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Qt3DRender::QTexture2D does not handle opacity. Therefore, it is not possible to use the default Qt3DExtras::QDiffuseSpecularMaterial implementation. This problem is solved by using Qt3DRender::QMaterial and copying the Qt3DExtras::QDiffuseSpecularMaterial shaders from Qt3D source code. Then, the texture color needs to be changed to set the correct opacity. This is achieved in the fragement shader: ``` vec4 diffuseTextureColor = vec4(texture(diffuseTexture, texCoord).rgb, opacity); ``` instead of the default: ``` vec4 diffuseTextureColor = vec4(texture(diffuseTexture, texCoord)); ``` As far as the FrameGraph is concerned, this is already handled in Qgs3DMapScene::finalizeNewEntity which checks for all material which have an effect with an opacity parameter.
157 lines
4.1 KiB
Plaintext
157 lines
4.1 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/3d/materials/qgsphongtexturedmaterialsettings.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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class QgsPhongTexturedMaterialSettings : QgsAbstractMaterialSettings
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{
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%Docstring(signature="appended")
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A phong shading model with diffuse texture map.
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.. warning::
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This is not considered stable API, and may change in future QGIS releases. It is
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exposed to the Python bindings as a tech preview only.
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.. versionadded:: 3.16
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%End
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%TypeHeaderCode
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#include "qgsphongtexturedmaterialsettings.h"
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%End
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public:
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QgsPhongTexturedMaterialSettings();
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%Docstring
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Constructor for QgsPhongTexturedMaterialSettings.
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%End
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virtual QString type() const;
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static bool supportsTechnique( QgsMaterialSettingsRenderingTechnique technique );
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%Docstring
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Returns ``True`` if the specified ``technique`` is supported by the Phong material.
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%End
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static QgsAbstractMaterialSettings *create() /Factory/;
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%Docstring
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Returns a new instance of QgsPhongTexturedMaterialSettings.
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%End
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virtual QgsPhongTexturedMaterialSettings *clone() const /Factory/;
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QColor ambient() const;
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%Docstring
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Returns ambient color component
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%End
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QColor specular() const;
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%Docstring
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Returns specular color component
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%End
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float shininess() const;
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%Docstring
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Returns shininess of the surface
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%End
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virtual QMap<QString, QString> toExportParameters() const;
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QString diffuseTexturePath() const;
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%Docstring
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Returns the diffuse texture path.
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.. seealso:: :py:func:`setDiffuseTexturePath`
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%End
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float textureScale() const;
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%Docstring
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Returns the texture scale
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The texture scale changes the size of the displayed texture in the 3D scene
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If the texture scale is less than 1 the texture will be stretched
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%End
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bool requiresTextureCoordinates() const;
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%Docstring
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Returns ``True`` if the material requires texture coordinates to be generated
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during triangulation.quiresTextureCoordinates
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%End
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float textureRotation() const;
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%Docstring
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Returns the texture rotation, in degrees.
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%End
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float opacity() const;
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%Docstring
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Returns the opacity of the surface
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.. versionadded:: 3.28
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%End
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void setAmbient( const QColor &ambient );
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%Docstring
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Sets ambient color component
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%End
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void setSpecular( const QColor &specular );
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%Docstring
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Sets specular color component
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%End
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void setShininess( float shininess );
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%Docstring
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Sets shininess of the surface
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%End
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void setDiffuseTexturePath( const QString &path );
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%Docstring
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Sets the ``path`` of the diffuse texture.
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.. seealso:: :py:func:`diffuseTexturePath`
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%End
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void setTextureScale( float scale );
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%Docstring
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Sets the texture scale
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The texture scale changes the size of the displayed texture in the 3D scene
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If the texture scale is less than 1 the texture will be stretched
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%End
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void setTextureRotation( float rotation );
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%Docstring
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Sets the texture rotation in degrees
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%End
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void setOpacity( float opacity );
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%Docstring
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Sets opacity of the surface.
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.. versionadded:: 3.28
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%End
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virtual void readXml( const QDomElement &elem, const QgsReadWriteContext &context );
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virtual void writeXml( QDomElement &elem, const QgsReadWriteContext &context ) const;
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bool operator==( const QgsPhongTexturedMaterialSettings &other ) const;
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};
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/3d/materials/qgsphongtexturedmaterialsettings.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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