Remove CustomParticle

The implementation is intertwined with the direct GL path and not
really portable to RHI.

Fixes: QTBUG-78574
Change-Id: I6ac8707544c19a24661f07e0e6d2fc405e49cbff
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

1 files changed, 0 insertions, 54 deletions

diff --git a/examples/quick/particles/customparticle/doc/src/customparticle.qdoc b/examples/quick/particles/customparticle/doc/src/customparticle.qdoc
deleted file mode 100644
index a660d4b5a7..0000000000
--- a/examples/quick/particles/customparticle/doc/src/customparticle.qdoc
+++ /dev/null
@@ -1,54 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** 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.
-**
-** GNU Free Documentation License Usage
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file. Please review the following information to ensure
-** the GNU Free Documentation License version 1.3 requirements
-** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
-    \title Qt Quick Particles Examples - CustomParticle
-    \example particles/customparticle
-    \brief This is a collection of examples using CustomParticle in the QML particle system.
-    \image qml-customparticle-example.png
-
-    This is a collection of small QML examples relating to using CustomParticle in the particle system.
-    Each example is a small QML file emphasizing a different way to use CustomParticle.
-
-    Blur Particles adds a blur effect to the particles, which increases over the particle's life time.
-    It uses a custom vertex shader:
-    \snippet particles/customparticle/content/blurparticles.qml vertex
-    to propagate life time simulation to a custom fragment shader:
-    \snippet particles/customparticle/content/blurparticles.qml fragment
-    which has access to both the normal image sampler and a blurred sampler, the image plus a ShaderEffect.
-
-    Fragment Shader just uses the particle system as a vertex delivery system.
-    \snippet particles/customparticle/content/fragmentshader.qml 0
-
-    Image Colors uses CustomParticle to assign colors to particles based on their location in a picture.
-    The vertex shader,
-    \snippet particles/customparticle/content/imagecolors.qml vertex
-    passes along the starting position for each vertex to the fragment shader,
-    \snippet particles/customparticle/content/imagecolors.qml fragment
-    which uses it to determine the color for that particle.
-
-*/