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source: code/branches/skybox/Media/materials/programs/varianceshadowcastervp.cg @ 2117

Last change on this file since 2117 was 390, checked in by landauf, 17 years ago

added materials

File size: 1.5 KB
Line 
1/////////////////////////////////////////////////////////////////////////////////
2//
3// shadowcastervp.cg
4//
5// Hamilton Chong
6// (c) 2006
7//
8// This is an example vertex shader for shadow caster objects. 
9//
10/////////////////////////////////////////////////////////////////////////////////
11
12
13// Define inputs from application.
14struct VertexIn
15{
16  float4 position : POSITION;       // vertex position in object space
17  float4 normal   : NORMAL;         // vertex normal in object space
18};
19
20// Define outputs from vertex shader.
21struct VertexOut
22{
23  float4 position   : POSITION;     // post projection position coordinates
24  float4 pos        : TEXCOORD0;    // ditto. Not all hardware allows access values bound to POSITION in fp.
25  float4 normal     : TEXCOORD1;    // normal in object space (to be interpolated)
26  float4 modelPos   : TEXCOORD2;    // position in object space (to be interpolated)
27};
28
29VertexOut main( VertexIn         In,                   // vertex to process
30                uniform float4x4 uModelViewProjection  // model-view-projection matrix
31              )
32{
33    VertexOut Out;   // output data
34   
35    // Transform vertex position into post projective (homogenous screen) space.
36    Out.position = mul(uModelViewProjection, In.position);
37    Out.pos      = mul(uModelViewProjection, In.position);
38
39    // copy over data to interpolate using perspective correct interpolation
40    Out.normal = float4(In.normal.x, In.normal.y, In.normal.z, 0.0);
41    Out.modelPos = In.position;
42
43    return Out;
44}
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