etqw-sdk/base/renderprogs/megatexture/ambient_glsl_vertex.inc
2008-05-29 00:00:00 +00:00

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attribute vec4 $positionAttrib;
attribute vec3 $normalAttrib;
attribute vec4 $texCoordAttrib;
uniform vec4 $megaMaskParams_0;
uniform vec4 $megaMaskParams_1;
uniform vec4 $megaMaskParams_2;
uniform vec4 $megaMaskParams_3;
uniform vec4 $megaMaskParams_4;
uniform vec4 $megaMaskParams_5;
uniform vec4 $megaDetailTextureParams;
varying vec4 texcoord3;
varying vec4 texcoord4;
varying vec3 texcoord6;
varying vec4 texcoord7;
void main()
{
$if r_useARBPositionInvariant
gl_Position = ftransform();
$else
gl_Position.x = dot( vec4(gl_ModelViewProjectionMatrix[0].x, gl_ModelViewProjectionMatrix[1].x, gl_ModelViewProjectionMatrix[2].x, gl_ModelViewProjectionMatrix[3].x ) , gl_Vertex );
gl_Position.y = dot( vec4(gl_ModelViewProjectionMatrix[0].y, gl_ModelViewProjectionMatrix[1].y, gl_ModelViewProjectionMatrix[2].y, gl_ModelViewProjectionMatrix[3].y ) , gl_Vertex );
gl_Position.z = dot( vec4(gl_ModelViewProjectionMatrix[0].z, gl_ModelViewProjectionMatrix[1].z, gl_ModelViewProjectionMatrix[2].z, gl_ModelViewProjectionMatrix[3].z ) , gl_Vertex );
gl_Position.w = dot( vec4(gl_ModelViewProjectionMatrix[0].w, gl_ModelViewProjectionMatrix[1].w, gl_ModelViewProjectionMatrix[2].w, gl_ModelViewProjectionMatrix[3].w ) , gl_Vertex );
$endif
// Pack for best efficiency (reduces number of fragment shader instructions)
// This could ideally be done before sending the constants (would eliminate the need for the 3 lines below)
vec4 inc0 = vec4($megaMaskParams_1.x, $megaMaskParams_2.x, $megaMaskParams_3.x, $megaMaskParams_4.x);
vec4 inc1 = vec4($megaMaskParams_1.y, $megaMaskParams_2.y, $megaMaskParams_3.y, $megaMaskParams_4.y);
vec4 mul = vec4($megaMaskParams_1.w, $megaMaskParams_2.w, $megaMaskParams_3.w, $megaMaskParams_4.w);
texcoord3 = 0.5 - (($texCoordAttrib.x * mul) + inc0);
texcoord4 = 0.5 - (($texCoordAttrib.y * mul) + inc1);
texcoord6 = $normalAttrib;
// images just have a scale
texcoord7 = $texCoordAttrib;
$if r_detailTexture
texcoord7.zw = ($texCoordAttrib.xy - 0.5) * $megaDetailTextureParams.x;
$endif
}