IDirect3DDevice9::SetTexture 方法-优快云博客

本文详细介绍了SetTexture API的使用方法，包括如何分配纹理到设备层、API的参数说明及返回值，同时给出了注意事项，例如不支持的纹理类型等。

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原文:Assigns a texture to a stage for a device.

译文:分配一个纹理到一个设备层

语法(Syntax)

HRESULTSetTexture(

DWORDStage,
IDirect3DBaseTexture9*pTexture
);

参数(Parameters)

Stage
[in]Stage identifier to which the texture is set. Stage identifiers are zero-based. The maximum number of stages supported is determined from two caps: D3DCAPS.MaxSimultaneousTextureStages and D3DCAPS9.MaxTextureBlendingStages.
Displacement Mapping uses a special stage index, called D3DDDMAPSAMPLER.

Vertex Textures use a special stage index called D3DVERTEXTEXTURESAMPLER.

[in(用户给出参数的值)]标志要设置纹理的设备层,从0开始.支持的最大设备层数由两个标志决定:

D3DCAPS.MaxSimultaneousTextureStages和 D3DCAPS9.MaxTextureBlendingStages.

位移映射使用特殊的层索引,称为 D3DDDMAPSAMPLER

顶点文理使用特殊的层索引,称为 D3DVERTEXTEXTURESAMPLER

pTexture
[in]Pointer to an IDirect3DBaseTexture9 interface, representing the texture being set.

IDirect3DBaseTexture9的指针,代表要设置的纹理

返回值(Return Value)

If the method succeeds, the return value is D3D_OK.

If the method fails, the return value can be D3DERR_INVALIDCALL.

如果该方法成功,返回值是D3D_OK

如果该方法失败,返回值可能是D3DERR_INVALICALL

备注(Remarks)

IDirect3DDevice9::SetTexture is not allowed if the texture is created with a pool type of D3DPOOL_SCRATCH. IDirect3DDevice9::SetTexture is not allowed with a pool type of D3DPOOL_SYSTEMMEM texture unless DevCaps is set with D3DDEVCAPS_TEXTURESYSTEMMEMORY.

IDirect3DDevice9::SetTexture 不允许(调用)若文理是以D3DPOOL_SCRATCH类型池创建的话.

同样D3DPOOL_SYSTEMMEM池类型创建的纹理也不允许,除非DevCaps设置为D3DDEVCAPS_TEXTURESYSTEMMEMORY.