Add new material QPerVertexColorMaterial

The new QPerVertexColorMaterial class provides color per vertex rendering.

Change-Id: Idc87c21a07c2c8cd1ebfd5bed54c300c55e307ba
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

3 files changed, 105 insertions, 0 deletions

diff --git a/src/quick3d/imports/render/defaults/defaults.pri b/src/quick3d/imports/render/defaults/defaults.pri
index 76b67a420..797dd09f0 100644
--- a/src/quick3d/imports/render/defaults/defaults.pri
+++ b/src/quick3d/imports/render/defaults/defaults.pri
@@ -12,3 +12,4 @@ QML_FILES = \
     $$PWD/qml/NormalDiffuseMapAlphaMaterial.qml \
     $$PWD/qml/NormalDiffuseSpecularMapMaterial.qml \
     $$PWD/qml/ForwardRenderer.qml \
+    $$PWD/qml/PerVertexColorMaterial.qml \
diff --git a/src/quick3d/imports/render/defaults/qml/PerVertexColorMaterial.qml b/src/quick3d/imports/render/defaults/qml/PerVertexColorMaterial.qml
new file mode 100644
index 000000000..6051ca3b9
--- /dev/null
+++ b/src/quick3d/imports/render/defaults/qml/PerVertexColorMaterial.qml
@@ -0,0 +1,103 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Lorenz Esch (TU Ilmenau).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import Qt3D 2.0
+import Qt3D.Render 2.0
+
+Material {
+    id:root
+
+    parameters: [
+        Parameter { name: "lightPosition"; value: Qt.vector4d(1.0, 1.0, 0.0, 1.0) },
+        Parameter { name: "lightIntensity"; value: Qt.vector3d(1.0, 1.0, 1.0) }
+    ]
+
+    ShaderProgram {
+        id: gl3PerVertexColorShader
+        vertexShaderCode: loadSource("qrc:/shaders/gl3/pervertexcolor.vert")
+        fragmentShaderCode: loadSource("qrc:/shaders/gl3/pervertexcolor.frag")
+    }
+
+    ShaderProgram {
+        id: gl2es2PerVertexColorShader
+        vertexShaderCode: loadSource("qrc:/shaders/es2/pervertexcolor.vert")
+        fragmentShaderCode: loadSource("qrc:/shaders/es2/pervertexcolor.frag")
+    }
+
+    effect: Effect {
+        techniques: [
+            // GL 3 Technique
+            Technique {
+                openGLFilter {
+                    api: OpenGLFilter.Desktop
+                    profile: OpenGLFilter.Core
+                    majorVersion: 3
+                    minorVersion: 1
+                }
+                renderPasses: RenderPass {
+                    shaderProgram: gl3PerVertexColorShader
+                }
+            },
+
+            // GL 2 Technique
+            Technique {
+                openGLFilter {
+                    api: OpenGLFilter.Desktop
+                    profile: OpenGLFilter.None
+                    majorVersion: 2
+                    minorVersion: 0
+                }
+                renderPasses: RenderPass {
+                    shaderProgram: gl2es2PerVertexColorShader
+                }
+            },
+
+            // ES 2 Technique
+            Technique {
+                openGLFilter {
+                    api: OpenGLFilter.ES
+                    profile: OpenGLFilter.None
+                    majorVersion: 2
+                    minorVersion: 0
+                }
+                renderPasses: RenderPass {
+                    shaderProgram: gl2es2PerVertexColorShader
+                }
+            }
+        ]
+    }
+}
+
diff --git a/src/quick3d/imports/render/qt3dquick3drenderplugin.cpp b/src/quick3d/imports/render/qt3dquick3drenderplugin.cpp
index 2a8e7075d..0a1250f75 100644
--- a/src/quick3d/imports/render/qt3dquick3drenderplugin.cpp
+++ b/src/quick3d/imports/render/qt3dquick3drenderplugin.cpp
@@ -120,6 +120,7 @@ static const struct {
     { "NormalDiffuseMapAlphaMaterial", 2, 0 },
     { "NormalDiffuseMapMaterial", 2, 0 },
     { "NormalDiffuseSpecularMapMaterial", 2, 0 },
+    { "PerVertexColorMaterial", 2, 0 },
     // FrameGraphs
     { "ForwardRenderer", 2, 0 }
 };