D3DX Effects and the DirectX 9 High-Level Shading ... - Nvidia

HLSL Data Types
• Matrix types
– By default all 4x4 elements are floats
– Various types already predefined
matrix mVar;
matrix mVar;
float4x4 vVar;
int2x3 vVar1;
• Access to matrix elements
mVar._m00, mVar._11, mVar[0][0]
mVar._m00_m01_m02_m03, mVar[0]
• Can control matrix orientation
#pragma pack_matrix (row_major);