-
-
- The files containing the shaders can be found in the media directory
- of the SDK. However, they look like this:
-
-
- | D3D9.HLSL |
-
-
-
-
-// part of the Irrlicht Engine Shader example.
-// These simple Direct3D9 pixel and vertex shaders will be loaded by the shaders
-// example. Please note that these example shaders don't do anything really useful.
-// They only demonstrate that shaders can be used in Irrlicht.
-
-//-----------------------------------------------------------------------------
-// Global variables
-//-----------------------------------------------------------------------------
-float4x4 mWorldViewProj; // World * View * Projection transformation
-float4x4 mInvWorld; // Inverted world matrix
-float4x4 mTransWorld; // Transposed world matrix
-float3 mLightPos; // Light position
-float4 mLightColor; // Light color
-
-
-// Vertex shader output structure
-struct VS_OUTPUT
-{
- float4 Position : POSITION; // vertex position
- float4 Diffuse : COLOR0; // vertex diffuse color
- float2 TexCoord : TEXCOORD0; // tex coords
-};
-
-
-VS_OUTPUT vertexMain( in float4 vPosition : POSITION,
- in float3 vNormal : NORMAL,
- float2 texCoord : TEXCOORD0 )
-{
- VS_OUTPUT Output;
-
- // transform position to clip space
- Output.Position = mul(vPosition, mWorldViewProj);
-
- // transform normal
- float3 normal = mul(vNormal, mInvWorld);
-
- // renormalize normal
- normal = normalize(normal);
-
- // position in world coodinates
- float3 worldpos = mul(mTransWorld, vPosition);
-
- // calculate light vector, vtxpos - lightpos
- float3 lightVector = worldpos - mLightPos;
-
- // normalize light vector
- lightVector = normalize(lightVector);
-
- // calculate light color
- float3 tmp = dot(-lightVector, normal);
- tmp = lit(tmp.x, tmp.y, 1.0);
-
- tmp = mLightColor * tmp.y;
- Output.Diffuse = float4(tmp.x, tmp.y, tmp.z, 0);
- Output.TexCoord = texCoord;
-
- return Output;
-}
-
-
-
-// Pixel shader output structure
-struct PS_OUTPUT
-{
- float4 RGBColor : COLOR0; // Pixel color
-};
-
-
-sampler2D tex0;
-
-PS_OUTPUT pixelMain( float2 TexCoord : TEXCOORD0,
- float4 Position : POSITION,
- float4 Diffuse : COLOR0 )
-{
- PS_OUTPUT Output;
-
- float4 col = tex2D( tex0, TexCoord ); // sample color map
-
- // multiply with diffuse and do other senseless operations
- Output.RGBColor = Diffuse * col;
- Output.RGBColor *= 4.0;
-
- return Output;
-} |
-
-
-
-
-
- | D3D9.VSH |
-
-
-
-; part of the Irrlicht Engine Shader example.
-; This Direct3D9 vertex shader will be loaded by the engine.
-; Please note that these example shaders don't do anything really useful.
-; They only demonstrate that shaders can be used in Irrlicht.
-vs.1.1
-
-dcl_position v0; ; declare position
-dcl_normal v1; ; declare normal
-dcl_color v2; ; declare color
-dcl_texcoord0 v3; ; declare texture coordinate
-; transpose and transform position to clip space
-mul r0, v0.x, c4
-mad r0, v0.y, c5, r0
-mad r0, v0.z, c6, r0
-add oPos, c7, r0
-
-; transform normal
-dp3 r1.x, v1, c0
-dp3 r1.y, v1, c1
-dp3 r1.z, v1, c2
-
-; renormalize normal
-dp3 r1.w, r1, r1
-rsq r1.w, r1.w
-mul r1, r1, r1.w
-
-; calculate light vector
-m4x4 r6, v0, c10 ; vertex into world position
-add r2, c8, -r6 ; vtxpos - lightpos
-
-; normalize light vector
-dp3 r2.w, r2, r2
-rsq r2.w, r2.w
-mul r2, r2, r2.w
-
-; calculate light color
-dp3 r3, r1, r2 ; dp3 with negative light vector
-lit r5, r3 ; clamp to zero if r3 < 0, r5 has diffuce component in r5.y
-mul oD0, r5.y, c9 ; ouput diffuse color
-mov oT0, v3 ; store texture coordinates |
-
-
-
-
-
- | D3D9.PSH |
-
-
-
-; part of the Irrlicht Engine Shader example.
-; This simple Direct3D9 pixel shader will be loaded by the engine.
-; Please note that these example shaders don't do anything really useful.
-; They only demonstrate that shaders can be used in Irrlicht.
-ps.1.1
-
-tex t0 ; sample color map
-add r0, v0, v0 ; mulitply with color
-mul t0, t0, r0 ; mulitply with color
-add r0, t0, t0 ; make it brighter and store result
- |
-
-
-
-
-
- | D3D8.VSH |
-
-
-
-; part of the Irrlicht Engine Shader example.
-; This Direct3D9 vertex shader will be loaded by the engine.
-; Please note that these example shaders don't do anything really useful.
-; They only demonstrate that shaders can be used in Irrlicht.
-vs.1.1
-
-; transpose and transform position to clip space
-mul r0, v0.x, c4
-mad r0, v0.y, c5, r0
-mad r0, v0.z, c6, r0
-add oPos, c7, r0
-
-; transform normal
-dp3 r1.x, v1, c0
-dp3 r1.y, v1, c1
-dp3 r1.z, v1, c2
-
-; renormalize normal
-dp3 r1.w, r1, r1
-rsq r1.w, r1.w
-mul r1, r1, r1.w
-
-; calculate light vector
-m4x4 r6, v0, c10 ; vertex into world position
-add r2, c8, -r6 ; vtxpos - lightpos
-
-; normalize light vector
-dp3 r2.w, r2, r2
-rsq r2.w, r2.w
-mul r2, r2, r2.w
-
-; calculate light color
-dp3 r3, r1, r2 ; dp3 with negative light vector
-lit r5, r3 ; clamp to zero if r3 < 0, r5 has diffuce component in r5.y
-mul oD0, r5.y, c9 ; ouput diffuse color
-mov oT0, v3 ; store texture coordinates |
-
-
-
-
-
- | D3D8.PSH |
-
-
-
-; part of the Irrlicht Engine Shader example.
-; This simple Direct3D9 pixel shader will be loaded by the engine.
-; Please note that these example shaders don't do anything really useful.
-; They only demonstrate that shaders can be used in Irrlicht.
-ps.1.1
-
-tex t0 ; sample color map
-mul_x2 t0, t0, v0 ; mulitply with color
-add r0, t0, t0 ; make it brighter and store result |
-
-
-
-
-
- | OPENGL.VSH |
-
-
-
-!!ARBvp1.0
-# part of the Irrlicht Engine Shader example.
-# Please note that these example shaders don't do anything really useful.
-# They only demonstrate that shaders can be used in Irrlicht.
-#input
-ATTRIB InPos = vertex.position;
-ATTRIB InColor = vertex.color;
-ATTRIB InNormal = vertex.normal;
-ATTRIB InTexCoord = vertex.texcoord;
-
-#output
-OUTPUT OutPos = result.position;
-OUTPUT OutColor = result.color;
-OUTPUT OutTexCoord = result.texcoord;
-
-PARAM MVP[4] = { state.matrix.mvp }; # modelViewProjection matrix.
-TEMP Temp;
-TEMP TempColor;
-TEMP TempNormal;
-TEMP TempPos;
-
-#transform position to clip space
-DP4 Temp.x, MVP[0], InPos;
-DP4 Temp.y, MVP[1], InPos;
-DP4 Temp.z, MVP[2], InPos;
-DP4 Temp.w, MVP[3], InPos;
-
-#transform normal
-DP3 TempNormal.x, InNormal.x, program.local[0];
-DP3 TempNormal.y, InNormal.y, program.local[1];
-DP3 TempNormal.z, InNormal.z, program.local[2];
-
-#renormalize normal
-DP3 TempNormal.w, TempNormal, TempNormal;
-RSQ TempNormal.w, TempNormal.w;
-MUL TempNormal, TempNormal, TempNormal.w;
-
-# calculate light vector
-DP4 TempPos.x, InPos, program.local[10]; # vertex into world position
-DP4 TempPos.y, InPos, program.local[11];
-DP4 TempPos.z, InPos, program.local[12];
-DP4 TempPos.w, InPos, program.local[13];
-
-ADD TempPos, program.local[8], -TempPos; # vtxpos - lightpos
-
-# normalize light vector
-DP3 TempPos.w, TempPos, TempPos;
-RSQ TempPos.w, TempPos.w;
-MUL TempPos, TempPos, TempPos.w;
-
-# calculate light color
-DP3 TempColor, TempNormal, TempPos; # dp3 with negative light vector
-LIT OutColor, TempColor; # clamp to zero if r3 < 0, r5 has diffuce component in r5.y
-MUL OutColor, TempColor.y, program.local[9]; # ouput diffuse color
-MOV OutColor.w, 1.0; # we want alpha to be always 1
-MOV OutTexCoord, InTexCoord; # store texture coordinate
-MOV OutPos, Temp;
-
-END |
-
-
-
-
-
- | OPENGL.PSH |
-
-
-
-!!ARBfp1.0
-# part of the Irrlicht Engine Shader example.
-# Please note that these example shaders don't do anything really useful.
-# They only demonstrate that shaders can be used in Irrlicht.
-#Input
-ATTRIB inTexCoord = fragment.texcoord; # texture coordinates
-ATTRIB inColor = fragment.color.primary; # interpolated diffuse color
-
-#Output
-OUTPUT outColor = result.color;
-
-TEMP texelColor;
-TEMP tmp;
-TXP texelColor, inTexCoord, texture, 2D;
-
-ADD tmp, inColor, inColor; # mulitply with color
-MUL texelColor, texelColor, tmp; # mulitply with color
-ADD outColor, texelColor, texelColor; # make it brighter and store result
-
-END |
-
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- |
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