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Blinn-Phong Specular Changes

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Based on the work done here:
http://www.garagegames.com/community/blogs/view/21032
This commit is contained in:
DavidWyand-GG 2013-10-29 15:10:23 -04:00
parent f5246bb809
commit 17113d3ba5
25 changed files with 167 additions and 26 deletions
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11
Engine/source/lighting/advanced/glsl/advancedLightingFeaturesGLSL.cpp
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@ -517,6 +517,12 @@ void DeferredPixelSpecularGLSL::processPix( Vector<ShaderComponent*> &component
specPow->constSortPos = cspPotentialPrimitive;
}
Var *specStrength = new Var;
specStrength->setType( "float" );
specStrength->setName( "specularStrength" );
specStrength->uniform = true;
specStrength->constSortPos = cspPotentialPrimitive;
Var *constSpecPow = new Var;
constSpecPow->setType( "float" );
constSpecPow->setName( "constantSpecularPower" );
@ -527,7 +533,7 @@ void DeferredPixelSpecularGLSL::processPix( Vector<ShaderComponent*> &component
AssertFatal( lightInfoSamp, "Something hosed the deferred features! Can't find lightInfoSample" );
// (a^m)^n = a^(m*n)
meta->addStatement( new GenOp( " @ = pow(d_specular, ceil(@ / @)) * d_NL_Att;\r\n", specDecl, specPow, constSpecPow ) );
meta->addStatement( new GenOp( " @ = pow(d_specular, ceil(@ / @)) * @;\r\n", specDecl, specPow, constSpecPow, specStrength ) );
LangElement *specMul = new GenOp( "@ * @", specCol, specular );
LangElement *final = specMul;
@ -539,8 +545,7 @@ void DeferredPixelSpecularGLSL::processPix( Vector<ShaderComponent*> &component
final = new GenOp( "@ * @.a", final, bumpSample );
}
// add to color
meta->addStatement( new GenOp( " @;\r\n", assignColor( final, Material::Add ) ) );
// add to color meta->addStatement( new GenOp( " @;\r\n", assignColor( final, Material::Add ) ) );
output = meta;
}