D3DHAL_DP2WINFO - NtDoc
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headers
// d3dhal.h
typedef struct _D3DHAL_DP2WINFO {
D3DVALUE dvWNear;
D3DVALUE dvWFar;
} D3DHAL_DP2WINFO;
View the official Windows Driver Kit DDI referenceNo description available.
The D3DHAL_DP2WINFO structure is used to inform the driver of the w-range to be used for w-buffering.
dvWNeardvWFarSpecify the near and far limit of the w-buffer, respectively. These members can be any valid floating-point values.
The D3dDrawPrimitives2 callback parses a D3DHAL_DP2WINFO structure from the command buffer and updates the driver's scaling parameters for w-buffering when D3DHAL_DP2COMMAND is set to D3DDP2OP_WINFO.
One D3DHAL_DP2WINFO structure follows the D3DHAL_DP2COMMAND structure in the command buffer.
The driver should update the w-buffer portion of its internal rendering context with the w-ranges specified in this structure. The driver can use this information to scale the w-buffer.
Video adapters that do not support this feature should ignore and skip over these instructions and continue processing the rest of the command buffer.
D3DDP2OP_WINFO