D3DXMESHOPT

Specifies the type of mesh optimization to be performed.

typedef enum D3DXMESHOPT
{
    D3DXMESHOPT_COMPACT = 0x01000000,
    D3DXMESHOPT_ATTRSORT = 0x02000000,
    D3DXMESHOPT_VERTEXCACHE = 0x04000000,
    D3DXMESHOPT_STRIPREORDER = 0x08000000,
    D3DXMESHOPT_IGNOREVERTS = 0x10000000,
    D3DXMESHOPT_DONOTSPLIT = 0x20000000,
    D3DXMESHOPT_DEVICEINDEPENDENT = 0x40000000,
} D3DXMESHOPT, *LPD3DXMESHOPT;

Constants

D3DXMESHOPT_COMPACT

Reorders faces to remove unused vertices and faces.

D3DXMESHOPT_ATTRSORT

Reorders faces to optimize for fewer attribute bundle state changes and enhanced ID3DXBaseMesh::DrawSubset performance.

D3DXMESHOPT_VERTEXCACHE

Reorders faces to increase the cache hit rate of vertex caches.

D3DXMESHOPT_STRIPREORDER

Reorders faces to maximize length of adjacent triangles.

D3DXMESHOPT_IGNOREVERTS

Optimize the faces only; do not optimize the vertices.

D3DXMESHOPT_DONOTSPLIT

While attribute sorting, do not split vertices that are shared between attribute groups.

D3DXMESHOPT_DEVICEINDEPENDENT

Affects the vertex cache size. Using this flag specifies a default vertex cache size that works well on legacy hardware.

Remarks

The D3DXMESHOPT_STRIPREORDER and D3DXMESHOPT_VERTEXCACHE optimization flags are mutually exclusive.

The D3DXMESHOPT_SHAREVB flag has been removed from this enumeration. Use D3DXMESH_VB_SHARE instead, in D3DXMESH.