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Features
[D3D9 Features]

In this section we describe the general features of D3D9 RenderWare Graphics. It is difficult to provide specific features since these are very much dependent on the video card drivers in the host computer.

• An internal device cache is used to monitor and optimize efficiency in RenderWare Graphics. See Device Cache for more details.

• D3D9 dynamic vertex buffers created via the RenderWare Graphics API are controller by a vertex buffer manager. This reduces memory and processing overheads by reusing existing structures where possible.

• Applications may also use a pool of internally managed vertex buffers via a different management system.

• Support for programmable vertex and pixel shaders through RwD3D9SetVertexShader and RwD3D9SetPixelShader. Remember that obtaining the D3D9 device from RwD3D9GetCurrentD3DDevice, in order to create vertex and pixel shaders with the D3D9 API functions, will invalidate the RenderWare Graphics device cache. Use RwD3D9CreatePixelShader and RwD3D9CreateVertexShader instead.

• The RpAnisot plugin allows you to make use of the anisotropic texture filtering.

• The RtVCAT toolkit exists to generate vertex cache optimized tristrips for significant rendering performace gains when the video card supports hardware TnL.

• DDS files can be loaded using RwD3D9DDSTextureRead.

• All the RenderWare stencil buffer renderstates are supported.

• Multisampling is supported with the function RwD3D9EngineSetMultiSamplingLevels.

• RpWorldInstance is supported.

• Up to eight texture stages are supported.

• Non power of 2 texture resolutions are supported if mipmapping is not used for the required texture. The texture addressing mode is restricted to rwTEXTUREADDRESSCLAMP. This feature is only available on supporting video cards.

• Rendering simultaneously to more than one render target using pixel shaders version 2.0, is supported with the function RwD3D9SetRenderTarget.

• RWD3D9 is using different versions of Vertex and Pixel shaders depending on the video card capabilities.

• RpNormMap plugin is supported if the video card supports Vertex and Pixel Shaders.

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