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Initial implementation of Custom Shader Features.

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Areloch 2017-10-05 17:04:51 -05:00
parent 5c1d764956
commit 0e2ef6a889
12 changed files with 595 additions and 9 deletions
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Engine/source/shaderGen/HLSL/customFeatureHLSL.cpp Normal file
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//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
#include "customFeatureHLSL.h"
#include "shaderGen/shaderFeature.h"
#include "shaderGen/shaderOp.h"
#include "shaderGen/featureMgr.h"
//#include "materials/materialFeatureTypes.h"
//#include "gfx/gfxDevice.h"
//#include "materials/processedMaterial.h"
//****************************************************************************
// Accu Texture
//****************************************************************************
void CustomFeatureHLSL::processVert(Vector<ShaderComponent*> &componentList,
const MaterialFeatureData &fd)
{
/*MultiLine *meta = new MultiLine;
getOutTexCoord( "texCoord",
"float2",
false,
meta,
componentList );
getOutObjToTangentSpace( componentList, meta, fd );
output = meta;*/
if (mOwner->isMethod("processVertHLSL"))
Con::executef(mOwner, "processVertHLSL");
}
void CustomFeatureHLSL::processPix(Vector<ShaderComponent*> &componentList,
const MaterialFeatureData &fd)
{
meta = new MultiLine;
/*MultiLine *meta = new MultiLine;
output = meta;
// OUT.col
Var *color = (Var*) LangElement::find( "col1" );
if (!color)
{
output = new GenOp(" //NULL COLOR!");
return;
}
// accu map
Var *accuMap = new Var;
accuMap->setType("SamplerState");
accuMap->setName( "accuMap" );
accuMap->uniform = true;
accuMap->sampler = true;
accuMap->constNum = Var::getTexUnitNum(); // used as texture unit num here
// accuColor var
Var *accuColor = new Var;
accuColor->setType( "float4" );
accuColor->setName( "accuColor" );
LangElement *colorAccuDecl = new DecOp( accuColor );
// plc (placement)
Var *accuPlc = new Var;
accuPlc->setType( "float4" );
accuPlc->setName( "plc" );
LangElement *plcAccu = new DecOp( accuPlc );
// accu constants
Var *accuScale = (Var*)LangElement::find( "accuScale" );
if ( !accuScale )
{
accuScale = new Var;
accuScale->setType( "float" );
accuScale->setName( "accuScale" );
accuScale->uniform = true;
accuScale->sampler = false;
accuScale->constSortPos = cspPotentialPrimitive;
}
Var *accuDirection = (Var*)LangElement::find( "accuDirection" );
if ( !accuDirection )
{
accuDirection = new Var;
accuDirection->setType( "float" );
accuDirection->setName( "accuDirection" );
accuDirection->uniform = true;
accuDirection->sampler = false;
accuDirection->constSortPos = cspPotentialPrimitive;
}
Var *accuStrength = (Var*)LangElement::find( "accuStrength" );
if ( !accuStrength )
{
accuStrength = new Var;
accuStrength->setType( "float" );
accuStrength->setName( "accuStrength" );
accuStrength->uniform = true;
accuStrength->sampler = false;
accuStrength->constSortPos = cspPotentialPrimitive;
}
Var *accuCoverage = (Var*)LangElement::find( "accuCoverage" );
if ( !accuCoverage )
{
accuCoverage = new Var;
accuCoverage->setType( "float" );
accuCoverage->setName( "accuCoverage" );
accuCoverage->uniform = true;
accuCoverage->sampler = false;
accuCoverage->constSortPos = cspPotentialPrimitive;
}
Var *accuSpecular = (Var*)LangElement::find( "accuSpecular" );
if ( !accuSpecular )
{
accuSpecular = new Var;
accuSpecular->setType( "float" );
accuSpecular->setName( "accuSpecular" );
accuSpecular->uniform = true;
accuSpecular->sampler = false;
accuSpecular->constSortPos = cspPotentialPrimitive;
}
Var *inTex = getInTexCoord( "texCoord", "float2", componentList );
Var *accuVec = getInTexCoord( "accuVec", "float3", componentList );
Var *bumpNorm = (Var *)LangElement::find( "bumpSample" );
if( bumpNorm == NULL )
{
bumpNorm = (Var *)LangElement::find( "bumpNormal" );
if (!bumpNorm)
return;
}
// get the accu pixel color
Var *accuMapTex = new Var;
accuMapTex->setType("Texture2D");
accuMapTex->setName("accuMapTex");
accuMapTex->uniform = true;
accuMapTex->texture = true;
accuMapTex->constNum = accuMap->constNum;
meta->addStatement(new GenOp(" @ = @.Sample(@, @ * @);\r\n", colorAccuDecl, accuMapTex, accuMap, inTex, accuScale));
// scale up normals
meta->addStatement( new GenOp( " @.xyz = @.xyz * 2.0 - 0.5;\r\n", bumpNorm, bumpNorm ) );
// assign direction
meta->addStatement( new GenOp( " @.z *= @*2.0;\r\n", accuVec, accuDirection ) );
// saturate based on strength
meta->addStatement( new GenOp( " @ = saturate( dot( @.xyz, @.xyz * pow(@, 5) ) );\r\n", plcAccu, bumpNorm, accuVec, accuStrength ) );
// add coverage
meta->addStatement( new GenOp( " @.a += (2 * pow(@/2, 5)) - 0.5;\r\n", accuPlc, accuCoverage ) );
// clamp to a sensible value
meta->addStatement( new GenOp( " @.a = clamp(@.a, 0, 1);\r\n", accuPlc, accuPlc ) );
// light
Var *lightColor = (Var*) LangElement::find( "d_lightcolor" );
if(lightColor != NULL)
meta->addStatement( new GenOp( " @ *= float4(@, 1.0);\r\n\r\n", accuColor, lightColor ) );
// lerp with current pixel - use the accu alpha as well
meta->addStatement( new GenOp( " @ = lerp( @, @, @.a * @.a);\r\n", color, color, accuColor, accuPlc, accuColor ) );
// the result should always be opaque
meta->addStatement( new GenOp( " @.a = 1.0;\r\n", color ) );*/
if (mOwner->isMethod("processPixelHLSL"))
Con::executef(mOwner, "processPixelHLSL");
output = meta;
}
void CustomFeatureHLSL::setTexData(Material::StageData &stageDat,
const MaterialFeatureData &fd,
RenderPassData &passData,
U32 &texIndex)
{
//GFXTextureObject *tex = stageDat.getTex( MFT_AccuMap );
//if ( tex )
//{
//passData.mSamplerNames[ texIndex ] = "AccuMap";
//passData.mTexType[ texIndex++ ] = Material::AccuMap;
//}
if (mOwner->isMethod("setTextureData"))
Con::executef(mOwner, "setTextureData");
}
void CustomFeatureHLSL::writeLine(String format, S32 argc, ConsoleValueRef *argv)
{
//do the var/arg fetching here
meta->addStatement(new GenOp(format + "\n"/*, colorAccuDecl, accuMapTex, accuMap, inTex, accuScale*/));
}