By Sebastien St-Laurent
ISBN 0-9766132-1-2
Jan 2006 (896 pages)

Page 78

RangeFogEnable bool This render state must be either True or False and is used to activate range based fog. See D3DRS_RANGEFOGENABLE in the DirectX documentation for more details.

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.oat4 Position : POSITION; // vertex position

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You will also need to change the vertex shader to pass those values to the output structure. Since you will be dealing with a single light, it will be easier at this point to remove the lighting function and

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Diffuse lighting: Materials presenting a microscopic rough surface has the effect of re.ecting incoming light uniformly in all directions. This has the result of causing the perceived lighting to be the same from any viewing angle.

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asm This keyword is case insensitive and is used to allow the manual insertion of shader assembly instruction inside a shader. The syntax for this instruction is as follow: asm{ /* assembly instructions */ }