vbuf, 0);
+    cb->setVertexInput(0, 1, &vbufBinding);
+    cb->draw(3);
+}
diff --git a/tests/manual/rhi/triquadcube/trianglerenderer.h b/tests/manual/rhi/triquadcube/trianglerenderer.h
new file mode 100644
index 0000000000..53d6926a62
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/trianglerenderer.h
@@ -0,0 +1,93 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef TRIANGLERENDERER_H
+#define TRIANGLERENDERER_H
+
+#include <QtGui/private/qrhi_p.h>
+
+class TriangleRenderer
+{
+public:
+    void setRhi(QRhi *r) { m_r = r; }
+    void setSampleCount(int samples) { m_sampleCount = samples; }
+    int sampleCount() const { return m_sampleCount; }
+    void setTranslation(const QVector3D &v) { m_translation = v; }
+    void setScale(float f) { m_scale = f; }
+    void setDepthWrite(bool enable) { m_depthWrite = enable; }
+    void setColorAttCount(int count) { m_colorAttCount = count; }
+    QRhiGraphicsPipeline *pipeline() const { return m_ps; }
+    void initResources(QRhiRenderPassDescriptor *rp);
+    void releaseResources();
+    void resize(const QSize &pixelSize);
+    void queueResourceUpdates(QRhiResourceUpdateBatch *resourceUpdates);
+    void queueDraw(QRhiCommandBuffer *cb, const QSize &outputSizeInPixels);
+
+private:
+    QRhi *m_r;
+
+    QRhiBuffer *m_vbuf = nullptr;
+    bool m_vbufReady = false;
+    QRhiBuffer *m_ubuf = nullptr;
+    QRhiShaderResourceBindings *m_srb = nullptr;
+    QRhiGraphicsPipeline *m_ps = nullptr;
+
+    QVector3D m_translation;
+    float m_scale = 1;
+    bool m_depthWrite = false;
+    int m_colorAttCount = 1;
+    QMatrix4x4 m_proj;
+    float m_rotation = 0;
+    float m_opacity = 1;
+    int m_opacityDir = -1;
+    int m_sampleCount = 1; // no MSAA by default
+};
+
+#endif
diff --git a/tests/manual/rhi/triquadcube/triquadcube.cpp b/tests/manual/rhi/triquadcube/triquadcube.cpp
new file mode 100644
index 0000000000..741e64be0a
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/triquadcube.cpp
@@ -0,0 +1,271 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// An example exercising more than a single feature. Enables profiling
+// (resource logging to a file) and inserts debug markers and sets some
+// object names. Can also be used to test MSAA swapchains, swapchain image
+// readback, requesting an sRGB swapchain, and some texture features.
+
+#define EXAMPLEFW_PREINIT
+#include "../shared/examplefw.h"
+#include "trianglerenderer.h"
+#include "quadrenderer.h"
+#include "texturedcuberenderer.h"
+#include "triangleoncuberenderer.h"
+
+#include <QFileInfo>
+#include <QFile>
+#include <QtGui/private/qrhiprofiler_p.h>
+
+#define PROFILE_TO_FILE
+//#define SKIP_PRESENT
+//#define USE_MSAA
+//#define USE_SRGB_SWAPCHAIN
+//#define READBACK_SWAPCHAIN
+//#define NO_VSYNC
+//#define USE_MIN_SWAPCHAIN_BUFFERS
+
+struct {
+    TriangleRenderer triRenderer;
+    QuadRenderer quadRenderer;
+    TexturedCubeRenderer cubeRenderer;
+    TriangleOnCubeRenderer liveTexCubeRenderer;
+    bool onScreenOnly = false;
+    bool triangleOnly = false;
+    QSize lastOutputSize;
+    int frameCount = 0;
+    QFile profOut;
+} d;
+
+void preInit()
+{
+#ifdef PROFILE_TO_FILE
+    rhiFlags |= QRhi::EnableProfiling;
+    const QString profFn = QFileInfo(QLatin1String("rhiprof.txt")).absoluteFilePath();
+    qDebug("Writing profiling output to %s", qPrintable(profFn));
+    d.profOut.setFileName(profFn);
+    d.profOut.open(QIODevice::WriteOnly);
+#endif
+
+#ifdef SKIP_PRESENT
+    endFrameFlags |= QRhi::SkipPresent;
+#endif
+
+#ifdef USE_MSAA
+    sampleCount = 4; // enable 4x MSAA (except for the render-to-texture pass)
+#endif
+
+#ifdef READBACK_SWAPCHAIN
+    scFlags |= QRhiSwapChain::UsedAsTransferSource;
+#endif
+
+#ifdef USE_SRGB_SWAPCHAIN
+    scFlags |= QRhiSwapChain::sRGB;
+#endif
+
+#ifdef NO_VSYNC
+    scFlags |= QRhiSwapChain::NoVSync;
+#endif
+
+#ifdef USE_MIN_SWAPCHAIN_BUFFERS
+    scFlags |= QRhiSwapChain::MinimalBufferCount;
+#endif
+
+    // For OpenGL some of these are incorporated into the QSurfaceFormat by
+    // examplefw.h after returning from here as that is out of the RHI's control.
+}
+
+void Window::customInit()
+{
+#ifdef PROFILE_TO_FILE
+    m_r->profiler()->setDevice(&d.profOut);
+#endif
+
+    d.triRenderer.setRhi(m_r);
+    d.triRenderer.setSampleCount(sampleCount);
+    d.triRenderer.initResources(m_rp);
+
+    if (!d.triangleOnly) {
+        d.triRenderer.setTranslation(QVector3D(0, 0.5f, 0));
+
+        d.quadRenderer.setRhi(m_r);
+        d.quadRenderer.setSampleCount(sampleCount);
+        d.quadRenderer.setPipeline(d.triRenderer.pipeline());
+        d.quadRenderer.initResources(m_rp);
+        d.quadRenderer.setTranslation(QVector3D(1.5f, -0.5f, 0));
+
+        d.cubeRenderer.setRhi(m_r);
+        d.cubeRenderer.setSampleCount(sampleCount);
+        d.cubeRenderer.initResources(m_rp);
+        d.cubeRenderer.setTranslation(QVector3D(0, -0.5f, 0));
+    }
+
+    if (!d.onScreenOnly) {
+        d.liveTexCubeRenderer.setRhi(m_r);
+        d.liveTexCubeRenderer.setSampleCount(sampleCount);
+        d.liveTexCubeRenderer.initResources(m_rp);
+        d.liveTexCubeRenderer.setTranslation(QVector3D(-2.0f, 0, 0));
+    }
+
+    // Put the gpu mem allocator statistics to the profiling stream after doing
+    // all the init. (where applicable)
+    m_r->profiler()->addVMemAllocatorStats();
+
+    // Check some features/limits.
+    qDebug("isFeatureSupported(MultisampleTexture): %d", m_r->isFeatureSupported(QRhi::MultisampleTexture));
+    qDebug("isFeatureSupported(MultisampleRenderBuffer): %d", m_r->isFeatureSupported(QRhi::MultisampleRenderBuffer));
+    qDebug("isFeatureSupported(DebugMarkers): %d", m_r->isFeatureSupported(QRhi::DebugMarkers));
+    qDebug("isFeatureSupported(Timestamps): %d", m_r->isFeatureSupported(QRhi::Timestamps));
+    qDebug("isFeatureSupported(Instancing): %d", m_r->isFeatureSupported(QRhi::Instancing));
+    qDebug("isFeatureSupported(CustomInstanceStepRate): %d", m_r->isFeatureSupported(QRhi::CustomInstanceStepRate));
+    qDebug("isFeatureSupported(PrimitiveRestart): %d", m_r->isFeatureSupported(QRhi::PrimitiveRestart));
+    qDebug("isFeatureSupported(NonDynamicUniformBuffers): %d", m_r->isFeatureSupported(QRhi::NonDynamicUniformBuffers));
+    qDebug("isFeatureSupported(NonFourAlignedEffectiveIndexBufferOffset): %d", m_r->isFeatureSupported(QRhi::NonFourAlignedEffectiveIndexBufferOffset));
+    qDebug("isFeatureSupported(NPOTTextureRepeat): %d", m_r->isFeatureSupported(QRhi::NPOTTextureRepeat));
+    qDebug("isFeatureSupported(RedOrAlpha8IsRed): %d", m_r->isFeatureSupported(QRhi::RedOrAlpha8IsRed));
+    qDebug("isFeatureSupported(ElementIndexUint): %d", m_r->isFeatureSupported(QRhi::ElementIndexUint));
+    qDebug("Min 2D texture width/height: %d", m_r->resourceLimit(QRhi::TextureSizeMin));
+    qDebug("Max 2D texture width/height: %d", m_r->resourceLimit(QRhi::TextureSizeMax));
+    qDebug("Max color attachment count: %d", m_r->resourceLimit(QRhi::MaxColorAttachments));
+}
+
+void Window::customRelease()
+{
+    d.triRenderer.releaseResources();
+
+    if (!d.triangleOnly) {
+        d.quadRenderer.releaseResources();
+        d.cubeRenderer.releaseResources();
+    }
+
+    if (!d.onScreenOnly)
+        d.liveTexCubeRenderer.releaseResources();
+}
+
+void Window::customRender()
+{
+    const QSize outputSize = m_sc->currentPixelSize();
+    QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
+
+    if (outputSize != d.lastOutputSize) {
+        d.triRenderer.resize(outputSize);
+        if (!d.triangleOnly) {
+            d.quadRenderer.resize(outputSize);
+            d.cubeRenderer.resize(outputSize);
+        }
+        if (!d.onScreenOnly)
+            d.liveTexCubeRenderer.resize(outputSize);
+        d.lastOutputSize = outputSize;
+    }
+
+    if (!d.onScreenOnly) {
+        cb->debugMarkBegin("Offscreen triangle pass");
+        d.liveTexCubeRenderer.queueOffscreenPass(cb);
+        cb->debugMarkEnd();
+    }
+
+    QRhiResourceUpdateBatch *u = m_r->nextResourceUpdateBatch();
+    d.triRenderer.queueResourceUpdates(u);
+    if (!d.triangleOnly) {
+        d.quadRenderer.queueResourceUpdates(u);
+        d.cubeRenderer.queueResourceUpdates(u);
+    }
+    if (!d.onScreenOnly)
+        d.liveTexCubeRenderer.queueResourceUpdates(u);
+
+    cb->beginPass(m_sc->currentFrameRenderTarget(), QColor::fromRgbF(0.4f, 0.7f, 0.0f, 1.0f), { 1.0f, 0 }, u);
+    cb->debugMarkBegin(QByteArrayLiteral("Triangle"));
+    d.triRenderer.queueDraw(cb, outputSize);
+    cb->debugMarkEnd();
+    if (!d.triangleOnly) {
+        cb->debugMarkMsg(QByteArrayLiteral("More stuff"));
+        cb->debugMarkBegin(QByteArrayLiteral("Quad"));
+        d.quadRenderer.queueDraw(cb, outputSize);
+        cb->debugMarkEnd();
+        cb->debugMarkBegin(QByteArrayLiteral("Cube"));
+        d.cubeRenderer.queueDraw(cb, outputSize);
+        cb->debugMarkEnd();
+    }
+    if (!d.onScreenOnly) {
+        cb->debugMarkMsg(QByteArrayLiteral("Even more stuff"));
+        cb->debugMarkBegin(QByteArrayLiteral("Cube with offscreen triangle"));
+        d.liveTexCubeRenderer.queueDraw(cb, outputSize);
+        cb->debugMarkEnd();
+    }
+
+    QRhiResourceUpdateBatch *passEndUpdates = nullptr;
+#ifdef READBACK_SWAPCHAIN
+    passEndUpdates = m_r->nextResourceUpdateBatch();
+    QRhiReadbackDescription rb; // no texture given -> backbuffer
+    QRhiReadbackResult *rbResult = new QRhiReadbackResult;
+    int frameNo = d.frameCount;
+    rbResult->completed = [this, rbResult, frameNo] {
+        {
+            QImage::Format fmt = rbResult->format == QRhiTexture::BGRA8 ? QImage::Format_ARGB32_Premultiplied
+                                                                        : QImage::Format_RGBA8888_Premultiplied;
+            const uchar *p = reinterpret_cast<const uchar *>(rbResult->data.constData());
+            QImage image(p, rbResult->pixelSize.width(), rbResult->pixelSize.height(), fmt);
+            QString fn = QString::asprintf("frame%d.png", frameNo);
+            fn = QFileInfo(fn).absoluteFilePath();
+            qDebug("Saving into %s", qPrintable(fn));
+            if (m_r->isYUpInFramebuffer())
+                image.mirrored().save(fn);
+            else
+                image.save(fn);
+        }
+        delete rbResult;
+    };
+    passEndUpdates->readBackTexture(rb, rbResult);
+#endif
+
+    cb->endPass(passEndUpdates);
+
+    d.frameCount += 1;
+}
diff --git a/tests/manual/rhi/triquadcube/triquadcube.pro b/tests/manual/rhi/triquadcube/triquadcube.pro
new file mode 100644
index 0000000000..0002b3cad1
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/triquadcube.pro
@@ -0,0 +1,18 @@
+TEMPLATE = app
+
+QT += gui-private
+
+SOURCES = \
+    triquadcube.cpp \
+    trianglerenderer.cpp \
+    quadrenderer.cpp \
+    texturedcuberenderer.cpp \
+    triangleoncuberenderer.cpp
+
+HEADERS = \
+    trianglerenderer.h \
+    quadrenderer.h \
+    texturedcuberenderer.h \
+    triangleoncuberenderer.h
+
+RESOURCES = triquadcube.qrc
diff --git a/tests/manual/rhi/triquadcube/triquadcube.qrc b/tests/manual/rhi/triquadcube/triquadcube.qrc
new file mode 100644
index 0000000000..41b72edc41
--- /dev/null
+++ b/tests/manual/rhi/triquadcube/triquadcube.qrc
@@ -0,0 +1,9 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+  <file alias="color.vert.qsb">../shared/color.vert.qsb</file>
+  <file alias="color.frag.qsb">../shared/color.frag.qsb</file>
+  <file alias="texture.vert.qsb">../shared/texture.vert.qsb</file>
+  <file alias="texture.frag.qsb">../shared/texture.frag.qsb</file>
+  <file alias="qt256.png">../shared/qt256.png</file>
+</qresource>
+</RCC>