In the D3DFMT_L6V5U5 format, luminance is placed in the B channel. In this way, the D3DFMT_V16U16 format operates interchangeably with the D3DFMT_L6V5U5 format, which actually has an L channel. The reference rasterizer also sets defaults for the B channel, in addition to the A channel, (of RGBA) to 1.0f for the D3DFMT_V16U16 format. The luminance channel (L) to 1.0f, which produces a maximum light intensity. Feel free to write to us for any other assistance with Windows, we’ll be glad to assist you. In the System Tab under System Information, the version of DirectX will be displayed. The alpha channel (A) (for transparency) to 1.0f, which is opaque. To check the version of DirectX installed in the system, follow the steps below: Press Windows key + R, type dxdiag and press Enter. Similarly to the way that the reference rasterizer for DirectX 8.1 and later versions sets the default value for the unused B channel in the D3DFMT_G16R16 texture format to 1.0f (see refrast.cpp sample code), a DirectX 9.0 version driver should set the default values for the unused channels in the following DirectX 9.0 floating-point texture formats to 1.0f:Ī DirectX 9.0 driver should also set the following defaults:
Setting Defaults for Unused Channels of Texture Formatsĭrivers and their devices should set a default value for the unused channels in texture formats so that applications can rely on a known value being present in those channels that are not provided by input textures. It is recommended that DirectX 9.0 drivers set defaults for unused channels of texture formats.
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