| UID | title | description | old-location | tech.root | ms.date | keywords | ms.keywords | req.header | req.include-header | req.target-type | req.target-min-winverclnt | req.target-min-winversvr | req.kmdf-ver | req.umdf-ver | req.ddi-compliance | req.unicode-ansi | req.idl | req.max-support | req.namespace | req.assembly | req.type-library | req.lib | req.dll | req.irql | targetos | req.typenames | f1_keywords | topic_type | api_type | api_location | api_name | ||||||||||||||
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NS:d3dhal._D3DHAL_DP2TRIANGLEFAN |
_D3DHAL_DP2TRIANGLEFAN (d3dhal.h) |
One D3DHAL_DP2TRIANGLEFAN structure is parsed from the command buffer by the D3dDrawPrimitives2 callback when the D3DHAL_DP2COMMAND structure's bCommand member is set to D3DDP2OP_TRIANGLEFAN, and is used to render a triangle fan. |
display\d3dhal_dp2trianglefan.htm |
display |
05/10/2018 |
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*LPD3DHAL_DP2TRIANGLEFAN, D3DHAL_DP2TRIANGLEFAN, D3DHAL_DP2TRIANGLEFAN structure [Display Devices], LPD3DHAL_DP2TRIANGLEFAN, LPD3DHAL_DP2TRIANGLEFAN structure pointer [Display Devices], _D3DHAL_DP2TRIANGLEFAN, d3dhal/D3DHAL_DP2TRIANGLEFAN, d3dhal/LPD3DHAL_DP2TRIANGLEFAN, d3dstrct_6726a70e-3ff1-4a9f-ac1e-46acf9be04e9.xml, display.d3dhal_dp2trianglefan |
d3dhal.h |
D3dhal.h |
Windows |
Windows |
D3DHAL_DP2TRIANGLEFAN, *LPD3DHAL_DP2TRIANGLEFAN |
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One D3DHAL_DP2TRIANGLEFAN structure is parsed from the command buffer by the D3dDrawPrimitives2 callback when the D3DHAL_DP2COMMAND structure's bCommand member is set to D3DDP2OP_TRIANGLEFAN, and is used to render a triangle fan.
Specifies the index into the vertex buffer containing coordinate data for the initial vertex of the triangle fan.
One D3DHAL_DP2TRIANGLEFAN structure follows the D3DHAL_DP2COMMAND structure in the command buffer.
D3dDrawPrimitives2 should process a total of wPrimitiveCount + 2 vertices from the vertex buffer, three vertices per triangle, rendering wPrimitiveCount triangles. Starting from the vertex buffer offset, the sequence of triangles rendered is (wVStart + 1, wVStart + 2, wVStart ), (wVStart + 2, wVStart + 3, wVStart ),..., (wVStart + wPrimitiveCount, wVStart +wPrimitiveCount + 1, wVStart ). The value of wPrimitiveCount is specified in the D3DHAL_DP2COMMAND structure.
The following figure shows a portion of a sample command buffer containing a D3DDP2OP_TRIANGLEFAN command and a D3DHAL_DP2TRIANGLEFAN structure. The driver should process six vertices from the vertex buffer, rendering a fan with four triangles defined by (v[3], v[4], v[2]), (v[4], v[5], v[2]), (v[5], v[6], v[2]), (v[6], v[7], v[2]).
D3DDP2OP_TRIANGLEFAN