TextureDefinitionData structure. More...
Detailed Description
TextureDefinitionData structure.
- Version
- 2.0
The picture index refers to a picture in the picture array of the global data.
The m_ucTextureDimension member represents the dimension of the image. Possible values are 1, 2 or 3 (1 and 3 are reserved for future use)
The m_uiMappingAttributes member is a bitmask that defines the procedure to apply the texture (see Texture Mapping Attribute). This information can be completed with additional information such as intensity and involved color/alpha components.
The m_pdMappingAttributesIntensity member is an array of values that specify texture intensity values. Each of these members can be set to 0 or to the number of procedures deduced from the texture mapping attributes. If 0, intensity is set to 1. Otherwise, values should be in the range [0.0,1.0] and correspond to each non-zero bit of texture mapping attributes respectively. Same for the texture mapping attributes components, for which the default value is kA3DTextureMappingComponentsRgba (Texture Mapping Attribute Components).
Multiple procedures for texture application are reserved for future use. Therefore A3DGraphTextureDefinitionData::m_pdMappingAttributesIntensity and A3DGraphTextureDefinitionData::m_pucMappingAttributesComponents can contain at most one element:
Here is some pseudocode that sets attribute values that are within the current limitation in texture mapping settings:
Or:
For information on values for the m_dAlphaTestReference member or the m_dAlphaTestReference member, see Texture Alpha Test. The latter member is a threshold value for the alpha test, which is used in conjunction with the m_dAlphaTestReference member.
- See also
- A3DGlobal
Field Documentation
A3DUns16 A3DGraphTextureDefinitionData::m_usStructSize |
Reserved; should be initialized by A3D_INITIALIZE_DATA.
A3DUns8 A3DGraphTextureDefinitionData::m_ucTextureDimension |
Dimension of the texture.
A3DETextureMappingType A3DGraphTextureDefinitionData::m_eMappingType |
Mapping type.
A3DETextureMappingOperator A3DGraphTextureDefinitionData::m_eMappingOperator |
Mapping operator.
A3DMiscCartesianTransformation* A3DGraphTextureDefinitionData::m_pOperatorTransfo |
Optional mapping transformation.
A3DUns32 A3DGraphTextureDefinitionData::m_uiMappingAttributes |
Defines a method to map a texture. See explanations above.
- See also
- Texture Mapping Attribute
A3DUns32 A3DGraphTextureDefinitionData::m_uiMappingAttributesIntensitySize |
Size of next array.
A3DDouble* A3DGraphTextureDefinitionData::m_pdMappingAttributesIntensity |
Intensities for attributes.
A3DUns32 A3DGraphTextureDefinitionData::m_uiMappingAttributesComponentsSize |
Size of next array.
A3DUns8* A3DGraphTextureDefinitionData::m_pucMappingAttributesComponents |
Components for attributes.
A3DETextureFunction A3DGraphTextureDefinitionData::m_eTextureFunction |
Defines how to paint a texture on the surface being rendered.
- See also
- Texture Function
A3DDouble A3DGraphTextureDefinitionData::m_dRed |
Reserved for future use. Blend color component in the range [0.0,1.0].
A3DDouble A3DGraphTextureDefinitionData::m_dGreen |
Reserved for future use. Blend color component in the range [0.0,1.0].
A3DDouble A3DGraphTextureDefinitionData::m_dBlue |
Reserved for future use. Blend color component in the range [0.0,1.0].
A3DDouble A3DGraphTextureDefinitionData::m_dAlpha |
Reserved for future use. Blend alpha component in the range [0.0,1.0].
A3DETextureBlendParameter A3DGraphTextureDefinitionData::m_eBlend_src_RGB |
Reserved for future use.
- See also
- Texture Blend Parameter
A3DETextureBlendParameter A3DGraphTextureDefinitionData::m_eBlend_dst_RGB |
Reserved for future use.
- See also
- Texture Blend Parameter
A3DETextureBlendParameter A3DGraphTextureDefinitionData::m_eBlend_src_Alpha |
Reserved for future use.
- See also
- Texture Blend Parameter
A3DETextureBlendParameter A3DGraphTextureDefinitionData::m_eBlend_dst_Alpha |
Reserved for future use.
- See also
- Texture Blend Parameter
A3DUns8 A3DGraphTextureDefinitionData::m_ucTextureApplyingMode |
Defines special applying modes of a texture Texture Applying Mode.
A3DETextureAlphaTest A3DGraphTextureDefinitionData::m_eTextureAlphaTest |
Reserved for future use. Defines how to use Alpha test.
- See also
- Texture Alpha Test
A3DDouble A3DGraphTextureDefinitionData::m_dAlphaTestReference |
Threshold value for alpha test; used in conjunction with m_eTextureAlphaTest.
A3DETextureWrappingMode A3DGraphTextureDefinitionData::m_eTextureWrappingModeS |
Repeating mode first direction.
- See also
- Texture Wrapping Mode
A3DETextureWrappingMode A3DGraphTextureDefinitionData::m_eTextureWrappingModeT |
Repeating mode second direction.
- See also
- Texture Wrapping Mode
A3DGraphTextureTransformation* A3DGraphTextureDefinitionData::m_pTextureTransfo |
Optional texture transformation.
- See also
- Texture Transformation