//-----------------------------------------------------------------------------------
	void PbsMaterial::createTexturUnits(Pass* pass)
	{
		GpuProgramParametersSharedPtr fragmentParams = pass->getFragmentProgramParameters();
		fragmentParams->setIgnoreMissingParams(true);

		// Create the texture unit states
		for (int i = 0; i < ST_COUNT; i++)
		{
			SamplerContainer& s = _samplers[i];
			if (s.status == SS_ACTIVE || s.status == SS_ADDED || s.status == SS_UPDATED)
			{
				s.textureUnitState = pass->createTextureUnitState();
				s.textureUnitState->setName("in_map_" + s.name);
				s.status = SS_UPDATED;
			}
			else
			{
				s.status = SS_NOT_ACTIVE;
			}
		}

		// set the sampler name for the texture unit state
		int size = pass->getNumTextureUnitStates();
		for (int i = 0; i < size; i++)
		{
			TextureUnitState* tus = pass->getTextureUnitState(i);
			fragmentParams->setNamedConstant(tus->getName(), i);
		}

		_hasSamplerChanged = true;
	}
	//---------------------------------------------------------------------
	void TerrainMaterialGeneratorC::SM2Profile::ShaderHelper::updateVpParams(
		const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const GpuProgramParametersSharedPtr& params)
	{
		params->setIgnoreMissingParams(true);
		uint maxLayers = prof->getMaxLayers(terrain);
		uint numLayers = std::min(maxLayers, static_cast<uint>(terrain->getLayerCount()));
		uint numUVMul = numLayers / 4;
		if (numLayers % 4)
			++numUVMul;
		for (uint i = 0; i < numUVMul; ++i)
		{
			Vector4 uvMul(
				terrain->getLayerUVMultiplier(i * 4), 
				terrain->getLayerUVMultiplier(i * 4 + 1), 
				terrain->getLayerUVMultiplier(i * 4 + 2), 
				terrain->getLayerUVMultiplier(i * 4 + 3) 
				);
			params->setNamedConstant("uvMul_" + StringConverter::toString(i), uvMul);
		}
 
		if (terrain->_getUseVertexCompression() && tt != RENDER_COMPOSITE_MAP)
		{
			Real baseUVScale = 1.0f / (terrain->getSize() - 1);
			params->setNamedConstant("baseUVScale", baseUVScale);
		}
 
	}
Exemple #3
0
void MaterialGenerator::vertexProgramParams(HighLevelGpuProgramPtr program)
{
	GpuProgramParametersSharedPtr params = program->getDefaultParameters();
	
	//#ifndef _DEBUG
	params->setIgnoreMissingParams(true);
	//#endif
		
	if (vpNeedWMat())
		params->setNamedAutoConstant("wMat", GpuProgramParameters::ACT_WORLD_MATRIX);
	params->setNamedAutoConstant("wvpMat", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
	if (vpNeedWvMat())
		params->setNamedAutoConstant("wvMat", GpuProgramParameters::ACT_WORLDVIEW_MATRIX);
	if (fpNeedEyeVector() || mShader->wind == 1)
		params->setNamedAutoConstant("eyePosition", GpuProgramParameters::ACT_CAMERA_POSITION);
	
	params->setNamedAutoConstant("fogParams", GpuProgramParameters::ACT_FOG_PARAMS);
			
	if (mShader->wind == 2)
		params->setNamedConstant("enableWind", Real(1.0));
	
	if(MRTSupported())
	{
		params->setNamedAutoConstant("far", GpuProgramParameters::ACT_FAR_CLIP_DISTANCE);
	}	
	individualVertexProgramParams(params);
}
		/// Populate the passed parameters with name->index map, must be overridden
		void populateParameterNames(GpuProgramParametersSharedPtr params)
		{
			// Skip the normal implementation
			// Ensure we don't complain about missing parameter names
			params->setIgnoreMissingParams(true);

		}
	//---------------------------------------------------------------------
	void TerrainMaterialGeneratorC::SM2Profile::ShaderHelper::defaultFpParams(
		const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const HighLevelGpuProgramPtr& prog)
	{
		GpuProgramParametersSharedPtr params = prog->getDefaultParameters();
		params->setIgnoreMissingParams(true);
		params->setNamedAutoConstant("fogColour", GpuProgramParameters::ACT_FOG_COLOUR);
		params->setNamedAutoConstant("cFarDistance", Ogre::GpuProgramParameters::ACT_FAR_CLIP_DISTANCE);
		params->setNamedAutoConstant("viewMatrix", GpuProgramParameters::ACT_WORLDVIEW_MATRIX); // tout sauf Z : VIEW_MATRIX
	}
	//---------------------------------------------------------------------
	void TerrainMaterialGeneratorC::SM2Profile::ShaderHelper::updateFpParams(
		const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const GpuProgramParametersSharedPtr& params)
	{
		params->setIgnoreMissingParams(true);
		// TODO - parameterise this?
		/*Vector4 scaleBiasSpecular(0.03, -0.04, 32, 1);
		params->setNamedConstant("scaleBiasSpecular", scaleBiasSpecular);*/
 
	}
Exemple #7
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HighLevelGpuProgramPtr ParticleMaterialGenerator::createSoftParticleVertexProgram()
{
	HighLevelGpuProgramManager& mgr = HighLevelGpuProgramManager::getSingleton();
	std::string progName = mDef->getName() + "_ambient_VP";

	HighLevelGpuProgramPtr ret = mgr.getByName(progName);
	if (!ret.isNull())
		mgr.remove(progName);

	ret = mgr.createProgram(progName, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, 
		"cg", GPT_VERTEX_PROGRAM);

	ret->setParameter("profiles", "vs_4_0 vs_1_1 arbvp1");
	ret->setParameter("entry_point", "main_vp");

	StringUtil::StrStreamType sourceStr;
	
	sourceStr <<
	"void main_vp( 	float4 position 					: POSITION, \n"
	"	float4 color 						: COLOR,  \n"
	"	float2 texCoord 					: TEXCOORD0,  \n"
	"	out float4 oPosition			 	: POSITION,  \n"
	"	out float4 objectPos				: COLOR,  \n"
	"	out float4 oTexCoord				: TEXCOORD0,  \n"
	"	out float4 oVertexColour				: TEXCOORD1,  \n"
	"	out float4 oScreenPosition				: TEXCOORD2,  \n"
	"	out float4 oWorldPosition				: TEXCOORD3,  \n"
	"	uniform float enableFog,  \n"
	"	uniform float4 fogParams,  \n"
	"	uniform float4x4 wvpMat,  \n"
	"	uniform float4x4 wMat  \n"
	")  \n"
	"{  \n"
	"	oVertexColour = color;  \n"
	"	oPosition = mul(wvpMat, position);  \n"
	"	oWorldPosition = mul(wMat, position);  \n"
	"	oScreenPosition = oPosition; \n"
	"	oTexCoord = float4(texCoord.x, texCoord.y, 1, 1);  \n"
	"	objectPos = position;  \n"
	"	objectPos.w = enableFog * saturate(fogParams.x * (oPosition.z - fogParams.y) * fogParams.w);  \n"
	"} \n";
	
	ret->setSource(sourceStr.str());
	ret->load();
	
	// params
	GpuProgramParametersSharedPtr params = ret->getDefaultParameters();
	params->setIgnoreMissingParams(true);
	params->setNamedAutoConstant("wvpMat", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
	params->setNamedAutoConstant("wMat", GpuProgramParameters::ACT_WORLD_MATRIX);
	params->setNamedAutoConstant("fogParams", GpuProgramParameters::ACT_FOG_PARAMS);
	params->setNamedConstant("enableFog", mDef->mProps->fog ? Real(1.0) : Real(0.0));
	
	return ret;
}
Exemple #8
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void WaterMaterialGenerator::vertexProgramParams(Ogre::HighLevelGpuProgramPtr program)
{
	GpuProgramParametersSharedPtr params = program->getDefaultParameters();
	
	params->setIgnoreMissingParams(true);

	params->setNamedAutoConstant("wMat", GpuProgramParameters::ACT_WORLD_MATRIX);
	params->setNamedAutoConstant("wvpMat", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
	params->setNamedAutoConstant("fogParams", GpuProgramParameters::ACT_FOG_PARAMS);
	
	individualVertexProgramParams(params);
}
void MaterialFactory::setWind(bool wind)
{
	for (std::vector<std::string>::iterator it=windMtrs.begin();
		it != windMtrs.end(); ++it)
	{
		MaterialPtr mat = MaterialManager::getSingleton().getByName( (*it) );
		if (mat->getTechnique(0)->getPass(0)->hasVertexProgram())
		{
			GpuProgramParametersSharedPtr vparams = mat->getTechnique(0)->getPass(0)->getVertexProgramParameters();
			vparams->setIgnoreMissingParams(true);
			vparams->setNamedConstant("enableWind", wind ? Real(1.0) : Real(0.0));
		}
	}
}
Exemple #10
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void MaterialGenerator::individualVertexProgramParams(GpuProgramParametersSharedPtr params)
{
	//#ifndef _DEBUG
	params->setIgnoreMissingParams(true);
	//#endif
	
	if (needShadows())
	for (int i=0; i<mParent->getNumShadowTex(); ++i)
	{
		params->setNamedAutoConstant("texWorldViewProjMatrix"+toStr(i), GpuProgramParameters::ACT_TEXTURE_WORLDVIEWPROJ_MATRIX, i);
	}
	
	params->setNamedConstant("enableFog", mDef->mProps->fog ? Real(1.0) : Real(0.0));
}
	//-----------------------------------------------------------------------
	GpuProgramParametersSharedPtr UnifiedHighLevelGpuProgram::createParameters(void)
	{
		if (isSupported())
		{
			return _getDelegate()->createParameters();
		}
		else
		{
			// return a default set
			GpuProgramParametersSharedPtr params = GpuProgramManager::getSingleton().createParameters();
			// avoid any errors on parameter names that don't exist
			params->setIgnoreMissingParams(true);
			return params;
		}
	}
Exemple #12
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void WaterMaterialGenerator::fragmentProgramParams(Ogre::HighLevelGpuProgramPtr program)
{
	GpuProgramParametersSharedPtr params = program->getDefaultParameters();
	
	params->setIgnoreMissingParams(true);

	params->setNamedAutoConstant("iTWMat", GpuProgramParameters::ACT_INVERSE_TRANSPOSE_WORLD_MATRIX);
	params->setNamedAutoConstant("fogColor", GpuProgramParameters::ACT_FOG_COLOUR);
	params->setNamedAutoConstant("lightSpec0", GpuProgramParameters::ACT_LIGHT_SPECULAR_COLOUR, 0);
	params->setNamedAutoConstant("lightPos0", GpuProgramParameters::ACT_LIGHT_POSITION, 0);
	params->setNamedAutoConstant("camPos", GpuProgramParameters::ACT_CAMERA_POSITION);
	params->setNamedAutoConstant("time", GpuProgramParameters::ACT_TIME);
	params->setNamedAutoConstant("ambient", GpuProgramParameters::ACT_AMBIENT_LIGHT_COLOUR);
	params->setNamedAutoConstant("lightDiff", GpuProgramParameters::ACT_LIGHT_DIFFUSE_COLOUR, 0);
	params->setNamedAutoConstant("inverseProjection", GpuProgramParameters::ACT_RENDER_TARGET_FLIPPING);
	params->setNamedConstantFromTime("time", 1);
	individualFragmentProgramParams(params);
}
//-----------------------------------------------------------------------------
void GLSLESProgramProcessor::bindTextureSamplers(Program* pCpuProgram, GpuProgramPtr pGpuProgram)
{
	GpuProgramParametersSharedPtr pGpuParams = pGpuProgram->getDefaultParameters();
	const UniformParameterList& progParams = pCpuProgram->getParameters();
	UniformParameterConstIterator itParams;

	// Bind the samplers.
	for (itParams = progParams.begin(); itParams != progParams.end(); ++itParams)
	{
		const UniformParameterPtr pCurParam = *itParams;
		
		if (pCurParam->isSampler())
		{
            // The optimizer may remove some unnecessary parameters, so we should ignore them
            pGpuParams->setIgnoreMissingParams(true);

            pGpuParams->setNamedConstant(pCurParam->getName(), pCurParam->getIndex());
		}
	}
}
//-------------------------------------------------------------------------------------------------------
//  utility
//-------------------------------------------------------------------------------------------------------
void CarModel::UpdateLightMap()
{
	MaterialPtr mtr;
	for (int i=0; i < NumMaterials; ++i)
	{
		mtr = MaterialManager::getSingleton().getByName(sMtr[i]);
		if (!mtr.isNull())
		{	Material::TechniqueIterator techIt = mtr->getTechniqueIterator();
			while (techIt.hasMoreElements())
			{	Technique* tech = techIt.getNext();
				Technique::PassIterator passIt = tech->getPassIterator();
				while (passIt.hasMoreElements())
				{	Pass* pass = passIt.getNext();
					if (pass->hasFragmentProgram())
					{
						GpuProgramParametersSharedPtr params = pass->getFragmentProgramParameters();
						params->setIgnoreMissingParams(true);  // don't throw exception if material doesnt use lightmap
						params->setNamedConstant("enableTerrainLightMap", bLightMapEnabled ? 1.f : 0.f);
	}	}	}	}	}
}
	//---------------------------------------------------------------------
	void TerrainMaterialGeneratorA::SM2Profile::ShaderHelper::defaultVpParams(
		const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const HighLevelGpuProgramPtr& prog)
	{
		GpuProgramParametersSharedPtr params = prog->getDefaultParameters();
		params->setIgnoreMissingParams(true);
		params->setNamedAutoConstant("worldMatrix", GpuProgramParameters::ACT_WORLD_MATRIX);
		params->setNamedAutoConstant("viewProjMatrix", GpuProgramParameters::ACT_VIEWPROJ_MATRIX);
		params->setNamedAutoConstant("lodMorph", GpuProgramParameters::ACT_CUSTOM, 
			Terrain::LOD_MORPH_CUSTOM_PARAM);
		params->setNamedAutoConstant("fogParams", GpuProgramParameters::ACT_FOG_PARAMS);

		if (prof->isShadowingEnabled(tt, terrain))
		{
			uint numTextures = 1;
			if (prof->getReceiveDynamicShadowsPSSM())
			{
				numTextures = (uint)prof->getReceiveDynamicShadowsPSSM()->getSplitCount();
			}
			for (uint i = 0; i < numTextures; ++i)
			{
				params->setNamedAutoConstant("texViewProjMatrix" + StringConverter::toString(i), 
					GpuProgramParameters::ACT_TEXTURE_VIEWPROJ_MATRIX, i);
				if (prof->getReceiveDynamicShadowsDepth())
				{
					params->setNamedAutoConstant("depthRange" + StringConverter::toString(i), 
						GpuProgramParameters::ACT_SHADOW_SCENE_DEPTH_RANGE, i);
				}
			}
		}

		if (terrain->_getUseVertexCompression() && tt != RENDER_COMPOSITE_MAP)
		{
			Matrix4 posIndexToObjectSpace;
			terrain->getPointTransform(&posIndexToObjectSpace);
			params->setNamedConstant("posIndexToObjectSpace", posIndexToObjectSpace);
		}

		
		
	}
	//---------------------------------------------------------------------
	void TerrainMaterialGeneratorC::SM2Profile::ShaderHelper::defaultVpParams(
		const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const HighLevelGpuProgramPtr& prog)
	{
		GpuProgramParametersSharedPtr params = prog->getDefaultParameters();
		params->setIgnoreMissingParams(true);
		params->setNamedAutoConstant("worldMatrix", GpuProgramParameters::ACT_WORLD_MATRIX);
		params->setNamedAutoConstant("viewMatrix", GpuProgramParameters::ACT_WORLDVIEW_MATRIX);
		params->setNamedAutoConstant("viewProjMatrix", GpuProgramParameters::ACT_VIEWPROJ_MATRIX);
		params->setNamedAutoConstant("lodMorph", GpuProgramParameters::ACT_CUSTOM, 
			Terrain::LOD_MORPH_CUSTOM_PARAM);
		params->setNamedAutoConstant("fogParams", GpuProgramParameters::ACT_FOG_PARAMS);
 
		if (terrain->_getUseVertexCompression() && tt != RENDER_COMPOSITE_MAP)
		{
			Matrix4 posIndexToObjectSpace;
			terrain->getPointTransform(&posIndexToObjectSpace);
			params->setNamedConstant("posIndexToObjectSpace", posIndexToObjectSpace);
		}
 
 
 
	}
Exemple #17
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void BatchPage::_updateShaders()
{
	if (!shadersSupported)
		return;

	uint32 i = 0;
	BatchedGeometry::SubBatchIterator it = batch->getSubBatchIterator();
	while (it.hasMoreElements()){
		BatchedGeometry::SubBatch *subBatch = it.getNext();
		MaterialPtr mat = unfadedMaterials[i++];

		//Check if lighting should be enabled
		bool lightingEnabled = false;
		for (unsigned short t = 0; t < mat->getNumTechniques(); ++t){
			Technique *tech = mat->getTechnique(t);
			for (unsigned short p = 0; p < tech->getNumPasses(); ++p){
				Pass *pass = tech->getPass(p);
				if (pass->getLightingEnabled()) {
					lightingEnabled = true;
					break;
				}
			}
			if (lightingEnabled)
				break;
		}

		//Compile the CG shader script based on various material / fade options
		StringUtil::StrStreamType tmpName;
		tmpName << "BatchPage_";
		if (fadeEnabled)
			tmpName << "fade_";
		if (lightingEnabled)
			tmpName << "lit_";
		if (subBatch->vertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE) != NULL)
			tmpName << "clr_";

		for (unsigned short i = 0; i < subBatch->vertexData->vertexDeclaration->getElementCount(); ++i)
		{
			const VertexElement *el = subBatch->vertexData->vertexDeclaration->getElement(i);
			if (el->getSemantic() == VES_TEXTURE_COORDINATES) {
				String uvType = "";
				switch (el->getType()) {
						case VET_FLOAT1: uvType = "1"; break;
						case VET_FLOAT2: uvType = "2"; break;
						case VET_FLOAT3: uvType = "3"; break;
						case VET_FLOAT4: uvType = "4"; break;
				}
				tmpName << uvType << '_';
			}
		}

		tmpName << "vp";

		const String vertexProgName = tmpName.str();

		String shaderLanguage = ShaderHelper::getShaderLanguage();

		//If the shader hasn't been created yet, create it
		if (HighLevelGpuProgramManager::getSingleton().getByName(vertexProgName).isNull())
		{
			Pass *pass = mat->getTechnique(0)->getPass(0);
			String vertexProgSource;

			if(!shaderLanguage.compare("hlsl") || !shaderLanguage.compare("cg"))
			{

				vertexProgSource =
					"void main( \n"
					"	float4 iPosition : POSITION, \n"
					"	float3 normal    : NORMAL,	\n"
					"	out float4 oPosition : POSITION, \n";

				if (subBatch->vertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE) != NULL) vertexProgSource +=
					"	float4 iColor    : COLOR, \n";

				unsigned texNum = 0;
				for (unsigned short i = 0; i < subBatch->vertexData->vertexDeclaration->getElementCount(); ++i) {
					const VertexElement *el = subBatch->vertexData->vertexDeclaration->getElement(i);
					if (el->getSemantic() == VES_TEXTURE_COORDINATES) {
						String uvType = "";
						switch (el->getType()) {
							case VET_FLOAT1: uvType = "float"; break;
							case VET_FLOAT2: uvType = "float2"; break;
							case VET_FLOAT3: uvType = "float3"; break;
							case VET_FLOAT4: uvType = "float4"; break;
						}

						vertexProgSource +=
						"	" + uvType + " iUV" + StringConverter::toString(texNum) + "			: TEXCOORD" + StringConverter::toString(texNum) + ",	\n"
						"	out " + uvType + " oUV" + StringConverter::toString(texNum) + "		: TEXCOORD" + StringConverter::toString(texNum) + ",	\n";

						++texNum;
					}
				}

				vertexProgSource +=
					"	out float oFog : FOG,	\n"
				"	out float4 oColor : COLOR, \n"
			    "	uniform float4 iFogParams,	\n";

				if (lightingEnabled) vertexProgSource +=
					"	uniform float4 objSpaceLight,	\n"
					"	uniform float4 lightDiffuse,	\n"
					"	uniform float4 lightAmbient,	\n";

				if (fadeEnabled) vertexProgSource +=
					"	uniform float3 camPos, \n";

				vertexProgSource +=
					"	uniform float4x4 worldViewProj,	\n"
					"	uniform float fadeGap, \n"
					"   uniform float invisibleDist )\n"
					"{	\n";

				if (lightingEnabled) {
					//Perform lighting calculations (no specular)
					vertexProgSource +=
					"	float3 light = normalize(objSpaceLight.xyz - (iPosition.xyz * objSpaceLight.w)); \n"
					"	float diffuseFactor = max(dot(normal, light), 0); \n";
					if (subBatch->vertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE) != NULL)
						vertexProgSource += "oColor = (lightAmbient + diffuseFactor * lightDiffuse) * iColor; \n";
					else
						vertexProgSource += "oColor = (lightAmbient + diffuseFactor * lightDiffuse); \n";
				} else {
					if (subBatch->vertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE) != NULL)
						vertexProgSource += "oColor = iColor; \n";
					else
						vertexProgSource += "oColor = float4(1, 1, 1, 1); \n";
				}

				if (fadeEnabled) vertexProgSource +=
					//Fade out in the distance
					"	float dist = distance(camPos.xz, iPosition.xz);	\n"
					"	oColor.a *= (invisibleDist - dist) / fadeGap;   \n";

				texNum = 0;
				for (unsigned short i = 0; i < subBatch->vertexData->vertexDeclaration->getElementCount(); ++i) {
					const VertexElement *el = subBatch->vertexData->vertexDeclaration->getElement(i);
					if (el->getSemantic() == VES_TEXTURE_COORDINATES) {
						vertexProgSource +=
						"	oUV" + StringConverter::toString(texNum) + " = iUV" + StringConverter::toString(texNum) + ";	\n";
						++texNum;
					}
				}
				vertexProgSource +=
					"	oPosition = mul(worldViewProj, iPosition);  \n";
				if (sceneMgr->getFogMode() == Ogre::FOG_EXP2) {
					vertexProgSource +=
						"	oFog = 1 - clamp (pow (2.71828, -oPosition.z * iFogParams.x), 0, 1); \n";
				} else {
					vertexProgSource +=
						"	oFog = oPosition.z; \n";
				}
				vertexProgSource += "}";
			}

			if(!shaderLanguage.compare("glsl"))
			{
				vertexProgSource =
					"uniform float fadeGap;        \n"
					"uniform float invisibleDist;   \n";

				if (lightingEnabled) vertexProgSource +=
					"uniform vec4 objSpaceLight;   \n"
					"uniform vec4 lightDiffuse;	   \n"
					"uniform vec4 lightAmbient;	   \n";

				if (fadeEnabled) vertexProgSource +=
					"uniform vec3 camPos;          \n";

				vertexProgSource +=
					"void main() \n"
					"{ \n";

				if (lightingEnabled)
				{
					//Perform lighting calculations (no specular)
					vertexProgSource +=
					"   vec3 light = normalize(objSpaceLight.xyz - (gl_Vertex.xyz * objSpaceLight.w)); \n"
					"   float diffuseFactor = max(dot(gl_Normal, light), 0.0); \n";
					if (subBatch->vertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE) != NULL)
					{
						vertexProgSource += "   gl_FrontColor = (lightAmbient + diffuseFactor * lightDiffuse) * gl_Color; \n";
					}
					else
					{
						vertexProgSource += "   gl_FrontColor = (lightAmbient + diffuseFactor * lightDiffuse); \n";
					}
				}
				else
				{
					if (subBatch->vertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE) != NULL)
					{
						vertexProgSource += "   gl_FrontColor = gl_Color; \n";
					}
					else
					{
						vertexProgSource += "   gl_FrontColor = vec4(1.0, 1.0, 1.0, 1.0); \n";
					}
				}

				if (fadeEnabled)
				{
					vertexProgSource +=
					//Fade out in the distance
					"   float dist = distance(camPos.xz, gl_Vertex.xz);	\n"
					"   gl_FrontColor.a *= (invisibleDist - dist) / fadeGap;   \n";
				}

				unsigned texNum = 0;
				for (unsigned short i = 0; i < subBatch->vertexData->vertexDeclaration->getElementCount(); ++i)
				{
					const VertexElement *el = subBatch->vertexData->vertexDeclaration->getElement(i);
					if (el->getSemantic() == VES_TEXTURE_COORDINATES)
					{
						vertexProgSource +=
						"   gl_TexCoord[" + StringConverter::toString(texNum) + "] = gl_MultiTexCoord" + StringConverter::toString(texNum) + ";	\n";
						++texNum;
					}
				}

				vertexProgSource +=
					"   gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;  \n";
				if (sceneMgr->getFogMode() == Ogre::FOG_EXP2) {
					vertexProgSource +=
						"	gl_FogFragCoord = clamp(exp(- gl_Fog.density * gl_Fog.density * gl_Position.z * gl_Position.z), 0.0, 1.0); \n";
				} else {
					vertexProgSource +=
						"	gl_FogFragCoord = gl_Position.z; \n";
				}

				vertexProgSource +=	"}";
			}


			HighLevelGpuProgramPtr vertexShader = HighLevelGpuProgramManager::getSingleton().createProgram(
				vertexProgName,
				ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
				shaderLanguage, GPT_VERTEX_PROGRAM);

			vertexShader->setSource(vertexProgSource);

			if (shaderLanguage == "hlsl")
			{
				vertexShader->setParameter("target", "vs_1_1");
				vertexShader->setParameter("entry_point", "main");
			}
			else if(shaderLanguage == "cg")
			{
				vertexShader->setParameter("profiles", "vs_1_1 arbvp1");
				vertexShader->setParameter("entry_point", "main");
			}
			// GLSL can only have one entry point "main".

			vertexShader->load();
			if (vertexShader->hasCompileError()) {
				OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR, "Error loading the batching vertex shader.", "BatchPage::_updateShaders()");
			}
		}

		std::string fragmentProgramName("BatchFragStandard");
		String fragmentProgSource;
		//We also need a fragment program to go with our vertex program. Especially on ATI cards on Linux where we can't mix shaders and the fixed function pipeline.
		HighLevelGpuProgramPtr fragShader = static_cast<HighLevelGpuProgramPtr>(HighLevelGpuProgramManager::getSingleton().getByName(fragmentProgramName));
		if (fragShader.isNull()){
			Pass *pass = mat->getTechnique(0)->getPass(0);

			if (shaderLanguage == "glsl") {
				fragmentProgSource = "uniform sampler2D diffuseMap;\n"
					"void main()	{"
					"	gl_FragColor = texture2D(diffuseMap, gl_TexCoord[0].st);"
					"	gl_FragColor.rgb = mix(gl_Fog.color, (gl_LightModel.ambient * gl_FragColor + gl_FragColor), gl_FogFragCoord).rgb;"
					"}";

			} else {
				fragmentProgSource = "void main \n"
					"( \n"
					"    float2				iTexcoord		: TEXCOORD0, \n"
					"	 float				iFog 			: FOG, \n"
					"	 out float4         oColour			: COLOR, \n"
					"    uniform sampler2D  diffuseTexture	: TEXUNIT0, \n"
					"    uniform float3		iFogColour \n"
					") \n"
					"{ \n"
					"	oColour = tex2D(diffuseTexture, iTexcoord.xy); \n"
					"   oColour.xyz = lerp(oColour.xyz, iFogColour, iFog);\n"
					"}";
			}

			fragShader = HighLevelGpuProgramManager::getSingleton().createProgram(
				fragmentProgramName,
				ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
				shaderLanguage, GPT_FRAGMENT_PROGRAM);

			fragShader->setSource(fragmentProgSource);

			if (shaderLanguage == "hlsl") {
				fragShader->setParameter("entry_point", "main");
				fragShader->setParameter("target", "ps_2_0");
			} else if (shaderLanguage == "cg") {
				fragShader->setParameter("profiles", "ps_2_0 arbfp1");
				fragShader->setParameter("entry_point", "main");
			}

			fragShader->load();
			if (fragShader->hasCompileError()) {
				OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR, "Error loading the batching fragment shader.", "BatchPage::_updateShaders()");
			}
		}
		//Now that the shader is ready to be applied, apply it
		StringUtil::StrStreamType materialSignature;
		materialSignature << "BatchMat|";
		materialSignature << mat->getName() << "|";
		if (fadeEnabled){
			materialSignature << visibleDist << "|";
			materialSignature << invisibleDist << "|";
		}

		//Search for the desired material
		MaterialPtr generatedMaterial = MaterialManager::getSingleton().getByName(materialSignature.str());
		if (generatedMaterial.isNull()){
			//Clone the material
			generatedMaterial = mat->clone(materialSignature.str());

			//And apply the fade shader
			Ogre::Material::TechniqueIterator I = generatedMaterial->getSupportedTechniqueIterator();
			while (I.hasMoreElements()) {
				Technique *tech = I.getNext();
				for (unsigned short p = 0; p < tech->getNumPasses(); ++p){
					Pass *pass = tech->getPass(p);

					//Setup vertex program
					if (pass->getVertexProgramName() == "")
						pass->setVertexProgram(vertexProgName);

					if (pass->getFragmentProgramName() == "" && fragShader->isSupported())
						pass->setFragmentProgram(fragmentProgramName);

					try{
						GpuProgramParametersSharedPtr params = pass->getVertexProgramParameters();
						params->setIgnoreMissingParams(true);

						if (lightingEnabled) {
							params->setNamedAutoConstant("objSpaceLight", GpuProgramParameters::ACT_LIGHT_POSITION_OBJECT_SPACE);
							params->setNamedAutoConstant("lightDiffuse", GpuProgramParameters::ACT_DERIVED_LIGHT_DIFFUSE_COLOUR);
							params->setNamedAutoConstant("lightAmbient", GpuProgramParameters::ACT_DERIVED_AMBIENT_LIGHT_COLOUR);
							//params->setNamedAutoConstant("matAmbient", GpuProgramParameters::ACT_SURFACE_AMBIENT_COLOUR);
						}

						if (shaderLanguage.compare("glsl") == 0) {
							//glsl can use the built in gl_ModelViewProjectionMatrix
							params->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
						} else {
							params->setNamedAutoConstant("iFogParams", GpuProgramParameters::ACT_FOG_PARAMS);
						}

						if (fadeEnabled)
						{
							params->setNamedAutoConstant("camPos", GpuProgramParameters::ACT_CAMERA_POSITION_OBJECT_SPACE);

							//Set fade ranges
							params->setNamedAutoConstant("invisibleDist", GpuProgramParameters::ACT_CUSTOM);
							params->setNamedConstant("invisibleDist", invisibleDist);

							params->setNamedAutoConstant("fadeGap", GpuProgramParameters::ACT_CUSTOM);
							params->setNamedConstant("fadeGap", invisibleDist - visibleDist);

							if (pass->getAlphaRejectFunction() == CMPF_ALWAYS_PASS)
								pass->setSceneBlending(SBT_TRANSPARENT_ALPHA);
						}

						if (pass->hasFragmentProgram()) {
							params = pass->getFragmentProgramParameters();
							params->setIgnoreMissingParams(true);
							params->setNamedAutoConstant("iFogColour", GpuProgramParameters::ACT_FOG_COLOUR);
						}
					}
					catch (...) {
						OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR, "Error configuring batched geometry transitions. If you're using materials with custom vertex shaders, they will need to implement fade transitions to be compatible with BatchPage.", "BatchPage::_updateShaders()");
					}
				}
			}

		}

		//Apply the material
		subBatch->setMaterial(generatedMaterial);
	}

}
	//-----------------------------------------------------------------------------------
	void PbsMaterial::updateUniforms(const Pass* pass, const AutoParamDataSource* source, const LightList* pLightList)
	{
		// Vertex program
		GpuProgramParametersSharedPtr vertexParams = pass->getVertexProgramParameters();
		vertexParams->setIgnoreMissingParams(true);

		vertexParams->setNamedAutoConstant("mvpMat", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
		vertexParams->setNamedAutoConstant("mvMat", GpuProgramParameters::ACT_WORLDVIEW_MATRIX);

		// Fragment program
		GpuProgramParametersSharedPtr fragmentParams = pass->getFragmentProgramParameters();
		
		fragmentParams->setNamedAutoConstant("ivMat", GpuProgramParameters::ACT_INVERSE_VIEW_MATRIX);
		
		fragmentParams->setNamedConstant("in_albedo", mAlbedo);
		fragmentParams->setNamedConstant("in_f0", mF0);
		fragmentParams->setNamedConstant("in_roughness", mRoughness);
		fragmentParams->setNamedConstant("in_light_roughness_offset", mLightRoughnessOffset);

		fragmentParams->setNamedConstant("in_offset_main", mMainOffset);
		fragmentParams->setNamedConstant("in_scale_main", mMainScale);

		fragmentParams->setNamedConstant("in_offset_d1", mD1Offset);
		fragmentParams->setNamedConstant("in_scale_d1", mD1Scale);

		fragmentParams->setNamedConstant("in_offset_d2", mD2Offset);
		fragmentParams->setNamedConstant("in_scale_d2", mD2Scale);

		// Set light uniforms
		unsigned int count = std::min(mDirectionalLightCount + mPointLightCount + mSpotLightCount, maxLightCount);
		if (count)
		{
			Matrix4 viewMatrix = source->getViewMatrix();
			Quaternion viewMatrixQuat = viewMatrix.extractQuaternion();

			int directionalLightIndex = 0;
			int pointLightLightIndex = 0;
			int spotLightIndex = 0;

			for (unsigned int i = 0; i < count; i++)
			{
				Light* light = (*pLightList)[i];

				int index;
				if (light->getType() == Light::LT_DIRECTIONAL)
				{
					index = directionalLightIndex;
					directionalLightIndex++;
				}
				else if (light->getType() == Light::LT_POINT)
				{
					index = mDirectionalLightCount + pointLightLightIndex;
					pointLightLightIndex++;
				}
				else
				{
					index = mDirectionalLightCount + mPointLightCount + spotLightIndex;
					spotLightIndex++;
				}

				Vector3 pos = viewMatrix * light->getDerivedPosition();
				mLightPositions_es[index * 4 + 0] = pos.x;
				mLightPositions_es[index * 4 + 1] = pos.y;
				mLightPositions_es[index * 4 + 2] = pos.z;

				Vector3 dir = -(viewMatrixQuat * light->getDerivedDirection()).normalisedCopy();
				mLightDirections_es[index * 4 + 0] = dir.x;
				mLightDirections_es[index * 4 + 1] = dir.y;
				mLightDirections_es[index * 4 + 2] = dir.z;

				ColourValue color = light->getDiffuseColour();
				mLightColors[index * 4 + 0] = color.r;
				mLightColors[index* 4 + 1] = color.g;
				mLightColors[index* 4 + 2] = color.b;

				mLightParameters[index * 4 + 0] = light->getAttenuationRange();
				mLightParameters[index * 4 + 1] = Math::Cos(light->getSpotlightOuterAngle() / 2.0);
				mLightParameters[index * 4 + 2] = light->getSpotlightFalloff();
			}

			fragmentParams->setNamedConstant("lightPositions_es", &(mLightPositions_es[0]), count);
			fragmentParams->setNamedConstant("lightDirections_es", &(mLightDirections_es[0]), count);
			fragmentParams->setNamedConstant("lightColors", &(mLightColors[0]), count);
			fragmentParams->setNamedConstant("lightParameters", &(mLightParameters[0]), count);
		}

		// update the textures
		if (_hasSamplerChanged)
		{
			for (int i = 0; i < ST_COUNT; i++)
			{
				SamplerContainer& s = _samplers[i];
				if (s.status == SS_UPDATED)
				{
					updateTexturUnits(s.textureUnitState, fragmentParams, s, i);
					s.status = SS_ACTIVE;
				}
			}

			_hasSamplerChanged = false;
		}
	}
	//---------------------------------------------------------------------
	void TerrainMaterialGeneratorA::SM2Profile::ShaderHelper::defaultFpParams(
		const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const HighLevelGpuProgramPtr& prog)
	{
		GpuProgramParametersSharedPtr params = prog->getDefaultParameters();
		params->setIgnoreMissingParams(true);

		params->setNamedAutoConstant("ambient", GpuProgramParameters::ACT_AMBIENT_LIGHT_COLOUR);
		params->setNamedAutoConstant("lightPosObjSpace", GpuProgramParameters::ACT_LIGHT_POSITION_OBJECT_SPACE, 0);
		params->setNamedAutoConstant("lightDiffuseColour", GpuProgramParameters::ACT_LIGHT_DIFFUSE_COLOUR, 0);
		params->setNamedAutoConstant("lightSpecularColour", GpuProgramParameters::ACT_LIGHT_SPECULAR_COLOUR, 0);
		params->setNamedAutoConstant("eyePosObjSpace", GpuProgramParameters::ACT_CAMERA_POSITION_OBJECT_SPACE);
		params->setNamedAutoConstant("fogColour", GpuProgramParameters::ACT_FOG_COLOUR);

		if (prof->isShadowingEnabled(tt, terrain))
		{
			uint numTextures = 1;
			if (prof->getReceiveDynamicShadowsPSSM())
			{
				PSSMShadowCameraSetup* pssm = prof->getReceiveDynamicShadowsPSSM();
				numTextures = (uint)pssm->getSplitCount();
				Vector4 splitPoints;
				const PSSMShadowCameraSetup::SplitPointList& splitPointList = pssm->getSplitPoints();
				// Populate from split point 1, not 0, since split 0 isn't useful (usually 0)
				for (uint i = 1; i < numTextures; ++i)
				{
					splitPoints[i-1] = splitPointList[i];
				}
				params->setNamedConstant("pssmSplitPoints", splitPoints);
			}

			if (prof->getReceiveDynamicShadowsDepth())
			{
				size_t samplerOffset = (tt == HIGH_LOD) ? mShadowSamplerStartHi : mShadowSamplerStartLo;
				for (uint i = 0; i < numTextures; ++i)
				{
					params->setNamedAutoConstant("inverseShadowmapSize" + StringConverter::toString(i), 
						GpuProgramParameters::ACT_INVERSE_TEXTURE_SIZE, i + samplerOffset);
				}
			}
		}

        // Explicitly bind samplers for GLSL
        if ((prof->_getShaderLanguage() == "glsl") || (prof->_getShaderLanguage() == "glsles"))
        {
            int numSamplers = 0;
            if (tt == LOW_LOD)
            {
                params->setNamedConstant("compositeMap", (int)numSamplers++);
            }
            else
            {
                params->setNamedConstant("globalNormal", (int)numSamplers++);

                if (terrain->getGlobalColourMapEnabled() && prof->isGlobalColourMapEnabled())
                {
                    params->setNamedConstant("globalColourMap", (int)numSamplers++);
                }
                if (prof->isLightmapEnabled())
                {
                    params->setNamedConstant("lightMap", (int)numSamplers++);
                }

                uint maxLayers = prof->getMaxLayers(terrain);
                uint numBlendTextures = std::min(terrain->getBlendTextureCount(maxLayers), terrain->getBlendTextureCount());
                uint numLayers = std::min(maxLayers, static_cast<uint>(terrain->getLayerCount()));
                // Blend textures - sampler definitions
                for (uint i = 0; i < numBlendTextures; ++i)
                {
                    params->setNamedConstant("blendTex" + StringConverter::toString(i), (int)numSamplers++);
                }

                // Layer textures - sampler definitions & UV multipliers
                for (uint i = 0; i < numLayers; ++i)
                {
                    params->setNamedConstant("difftex" + StringConverter::toString(i), (int)numSamplers++);
                    params->setNamedConstant("normtex" + StringConverter::toString(i), (int)numSamplers++);
                }

                uint numShadowTextures = 1;
                if (prof->getReceiveDynamicShadowsPSSM())
                    numShadowTextures = (uint)prof->getReceiveDynamicShadowsPSSM()->getSplitCount();

                for (uint i = 0; i < numShadowTextures; ++i)
                {
                    if (prof->isShadowingEnabled(tt, terrain))
                        params->setNamedConstant("shadowMap" + StringConverter::toString(i), (int)numSamplers++);
                }
            }
        }
	}