A3DMeshData

struct A3DMeshData

Representation of a mesh obtained using A3DRiComputeMesh().

24.0

This structure provides a consistent way to access mesh information. Use A3DRiComputeMesh() to populate this structure from an A3DRiRepresentationItem entity.

embed:rst:inline :doc:`/guide/geometry/using_a3d_mesh_data`

A fully detailed version of the structure layout and usage is presented in .

A3DRiComputeMesh()

Index

Variables

• m_uiCoordSize
• m_pdCoords
• m_uiNormalSize
• m_pdNormals
• m_uiTextureUVSize
• m_pdTextureUV
• m_uiFaceSize
• m_puiTriangleCountPerFace
• m_puiVertexIndicesPerFace
• m_puiTextureCountPerFace
• m_puiTextureUVIndicesPerFace
• m_uiStyleIndex
• m_puiStyleIndexPerFace

Variables

A3DUns32 A3DMeshData.m_uiCoordSize

A3DUns32

Number of elements in m_pdCoords.

Corresponds to three times the number of vertices.

A3DDouble *A3DMeshData.m_pdCoords

A3DDouble*

Array of vertex coordinates.

Stored as a sequence of {x, y, z} triplets.

A3DUns32 A3DMeshData.m_uiNormalSize

A3DUns32

Number of elements in m_pdNormals.

Corresponds to three times the number of vertices.

A3DDouble *A3DMeshData.m_pdNormals

A3DDouble*

Array of normal coordinates.

Stored as a sequence of {x, y, z} triplets.

A3DUns32 A3DMeshData.m_uiTextureUVSize

A3DUns32

The number of elements in m_pdTextureUV.

Corresponds to two times the number of texture coordinates.

A3DDouble *A3DMeshData.m_pdTextureUV

A3DDouble*

Array of UV-coordinates.

Stored as a sequence of {u, v} pairs.

A3DUns32 A3DMeshData.m_uiFaceSize

A3DUns32

Total number of faces in the mesh.

Determines the size of various other fields in the structure.

A3DUns32 *A3DMeshData.m_puiTriangleCountPerFace

A3DUns32*

Array containing the number of triangles per face.

Size is m_uiFaceSize.

A3DUns32 *A3DMeshData.m_puiVertexIndicesPerFace

A3DUns32*

Array of vertex indices.

Indices are ordered per face and per triangle. Size depends on m_puiTriangleCountPerFace.

A3DUns32 *A3DMeshData.m_puiTextureCountPerFace

A3DUns32*

Array of texture counts for each face.

Size is m_uiFaceSize.

A3DUns32 *A3DMeshData.m_puiTextureUVIndicesPerFace

A3DUns32*

Array of texture indices.

Indices are ordered per face and per triangle. Size depends on m_puiTriangleCountPerFace and m_puiTextureCountPerFace.

A3DUns32 A3DMeshData.m_uiStyleIndex

A3DUns32

The style index used for the whole mesh.

Used with A3DGlobalGetGraphStyleData().

A3DUns32 *A3DMeshData.m_puiStyleIndexPerFace

A3DUns32*

Array of style indices set per face.

Used with A3DGlobalGetGraphStyleData().