QSGVertexColorMaterial Class
The QSGVertexColorMaterial class provides a convenient way of rendering per-vertex colored geometry in the scene graph. More...
Header: | #include <QSGVertexColorMaterial> |
Inherits: | QSGMaterial |
Public Functions
Reimplemented Public Functions
virtual int | compare(const QSGMaterial *other) const override |
Reimplemented Protected Functions
virtual QSGMaterialShader * | createShader(QSGRendererInterface::RenderMode renderMode) const override |
virtual QSGMaterialType * | type() const override |
Detailed Description
\inmodule
QtQuick \ingroup
qtquick-scenegraph-materials
Warning: This utility class is only functional when running with the default backend of the Qt Quick scenegraph.
The vertex color material will give each vertex in a geometry a color. Pixels between vertices will be linearly interpolated. The colors can contain transparency.
The geometry to be rendered with vertex color must have the following layout. Attribute position 0 must contain vertices. Attribute position 1 must contain colors, a tuple of 4 values with RGBA layout. Both floats in the range of 0 to 1 and unsigned bytes in the range 0 to 255 are valid for the color values.
Note: The rendering pipeline expects pixels with premultiplied alpha.
QSGGeometry::defaultAttributes_ColoredPoint2D() can be used to construct an attribute set that is compatible with this material.
The vertex color material respects both current opacity and current matrix when updating it's rendering state.
Member Function Documentation
QSGVertexColorMaterial::QSGVertexColorMaterial()
Creates a new vertex color material.
[override virtual]
int QSGVertexColorMaterial::compare(const QSGMaterial *other) const
Reimplements: QSGMaterial::compare(const QSGMaterial *other) const.
int QSGVertexColorMaterial::compare() const
As the vertex color material has all its state in the vertex attributes, all materials will be equal.
\internal
[override virtual protected]
QSGMaterialShader *QSGVertexColorMaterial::createShader(QSGRendererInterface::RenderMode renderMode) const
Reimplements: QSGMaterial::createShader(QSGRendererInterface::RenderMode renderMode) const.
\internal
[override virtual protected]
QSGMaterialType *QSGVertexColorMaterial::type() const
Reimplements: QSGMaterial::type() const.
\internal