GFXShader* ShaderGen::getShader( const MaterialFeatureData &featureData, const GFXVertexFormat *vertexFormat, const Vector<GFXShaderMacro> *macros )
{
PROFILE_SCOPE( ShaderGen_GetShader );
const FeatureSet &features = featureData.codify();
// Build a description string from the features
// and vertex format combination ( and macros ).
String shaderDescription = vertexFormat->getDescription() + features.getDescription();
if ( macros && !macros->empty() )
{
String macroStr;
GFXShaderMacro::stringize( *macros, ¯oStr );
shaderDescription += macroStr;
}
// Generate a single 64bit hash from the description string.
//
// Don't get paranoid! This has 1 in 18446744073709551616
// chance for collision... it won't happen in this lifetime.
//
U64 hash = Torque::hash64( (const U8*)shaderDescription.c_str(), shaderDescription.length(), 0 );
hash = convertHostToLEndian(hash);
U32 high = (U32)( hash >> 32 );
U32 low = (U32)( hash & 0x00000000FFFFFFFF );
String cacheKey = String::ToString( "%x%x", high, low );
// return shader if exists
GFXShader *match = mProcShaders[cacheKey];
if ( match )
return match;
// if not, then create it
char vertFile[256];
char pixFile[256];
F32 pixVersion;
Vector<GFXShaderMacro> shaderMacros;
shaderMacros.push_back( GFXShaderMacro( "TORQUE_SHADERGEN" ) );
if ( macros )
shaderMacros.merge( *macros );
generateShader( featureData, vertFile, pixFile, &pixVersion, vertexFormat, cacheKey, shaderMacros );
GFXShader *shader = GFX->createShader();
shader->mInstancingFormat.copy( mInstancingFormat ); // TODO: Move to init() below!
if ( !shader->init( vertFile, pixFile, pixVersion, shaderMacros ) )
{
delete shader;
return NULL;
}
mProcShaders[cacheKey] = shader;
return shader;
}
bool ScatterSky::_initShader()
{
ShaderData *shaderData;
if ( !Sim::findObject( "ScatterSkyShaderData", shaderData ) )
{
Con::warnf( "ScatterSky::_initShader - failed to locate shader ScatterSkyShaderData!" );
return false;
}
Vector<GFXShaderMacro> macros;
if ( mColorizeAmt )
macros.push_back( GFXShaderMacro( "USE_COLORIZE" ) );
mShader = shaderData->getShader( macros );
if ( !mShader )
return false;
if ( mStateBlock.isNull() )
{
GFXStateBlockData *data = NULL;
if ( !Sim::findObject( "ScatterSkySBData", data ) )
Con::warnf( "ScatterSky::_initShader - failed to locate ScatterSkySBData!" );
else
mStateBlock = GFX->createStateBlock( data->getState() );
}
if ( !mStateBlock )
return false;
mShaderConsts = mShader->allocConstBuffer();
mModelViewProjSC = mShader->getShaderConstHandle( "$modelView" );
// Camera height, cam height squared, scale and scale over depth.
mMiscSC = mShader->getShaderConstHandle( "$misc" );
// Inner and out radius, and inner and outer radius squared.
mSphereRadiiSC = mShader->getShaderConstHandle( "$sphereRadii" );
// Rayleigh sun brightness, mie sun brightness and 4 * PI * coefficients.
mScatteringCoefficientsSC = mShader->getShaderConstHandle( "$scatteringCoeffs" );
mCamPosSC = mShader->getShaderConstHandle( "$camPos" );
mLightDirSC = mShader->getShaderConstHandle( "$lightDir" );
mSunDirSC = mShader->getShaderConstHandle( "$sunDir" );
mNightColorSC = mShader->getShaderConstHandle( "$nightColor" );
mInverseWavelengthSC = mShader->getShaderConstHandle( "$invWaveLength" );
mNightInterpolantAndExposureSC = mShader->getShaderConstHandle( "$nightInterpAndExposure" );
mUseCubemapSC = mShader->getShaderConstHandle( "$useCubemap" );
mColorizeSC = mShader->getShaderConstHandle( "$colorize" );
return true;
}
AdvancedLightBinManager::LightMaterialInfo* AdvancedLightBinManager::_getLightMaterial( LightInfo::Type lightType,
ShadowType shadowType,
bool useCookieTex )
{
PROFILE_SCOPE( AdvancedLightBinManager_GetLightMaterial );
// Build the key.
const LightMatKey key( lightType, shadowType, useCookieTex );
// See if we've already built this one.
LightMatTable::Iterator iter = mLightMaterials.find( key );
if ( iter != mLightMaterials.end() )
return iter->value;
// If we got here we need to build a material for
// this light+shadow combination.
LightMaterialInfo *info = NULL;
// First get the light material name and make sure
// this light has a material in the first place.
const String &lightMatName = smLightMatNames[ lightType ];
if ( lightMatName.isNotEmpty() )
{
Vector<GFXShaderMacro> shadowMacros;
// Setup the shadow type macros for this material.
if ( shadowType == ShadowType_None )
shadowMacros.push_back( GFXShaderMacro( "NO_SHADOW" ) );
else
{
shadowMacros.push_back( GFXShaderMacro( smShadowTypeMacro[ shadowType ] ) );
// Do we need to do shadow filtering?
if ( smShadowFilterMode != ShadowFilterMode_None )
{
shadowMacros.push_back( GFXShaderMacro( "SOFTSHADOW" ) );
const F32 SM = GFX->getPixelShaderVersion();
if ( SM >= 3.0f && smShadowFilterMode == ShadowFilterMode_SoftShadowHighQuality )
shadowMacros.push_back( GFXShaderMacro( "SOFTSHADOW_HIGH_QUALITY" ) );
}
}
if ( useCookieTex )
shadowMacros.push_back( GFXShaderMacro( "USE_COOKIE_TEX" ) );
// Its safe to add the PSSM debug macro to all the materials.
if ( smPSSMDebugRender )
shadowMacros.push_back( GFXShaderMacro( "PSSM_DEBUG_RENDER" ) );
// If its a vector light see if we can enable SSAO.
if ( lightType == LightInfo::Vector && smUseSSAOMask )
shadowMacros.push_back( GFXShaderMacro( "USE_SSAO_MASK" ) );
// Now create the material info object.
info = new LightMaterialInfo( lightMatName, smLightMatVertex[ lightType ], shadowMacros );
}
// Push this into the map and return it.
mLightMaterials.insertUnique( key, info );
return info;
}