Justin Marshall
82 lines
2.6 KiB
Plaintext
82 lines
2.6 KiB
Plaintext
{
|
|
parms {
|
|
stageSort sortPerturber
|
|
}
|
|
state {
|
|
depthMask
|
|
depthfunc GL_ALWAYS
|
|
blend GL_ONE_MINUS_DST_ALPHA GL_DST_ALPHA
|
|
}
|
|
hlsl_vp {
|
|
result.position.x = dot4( vertex.position, $mvpMatrixX );
|
|
result.position.y = dot4( vertex.position, $mvpMatrixY );
|
|
result.position.z = dot4( vertex.position, $mvpMatrixZ );
|
|
result.position.w = dot4( vertex.position, $mvpMatrixW );
|
|
|
|
float4 worldPosition;
|
|
worldPosition.x = dot4( vertex.position, $modelMatrixX );
|
|
worldPosition.y = dot4( vertex.position, $modelMatrixY );
|
|
worldPosition.z = dot4( vertex.position, $modelMatrixZ );
|
|
worldPosition.w = dot4( vertex.position, $modelMatrixW );
|
|
|
|
float eyeDistance = abs( dot4( worldPosition, $viewMatrixZ ) );
|
|
float nearFade = saturate( ( eyeDistance - $distortionFade.x ) / ( $distortionFade.y - $distortionFade.x ) );
|
|
float farFade = saturate( ( eyeDistance - $distortionFade.z ) / ( $distortionFade.w - $distortionFade.z ) );
|
|
float fade = nearFade * ( 1.0 - farFade );
|
|
|
|
// Convert back from 16 bit vertex elements.
|
|
float4 tc = vertex.texcoord0.xyxy * $particleStScaleBias.x + $particleStScaleBias.y;
|
|
|
|
result.texcoord0.xy = tc.xy;
|
|
result.texcoord0.z = fade;
|
|
result.texcoord0.w = 0.0;
|
|
|
|
result.texcoord1.x = dot4( tc, $sMatrix );
|
|
result.texcoord1.y = dot4( tc, $tMatrix );
|
|
#ifdef XBOX
|
|
result.texcoord1.zw = result.position.zw;
|
|
#else
|
|
result.texcoord1.zw = _float2( 0.0 );
|
|
#endif
|
|
|
|
//result.texcoord2 = vertex.normal;
|
|
|
|
result.color = swizzleColor( vertex.color );
|
|
//result.color.w *= fade;
|
|
}
|
|
hlsl_fp {
|
|
// Load the mask map
|
|
float4 texel = tex2D( $transMap, fragment.texcoord0.xy );
|
|
|
|
// Fade mask and blur depending on vertex alpha and distance
|
|
float blur = texel.z * fragment.color.w * fragment.texcoord0.z;
|
|
float mask = texel.w * fragment.color.w * fragment.texcoord0.z;
|
|
|
|
// Kill the pixel if the blur or distortion is very small
|
|
clip( ( blur + mask ) - 0.01 );
|
|
|
|
#ifdef XBOX
|
|
float interpolatedZOverW = fragment.texcoord1.z / fragment.texcoord1.w;
|
|
#else
|
|
float interpolatedZOverW = fragment.position.z;
|
|
#endif
|
|
|
|
// sample the depth texture
|
|
float2 tc = screenPosToTexcoord( fragment.position.xy, $positionToViewTexture );
|
|
const float dstDepth = tex2Ddepth( $viewDepthMap, tc );
|
|
const float srcDepth = interpolatedZOverW;
|
|
|
|
// z-rejection
|
|
const float zReject = dstDepth - srcDepth;
|
|
//clip( zReject - $particleDepthClipRange.x );
|
|
clip( zReject );
|
|
|
|
// scale/bias the distortion map
|
|
float2 distortion = 2.0 * texel.xy - 1.0;
|
|
|
|
// Scale distortion and blur
|
|
distortion *= ( $distortionScale.xy * mask );
|
|
|
|
result.color = ComputeDistortion( distortion, blur );
|
|
}
|
|
} |