//-----------------------------------------------------------------------------
///
void WindBatchPage::_updateShaders()
{
if (!m_bShadersSupported)
return;
unsigned int i = 0;
BatchedGeometry::TSubBatchIterator it = m_pBatchGeom->getSubBatchIterator();
while (it.hasMoreElements())
{
BatchedGeometry::SubBatch *subBatch = it.getNext();
const MaterialPtr &ptrMat = m_vecUnfadedMaterials[i++];
//Check if lighting should be enabled
bool lightingEnabled = false;
for (unsigned short t = 0, techCnt = ptrMat->getNumTechniques(); t < techCnt; ++t)
{
Technique *tech = ptrMat->getTechnique(t);
for (unsigned short p = 0, passCnt = tech->getNumPasses(); p < passCnt; ++p)
{
if (tech->getPass(p)->getLightingEnabled())
{
lightingEnabled = true;
break;
}
}
if (lightingEnabled)
break;
}
//Compile the shader script based on various material / fade options
StringUtil::StrStreamType tmpName;
tmpName << "BatchPage_";
if (m_bFadeEnabled)
tmpName << "fade_";
if (lightingEnabled)
tmpName << "lit_";
if (subBatch->m_pVertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE) != NULL)
tmpName << "clr_";
for (unsigned short i = 0; i < subBatch->m_pVertexData->vertexDeclaration->getElementCount(); ++i)
{
const VertexElement *el = subBatch->m_pVertexData->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;
if (Root::getSingleton().getRenderSystem()->getName() == "Direct3D9 Rendering Subsystem")
shaderLanguage = "hlsl";
else if(Root::getSingleton().getRenderSystem()->getName() == "OpenGL Rendering Subsystem")
shaderLanguage = "glsl";
else
shaderLanguage = "cg";
//If the shader hasn't been created yet, create it
if (HighLevelGpuProgramManager::getSingleton().getByName(vertexProgName).isNull())
{
Pass *pass = ptrMat->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->m_pVertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE) != NULL)
{
vertexProgSource +=
" float4 iColor : COLOR, \n";
}
int texNum = 0;
unsigned short texCoordCount = 0;
for (unsigned short j = 0; j < subBatch->m_pVertexData->vertexDeclaration->getElementCount(); ++j)
{
const VertexElement *el = subBatch->m_pVertexData->vertexDeclaration->getElement(j);
if (el->getSemantic() == VES_TEXTURE_COORDINATES)
{
++ texCoordCount;
}
}
for (unsigned short i = 0; i < subBatch->m_pVertexData->vertexDeclaration->getElementCount(); ++i)
{
const VertexElement *el = subBatch->m_pVertexData->vertexDeclaration->getElement(i);
if (el->getSemantic() == VES_TEXTURE_COORDINATES)
{
if (el->getIndex() == texCoordCount - 2)
{
vertexProgSource +=
" float4 params : TEXCOORD" + StringConverter::toString(texCoordCount-2) + ", \n";
}
else
{
if (el->getIndex() == texCoordCount - 1)
{
vertexProgSource +=
" float4 originPos : TEXCOORD" + StringConverter::toString(texCoordCount-1) + ", \n";
}
else
{
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";
if (lightingEnabled)
{
vertexProgSource +=
" uniform float4 objSpaceLight, \n"
" uniform float4 lightDiffuse, \n"
" uniform float4 lightAmbient, \n";
}
if (m_bFadeEnabled)
{
vertexProgSource +=
" uniform float3 camPos, \n"
" uniform float fadeGap, \n"
" uniform float invisibleDist, \n";
}
vertexProgSource +=
" uniform float4x4 worldViewProj,\n"
" uniform float time) \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->m_pVertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE) != NULL)
{
vertexProgSource +=
" oColor = (lightAmbient + diffuseFactor * lightDiffuse) * iColor; \n";
}
else
{
vertexProgSource +=
" oColor = (lightAmbient + diffuseFactor * lightDiffuse); \n";
}
}
else
{
if (subBatch->m_pVertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE) != NULL)
{
vertexProgSource +=
" oColor = iColor; \n";
}
else
{
vertexProgSource +=
" oColor = float4(1, 1, 1, 1); \n";
}
}
if (m_bFadeEnabled)
{
//Fade out in the distance
vertexProgSource +=
" float dist = distance(camPos.xz, iPosition.xz); \n"
" oColor.a *= (invisibleDist - dist) / fadeGap; \n";
}
for (unsigned short i = 0; i < texCoordCount - 2; ++i)
{
vertexProgSource +=
" oUV" + StringConverter::toString(i) + " = iUV" + StringConverter::toString(i) + "; \n";
}
vertexProgSource +=
" float radiusCoeff = params.x; \n"
" float heightCoeff = params.y; \n"
" float factorX = params.z; \n"
" float factorY = params.w; \n"
" float4 tmpPos = iPosition; \n"
/*
2 different methods are used to for the sin calculation :
- the first one gives a better effect but at the cost of a few fps because of the 2 sines
- the second one uses less ressources but is a bit less realistic
a sin approximation could be use to optimize performances
*/
#if 0
" tmpPos.y += sin(time + originPos.z + tmpPos.y + tmpPos.x) * radiusCoeff * radiusCoeff * factorY; \n"
" tmpPos.x += sin(time + originPos.z ) * heightCoeff * heightCoeff * factorX ; \n"
#else
" float sinval = sin(time + originPos.z ); \n"
" tmpPos.y += sinval * radiusCoeff * radiusCoeff * factorY; \n"
" tmpPos.x += sinval * heightCoeff * heightCoeff * factorX ; \n"
#endif
" oPosition = mul(worldViewProj, tmpPos); \n"
" oFog = oPosition.z; \n"
"}";
}
if(!shaderLanguage.compare("glsl"))
{
unsigned short texCoordCount = 0;
for (unsigned short j = 0; j < subBatch->m_pVertexData->vertexDeclaration->getElementCount(); ++j)
{
const VertexElement *el = subBatch->m_pVertexData->vertexDeclaration->getElement(j);
if (el->getSemantic() == VES_TEXTURE_COORDINATES)
{
++ texCoordCount;
}
}
if (lightingEnabled)
{
vertexProgSource +=
"uniform vec4 objSpaceLight; \n"
"uniform vec4 lightDiffuse; \n"
"uniform vec4 lightAmbient; \n";
}
if (m_bFadeEnabled)
{
vertexProgSource +=
"uniform vec3 camPos; \n"
"uniform float fadeGap; \n"
"uniform float invisibleDist; \n";
}
vertexProgSource +=
"uniform float time; \n"
"void main() \n"
"{ \n";
int texNum = 0;
for (unsigned short i = 0; i < subBatch->m_pVertexData->vertexDeclaration->getElementCount(); ++i)
{
const VertexElement *el = subBatch->m_pVertexData->vertexDeclaration->getElement(i);
if (el->getSemantic() == VES_TEXTURE_COORDINATES)
{
if (el->getIndex() == texCoordCount - 2)
{
vertexProgSource +=
" vec4 params = gl_MultiTexCoord" + StringConverter::toString(texCoordCount-2) + "; \n";
}
else
{
if (el->getIndex() == texCoordCount - 1)
{
vertexProgSource +=
" vec4 originPos = gl_MultiTexCoord" + StringConverter::toString(texCoordCount-1) + "; \n";
}
else
{
vertexProgSource +=
" gl_TexCoord[" + StringConverter::toString(texNum) + "] = gl_MultiTexCoord" + StringConverter::toString(texNum) + "; \n";
}
++texNum;
}
}
}
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.xyz, light), 0.0); \n";
if (subBatch->m_pVertexData->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->m_pVertexData->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 (m_bFadeEnabled)
{
//Fade out in the distance
vertexProgSource +=
" float dist = distance(camPos.xz, gl_Vertex.xz); \n"
" gl_FrontColor.a *= (invisibleDist - dist) / fadeGap; \n";
}
vertexProgSource +=
" float radiusCoeff = params.x; \n"
" float heightCoeff = params.y; \n"
" float factorX = params.z; \n"
" float factorY = params.w; \n"
" vec4 tmpPos = gl_Vertex; \n"
/*
2 different methods are used to for the sin calculation :
- the first one gives a better effect but at the cost of a few fps because of the 2 sines
- the second one uses less ressources but is a bit less realistic
a sin approximation could be use to optimize performances
*/
#if 1
" tmpPos.y += sin(time + originPos.z + tmpPos.y + tmpPos.x) * radiusCoeff * radiusCoeff * factorY; \n"
" tmpPos.x += sin(time + originPos.z ) * heightCoeff * heightCoeff * factorX; \n"
#else
" float sinval = sin(time + originPos.z ); \n"
" tmpPos.y += sinval * radiusCoeff * radiusCoeff * factorY; \n"
" tmpPos.x += sinval * heightCoeff * heightCoeff * factorX; \n"
#endif
" gl_Position = gl_ModelViewProjectionMatrix * tmpPos; \n"
" gl_FogFragCoord = gl_Position.z; \n"
"}";
}
// test for shader source
//std::ofstream shaderOutput;
//shaderOutput.open((vertexProgName+std::string(".cg")).c_str());
//shaderOutput << vertexProgSource;
//shaderOutput.close();
// end test for shader source
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();
}
//Now that the shader is ready to be applied, apply it
StringUtil::StrStreamType materialSignature;
materialSignature << "BatchMat|";
materialSignature << ptrMat->getName() << "|";
if (m_bFadeEnabled)
{
materialSignature << m_fVisibleDist << "|";
materialSignature << m_fInvisibleDist << "|";
}
//Search for the desired material
MaterialPtr generatedMaterial = MaterialManager::getSingleton().getByName(materialSignature.str());
if (generatedMaterial.isNull())
{
//Clone the material
generatedMaterial = ptrMat->clone(materialSignature.str());
//And apply the fade shader
for (unsigned short t = 0; t < generatedMaterial->getNumTechniques(); ++t){
Technique *tech = generatedMaterial->getTechnique(t);
for (unsigned short p = 0; p < tech->getNumPasses(); ++p){
Pass *pass = tech->getPass(p);
//Setup vertex program
if (pass->getVertexProgramName() == "")
pass->setVertexProgram(vertexProgName);
try{
GpuProgramParametersSharedPtr params = pass->getVertexProgramParameters();
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);
}
params->setNamedConstantFromTime("time", 1);
if(shaderLanguage.compare("glsl"))
{
//glsl can use the built in gl_ModelViewProjectionMatrix
params->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
}
if (m_bFadeEnabled)
{
params->setNamedAutoConstant("camPos", GpuProgramParameters::ACT_CAMERA_POSITION_OBJECT_SPACE);
//Set fade ranges
params->setNamedAutoConstant("invisibleDist", GpuProgramParameters::ACT_CUSTOM);
params->setNamedConstant("invisibleDist", m_fInvisibleDist);
params->setNamedAutoConstant("fadeGap", GpuProgramParameters::ACT_CUSTOM);
params->setNamedConstant("fadeGap", m_fInvisibleDist - m_fVisibleDist);
if (pass->getAlphaRejectFunction() == CMPF_ALWAYS_PASS)
pass->setSceneBlending(SBT_TRANSPARENT_ALPHA);
}
}
catch (const Ogre::Exception &e)
{
// test for shader source
std::ofstream shaderOutput;
shaderOutput.open("exception.log");
shaderOutput << e.getDescription();
shaderOutput.close();
}
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 TerrainMaterialGeneratorC::SM2Profile::addTechnique(
const MaterialPtr& mat, const Terrain* terrain, TechniqueType tt)
{
Technique* tech = mat->createTechnique();
tech->setSchemeName("GBuffer");
// Only supporting one pass
Pass* pass = tech->createPass();
//pass->setName("NO_DEFERRED");
GpuProgramManager& gmgr = GpuProgramManager::getSingleton();
HighLevelGpuProgramManager& hmgr = HighLevelGpuProgramManager::getSingleton();
if (!mShaderGen)
{
if (hmgr.isLanguageSupported("cg"))
mShaderGen = OGRE_NEW ShaderHelperCg();
else
{
// todo
}
// check SM3 features
mSM3Available = GpuProgramManager::getSingleton().isSyntaxSupported("ps_3_0");
mSM4Available = GpuProgramManager::getSingleton().isSyntaxSupported("ps_4_0");
}
HighLevelGpuProgramPtr vprog = mShaderGen->generateVertexProgram(this, terrain, tt);
HighLevelGpuProgramPtr fprog = mShaderGen->generateFragmentProgram(this, terrain, tt);
pass->setVertexProgram(vprog->getName());
pass->setFragmentProgram(fprog->getName());
if (tt == HIGH_LOD || tt == RENDER_COMPOSITE_MAP)
{
// global normal map
TextureUnitState* tu = pass->createTextureUnitState();
tu->setTextureName(terrain->getTerrainNormalMap()->getName());
tu->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
// global colour map
if (terrain->getGlobalColourMapEnabled() && isGlobalColourMapEnabled())
{
tu = pass->createTextureUnitState(terrain->getGlobalColourMap()->getName());
tu->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
}
// light map
if (isLightmapEnabled())
{
tu = pass->createTextureUnitState(terrain->getLightmap()->getName());
tu->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
}
// blend maps
uint maxLayers = getMaxLayers(terrain);
uint numBlendTextures = std::min(terrain->getBlendTextureCount(maxLayers), terrain->getBlendTextureCount());
uint numLayers = std::min(maxLayers, static_cast<uint>(terrain->getLayerCount()));
for (uint i = 0; i < numBlendTextures; ++i)
{
tu = pass->createTextureUnitState(terrain->getBlendTextureName(i));
tu->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
}
// layer textures
for (uint i = 0; i < numLayers; ++i)
{
// diffuse / specular
pass->createTextureUnitState(terrain->getLayerTextureName(i, 0));
// normal / height
pass->createTextureUnitState(terrain->getLayerTextureName(i, 1));
}
}
else
{
// LOW_LOD textures
// composite map
TextureUnitState* tu = pass->createTextureUnitState();
tu->setTextureName(terrain->getCompositeMap()->getName());
tu->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
// That's it!
}
}
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;
if (Root::getSingleton().getRenderSystem()->getName() == "Direct3D9 Rendering Subsystem")
shaderLanguage = "hlsl";
else if(Root::getSingleton().getRenderSystem()->getName() == "OpenGL Rendering Subsystem")
shaderLanguage = "glsl";
else
shaderLanguage = "cg";
//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";
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"
" oFog = oPosition.z; \n"
"}";
}
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"
" gl_FogFragCoord = gl_Position.z; \n"
"}";
}
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();
}
//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
for (unsigned short t = 0; t < generatedMaterial->getNumTechniques(); ++t){
Technique *tech = generatedMaterial->getTechnique(t);
for (unsigned short p = 0; p < tech->getNumPasses(); ++p){
Pass *pass = tech->getPass(p);
//Setup vertex program
if (pass->getVertexProgramName() == "")
pass->setVertexProgram(vertexProgName);
try{
GpuProgramParametersSharedPtr params = pass->getVertexProgramParameters();
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"))
{
//glsl can use the built in gl_ModelViewProjectionMatrix
params->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
}
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);
}
}
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 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++);
}
}
}
}
//-----------------------------------------------------------------------------
void GLSLProgramProcessor::bindSubShaders(Program* program, GpuProgramPtr pGpuProgram)
{
if (program->getDependencyCount() > 0)
{
// Get all attached shaders so we do not attach shaders twice.
// maybe GLSLProgram should take care of that ( prevent add duplicate shaders )
String attachedShaders = pGpuProgram->getParameter("attach");
String subShaderDef = "";
for (unsigned int i=0; i < program->getDependencyCount(); ++i)
{
// Here we append _VS and _FS to the library shaders (so max each lib shader
// is compiled twice once as vertex and once as fragment shader)
String subShaderName = program->getDependency(i);
if (program->getType() == GPT_VERTEX_PROGRAM)
{
subShaderName += "_VS";
}
else
{
subShaderName += "_FS";
}
// Check if the library shader already compiled
if(!HighLevelGpuProgramManager::getSingleton().resourceExists(subShaderName))
{
// Create the library shader
HighLevelGpuProgramPtr pSubGpuProgram = HighLevelGpuProgramManager::getSingleton().createProgram(subShaderName,
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, TargetLanguage, program->getType());
// Set the source name
String sourceName = program->getDependency(i) + "." + TargetLanguage;
pSubGpuProgram->setSourceFile(sourceName);
pSubGpuProgram->load();
// Prepend the current GLSL version
String versionLine = "#version " + StringConverter::toString(Root::getSingleton().getRenderSystem()->getNativeShadingLanguageVersion()) + "\n";
pSubGpuProgram->setSource(versionLine + pSubGpuProgram->getSource());
// If we have compile errors than stop processing
if (pSubGpuProgram->hasCompileError())
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Could not compile shader library from the source file: " + sourceName,
"GLSLProgramProcessor::bindSubShaders" );
}
mLibraryPrograms.push_back(subShaderName);
}
// Check if the lib shader already attached to this shader
if (attachedShaders.find(subShaderName) == String::npos)
{
// Append the shader name to subShaders
subShaderDef += subShaderName + " ";
}
}
// Check if we have something to attach
if (subShaderDef.length() > 0)
{
pGpuProgram->setParameter("attach", subShaderDef);
}
}
}
//-----------------------------------------------------------------------------
GpuProgramPtr ProgramManager::createGpuProgram(Program* shaderProgram,
ProgramWriter* programWriter,
const String& language,
const String& profiles,
const StringVector& profilesList,
const String& cachePath)
{
stringstream sourceCodeStringStream;
// Generate source code.
programWriter->writeSourceCode(sourceCodeStringStream, shaderProgram);
String source = sourceCodeStringStream.str();
// Generate program name.
String programName = generateHash(source);
if (shaderProgram->getType() == GPT_VERTEX_PROGRAM)
{
programName += "_VS";
}
else if (shaderProgram->getType() == GPT_FRAGMENT_PROGRAM)
{
programName += "_FS";
}
// Try to get program by name.
HighLevelGpuProgramPtr pGpuProgram =
HighLevelGpuProgramManager::getSingleton().getByName(
programName, ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME);
if(pGpuProgram) {
return static_pointer_cast<GpuProgram>(pGpuProgram);
}
// Case the program doesn't exist yet.
// Create new GPU program.
pGpuProgram = HighLevelGpuProgramManager::getSingleton().createProgram(programName,
ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME, language, shaderProgram->getType());
// Case cache directory specified -> create program from file.
if (!cachePath.empty())
{
const String programFullName = programName + "." + language;
const String programFileName = cachePath + programFullName;
std::ifstream programFile;
// Check if program file already exist.
programFile.open(programFileName.c_str());
// Case we have to write the program to a file.
if (!programFile)
{
std::ofstream outFile(programFileName.c_str());
if (!outFile)
return GpuProgramPtr();
outFile << source;
outFile.close();
}
else
{
// use program file version
StringStream buffer;
programFile >> buffer.rdbuf();
source = buffer.str();
}
}
pGpuProgram->setSource(source);
pGpuProgram->setParameter("entry_point", shaderProgram->getEntryPointFunction()->getName());
if (language == "hlsl")
{
// HLSL program requires specific target profile settings - we have to split the profile string.
StringVector::const_iterator it = profilesList.begin();
StringVector::const_iterator itEnd = profilesList.end();
for (; it != itEnd; ++it)
{
if (GpuProgramManager::getSingleton().isSyntaxSupported(*it))
{
pGpuProgram->setParameter("target", *it);
break;
}
}
pGpuProgram->setParameter("enable_backwards_compatibility", "true");
pGpuProgram->setParameter("column_major_matrices", StringConverter::toString(shaderProgram->getUseColumnMajorMatrices()));
}
pGpuProgram->setParameter("profiles", profiles);
pGpuProgram->load();
// Case an error occurred.
if (pGpuProgram->hasCompileError())
{
//! [debug_break]
pGpuProgram.reset();
//! [debug_break]
return GpuProgramPtr(pGpuProgram);
}
// Add the created GPU program to local cache.
if (pGpuProgram->getType() == GPT_VERTEX_PROGRAM)
{
mVertexShaderMap[programName] = pGpuProgram;
}
else if (pGpuProgram->getType() == GPT_FRAGMENT_PROGRAM)
{
mFragmentShaderMap[programName] = pGpuProgram;
}
return static_pointer_cast<GpuProgram>(pGpuProgram);
}
GpuProgramPtr GBufferMaterialGeneratorImpl::generateVertexShader(MaterialGenerator::Perm permutation)
{
StringStream ss;
if(mIsGLSL)
{
ss << "#version 150" << std::endl;
ss << "in vec4 vertex;" << std::endl;
ss << "in vec3 normal;" << std::endl;
uint32 numTexCoords = (permutation & GBufferMaterialGenerator::GBP_TEXCOORD_MASK) >> 8;
for (uint32 i=0; i<numTexCoords; i++)
{
ss << "in vec2 uv" << i << ';' << std::endl;
}
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << "in vec3 tangent;" << std::endl;
}
//TODO : Skinning inputs
ss << std::endl;
#ifdef WRITE_LINEAR_DEPTH
ss << "out vec3 oViewPos;" << std::endl;
#else
ss << "out float oDepth;" << std::endl;
#endif
ss << "out vec3 oNormal;" << std::endl;
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << "out vec3 oTangent;" << std::endl;
ss << "out vec3 oBiNormal;" << std::endl;
}
for (uint32 i=0; i<numTexCoords; i++)
{
ss << "out vec2 oUv" << i << ";" << std::endl;
}
ss << std::endl;
ss << "uniform mat4 cWorldViewProj;" << std::endl;
ss << "uniform mat4 cWorldView;" << std::endl;
ss << "void main()" << std::endl;
ss << "{" << std::endl;
ss << " gl_Position = cWorldViewProj * vertex;" << std::endl;
ss << " oNormal = (cWorldView * vec4(normal,0)).xyz;" << std::endl;
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << " oTangent = (cWorldView * vec4(tangent,0)).xyz;" << std::endl;
ss << " oBiNormal = cross(oNormal, oTangent);" << std::endl;
}
#ifdef WRITE_LINEAR_DEPTH
ss << " oViewPos = (cWorldView * vertex).xyz;" << std::endl;
#else
ss << " oDepth = gl_Position.w;" << std::endl;
#endif
for (uint32 i=0; i<numTexCoords; i++) {
ss << " oUv" << i << " = uv" << i << ';' << std::endl;
}
ss << "}" << std::endl;
String programSource = ss.str();
String programName = mBaseName + "VP_" + StringConverter::toString(permutation);
#if OGRE_DEBUG_MODE
LogManager::getSingleton().getDefaultLog()->logMessage(programSource);
#endif
// Create shader object
HighLevelGpuProgramPtr ptrProgram = HighLevelGpuProgramManager::getSingleton().createProgram(programName,
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"glsl", GPT_VERTEX_PROGRAM);
ptrProgram->setSource(programSource);
ptrProgram->setParameter("syntax", "glsl150");
const GpuProgramParametersSharedPtr& params = ptrProgram->getDefaultParameters();
params->setNamedAutoConstant("cWorldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
params->setNamedAutoConstant("cWorldView", GpuProgramParameters::ACT_WORLDVIEW_MATRIX);
ptrProgram->load();
return GpuProgramPtr(ptrProgram);
}
else
{
void Shader::prepare()
{
// determining shader level and generating a part of the level string
std::string levelString = "_basic";
if (shaderLevel == LEVEL_INTERMEDIATE) {
levelString = "_intermediate";
} else if (shaderLevel == LEVEL_ADVANCED) {
levelString = "_advanced";
}
std::string vertexString;
std::string geometryString;
std::string fragmentString;
// trying to use actual shader level, choosing basic as default/backup
if (ResourceGroupManager::getSingleton()
.resourceExistsInAnyGroup(shaderName + levelString + ".vert")) {
vertexString = shaderName + levelString + ".vert";
} else {
vertexString = shaderName + "_basic.vert";
}
if (ResourceGroupManager::getSingleton()
.resourceExistsInAnyGroup(shaderName + levelString + ".geom")) {
geometryString = shaderName + levelString + ".geom";
} else {
geometryString = shaderName + "_basic.geom";
}
if (ResourceGroupManager::getSingleton()
.resourceExistsInAnyGroup(shaderName + levelString + ".frag")) {
fragmentString = shaderName + levelString + ".frag";
} else {
fragmentString = shaderName + "_basic.frag";
}
// creating new material
material = MaterialManager::getSingletonPtr()->create(materialName + shaderName,
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
pass = material->getTechnique(0)->getPass(0);
// with dynamic lighting only geometry with normals will be displayed
pass->setLightingEnabled(true);
material->setReceiveShadows(true);
// loading vertex shader if there is one
if (ResourceGroupManager::getSingleton()
.resourceExistsInAnyGroup(vertexString)) {
HighLevelGpuProgramPtr vertex =
HighLevelGpuProgramManager::getSingletonPtr()->createProgram(
shaderName + "_v",
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"glsl", GpuProgramType::GPT_VERTEX_PROGRAM);
vertex->setSourceFile(vertexString);
pass->setVertexProgram(vertex->getName());
}
// loading geometry shader if there is one
if (ResourceGroupManager::getSingleton()
.resourceExistsInAnyGroup(geometryString)) {
geometry = HighLevelGpuProgramManager::getSingletonPtr()->createProgram(
shaderName + "_g",
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, "glsl",
GpuProgramType::GPT_GEOMETRY_PROGRAM);
geometry->setSourceFile(geometryString);
pass->setGeometryProgram(geometry->getName());
}
// loading fragment shader if there is one
if (ResourceGroupManager::getSingleton()
.resourceExistsInAnyGroup(fragmentString)) {
HighLevelGpuProgramPtr fragment =
HighLevelGpuProgramManager::
getSingletonPtr()->createProgram(shaderName + "_f",
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"glsl", GpuProgramType::GPT_FRAGMENT_PROGRAM);
fragment->setSourceFile(fragmentString);
pass->setFragmentProgram(fragment->getName());
}
entity->getOgreEntity()->setMaterialName(material->getName());
}
//-----------------------------------------------------------------------------
/// Constructor
StaticBillboardSet::StaticBillboardSet(SceneManager *mgr, SceneNode *rootSceneNode, BillboardMethod method) :
mVisible (true),
mFadeEnabled (false),
mRenderMethod (method),
mpSceneMgr (mgr),
mpSceneNode (NULL),
mpEntity (NULL),
mfUFactor (1.f),
mfVFactor (1.f),
mpFallbackBillboardSet (NULL),
mBBOrigin (BBO_CENTER),
mFadeVisibleDist (0.f),
mFadeInvisibleDist (0.f)
{
assert(rootSceneNode);
//Fall back to BB_METHOD_COMPATIBLE if vertex shaders are not available
if (method == BB_METHOD_ACCELERATED)
{
const RenderSystemCapabilities *caps = Root::getSingleton().getRenderSystem()->getCapabilities();
if (!caps->hasCapability(RSC_VERTEX_PROGRAM))
mRenderMethod = BB_METHOD_COMPATIBLE;
}
mpSceneNode = rootSceneNode->createChildSceneNode();
mEntityName = getUniqueID("SBSentity");
if (mRenderMethod == BB_METHOD_ACCELERATED)
{
//Load vertex shader to align billboards to face the camera (if not loaded already)
if (s_nSelfInstances == 0)
{
const Ogre::String &renderName = Root::getSingleton().getRenderSystem()->getName();
s_isGLSL = renderName == "OpenGL Rendering Subsystem" ? true : false;
Ogre::String shaderLanguage = s_isGLSL ? "glsl" : renderName == "Direct3D9 Rendering Subsystem" ? "hlsl" : "cg";
//First shader, simple camera-alignment
String vertexProg;
if (!s_isGLSL) // DirectX HLSL or nVidia CG
{
vertexProg =
"void Sprite_vp( \n"
" float4 position : POSITION, \n"
" float3 normal : NORMAL, \n"
" float4 color : COLOR, \n"
" float2 uv : TEXCOORD0, \n"
" out float4 oPosition : POSITION, \n"
" out float2 oUv : TEXCOORD0, \n"
" out float4 oColor : COLOR, \n"
" out float oFog : FOG, \n"
" uniform float4x4 worldViewProj, \n"
" uniform float uScroll, \n"
" uniform float vScroll, \n"
" uniform float4 preRotatedQuad[4] ) \n"
"{ \n"
//Face the camera
" float4 vCenter = float4( position.x, position.y, position.z, 1.0f ); \n"
" float4 vScale = float4( normal.x, normal.y, normal.x, 1.0f ); \n"
" oPosition = mul( worldViewProj, vCenter + (preRotatedQuad[normal.z] * vScale) ); \n"
//Color
" oColor = color; \n"
//UV Scroll
" oUv = uv; \n"
" oUv.x += uScroll; \n"
" oUv.y += vScroll; \n"
//Fog
" oFog = oPosition.z; \n"
"}";
}
else // OpenGL GLSL
{
vertexProg =
"uniform float uScroll; \n"
"uniform float vScroll; \n"
"uniform vec4 preRotatedQuad[4]; \n"
"void main() { \n"
//Face the camera
" vec4 vCenter = vec4( gl_Vertex.x, gl_Vertex.y, gl_Vertex.z, 1.0 ); \n"
" vec4 vScale = vec4( gl_Normal.x, gl_Normal.y, gl_Normal.x , 1.0 ); \n"
" gl_Position = gl_ModelViewProjectionMatrix * (vCenter + (preRotatedQuad[int(gl_Normal.z)] * vScale) ); \n"
//Color
" gl_FrontColor = gl_Color; \n"
//UV Scroll
" gl_TexCoord[0] = gl_MultiTexCoord0; \n"
" gl_TexCoord[0].x += uScroll; \n"
" gl_TexCoord[0].y += vScroll; \n"
//Fog
" gl_FogFragCoord = gl_Position.z; \n"
"}";
}
#if OGRE_VERSION_MAJOR <= 1
#if OGRE_VERSION_MINOR <= 8
HighLevelGpuProgramPtr vertexShader = HighLevelGpuProgramManager::getSingleton().getByName("Sprite_vp");
#else
HighLevelGpuProgramPtr vertexShader = HighLevelGpuProgramManager::getSingleton().getByName("Sprite_vp").staticCast<HighLevelGpuProgram>();
#endif
#endif
assert(vertexShader.isNull() && "Sprite_vp already exist");
vertexShader = HighLevelGpuProgramManager::getSingleton().createProgram(
"Sprite_vp", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, shaderLanguage, GPT_VERTEX_PROGRAM);
vertexShader->setSource(vertexProg);
// Set entry point for vertex program. GLSL can only have one entry point "main".
if (!s_isGLSL)
{
if (shaderLanguage == "hlsl")
{
vertexShader->setParameter("target", "vs_1_1");
vertexShader->setParameter("entry_point", "Sprite_vp");
}
else if(shaderLanguage == "cg")
{
vertexShader->setParameter("profiles", "vs_1_1 arbvp1");
vertexShader->setParameter("entry_point", "Sprite_vp");
}
else
{
assert(false && "Unknown shader language");
}
}
// compile vertex shader
vertexShader->load();
//====================================================================
//Second shader, camera alignment and distance based fading
String vertexProg2;
if (!s_isGLSL) // DirectX HLSL or nVidia CG
{
vertexProg2 =
"void SpriteFade_vp( \n"
" float4 position : POSITION, \n"
" float3 normal : NORMAL, \n"
" float4 color : COLOR, \n"
" float2 uv : TEXCOORD0, \n"
" out float4 oPosition : POSITION, \n"
" out float2 oUv : TEXCOORD0, \n"
" out float4 oColor : COLOR, \n"
" out float oFog : FOG, \n"
" uniform float4x4 worldViewProj, \n"
" uniform float3 camPos, \n"
" uniform float fadeGap, \n"
" uniform float invisibleDist, \n"
" uniform float uScroll, \n"
" uniform float vScroll, \n"
" uniform float4 preRotatedQuad[4] ) \n"
"{ \n"
//Face the camera
" float4 vCenter = float4( position.x, position.y, position.z, 1.0f ); \n"
" float4 vScale = float4( normal.x, normal.y, normal.x, 1.0f ); \n"
" oPosition = mul( worldViewProj, vCenter + (preRotatedQuad[normal.z] * vScale) ); \n"
" oColor.rgb = color.rgb; \n"
//Fade out in the distance
" float dist = distance(camPos.xz, position.xz); \n"
" oColor.a = (invisibleDist - dist) / fadeGap; \n"
//UV scroll
" oUv = uv; \n"
" oUv.x += uScroll; \n"
" oUv.y += vScroll; \n"
//Fog
" oFog = oPosition.z; \n"
"}";
}
else // OpenGL GLSL
{
vertexProg2 =
"uniform vec3 camPos; \n"
"uniform float fadeGap; \n"
"uniform float invisibleDist; \n"
"uniform float uScroll; \n"
"uniform float vScroll; \n"
"uniform vec4 preRotatedQuad[4]; \n"
"void main() { \n"
//Face the camera
" vec4 vCenter = vec4( gl_Vertex.x, gl_Vertex.y, gl_Vertex.z, 1.0 ); \n"
" vec4 vScale = vec4( gl_Normal.x, gl_Normal.y, gl_Normal.x , 1.0 ); \n"
" gl_Position = gl_ModelViewProjectionMatrix * (vCenter + (preRotatedQuad[int(gl_Normal.z)] * vScale) ); \n"
" gl_FrontColor.xyz = gl_Color.xyz; \n"
//Fade out in the distance
" vec4 position = gl_Vertex; \n"
" float dist = distance(camPos.xz, position.xz); \n"
" gl_FrontColor.w = (invisibleDist - dist) / fadeGap; \n"
//UV scroll
" gl_TexCoord[0] = gl_MultiTexCoord0; \n"
" gl_TexCoord[0].x += uScroll; \n"
" gl_TexCoord[0].y += vScroll; \n"
//Fog
" gl_FogFragCoord = gl_Position.z; \n"
"}";
}
#if OGRE_VERSION_MAJOR <= 1
#if OGRE_VERSION_MINOR <= 8
HighLevelGpuProgramPtr vertexShader2 = HighLevelGpuProgramManager::getSingleton().getByName("SpriteFade_vp");
#else
HighLevelGpuProgramPtr vertexShader2 = HighLevelGpuProgramManager::getSingleton().getByName("SpriteFade_vp").staticCast<HighLevelGpuProgram>();
#endif
#endif
assert(vertexShader2.isNull() && "SpriteFade_vp already exist");
vertexShader2 = HighLevelGpuProgramManager::getSingleton().createProgram("SpriteFade_vp",
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, shaderLanguage, GPT_VERTEX_PROGRAM);
vertexShader2->setSource(vertexProg2);
// Set entry point. GLSL can only have one entry point "main".
if (!s_isGLSL)
{
if (shaderLanguage == "hlsl")
{
vertexShader2->setParameter("target", "vs_1_1");
vertexShader2->setParameter("entry_point", "SpriteFade_vp");
}
else if(shaderLanguage == "cg")
{
vertexShader2->setParameter("profiles", "vs_1_1 arbvp1");
vertexShader2->setParameter("entry_point", "SpriteFade_vp");
}
}
// compile it
vertexShader2->load();
}
}
else
{
//Compatible billboard method
mpFallbackBillboardSet = mgr->createBillboardSet(getUniqueID("SBS"), 100);
mpSceneNode->attachObject(mpFallbackBillboardSet);
mfUFactor = mfVFactor = Ogre::Real(0.);
}
++s_nSelfInstances;
}
void BillboardObject::init(const String& textureName,
const float initialSize,
const Vector3& position,
SceneNode* rootNode)
{
SceneManager* sceneMgr = rootNode->getCreator();
Vector3 finalPosition = position.normalisedCopy() * 1000.f;
static unsigned int bodyCount=0;
/// \todo These billboards are not 100% correct, might want to revisit them later
mBBSet = sceneMgr->createBillboardSet("SkyBillboardSet"+StringConverter::toString(bodyCount), 1);
mBBSet->setDefaultDimensions(550.f*initialSize, 550.f*initialSize);
mBBSet->setBillboardType(BBT_PERPENDICULAR_COMMON);
mBBSet->setCommonDirection( -position.normalisedCopy() );
mBBSet->setVisibilityFlags(RV_Sky);
mNode = rootNode->createChildSceneNode();
mNode->setPosition(finalPosition);
mNode->attachObject(mBBSet);
mBBSet->createBillboard(0,0,0);
mBBSet->setCastShadows(false);
mMaterial = MaterialManager::getSingleton().create("BillboardMaterial"+StringConverter::toString(bodyCount), ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
mMaterial->removeAllTechniques();
Pass* p = mMaterial->createTechnique()->createPass();
p->setSceneBlending(SBT_TRANSPARENT_ALPHA);
p->setDepthCheckEnabled(false);
p->setDepthWriteEnabled(false);
p->setSelfIllumination(1.0,1.0,1.0);
p->setDiffuse(0.0,0.0,0.0,1.0);
p->setAmbient(0.0,0.0,0.0);
p->setPolygonModeOverrideable(false);
p->createTextureUnitState(textureName);
mBBSet->setMaterialName("BillboardMaterial"+StringConverter::toString(bodyCount));
HighLevelGpuProgramManager& mgr = HighLevelGpuProgramManager::getSingleton();
HighLevelGpuProgramPtr vshader;
if (mgr.resourceExists("BBO_VP"))
vshader = mgr.getByName("BBO_VP");
else
vshader = mgr.createProgram("BBO_VP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, "cg", GPT_VERTEX_PROGRAM);
vshader->setParameter("profiles", "vs_2_x arbvp1");
vshader->setParameter("entry_point", "main_vp");
StringUtil::StrStreamType outStream;
outStream <<
"void main_vp( \n"
" float4 position : POSITION, \n"
" in float2 uv : TEXCOORD0, \n"
" out float2 oUV : TEXCOORD0, \n"
" out float4 oPosition : POSITION, \n"
" uniform float4x4 worldViewProj \n"
") \n"
"{ \n"
" oUV = uv; \n"
" oPosition = mul( worldViewProj, position ); \n"
"}";
vshader->setSource(outStream.str());
vshader->load();
vshader->getDefaultParameters()->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
mMaterial->getTechnique(0)->getPass(0)->setVertexProgram(vshader->getName());
HighLevelGpuProgramPtr fshader;
if (mgr.resourceExists("BBO_FP"))
fshader = mgr.getByName("BBO_FP");
else
fshader = mgr.createProgram("BBO_FP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, "cg", GPT_FRAGMENT_PROGRAM);
fshader->setParameter("profiles", "ps_2_x arbfp1");
fshader->setParameter("entry_point", "main_fp");
StringUtil::StrStreamType outStream2;
outStream2 <<
"void main_fp( \n"
" in float2 uv : TEXCOORD0, \n"
" out float4 oColor : COLOR, \n";
if (RenderingManager::useMRT()) outStream2 <<
" out float4 oColor1 : COLOR1, \n";
outStream2 <<
" uniform sampler2D texture : TEXUNIT0, \n"
" uniform float4 diffuse, \n"
" uniform float4 emissive \n"
") \n"
"{ \n"
" float4 tex = tex2D(texture, uv); \n"
" oColor = float4(emissive.xyz,1) * tex * float4(1,1,1,diffuse.a); \n";
if (RenderingManager::useMRT()) outStream2 <<
" oColor1 = float4(1, 0, 0, 1); \n";
outStream2 <<
"}";
fshader->setSource(outStream2.str());
fshader->load();
fshader->getDefaultParameters()->setNamedAutoConstant("diffuse", GpuProgramParameters::ACT_SURFACE_DIFFUSE_COLOUR);
fshader->getDefaultParameters()->setNamedAutoConstant("emissive", GpuProgramParameters::ACT_SURFACE_EMISSIVE_COLOUR);
mMaterial->getTechnique(0)->getPass(0)->setFragmentProgram(fshader->getName());
bodyCount++;
}
HighLevelGpuProgramPtr ParticleMaterialGenerator::createSoftParticleFragmentProgram()
{
HighLevelGpuProgramManager& mgr = HighLevelGpuProgramManager::getSingleton();
std::string progName = mDef->getName() + "_ambient_FP";
HighLevelGpuProgramPtr ret = mgr.getByName(progName);
if (!ret.isNull())
mgr.remove(progName);
ret = mgr.createProgram(progName, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_FRAGMENT_PROGRAM);
ret->setParameter("profiles", "ps_4_0 ps_3_0 ps_2_0 arbfp1");
ret->setParameter("entry_point", "main_fp");
StringUtil::StrStreamType sourceStr;
sourceStr <<
" void main_fp( in float4 iPosition : POSITION, \n"
" in float4 position : COLOR, \n"
" in float4 texCoord : TEXCOORD0, \n"
" in float4 vertexColour : TEXCOORD1, \n"
" in float4 positionScreen : TEXCOORD2, \n"
" in float4 positionWorld : TEXCOORD3, \n"
" uniform sampler2D diffuseMap : TEXUNIT0, \n";
if(MRTSupported())
{
sourceStr <<
" uniform sampler2D depthMap : TEXUNIT1, \n"
" uniform float useSoftParticles, \n";
}
sourceStr <<
" out float4 oColor : COLOR0, \n"
" uniform float3 fogColor \n";
if(MRTSupported())
{
sourceStr <<
", uniform float4 viewportSize \n"
", uniform float4 cameraPositionWorld //world space \n"
", uniform float far \n"
", uniform half flip \n";
}
sourceStr <<
") \n"
"{ \n"
" float4 diffuseTex = tex2D(diffuseMap, texCoord.xy); \n"
" float4 color1 = diffuseTex; \n"
" color1 *= vertexColour; \n"
" oColor = lerp(color1, float4(fogColor,1), position.w); \n";
if(MRTSupported())
{
sourceStr <<
" //calculate depth at the real position \n"
" positionScreen /= positionScreen.w; \n"
" float2 depthTexCoord = float2(positionScreen) * float2(0.5f, -0.5f) + float2(0.5f, 0.5f); \n"
" float2 uvOffset= (viewportSize.zw)*0.5; \n"
" depthTexCoord += uvOffset; \n"
" depthTexCoord.y =(1-saturate(flip))+flip*depthTexCoord.y; \n"
" float depth = tex2D(depthMap, depthTexCoord).x; \n"
" if(useSoftParticles > 0) \n"
" { \n"
" float distanceToPixel = length(positionWorld.xyz-cameraPositionWorld.xyz); \n"
" float thickness = 0.5;//position_scale[3] * thicknessColour[0]; \n"
" float tNear = distanceToPixel - thickness; \n"
" float tFar = distanceToPixel + thickness; \n"
" depth *= far; \n"
" float depthAlpha = saturate(depth - distanceToPixel); \n"
//these are debug values for the effect ,please don't remove
//" depthAlpha*=depthAlpha; \n"
//" //modify depth to get a good looking fog effect \n"
//" depthAlpha = log(depthAlpha) * 0.7f; \n"
//" oColor = float4(depth/20,depth/20,depth/20,1); \n"
//" oColor = float4(distanceToPixel,distanceToPixel,distanceToPixel,1); \n"
//" oColor = float4(depthAlpha,depthAlpha,depthAlpha,1); \n"
" oColor.a *=depthAlpha; \n"
" } \n";
}
sourceStr << "} \n";
ret->setSource(sourceStr.str());
ret->load();
// params
GpuProgramParametersSharedPtr params = ret->getDefaultParameters();
params->setNamedAutoConstant("fogColor", GpuProgramParameters::ACT_FOG_COLOUR);
if(MRTSupported())
{
params->setNamedAutoConstant("far", GpuProgramParameters::ACT_FAR_CLIP_DISTANCE);
params->setNamedAutoConstant("flip", GpuProgramParameters::ACT_RENDER_TARGET_FLIPPING);
//depth
params->setNamedAutoConstant("viewportSize", GpuProgramParameters::ACT_VIEWPORT_SIZE);
//depthAlpha
params->setNamedAutoConstant("cameraPositionWorld", GpuProgramParameters::ACT_CAMERA_POSITION);
}
return ret;
}
void SkyManager::create()
{
/// \todo preload all the textures and meshes that are used for sky rendering
// Create overlay used for thunderstorm
MaterialPtr material = MaterialManager::getSingleton().create( "ThunderMaterial", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME );
Pass* pass = material->getTechnique(0)->getPass(0);
pass->setSceneBlending(SBT_TRANSPARENT_ALPHA);
mThunderTextureUnit = pass->createTextureUnitState();
mThunderTextureUnit->setColourOperationEx(LBX_SOURCE1, LBS_MANUAL, LBS_CURRENT, ColourValue(1.f, 1.f, 1.f));
mThunderTextureUnit->setAlphaOperation(LBX_SOURCE1, LBS_MANUAL, LBS_CURRENT, 0.5f);
OverlayManager& ovm = OverlayManager::getSingleton();
mThunderOverlay = ovm.create( "ThunderOverlay" );
OverlayContainer* overlay_panel;
overlay_panel = (OverlayContainer*)ovm.createOverlayElement("Panel", "ThunderPanel");
overlay_panel->_setPosition(0, 0);
overlay_panel->_setDimensions(1, 1);
overlay_panel->setMaterialName( "ThunderMaterial" );
overlay_panel->show();
mThunderOverlay->add2D(overlay_panel);
mThunderOverlay->hide();
mSecunda = new Moon("textures\\tx_secunda_full.dds", 0.5, Vector3(-0.4, 0.4, 0.5), mRootNode);
mSecunda->setType(Moon::Type_Secunda);
mSecunda->setRenderQueue(RQG_SkiesEarly+4);
mMasser = new Moon("textures\\tx_masser_full.dds", 0.75, Vector3(-0.4, 0.4, 0.5), mRootNode);
mMasser->setRenderQueue(RQG_SkiesEarly+3);
mMasser->setType(Moon::Type_Masser);
mSun = new BillboardObject("textures\\tx_sun_05.dds", 1, Vector3(0.4, 0.4, 0.4), mRootNode);
mSun->setRenderQueue(RQG_SkiesEarly+4);
mSunGlare = new BillboardObject("textures\\tx_sun_flash_grey_05.dds", 3, Vector3(0.4, 0.4, 0.4), mRootNode);
mSunGlare->setRenderQueue(RQG_SkiesLate);
mSunGlare->setVisibilityFlags(RV_Glare);
HighLevelGpuProgramManager& mgr = HighLevelGpuProgramManager::getSingleton();
// Stars
/// \todo sky_night_02.nif (available in Bloodmoon)
MeshPtr mesh = NifOgre::NIFLoader::load("meshes\\sky_night_01.nif");
Entity* night1_ent = mSceneMgr->createEntity("meshes\\sky_night_01.nif");
night1_ent->setRenderQueueGroup(RQG_SkiesEarly+1);
night1_ent->setVisibilityFlags(RV_Sky);
night1_ent->setCastShadows(false);
mAtmosphereNight = mRootNode->createChildSceneNode();
mAtmosphereNight->attachObject(night1_ent);
// Stars vertex shader
HighLevelGpuProgramPtr stars_vp = mgr.createProgram("Stars_VP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_VERTEX_PROGRAM);
stars_vp->setParameter("profiles", "vs_2_x arbvp1");
stars_vp->setParameter("entry_point", "main_vp");
StringUtil::StrStreamType outStream4;
outStream4 <<
"void main_vp( \n"
" float4 position : POSITION, \n"
" in float2 uv : TEXCOORD0, \n"
" out float2 oUV : TEXCOORD0, \n"
" out float oFade : TEXCOORD1, \n"
" out float4 oPosition : POSITION, \n"
" uniform float4x4 worldViewProj \n"
") \n"
"{ \n"
" oUV = uv; \n"
" oFade = (position.z > 50) ? 1.f : 0.f; \n"
" oPosition = mul( worldViewProj, position ); \n"
"}";
stars_vp->setSource(outStream4.str());
stars_vp->load();
stars_vp->getDefaultParameters()->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
// Stars fragment shader
HighLevelGpuProgramPtr stars_fp = mgr.createProgram("Stars_FP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_FRAGMENT_PROGRAM);
stars_fp->setParameter("profiles", "ps_2_x arbfp1");
stars_fp->setParameter("entry_point", "main_fp");
StringUtil::StrStreamType outStream5;
outStream5 <<
"void main_fp( \n"
" in float2 uv : TEXCOORD0, \n"
" out float4 oColor : COLOR, \n";
if (RenderingManager::useMRT()) outStream5 <<
" out float4 oColor1 : COLOR1, \n";
outStream5 <<
" in float fade : TEXCOORD1, \n"
" uniform sampler2D texture : TEXUNIT0, \n"
" uniform float opacity, \n"
" uniform float4 diffuse, \n"
" uniform float4 emissive \n"
") \n"
"{ \n"
" oColor = tex2D(texture, uv) * float4(emissive.xyz, 1) * float4(1,1,1,fade*diffuse.a); \n";
if (RenderingManager::useMRT()) outStream5 <<
" oColor1 = float4(1, 0, 0, 1); \n";
outStream5 <<
"}";
stars_fp->setSource(outStream5.str());
stars_fp->load();
stars_fp->getDefaultParameters()->setNamedAutoConstant("emissive", GpuProgramParameters::ACT_SURFACE_EMISSIVE_COLOUR);
stars_fp->getDefaultParameters()->setNamedAutoConstant("diffuse", GpuProgramParameters::ACT_SURFACE_DIFFUSE_COLOUR);
for (unsigned int i=0; i<night1_ent->getNumSubEntities(); ++i)
{
MaterialPtr mp = night1_ent->getSubEntity(i)->getMaterial();
mp->getTechnique(0)->getPass(0)->setSelfIllumination(1.0, 1.0, 1.0);
mp->getTechnique(0)->getPass(0)->setAmbient(0.0, 0.0, 0.0);
mp->getTechnique(0)->getPass(0)->setDiffuse(0.0, 0.0, 0.0, 1.0);
mp->getTechnique(0)->getPass(0)->setDepthWriteEnabled(false);
mp->getTechnique(0)->getPass(0)->setDepthCheckEnabled(false);
mp->getTechnique(0)->getPass(0)->setSceneBlending(SBT_TRANSPARENT_ALPHA);
mp->getTechnique(0)->getPass(0)->setVertexProgram(stars_vp->getName());
mp->getTechnique(0)->getPass(0)->setFragmentProgram(stars_fp->getName());
mp->getTechnique(0)->getPass(0)->setPolygonModeOverrideable(false);
mStarsMaterials[i] = mp;
}
// Atmosphere (day)
mesh = NifOgre::NIFLoader::load("meshes\\sky_atmosphere.nif");
Entity* atmosphere_ent = mSceneMgr->createEntity("meshes\\sky_atmosphere.nif");
atmosphere_ent->setCastShadows(false);
ModVertexAlpha(atmosphere_ent, 0);
atmosphere_ent->setRenderQueueGroup(RQG_SkiesEarly);
atmosphere_ent->setVisibilityFlags(RV_Sky);
mAtmosphereDay = mRootNode->createChildSceneNode();
mAtmosphereDay->attachObject(atmosphere_ent);
mAtmosphereMaterial = atmosphere_ent->getSubEntity(0)->getMaterial();
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setPolygonModeOverrideable(false);
// Atmosphere shader
HighLevelGpuProgramPtr vshader = mgr.createProgram("Atmosphere_VP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_VERTEX_PROGRAM);
vshader->setParameter("profiles", "vs_2_x arbvp1");
vshader->setParameter("entry_point", "main_vp");
StringUtil::StrStreamType outStream;
outStream <<
"void main_vp( \n"
" float4 position : POSITION, \n"
" in float4 color : COLOR, \n"
" out float4 oPosition : POSITION, \n"
" out float4 oVertexColor : TEXCOORD0, \n"
" uniform float4x4 worldViewProj \n"
") \n"
"{ \n"
" oPosition = mul( worldViewProj, position ); \n"
" oVertexColor = color; \n"
"}";
vshader->setSource(outStream.str());
vshader->load();
vshader->getDefaultParameters()->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setVertexProgram(vshader->getName());
HighLevelGpuProgramPtr fshader = mgr.createProgram("Atmosphere_FP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_FRAGMENT_PROGRAM);
fshader->setParameter("profiles", "ps_2_x arbfp1");
fshader->setParameter("entry_point", "main_fp");
StringUtil::StrStreamType _outStream;
_outStream <<
"void main_fp( \n"
" in float4 iVertexColor : TEXCOORD0, \n"
" out float4 oColor : COLOR, \n";
if (RenderingManager::useMRT()) _outStream <<
" out float4 oColor1 : COLOR1, \n";
_outStream <<
" uniform float4 emissive \n"
") \n"
"{ \n"
" oColor = iVertexColor * emissive; \n";
if (RenderingManager::useMRT()) _outStream <<
" oColor1 = float4(1, 0, 0, 1); \n";
_outStream <<
"}";
fshader->setSource(_outStream.str());
fshader->load();
fshader->getDefaultParameters()->setNamedAutoConstant("emissive", GpuProgramParameters::ACT_SURFACE_EMISSIVE_COLOUR);
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setFragmentProgram(fshader->getName());
// Clouds
NifOgre::NIFLoader::load("meshes\\sky_clouds_01.nif");
Entity* clouds_ent = mSceneMgr->createEntity("meshes\\sky_clouds_01.nif");
clouds_ent->setVisibilityFlags(RV_Sky);
clouds_ent->setRenderQueueGroup(RQG_SkiesEarly+5);
SceneNode* clouds_node = mRootNode->createChildSceneNode();
clouds_node->attachObject(clouds_ent);
mCloudMaterial = clouds_ent->getSubEntity(0)->getMaterial();
mCloudMaterial->getTechnique(0)->getPass(0)->setPolygonModeOverrideable(false);
clouds_ent->setCastShadows(false);
// Clouds vertex shader
HighLevelGpuProgramPtr vshader2 = mgr.createProgram("Clouds_VP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_VERTEX_PROGRAM);
vshader2->setParameter("profiles", "vs_2_x arbvp1");
vshader2->setParameter("entry_point", "main_vp");
StringUtil::StrStreamType outStream3;
outStream3 <<
"void main_vp( \n"
" float4 position : POSITION, \n"
" in float4 color : COLOR, \n"
" out float4 oColor : TEXCOORD1, \n"
" in float2 uv : TEXCOORD0, \n"
" out float2 oUV : TEXCOORD0, \n"
" out float4 oPosition : POSITION, \n"
" uniform float4x4 worldViewProj \n"
") \n"
"{ \n"
" oUV = uv; \n"
" oColor = color; \n"
" oPosition = mul( worldViewProj, position ); \n"
"}";
vshader2->setSource(outStream3.str());
vshader2->load();
vshader2->getDefaultParameters()->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
mCloudMaterial->getTechnique(0)->getPass(0)->setVertexProgram(vshader2->getName());
// Clouds fragment shader
mCloudFragmentShader = mgr.createProgram("Clouds_FP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_FRAGMENT_PROGRAM);
mCloudFragmentShader->setParameter("profiles", "ps_2_x arbfp1");
mCloudFragmentShader->setParameter("entry_point", "main_fp");
StringUtil::StrStreamType outStream2;
outStream2 <<
"void main_fp( \n"
" in float2 uv : TEXCOORD0, \n"
" in float4 color : TEXCOORD1, \n"
" out float4 oColor : COLOR, \n";
if (RenderingManager::useMRT()) outStream2 <<
" out float4 oColor1 : COLOR1, \n";
outStream2 <<
" uniform sampler2D texture : TEXUNIT0, \n"
" uniform sampler2D secondTexture : TEXUNIT1, \n"
" uniform float transitionFactor, \n"
" uniform float time, \n"
" uniform float speed, \n"
" uniform float opacity, \n"
" uniform float4 emissive \n"
") \n"
"{ \n"
" uv += float2(0,1) * time * speed * 0.003; \n" // Scroll in y direction
" float4 tex = lerp(tex2D(texture, uv), tex2D(secondTexture, uv), transitionFactor); \n"
" oColor = color * float4(emissive.xyz,1) * tex * float4(1,1,1,opacity); \n";
if (RenderingManager::useMRT()) outStream2 <<
" oColor1 = float4(1, 0, 0, 1); \n";
outStream2 <<
"}";
mCloudFragmentShader->setSource(outStream2.str());
mCloudFragmentShader->load();
mCloudFragmentShader->getDefaultParameters()->setNamedAutoConstant("emissive", GpuProgramParameters::ACT_SURFACE_EMISSIVE_COLOUR);
mCloudMaterial->getTechnique(0)->getPass(0)->setFragmentProgram(mCloudFragmentShader->getName());
setCloudsOpacity(0.75);
ModVertexAlpha(clouds_ent, 1);
// I'm not sure if the materials are being used by any other objects
// Make a unique "modifiable" copy of the materials to be sure
mCloudMaterial = mCloudMaterial->clone("Clouds");
clouds_ent->getSubEntity(0)->setMaterial(mCloudMaterial);
mAtmosphereMaterial = mAtmosphereMaterial->clone("Atmosphere");
atmosphere_ent->getSubEntity(0)->setMaterial(mAtmosphereMaterial);
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setSelfIllumination(1.0, 1.0, 1.0);
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setDiffuse(0.0, 0.0, 0.0, 0.0);
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setAmbient(0.0, 0.0, 0.0);
mCloudMaterial->getTechnique(0)->getPass(0)->setSelfIllumination(1.0, 1.0, 1.0);
mCloudMaterial->getTechnique(0)->getPass(0)->setDepthWriteEnabled(false);
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setDepthWriteEnabled(false);
mAtmosphereMaterial->getTechnique(0)->getPass(0)->setSceneBlending(SBT_TRANSPARENT_ALPHA);
mCloudMaterial->getTechnique(0)->getPass(0)->setSceneBlending(SBT_TRANSPARENT_ALPHA);
mCloudMaterial->getTechnique(0)->getPass(0)->removeAllTextureUnitStates();
mCloudMaterial->getTechnique(0)->getPass(0)->createTextureUnitState("textures\\tx_sky_cloudy.dds");
mCloudMaterial->getTechnique(0)->getPass(0)->createTextureUnitState("");
mCreated = true;
}
Moon::Moon( const String& textureName,
const float initialSize,
const Vector3& position,
SceneNode* rootNode)
{
init(textureName, initialSize, position, rootNode);
HighLevelGpuProgramManager& mgr = HighLevelGpuProgramManager::getSingleton();
HighLevelGpuProgramPtr vshader;
if (mgr.resourceExists("Moon_VP"))
vshader = mgr.getByName("Moon_VP");
else
vshader = mgr.createProgram("Moon_VP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, "cg", GPT_VERTEX_PROGRAM);
vshader->setParameter("profiles", "vs_2_x arbvp1");
vshader->setParameter("entry_point", "main_vp");
StringUtil::StrStreamType outStream;
outStream <<
"void main_vp( \n"
" float4 position : POSITION, \n"
" in float2 uv : TEXCOORD0, \n"
" out float2 oUV : TEXCOORD0, \n"
" out float4 oPosition : POSITION, \n"
" uniform float4x4 worldViewProj \n"
") \n"
"{ \n"
" oUV = uv; \n"
" oPosition = mul( worldViewProj, position ); \n"
"}";
vshader->setSource(outStream.str());
vshader->load();
vshader->getDefaultParameters()->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
mMaterial->getTechnique(0)->getPass(0)->setVertexProgram(vshader->getName());
HighLevelGpuProgramPtr fshader;
if (mgr.resourceExists("Moon_FP"))
fshader = mgr.getByName("Moon_FP");
else
fshader = mgr.createProgram("Moon_FP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, "cg", GPT_FRAGMENT_PROGRAM);
fshader->setParameter("profiles", "ps_2_x arbfp1");
fshader->setParameter("entry_point", "main_fp");
StringUtil::StrStreamType outStream2;
outStream2 <<
"void main_fp( \n"
" in float2 uv : TEXCOORD0, \n"
" out float4 oColor : COLOR, \n";
if (RenderingManager::useMRT()) outStream2 <<
" out float4 oColor1 : COLOR1, \n";
outStream2 <<
" uniform sampler2D texture : TEXUNIT0, \n"
" uniform float4 skyColour, \n"
" uniform float4 diffuse, \n"
" uniform float4 emissive \n"
") \n"
"{ \n"
" float4 tex = tex2D(texture, uv); \n"
" oColor = float4(emissive.xyz,1) * tex; \n";
if (RenderingManager::useMRT()) outStream2 <<
" oColor1 = float4(1, 0, 0, 1); \n";
outStream2 <<
// use a circle for the alpha (compute UV distance to center)
// looks a bit bad because its not filtered on the edges,
// but it's cheaper than a seperate alpha texture.
" float sqrUVdist = pow(uv.x-0.5,2) + pow(uv.y-0.5, 2); \n"
" oColor.a = diffuse.a * (sqrUVdist >= 0.24 ? 0 : 1); \n"
" oColor.rgb += (1-tex.a) * oColor.a * skyColour.rgb; \n"//fill dark side of moon with skycolour
" oColor.rgb += (1-diffuse.a) * skyColour.rgb; \n"//fade bump
"}";
fshader->setSource(outStream2.str());
fshader->load();
fshader->getDefaultParameters()->setNamedAutoConstant("diffuse", GpuProgramParameters::ACT_SURFACE_DIFFUSE_COLOUR);
fshader->getDefaultParameters()->setNamedAutoConstant("emissive", GpuProgramParameters::ACT_SURFACE_EMISSIVE_COLOUR);
mMaterial->getTechnique(0)->getPass(0)->setFragmentProgram(fshader->getName());
setVisibility(1.0);
mPhase = Moon::Phase_Full;
}
//---------------------------------------------------------------------
FixedFuncPrograms * FixedFuncEmuShaderManager::_createShaderPrograms( const String & generatorName,
const VertexBufferDeclaration & vertexBufferDeclaration, FixedFuncState & fixedFuncState )
{
const String vertexProgramName = "VS";
const String fragmentProgramName = "FP";
FixedFuncEmuShaderGenerator * fixedFuncEmuShaderGenerator = mFixedFuncEmuShaderGeneratorMap[generatorName];
String shaderSource = fixedFuncEmuShaderGenerator->getShaderSource(
vertexProgramName,
fragmentProgramName,
vertexBufferDeclaration,
fixedFuncState
);
// Vertex program details
GpuProgramUsage * vertexProgramUsage = new GpuProgramUsage(GPT_VERTEX_PROGRAM);
// Fragment program details
GpuProgramUsage * fragmentProgramUsage = new GpuProgramUsage(GPT_FRAGMENT_PROGRAM);
HighLevelGpuProgramPtr vs;
HighLevelGpuProgramPtr fs;
class LoadFromSourceGpuProgram : public HighLevelGpuProgram
{
public:
void doLoadFromSource(void)
{
loadFromSource();
};
};
static size_t shaderCount = 0;
shaderCount++;
vs = HighLevelGpuProgramManager::getSingleton().
createProgram("VS_" + StringConverter::toString(shaderCount), ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
fixedFuncEmuShaderGenerator->getLanguageName(), GPT_VERTEX_PROGRAM);
vs->setSource(shaderSource);
vs->setParameter("entry_point",vertexProgramName);
vs->setParameter("target",fixedFuncEmuShaderGenerator->getVpTarget());
static_cast<LoadFromSourceGpuProgram *>(vs.get())->doLoadFromSource();
vertexProgramUsage->setProgram(GpuProgramPtr(vs));
vertexProgramUsage->setParameters(vs->createParameters());
fs = HighLevelGpuProgramManager::getSingleton().
createProgram("FS_" + StringConverter::toString(shaderCount), ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
fixedFuncEmuShaderGenerator->getLanguageName(), GPT_FRAGMENT_PROGRAM);
fs->setSource(shaderSource);
fs->setParameter("entry_point",fragmentProgramName);
fs->setParameter("target",fixedFuncEmuShaderGenerator->getFpTarget());
static_cast<LoadFromSourceGpuProgram *>(fs.get())->doLoadFromSource();
fragmentProgramUsage->setProgram(GpuProgramPtr(fs));
fragmentProgramUsage->setParameters(fs->createParameters());
FixedFuncPrograms * newPrograms = fixedFuncEmuShaderGenerator->createFixedFuncPrograms();
mLanguage2State2Declaration2ProgramsMap[generatorName][fixedFuncState][vertexBufferDeclaration] = newPrograms;
newPrograms->setVertexProgramUsage(vertexProgramUsage);
newPrograms->setFragmentProgramUsage(fragmentProgramUsage);
newPrograms->setFixedFuncState(fixedFuncState);
mProgramsToDeleteAtTheEnd.push_back(newPrograms);
return newPrograms;
}
//-----------------------------------------------------------------------------
GpuProgramPtr ProgramManager::createGpuProgram(Program* shaderProgram,
ProgramWriter* programWriter,
const String& language,
const String& profiles,
const StringVector& profilesList,
const String& cachePath)
{
#if OGRE_PLATFORM == OGRE_PLATFORM_ANDROID
Ogre::StringSerialiser sourceCodeStringStream;
#else
std::stringstream sourceCodeStringStream;
#endif
_StringHash stringHash;
uint32 programHashCode;
String programName;
// Generate source code.
programWriter->writeSourceCode(sourceCodeStringStream, shaderProgram);
// Generate program hash code.
programHashCode = static_cast<uint32>(stringHash(sourceCodeStringStream.str()));
// Generate program name.
programName = StringConverter::toString(programHashCode);
if (shaderProgram->getType() == GPT_VERTEX_PROGRAM)
{
programName += "_VS";
}
else if (shaderProgram->getType() == GPT_FRAGMENT_PROGRAM)
{
programName += "_FS";
}
HighLevelGpuProgramPtr pGpuProgram;
// Try to get program by name.
pGpuProgram = HighLevelGpuProgramManager::getSingleton().getByName(programName);
// Case the program doesn't exist yet.
if (pGpuProgram.isNull())
{
// Create new GPU program.
pGpuProgram = HighLevelGpuProgramManager::getSingleton().createProgram(programName,
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, language, shaderProgram->getType());
// Case cache directory specified -> create program from file.
if (cachePath.empty() == false)
{
const String programFullName = programName + "." + language;
const String programFileName = cachePath + programFullName;
std::ifstream programFile;
bool writeFile = true;
// Check if program file already exist.
programFile.open(programFileName.c_str());
// Case no matching file found -> we have to write it.
if (!programFile)
{
writeFile = true;
}
else
{
writeFile = false;
programFile.close();
}
// Case we have to write the program to a file.
if (writeFile)
{
std::ofstream outFile(programFileName.c_str());
if (!outFile)
return GpuProgramPtr();
outFile << sourceCodeStringStream.str();
outFile.close();
}
pGpuProgram->setSourceFile(programFullName);
}
// No cache directory specified -> create program from system memory.
else
{
pGpuProgram->setSource(sourceCodeStringStream.str());
}
pGpuProgram->setParameter("entry_point", shaderProgram->getEntryPointFunction()->getName());
// HLSL program requires specific target profile settings - we have to split the profile string.
if (language == "hlsl")
{
StringVector::const_iterator it = profilesList.begin();
StringVector::const_iterator itEnd = profilesList.end();
for (; it != itEnd; ++it)
{
if (GpuProgramManager::getSingleton().isSyntaxSupported(*it))
{
pGpuProgram->setParameter("target", *it);
break;
}
}
}
pGpuProgram->setParameter("profiles", profiles);
pGpuProgram->load();
// Case an error occurred.
if (pGpuProgram->hasCompileError())
{
pGpuProgram.setNull();
return GpuProgramPtr(pGpuProgram);
}
// Add the created GPU program to local cache.
if (pGpuProgram->getType() == GPT_VERTEX_PROGRAM)
{
mVertexShaderMap[programName] = pGpuProgram;
}
else if (pGpuProgram->getType() == GPT_FRAGMENT_PROGRAM)
{
mFragmentShaderMap[programName] = pGpuProgram;
}
}
return GpuProgramPtr(pGpuProgram);
}
//-----------------------------------------------------------------------------------
Ogre::GpuProgramPtr ShaderManager::getGpuProgram(HlmsDatablock* dataBlock)
{
Ogre::uint32 hash = dataBlock->getHash();
std::map<Ogre::uint32, Ogre::GpuProgramPtr>::iterator it = mShaderCache.find(hash);
if (it != mShaderCache.end())
{
return (*it).second;
}
else
{
Ogre::String typeStr = FilePatterns[dataBlock->getShaderType()];
std::stringstream sstream;
sstream << std::hex << hash;
std::string hashString = sstream.str();
Ogre::String name = hashString + typeStr;
// generate the shader code
Ogre::String code = dataBlock->getTemplate()->getTemplate();
code = ShaderGenerator::parse(code, *(dataBlock->getPropertyMap()), mShaderPiecesManager->getPieces(dataBlock->getLanguarge(), dataBlock->getShaderType()));
HighLevelGpuProgramPtr gpuProgram = Ogre::HighLevelGpuProgramManager::getSingleton().createProgram(name,
Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, dataBlock->getLanguarge(), dataBlock->getShaderType());
gpuProgram->setSource(code);
gpuProgram->setParameter("entry_point", "main");
if (dataBlock->getLanguarge() == "hlsl")
{
// HLSL program requires specific target profile settings - we have to split the profile string.
const Ogre::StringVector& profilesList = dataBlock->getProfileList();
Ogre::StringVector::const_iterator it = profilesList.begin();
Ogre::StringVector::const_iterator itEnd = profilesList.end();
for (; it != itEnd; ++it)
{
if (Ogre::GpuProgramManager::getSingleton().isSyntaxSupported(*it))
{
gpuProgram->setParameter("target", *it);
break;
}
}
//gpuProgram->setParameter("enable_backwards_compatibility", "false");
//gpuProgram->setParameter("column_major_matrices", Ogre::StringConverter::toString(shaderProgram->getUseColumnMajorMatrices()));
}
//gpuProgram->setParameter("profiles", profiles);
gpuProgram->load();
// Case an error occurred.
if (gpuProgram->hasCompileError())
{
gpuProgram.setNull();
return Ogre::GpuProgramPtr(gpuProgram);
}
mShaderCache[hash] = gpuProgram;
return gpuProgram;
}
}
//---------------------------------------------------------------------
//---------------------------------------------------------------------
void ShadowVolumeExtrudeProgram::initialise(void)
{
if (!mInitialised)
{
String syntax;
bool vertexProgramFinite[OGRE_NUM_SHADOW_EXTRUDER_PROGRAMS] =
{
false, false, false, false,
true, true, true, true
};
bool vertexProgramDebug[OGRE_NUM_SHADOW_EXTRUDER_PROGRAMS] =
{
false, true, false, true,
false, true, false, true
};
Light::LightTypes vertexProgramLightTypes[OGRE_NUM_SHADOW_EXTRUDER_PROGRAMS] =
{
Light::LT_POINT, Light::LT_POINT,
Light::LT_DIRECTIONAL, Light::LT_DIRECTIONAL,
Light::LT_POINT, Light::LT_POINT,
Light::LT_DIRECTIONAL, Light::LT_DIRECTIONAL
};
// load hardware extrusion programs for point & dir lights
if (GpuProgramManager::getSingleton().isSyntaxSupported("arbvp1"))
{
// ARBvp1
syntax = "arbvp1";
}
else if (GpuProgramManager::getSingleton().isSyntaxSupported("vs_1_1"))
{
syntax = "vs_1_1";
}
else if (GpuProgramManager::getSingleton().isSyntaxSupported("vs_4_0"))
{
syntax = "vs_4_0";
}
else
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Vertex programs are supposedly supported, but neither "
"arbvp1, vs_1_1 nor vs_4_0 syntaxes are present.",
"SceneManager::initShadowVolumeMaterials");
}
// Create all programs
for (unsigned short v = 0; v < OGRE_NUM_SHADOW_EXTRUDER_PROGRAMS; ++v)
{
// Create debug extruders
if (GpuProgramManager::getSingleton().getByName(
programNames[v]).isNull())
{
if (syntax == "vs_4_0")
{
HighLevelGpuProgramPtr vp =
HighLevelGpuProgramManager::getSingleton().createProgram(
programNames[v], ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME,
"hlsl", GPT_VERTEX_PROGRAM);
vp->setSource(ShadowVolumeExtrudeProgram::getProgramSource(
vertexProgramLightTypes[v], syntax,
vertexProgramFinite[v], vertexProgramDebug[v]));
vp->setParameter("target", syntax);
vp->setParameter("entry_point", "vs_main");
vp->load();
if (frgProgramName.empty())
{
frgProgramName = "Ogre/ShadowFrgProgram";
HighLevelGpuProgramPtr fp =
HighLevelGpuProgramManager::getSingleton().createProgram(
frgProgramName, ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME,
"hlsl", GPT_FRAGMENT_PROGRAM);
fp->setSource(mGeneralFs_4_0);
fp->setParameter("target", "ps_4_0");
fp->setParameter("entry_point", "fs_main");
fp->load();
}
}
else
{
GpuProgramPtr vp =
GpuProgramManager::getSingleton().createProgramFromString(
programNames[v], ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME,
ShadowVolumeExtrudeProgram::getProgramSource(
vertexProgramLightTypes[v], syntax,
vertexProgramFinite[v], vertexProgramDebug[v]),
GPT_VERTEX_PROGRAM, syntax);
vp->load();
}
}
}
mInitialised = true;
}
}
//---------------------------------------------------------------------
void TerrainMaterialGeneratorA::SM2Profile::addTechnique(
const MaterialPtr& mat, const Terrain* terrain, TechniqueType tt)
{
Technique* tech = mat->createTechnique();
// Only supporting one pass
Pass* pass = tech->createPass();
GpuProgramManager& gmgr = GpuProgramManager::getSingleton();
HighLevelGpuProgramManager& hmgr = HighLevelGpuProgramManager::getSingleton();
if (!mShaderGen)
{
bool check2x = mLayerNormalMappingEnabled || mLayerParallaxMappingEnabled;
if (hmgr.isLanguageSupported("cg"))
{
mShaderGen = OGRE_NEW ShaderHelperCg();
}
else if (hmgr.isLanguageSupported("hlsl") &&
((check2x && gmgr.isSyntaxSupported("ps_4_0")) ||
(check2x && gmgr.isSyntaxSupported("ps_2_x")) ||
(!check2x && gmgr.isSyntaxSupported("ps_2_0"))))
{
mShaderGen = OGRE_NEW ShaderHelperHLSL();
}
else if (hmgr.isLanguageSupported("glsl"))
{
mShaderGen = OGRE_NEW ShaderHelperGLSL();
}
else if (hmgr.isLanguageSupported("glsles"))
{
mShaderGen = OGRE_NEW ShaderHelperGLSLES();
}
// check SM3 features
mSM3Available = GpuProgramManager::getSingleton().isSyntaxSupported("ps_3_0");
mSM4Available = GpuProgramManager::getSingleton().isSyntaxSupported("ps_4_0");
}
HighLevelGpuProgramPtr vprog = mShaderGen->generateVertexProgram(this, terrain, tt);
HighLevelGpuProgramPtr fprog = mShaderGen->generateFragmentProgram(this, terrain, tt);
pass->setVertexProgram(vprog->getName());
pass->setFragmentProgram(fprog->getName());
if (tt == HIGH_LOD || tt == RENDER_COMPOSITE_MAP)
{
// global normal map
TextureUnitState* tu = pass->createTextureUnitState();
tu->setTextureName(terrain->getTerrainNormalMap()->getName());
tu->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
// global colour map
if (terrain->getGlobalColourMapEnabled() && isGlobalColourMapEnabled())
{
tu = pass->createTextureUnitState(terrain->getGlobalColourMap()->getName());
tu->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
}
// light map
if (isLightmapEnabled())
{
tu = pass->createTextureUnitState(terrain->getLightmap()->getName());
tu->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
}
// blend maps
uint maxLayers = getMaxLayers(terrain);
uint numBlendTextures = std::min(terrain->getBlendTextureCount(maxLayers), terrain->getBlendTextureCount());
uint numLayers = std::min(maxLayers, static_cast<uint>(terrain->getLayerCount()));
for (uint i = 0; i < numBlendTextures; ++i)
{
tu = pass->createTextureUnitState(terrain->getBlendTextureName(i));
tu->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
}
// layer textures
for (uint i = 0; i < numLayers; ++i)
{
// diffuse / specular
pass->createTextureUnitState(terrain->getLayerTextureName(i, 0));
// normal / height
pass->createTextureUnitState(terrain->getLayerTextureName(i, 1));
}
}
else
{
// LOW_LOD textures
// composite map
TextureUnitState* tu = pass->createTextureUnitState();
tu->setTextureName(terrain->getCompositeMap()->getName());
tu->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
// That's it!
}
// Add shadow textures (always at the end)
if (isShadowingEnabled(tt, terrain))
{
uint numTextures = 1;
if (getReceiveDynamicShadowsPSSM())
{
numTextures = (uint)getReceiveDynamicShadowsPSSM()->getSplitCount();
}
for (uint i = 0; i < numTextures; ++i)
{
TextureUnitState* tu = pass->createTextureUnitState();
tu->setContentType(TextureUnitState::CONTENT_SHADOW);
tu->setTextureAddressingMode(TextureUnitState::TAM_BORDER);
tu->setTextureBorderColour(ColourValue::White);
}
}
}
void GrassLayer::_updateShaders()
{
if (shaderNeedsUpdate){
shaderNeedsUpdate = false;
//Proceed only if there is no custom vertex shader and the user's computer supports vertex shaders
const RenderSystemCapabilities *caps = Root::getSingleton().getRenderSystem()->getCapabilities();
if (caps->hasCapability(RSC_VERTEX_PROGRAM) && geom->getShadersEnabled())
{
//Calculate fade range
float farViewDist = geom->getDetailLevels().front()->getFarRange();
float fadeRange = farViewDist / 1.2247449f;
//Note: 1.2247449 ~= sqrt(1.5), which is necessary since the far view distance is measured from the centers
//of pages, while the vertex shader needs to fade grass completely out (including the closest corner)
//before the page center is out of range.
//Generate a string ID that identifies the current set of vertex shader options
StringUtil::StrStreamType tmpName;
tmpName << "GrassVS_";
if (animate)
tmpName << "anim_";
if (blend)
tmpName << "blend_";
if (lighting)
tmpName << "lighting_";
tmpName << renderTechnique << "_";
tmpName << fadeTechnique << "_";
if (fadeTechnique == FADETECH_GROW || fadeTechnique == FADETECH_ALPHAGROW)
tmpName << maxHeight << "_";
tmpName << farViewDist << "_";
tmpName << "vp";
const String vsName = tmpName.str();
//Generate a string ID that identifies the material combined with the vertex shader
const String matName = material->getName() + "_" + vsName;
//Check if the desired material already exists (if not, create it)
MaterialPtr tmpMat = MaterialManager::getSingleton().getByName(matName);
if (tmpMat.isNull())
{
//Clone the original material
tmpMat = material->clone(matName);
//Disable lighting
tmpMat->setLightingEnabled(false);
//tmpMat->setReceiveShadows(false);
//Check if the desired shader already exists (if not, compile it)
String shaderLanguage;
HighLevelGpuProgramPtr vertexShader = HighLevelGpuProgramManager::getSingleton().getByName(vsName);
if (vertexShader.isNull())
{
if (Root::getSingleton().getRenderSystem()->getName() == "Direct3D9 Rendering Subsystem")
shaderLanguage = "hlsl";
else if(Root::getSingleton().getRenderSystem()->getName() == "OpenGL Rendering Subsystem")
shaderLanguage = "glsl";
else
shaderLanguage = "cg";
//Generate the grass shader
String vertexProgSource;
if(!shaderLanguage.compare("hlsl") || !shaderLanguage.compare("cg"))
{
vertexProgSource =
"void main( \n"
" float4 iPosition : POSITION, \n"
" float4 iColor : COLOR, \n"
" float2 iUV : TEXCOORD0, \n"
" out float4 oPosition : POSITION, \n"
" out float4 oColor : COLOR, \n"
" out float2 oUV : TEXCOORD0, \n";
if (lighting) vertexProgSource +=
" uniform float4 objSpaceLight, \n"
" uniform float4 lightDiffuse, \n"
" uniform float4 lightAmbient, \n";
if (animate) vertexProgSource +=
" uniform float time, \n"
" uniform float frequency, \n"
" uniform float4 direction, \n";
if (fadeTechnique == FADETECH_GROW || fadeTechnique == FADETECH_ALPHAGROW) vertexProgSource +=
" uniform float grassHeight, \n";
if (renderTechnique == GRASSTECH_SPRITE || lighting) vertexProgSource +=
" float4 iNormal : NORMAL, \n";
vertexProgSource +=
" uniform float4x4 worldViewProj, \n"
" uniform float3 camPos, \n"
" uniform float fadeRange ) \n"
"{ \n"
" oColor.rgb = iColor.rgb; \n"
" float4 position = iPosition; \n"
" float dist = distance(camPos.xz, position.xz); \n";
if (lighting)
{
vertexProgSource +=
" float3 light = normalize(objSpaceLight.xyz - (iPosition.xyz * objSpaceLight.w)); \n"
" float diffuseFactor = max(dot(float4(0,1,0,0), light), 0); \n"
" oColor = (lightAmbient + diffuseFactor * lightDiffuse) * iColor; \n";
}
else
{
vertexProgSource +=
" oColor.rgb = iColor.rgb; \n";
}
if (fadeTechnique == FADETECH_ALPHA || fadeTechnique == FADETECH_ALPHAGROW) vertexProgSource +=
//Fade out in the distance
" oColor.a = 2.0f - (2.0f * dist / fadeRange); \n";
else vertexProgSource +=
" oColor.a = 1.0f; \n";
vertexProgSource +=
" float oldposx = position.x; \n";
if (renderTechnique == GRASSTECH_SPRITE) vertexProgSource +=
//Face the camera
" float3 dirVec = (float3)position - (float3)camPos; \n"
" float3 p = normalize(cross(float4(0,1,0,0), dirVec)); \n"
" position += float4(p.x * iNormal.x, iNormal.y, p.z * iNormal.x, 0); \n";
if (animate) vertexProgSource +=
" if (iUV.y == 0.0f){ \n"
//Wave grass in breeze
" float offset = sin(time + oldposx * frequency); \n"
" position += direction * offset; \n"
" } \n";
if (blend && animate) vertexProgSource +=
" else { \n";
else if (blend) vertexProgSource +=
" if (iUV.y != 0.0f){ \n";
if (blend) vertexProgSource +=
//Blend the base of nearby grass into the terrain
" oColor.a = clamp(oColor.a, 0, 1) * 4.0f * ((dist / fadeRange) - 0.1f); \n"
" } \n";
if (fadeTechnique == FADETECH_GROW || fadeTechnique == FADETECH_ALPHAGROW) vertexProgSource +=
" float offset = (2.0f * dist / fadeRange) - 1.0f; \n"
" position.y -= grassHeight * clamp(offset, 0, 1); ";
vertexProgSource +=
" oPosition = mul(worldViewProj, position); \n";
vertexProgSource +=
" oUV = iUV;\n"
"}";
}
else
{
//Must be glsl
if (lighting)
{
vertexProgSource =
"uniform vec4 objSpaceLight; \n"
"uniform vec4 lightDiffuse; \n"
"uniform vec4 lightAmbient; \n";
}
if (animate)
{
vertexProgSource +=
"uniform float time; \n"
"uniform float frequency; \n"
"uniform vec4 direction; \n";
}
if (fadeTechnique == FADETECH_GROW || fadeTechnique == FADETECH_ALPHAGROW)
{
vertexProgSource +=
"uniform float grassHeight; \n";
}
vertexProgSource +=
"uniform vec3 camPos; \n"
"uniform float fadeRange; \n"
"\n"
"void main()"
"{ \n"
" vec4 color = gl_Color; \n"
" vec4 position = gl_Vertex; \n"
" float dist = distance(camPos.xz, position.xz); \n";
if (lighting)
{
vertexProgSource +=
" vec3 light = normalize(objSpaceLight.xyz - (gl_Vertex.xyz * objSpaceLight.w)); \n"
" float diffuseFactor = max( dot( vec3(0.0,1.0,0.0), light), 0.0); \n"
" color = (lightAmbient + diffuseFactor * lightDiffuse) * gl_Color; \n";
}
else
{
vertexProgSource +=
" color.xyz = gl_Color.xyz; \n";
}
if (fadeTechnique == FADETECH_ALPHA || fadeTechnique == FADETECH_ALPHAGROW)
{
vertexProgSource +=
//Fade out in the distance
" color.w = 2.0 - (2.0 * dist / fadeRange); \n";
}
else
{
vertexProgSource +=
" color.w = 1.0; \n";
}
if (renderTechnique == GRASSTECH_SPRITE)
{
vertexProgSource +=
//Face the camera
" vec3 dirVec = position.xyz - camPos.xyz; \n"
" vec3 p = normalize(cross(vec3(0.0,1.0,0.0), dirVec)); \n"
" position += vec4(p.x * gl_Normal.x, gl_Normal.y, p.z * gl_Normal.x, 0.0); \n";
}
if (animate)
{
vertexProgSource +=
" if (gl_MultiTexCoord0.y == 0.0) \n"
" { \n"
//Wave grass in breeze
" position += direction * sin(time + gl_Vertex.x * frequency); \n"
" } \n";
}
if (blend && animate)
{
vertexProgSource +=
" else \n"
" { \n";
}
else if (blend)
{
vertexProgSource +=
" if (gl_MultiTexCoord0.y != 0.0) \n"
" { \n";
}
if (blend)
{
vertexProgSource +=
//Blend the base of nearby grass into the terrain
" color.w = clamp(color.w, 0.0, 1.0) * 4.0 * ((dist / fadeRange) - 0.1); \n"
" } \n";
}
if (fadeTechnique == FADETECH_GROW || fadeTechnique == FADETECH_ALPHAGROW)
{
vertexProgSource +=
" position.y -= grassHeight * clamp((2.0 * dist / fadeRange) - 1.0, 0.0, 1.0); \n";
}
vertexProgSource +=
" gl_Position = gl_ModelViewProjectionMatrix * position; \n"
" gl_FrontColor = color; \n"
" gl_TexCoord[0] = gl_MultiTexCoord0; \n"
" gl_FogFragCoord = gl_Position.z; \n"
"}";
}
vertexShader = HighLevelGpuProgramManager::getSingleton().createProgram(
vsName,
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();
}
//Now the vertex shader (vertexShader) has either been found or just generated
//(depending on whether or not it was already generated).
//Apply the shader to the material
Pass *pass = tmpMat->getTechnique(0)->getPass(0);
pass->setVertexProgram(vsName);
GpuProgramParametersSharedPtr params = pass->getVertexProgramParameters();
if(shaderLanguage.compare("glsl"))
//glsl can use the built in gl_ModelViewProjectionMatrix
params->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
params->setNamedAutoConstant("camPos", GpuProgramParameters::ACT_CAMERA_POSITION_OBJECT_SPACE);
params->setNamedAutoConstant("fadeRange", GpuProgramParameters::ACT_CUSTOM, 1);
if (animate){
params->setNamedAutoConstant("time", GpuProgramParameters::ACT_CUSTOM, 1);
params->setNamedAutoConstant("frequency", GpuProgramParameters::ACT_CUSTOM, 1);
params->setNamedAutoConstant("direction", GpuProgramParameters::ACT_CUSTOM, 4);
}
if (lighting){
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);
}
if (fadeTechnique == FADETECH_GROW || fadeTechnique == FADETECH_ALPHAGROW){
params->setNamedAutoConstant("grassHeight", GpuProgramParameters::ACT_CUSTOM, 1);
params->setNamedConstant("grassHeight", maxHeight * 1.05f);
}
pass->getVertexProgramParameters()->setNamedConstant("fadeRange", fadeRange);
}
//Now the material (tmpMat) has either been found or just created (depending on whether or not it was already
//created). The appropriate vertex shader should be applied and the material is ready for use.
//Apply the new material
material = tmpMat;
}
}
}
void ImpostorMaterialGenerator::generate()
{
//!
// note that we only create the shaders (Sprite_vp, Sprite_fp) here.
// the rest (material creation, shader parameters, ...) is done by paged-geom for convenience.
HighLevelGpuProgramManager& mgr = HighLevelGpuProgramManager::getSingleton();
// ---------------- VERTEX -----------------------------------------------
// ensure shader does not exist already.
HighLevelGpuProgramPtr vshader = mgr.getByName("Sprite_vp");
if (vshader.isNull())
{
vshader = mgr.createProgram("Sprite_vp", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_VERTEX_PROGRAM);
if(MRTSupported())
{
vshader->setParameter("profiles", "vs_4_0 vs_3_0 vp40");
}
else
{
vshader->setParameter("profiles", "vs_4_0 vs_2_x arbvp1");
}
vshader->setParameter("entry_point", "Sprite_vp");
StringUtil::StrStreamType outStream;
outStream <<
"void Sprite_vp( \n"
" float4 position : POSITION, \n"
" float3 normal : NORMAL, \n"
" float4 color : COLOR, \n"
" float2 uv : TEXCOORD0, \n"
" out float4 oPosition : POSITION, \n"
" out float2 oUv : TEXCOORD0, \n"
" out float4 oColor : COLOR, \n"
" out float oFog : TEXCOORD1, \n"
" uniform float4 fogParams, \n"
" uniform float4x4 worldViewProj, \n"
" uniform float uScroll, \n"
" uniform float vScroll, \n"
" uniform float4 preRotatedQuad[4] ) \n"
"{ \n"
//Face the camera
" float4 vCenter = float4( position.x, position.y, position.z, 1.0f ); \n"
" float4 vScale = float4( normal.x, normal.y, normal.x, 1.0f ); \n"
" oPosition = mul( worldViewProj, vCenter + (preRotatedQuad[normal.z] * vScale) ); \n"
//Color
" oColor = color; \n"
//UV Scroll
" oUv = uv; \n"
" oUv.x += uScroll; \n"
" oUv.y += vScroll; \n"
//Fog
" oFog = saturate(fogParams.x * (oPosition.z - fogParams.y) * fogParams.w); \n"
"}";
vshader->setSource(outStream.str());
vshader->load();
vshader->getDefaultParameters()->setNamedAutoConstant("fogParams", GpuProgramParameters::ACT_FOG_PARAMS);
}
// ------------- FRAGMENT -----------------------------------------------
// ensure shader does not exist already.
HighLevelGpuProgramPtr fshader = mgr.getByName("Sprite_fp");
if (fshader.isNull())
{
fshader = mgr.createProgram("Sprite_fp", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", GPT_FRAGMENT_PROGRAM);
if(MRTSupported())
{
fshader->setParameter("profiles", "ps_4_0 ps_3_0 fp40");
}
else
{
fshader->setParameter("profiles", "ps_4_0 ps_2_x arbfp1");
}
fshader->setParameter("entry_point", "Sprite_fp");
// simple pixel shader that only reads texture and fog
StringUtil::StrStreamType outStream;
outStream <<
"void Sprite_fp( \n"
" uniform sampler2D texture, \n"
" float4 iPosition : POSITION, \n"
" float2 texCoord : TEXCOORD0, \n"
" float4 iColor : COLOR, \n"
" float fog : TEXCOORD1, \n"
" uniform float4 fogColor, \n"
" out float4 oColor : COLOR \n"
") \n"
"{ \n"
" float4 texColor = tex2D(texture, texCoord); \n"
" oColor = float4(lerp(texColor.xyz, fogColor.xyz, fog), texColor.a); \n"
" clip( oColor.a > 0.0f ? 1:-1); \n"
"} \n";
fshader->setSource(outStream.str());
fshader->load();
fshader->getDefaultParameters()->setNamedAutoConstant("fogColor", GpuProgramParameters::ACT_FOG_COLOUR);
}
}
