void OgreImGui::createMaterial()
{
static const char* vertexShaderSrcD3D11 =
{
"cbuffer vertexBuffer : register(b0) \n"
"{\n"
"float4x4 ProjectionMatrix; \n"
"};\n"
"struct VS_INPUT\n"
"{\n"
"float2 pos : POSITION;\n"
"float4 col : COLOR0;\n"
"float2 uv : TEXCOORD0;\n"
"};\n"
"struct PS_INPUT\n"
"{\n"
"float4 pos : SV_POSITION;\n"
"float4 col : COLOR0;\n"
"float2 uv : TEXCOORD0;\n"
"};\n"
"PS_INPUT main(VS_INPUT input)\n"
"{\n"
"PS_INPUT output;\n"
"output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\n"
"output.col = input.col;\n"
"output.uv = input.uv;\n"
"return output;\n"
"}"
};
static const char* pixelShaderSrcD3D11 =
{
"struct PS_INPUT\n"
"{\n"
"float4 pos : SV_POSITION;\n"
"float4 col : COLOR0;\n"
"float2 uv : TEXCOORD0;\n"
"};\n"
"sampler sampler0;\n"
"Texture2D texture0;\n"
"\n"
"float4 main(PS_INPUT input) : SV_Target\n"
"{\n"
"float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \n"
"return out_col; \n"
"}"
};
static const char* vertexShaderSrcD3D9 =
{
"uniform float4x4 ProjectionMatrix; \n"
"struct VS_INPUT\n"
"{\n"
"float2 pos : POSITION;\n"
"float4 col : COLOR0;\n"
"float2 uv : TEXCOORD0;\n"
"};\n"
"struct PS_INPUT\n"
"{\n"
"float4 pos : POSITION;\n"
"float4 col : COLOR0;\n"
"float2 uv : TEXCOORD0;\n"
"};\n"
"PS_INPUT main(VS_INPUT input)\n"
"{\n"
"PS_INPUT output;\n"
"output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\n"
"output.col = input.col;\n"
"output.uv = input.uv;\n"
"return output;\n"
"}"
};
static const char* pixelShaderSrcSrcD3D9 =
{
"struct PS_INPUT\n"
"{\n"
"float4 pos : SV_POSITION;\n"
"float4 col : COLOR0;\n"
"float2 uv : TEXCOORD0;\n"
"};\n"
"sampler2D sampler0;\n"
"\n"
"float4 main(PS_INPUT input) : SV_Target\n"
"{\n"
"float4 out_col = input.col.bgra * tex2D(sampler0, input.uv); \n"
"return out_col; \n"
"}"
};
static const char* vertexShaderSrcGLSL =
{ // See https://www.khronos.org/opengl/wiki/Core_Language_(GLSL)#OpenGL_and_GLSL_versions
"#version 130\n"
"uniform mat4 ProjectionMatrix; \n"
"in vec2 vertex;\n"
"in vec2 uv0;\n"
"in vec4 colour;\n"
"out vec2 Texcoord;\n"
"out vec4 col;\n"
"void main()\n"
"{\n"
"gl_Position = ProjectionMatrix* vec4(vertex.xy, 0.f, 1.f);\n"
"Texcoord = uv0;\n"
"col = colour;\n"
"}"
};
static const char* pixelShaderSrcGLSL =
{ // See https://www.khronos.org/opengl/wiki/Core_Language_(GLSL)#OpenGL_and_GLSL_versions
"#version 130\n"
"in vec2 Texcoord;\n"
"in vec4 col;\n"
"uniform sampler2D sampler0;\n"
"out vec4 out_col;\n"
"void main()\n"
"{\n"
"out_col = col * texture(sampler0, Texcoord); \n"
"}"
};
//create the default shadows material
Ogre::HighLevelGpuProgramManager& mgr = Ogre::HighLevelGpuProgramManager::getSingleton();
Ogre::HighLevelGpuProgramPtr vertexShaderUnified = mgr.getByName("imgui/VP");
Ogre::HighLevelGpuProgramPtr pixelShaderUnified = mgr.getByName("imgui/FP");
Ogre::HighLevelGpuProgramPtr vertexShaderD3D11 = mgr.getByName("imgui/VP/D3D11");
Ogre::HighLevelGpuProgramPtr pixelShaderD3D11 = mgr.getByName("imgui/FP/D3D11");
Ogre::HighLevelGpuProgramPtr vertexShaderD3D9 = mgr.getByName("imgui/VP/D3D9");
Ogre::HighLevelGpuProgramPtr pixelShaderD3D9 = mgr.getByName("imgui/FP/D3D9");
Ogre::HighLevelGpuProgramPtr vertexShaderGL = mgr.getByName("imgui/VP/GL130");
Ogre::HighLevelGpuProgramPtr pixelShaderGL = mgr.getByName("imgui/FP/GL130");
if (vertexShaderUnified.isNull())
{
vertexShaderUnified = mgr.createProgram("imgui/VP",Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,"unified",Ogre::GPT_VERTEX_PROGRAM);
}
if (pixelShaderUnified.isNull())
{
pixelShaderUnified = mgr.createProgram("imgui/FP",Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,"unified",Ogre::GPT_FRAGMENT_PROGRAM);
}
Ogre::UnifiedHighLevelGpuProgram* vertexShaderPtr = static_cast<Ogre::UnifiedHighLevelGpuProgram*>(vertexShaderUnified.get());
Ogre::UnifiedHighLevelGpuProgram* pixelShaderPtr = static_cast<Ogre::UnifiedHighLevelGpuProgram*>(pixelShaderUnified.get());
if (vertexShaderD3D11.isNull())
{
vertexShaderD3D11 = mgr.createProgram("imgui/VP/D3D11", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"hlsl", Ogre::GPT_VERTEX_PROGRAM);
vertexShaderD3D11->setParameter("target", "vs_4_0");
vertexShaderD3D11->setParameter("entry_point", "main");
vertexShaderD3D11->setSource(vertexShaderSrcD3D11);
vertexShaderD3D11->load();
vertexShaderPtr->addDelegateProgram(vertexShaderD3D11->getName());
}
if (pixelShaderD3D11.isNull())
{
pixelShaderD3D11 = mgr.createProgram("imgui/FP/D3D11", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"hlsl", Ogre::GPT_FRAGMENT_PROGRAM);
pixelShaderD3D11->setParameter("target", "ps_4_0");
pixelShaderD3D11->setParameter("entry_point", "main");
pixelShaderD3D11->setSource(pixelShaderSrcD3D11);
pixelShaderD3D11->load();
pixelShaderPtr->addDelegateProgram(pixelShaderD3D11->getName());
}
if (vertexShaderD3D9.isNull())
{
vertexShaderD3D9 = mgr.createProgram("imgui/VP/D3D9", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"hlsl", Ogre::GPT_VERTEX_PROGRAM);
vertexShaderD3D9->setParameter("target", "vs_2_0");
vertexShaderD3D9->setParameter("entry_point", "main");
vertexShaderD3D9->setSource(vertexShaderSrcD3D9);
vertexShaderD3D9->load();
vertexShaderPtr->addDelegateProgram(vertexShaderD3D9->getName());
}
if (pixelShaderD3D9.isNull())
{
pixelShaderD3D9 = mgr.createProgram("imgui/FP/D3D9", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"hlsl", Ogre::GPT_FRAGMENT_PROGRAM);
pixelShaderD3D9->setParameter("target", "ps_2_0");
pixelShaderD3D9->setParameter("entry_point", "main");
pixelShaderD3D9->setSource(pixelShaderSrcSrcD3D9);
pixelShaderD3D9->load();
pixelShaderPtr->addDelegateProgram(pixelShaderD3D9->getName());
}
if (vertexShaderGL.isNull())
{
vertexShaderGL = mgr.createProgram("imgui/VP/GL130", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"glsl", Ogre::GPT_VERTEX_PROGRAM);
vertexShaderGL->setSource(vertexShaderSrcGLSL);
vertexShaderGL->load();
vertexShaderPtr->addDelegateProgram(vertexShaderGL->getName());
}
if (pixelShaderGL.isNull())
{
pixelShaderGL = mgr.createProgram("imgui/FP/GL130", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"glsl", Ogre::GPT_FRAGMENT_PROGRAM);
pixelShaderGL->setSource(pixelShaderSrcGLSL);
pixelShaderGL->load();
pixelShaderGL->setParameter("sampler0","int 0");
pixelShaderPtr->addDelegateProgram(pixelShaderGL->getName());
}
Ogre::MaterialPtr imguiMaterial = Ogre::MaterialManager::getSingleton().create("imgui/material", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
mPass = imguiMaterial->getTechnique(0)->getPass(0);
mPass->setFragmentProgram("imgui/FP");
mPass->setVertexProgram("imgui/VP");
mPass->setCullingMode(Ogre::CULL_NONE);
mPass->setDepthFunction(Ogre::CMPF_ALWAYS_PASS);
mPass->setLightingEnabled(false);
mPass->setSceneBlending(Ogre::SBT_TRANSPARENT_ALPHA);
mPass->setSeparateSceneBlendingOperation(Ogre::SBO_ADD,Ogre::SBO_ADD);
mPass->setSeparateSceneBlending(Ogre::SBF_SOURCE_ALPHA,Ogre::SBF_ONE_MINUS_SOURCE_ALPHA,Ogre::SBF_ONE_MINUS_SOURCE_ALPHA,Ogre::SBF_ZERO);
mPass->createTextureUnitState()->setTextureName("ImguiFontTex");
}
Ogre::GpuProgramPtr GBufferMaterialGeneratorImpl::generateVertexShader(MaterialGenerator::Perm permutation)
{
Ogre::StringStream ss;
ss << "void ToGBufferVP(" << std::endl;
ss << " float4 iPosition : POSITION," << std::endl;
ss << " float3 iNormal : NORMAL," << std::endl;
Ogre::uint32 numTexCoords = (permutation & GBufferMaterialGenerator::GBP_TEXCOORD_MASK) >> 8;
for (Ogre::uint32 i=0; i<numTexCoords; i++)
{
ss << " float2 iUV" << i << " : TEXCOORD" << i << ',' << std::endl;
}
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << " float3 iTangent : TANGENT0," << std::endl;
}
//TODO : Skinning inputs
ss << std::endl;
ss << " out float4 oPosition : POSITION," << std::endl;
#ifdef WRITE_LINEAR_DEPTH
ss << " out float3 oViewPos : TEXCOORD0," << std::endl;
#else
ss << " out float oDepth : TEXCOORD0," << std::endl;
#endif
ss << " out float3 oNormal : TEXCOORD1," << std::endl;
int texCoordNum = 2;
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << " out float3 oTangent : TEXCOORD" << texCoordNum++ << ',' << std::endl;
ss << " out float3 oBiNormal : TEXCOORD" << texCoordNum++ << ',' << std::endl;
}
for (Ogre::uint32 i=0; i<numTexCoords; i++)
{
ss << " out float2 oUV" << i << " : TEXCOORD" << texCoordNum++ << ',' << std::endl;
}
ss << std::endl;
ss << " uniform float4x4 cWorldViewProj," << std::endl;
ss << " uniform float4x4 cWorldView" << std::endl;
ss << " )" << std::endl;
ss << "{" << std::endl;
ss << " oPosition = mul(cWorldViewProj, iPosition);" << std::endl;
ss << " oNormal = mul(cWorldView, float4(iNormal,0)).xyz;" << std::endl;
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << " oTangent = mul(cWorldView, float4(iTangent,0)).xyz;" << std::endl;
ss << " oBiNormal = cross(oNormal, oTangent);" << std::endl;
}
#ifdef WRITE_LINEAR_DEPTH
ss << " oViewPos = mul(cWorldView, iPosition).xyz;" << std::endl;
#else
ss << " oDepth = oPosition.w;" << std::endl;
#endif
for (Ogre::uint32 i=0; i<numTexCoords; i++) {
ss << " oUV" << i << " = iUV" << i << ';' << std::endl;
}
ss << "}" << std::endl;
Ogre::String programSource = ss.str();
Ogre::String programName = mBaseName + "VP_" + Ogre::StringConverter::toString(permutation);
#if OGRE_DEBUG_MODE
Ogre::LogManager::getSingleton().getDefaultLog()->logMessage(programSource);
#endif
// Create shader object
Ogre::HighLevelGpuProgramPtr ptrProgram = Ogre::HighLevelGpuProgramManager::getSingleton().createProgram(
programName, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", Ogre::GPT_VERTEX_PROGRAM);
ptrProgram->setSource(programSource);
ptrProgram->setParameter("entry_point","ToGBufferVP");
ptrProgram->setParameter("profiles","vs_1_1 arbvp1");
const Ogre::GpuProgramParametersSharedPtr& params = ptrProgram->getDefaultParameters();
params->setNamedAutoConstant("cWorldViewProj", Ogre::GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
params->setNamedAutoConstant("cWorldView", Ogre::GpuProgramParameters::ACT_WORLDVIEW_MATRIX);
ptrProgram->load();
return Ogre::GpuProgramPtr(ptrProgram);
}
Ogre::GpuProgramPtr GBufferMaterialGeneratorImpl::generateVertexShader(MaterialGenerator::Perm permutation)
{
Ogre::StringStream ss;
if(mIsGLSL)
{
int shadingLangVersion = Ogre::Root::getSingleton().getRenderSystem()->getNativeShadingLanguageVersion();
const char *inSemantic = shadingLangVersion >= 150 ? "in" : "attribute";
const char *outSemantic = shadingLangVersion >= 150 ? "out" : "varying";
if(Ogre::GpuProgramManager::getSingleton().isSyntaxSupported("glsles"))
{
ss << "#version 300 es" << std::endl;
ss << "precision mediump int;" << std::endl;
ss << "precision mediump float;" << std::endl;
}
else
ss << "#version " << shadingLangVersion << std::endl;
ss << inSemantic << " vec4 vertex;" << std::endl;
ss << inSemantic << " vec3 normal;" << std::endl;
Ogre::uint32 numTexCoords = (permutation & GBufferMaterialGenerator::GBP_TEXCOORD_MASK) >> 8;
for (Ogre::uint32 i = 0; i < numTexCoords; i++)
{
ss << inSemantic << " vec2 uv" << i << ';' << std::endl;
}
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << inSemantic << " vec3 tangent;" << std::endl;
}
//TODO : Skinning inputs
ss << std::endl;
#ifdef WRITE_LINEAR_DEPTH
ss << outSemantic << " vec3 oViewPos;" << std::endl;
#else
ss << outSemantic << " float oDepth;" << std::endl;
#endif
ss << outSemantic << " vec3 oNormal;" << std::endl;
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << outSemantic << " vec3 oTangent;" << std::endl;
ss << outSemantic << " vec3 oBiNormal;" << std::endl;
}
for (Ogre::uint32 i = 0; i < numTexCoords; i++)
{
ss << outSemantic << " 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 (Ogre::uint32 i=0; i<numTexCoords; i++) {
ss << " oUv" << i << " = uv" << i << ';' << std::endl;
}
ss << "}" << std::endl;
Ogre::String programSource = ss.str();
Ogre::String programName = mBaseName + "VP_" + Ogre::StringConverter::toString(permutation);
#if OGRE_DEBUG_MODE
Ogre::LogManager::getSingleton().getDefaultLog()->logMessage(programSource);
#endif
// Create shader object
Ogre::HighLevelGpuProgramPtr ptrProgram;
if(Ogre::GpuProgramManager::getSingleton().isSyntaxSupported("glsles"))
{
ptrProgram = Ogre::HighLevelGpuProgramManager::getSingleton().createProgram(programName,
Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"glsles", Ogre::GPT_VERTEX_PROGRAM);
ptrProgram->setParameter("syntax", "glsles");
}
else
{
ptrProgram = Ogre::HighLevelGpuProgramManager::getSingleton().createProgram(programName,
Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"glsl", Ogre::GPT_VERTEX_PROGRAM);
}
ptrProgram->setSource(programSource);
const Ogre::GpuProgramParametersSharedPtr& params = ptrProgram->getDefaultParameters();
params->setNamedAutoConstant("cWorldViewProj", Ogre::GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
params->setNamedAutoConstant("cWorldView", Ogre::GpuProgramParameters::ACT_WORLDVIEW_MATRIX);
ptrProgram->load();
return Ogre::GpuProgramPtr(ptrProgram);
}
else
{
Ogre::GpuProgramPtr GBufferMaterialGeneratorImpl::generateFragmentShader(MaterialGenerator::Perm permutation)
{
Ogre::StringStream ss;
ss << "void ToGBufferFP(" << std::endl;
#ifdef WRITE_LINEAR_DEPTH
ss << " float3 iViewPos : TEXCOORD0," << std::endl;
#else
ss << " float1 iDepth : TEXCOORD0," << std::endl;
#endif
ss << " float3 iNormal : TEXCOORD1," << std::endl;
int texCoordNum = 2;
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << " float3 iTangent : TEXCOORD" << texCoordNum++ << ',' << std::endl;
ss << " float3 iBiNormal : TEXCOORD" << texCoordNum++ << ',' << std::endl;
}
Ogre::uint32 numTexCoords = (permutation & GBufferMaterialGenerator::GBP_TEXCOORD_MASK) >> 8;
for (Ogre::uint32 i=0; i<numTexCoords; i++)
{
ss << " float2 iUV" << i << " : TEXCOORD" << texCoordNum++ << ',' << std::endl;
}
ss << std::endl;
ss << " out float4 oColor0 : COLOR0," << std::endl;
ss << " out float4 oColor1 : COLOR1," << std::endl;
ss << std::endl;
int samplerNum = 0;
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << " uniform sampler sNormalMap : register(s" << samplerNum++ << ")," << std::endl;
}
Ogre::uint32 numTextures = permutation & GBufferMaterialGenerator::GBP_TEXTURE_MASK;
for (Ogre::uint32 i=0; i<numTextures; i++) {
ss << " uniform sampler sTex" << i << " : register(s" << samplerNum++ << ")," << std::endl;
}
if (numTextures == 0 || permutation & GBufferMaterialGenerator::GBP_HAS_DIFFUSE_COLOUR)
{
ss << " uniform float4 cDiffuseColour," << std::endl;
}
#ifdef WRITE_LINEAR_DEPTH
ss << " uniform float cFarDistance," << std::endl;
#endif
ss << " uniform float cSpecularity" << std::endl;
ss << " )" << std::endl;
ss << "{" << std::endl;
if (numTexCoords > 0 && numTextures > 0)
{
ss << " oColor0.rgb = tex2D(sTex0, iUV0);" << std::endl;
if (permutation & GBufferMaterialGenerator::GBP_HAS_DIFFUSE_COLOUR)
{
ss << " oColor0.rgb *= cDiffuseColour.rgb;" << std::endl;
}
}
else
{
ss << " oColor0.rgb = cDiffuseColour.rgb;" << std::endl;
}
ss << " oColor0.a = cSpecularity;" << std::endl;
if (permutation & GBufferMaterialGenerator::GBP_NORMAL_MAP)
{
ss << " float3 texNormal = (tex2D(sNormalMap, iUV0)-0.5)*2;" << std::endl;
ss << " float3x3 normalRotation = float3x3(iTangent, iBiNormal, iNormal);" << std::endl;
ss << " oColor1.rgb = normalize(mul(texNormal, normalRotation));" << std::endl;
} else
{
ss << " oColor1.rgb = normalize(iNormal);" << std::endl;
}
#ifdef WRITE_LINEAR_DEPTH
ss << " oColor1.a = length(iViewPos) / cFarDistance;" << std::endl;
#else
ss << " oColor1.a = iDepth;" << std::endl;
#endif
ss << "}" << std::endl;
Ogre::String programSource = ss.str();
Ogre::String programName = mBaseName + "FP_" + Ogre::StringConverter::toString(permutation);
#if OGRE_DEBUG_MODE
Ogre::LogManager::getSingleton().getDefaultLog()->logMessage(programSource);
#endif
// Create shader object
Ogre::HighLevelGpuProgramPtr ptrProgram = Ogre::HighLevelGpuProgramManager::getSingleton().createProgram(
programName, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"cg", Ogre::GPT_FRAGMENT_PROGRAM);
ptrProgram->setSource(programSource);
ptrProgram->setParameter("entry_point","ToGBufferFP");
ptrProgram->setParameter("profiles","ps_2_0 arbfp1");
const Ogre::GpuProgramParametersSharedPtr& params = ptrProgram->getDefaultParameters();
params->setNamedAutoConstant("cSpecularity", Ogre::GpuProgramParameters::ACT_SURFACE_SHININESS);
if (numTextures == 0 || permutation & GBufferMaterialGenerator::GBP_HAS_DIFFUSE_COLOUR)
{
params->setNamedAutoConstant("cDiffuseColour", Ogre::GpuProgramParameters::ACT_SURFACE_DIFFUSE_COLOUR);
}
#ifdef WRITE_LINEAR_DEPTH
//TODO : Should this be the distance to the far corner, not the far clip distance?
params->setNamedAutoConstant("cFarDistance", Ogre::GpuProgramParameters::ACT_FAR_CLIP_DISTANCE);
#endif
ptrProgram->load();
return Ogre::GpuProgramPtr(ptrProgram);
}
//-----------------------------------------------------------------------
void ParticleRenderer::_createSoftMaterial(void)
{
Ogre::String newMaterialName = SOFT_PREFIX + mParentTechnique->getMaterialName();
if (!Ogre::MaterialManager::getSingletonPtr()->getByName(newMaterialName).isNull())
{
mParentTechnique->setMaterialName(newMaterialName);
return;
}
// Create a new material for soft particles
if (mUseSoftParticles && mNotifiedDepthMap)
{
// Create Vertex program
Ogre::String softVertexName = "ParticleUniverse_SoftVP"; // Use ParticleUniverse_ to avoid name conflicts.
Ogre::HighLevelGpuProgramPtr vertexProgram = Ogre::HighLevelGpuProgramManager::getSingleton().createProgram(
softVertexName,
Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"hlsl",
Ogre::GPT_VERTEX_PROGRAM);
vertexProgram->setSourceFile("pu_soft_sm20.hlsl");
vertexProgram->setParameter("target", "vs_2_0");
vertexProgram->setParameter("entry_point", "mainVP"); // Must be same name as in pu_soft_sm20.hlsl
vertexProgram->load();
Ogre::String softFragmentName = "ParticleUniverse_SoftFP"; // Use ParticleUniverse_ to avoid name conflicts.
Ogre::HighLevelGpuProgramPtr fragmentProgram = Ogre::HighLevelGpuProgramManager::getSingleton().createProgram(
softFragmentName,
Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
"hlsl",
Ogre::GPT_FRAGMENT_PROGRAM);
fragmentProgram->setSourceFile("pu_soft_sm20.hlsl");
fragmentProgram->setParameter("target", "ps_2_0");
fragmentProgram->setParameter("entry_point", "mainFP"); // Must be same name as in pu_soft_sm20.hlsl
fragmentProgram->load();
Ogre::String resourceGroupName = mParentTechnique->getParentSystem() ?
mParentTechnique->getParentSystem()->getResourceGroupName() :
Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME;
// Create material with depth texture
Ogre::MaterialPtr newMaterial = Ogre::MaterialManager::getSingleton().getByName(newMaterialName);
if (!newMaterial.getPointer())
{
newMaterial = Ogre::MaterialManager::getSingleton().create(newMaterialName, resourceGroupName);
Ogre::Pass* newPass = newMaterial->getTechnique(0)->getPass(0);
newPass->setDepthCheckEnabled(true);
newPass->setDepthWriteEnabled(false);
newPass->setSceneBlending(Ogre::SBT_TRANSPARENT_ALPHA);
newPass->createTextureUnitState(ParticleSystemManager::getSingleton().getDepthTextureName());
// Get the first texture from the old material (assume it has at least 1 technique and one pass)
Ogre::Pass* oldPass = mParentTechnique->getMaterial()->getBestTechnique()->getPass(0);
newPass->setLightingEnabled(oldPass->getLightingEnabled());
if (oldPass->getNumTextureUnitStates() > 0)
{
Ogre::TextureUnitState* oldTextureUnitState = oldPass->getTextureUnitState(0);
newPass->createTextureUnitState(oldTextureUnitState->getTextureName());
}
// Set the vertex and fragment parameters
newPass->setVertexProgram(softVertexName);
newPass->setFragmentProgram(softFragmentName);
Ogre::GpuProgramParametersSharedPtr vertexParams = newPass->getVertexProgramParameters();
vertexParams->setNamedAutoConstant("worldViewProj", Ogre::GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
vertexParams->setNamedAutoConstant("depthRange", Ogre::GpuProgramParameters::ACT_SCENE_DEPTH_RANGE);
// Depth scale must be the same as used in creation of the depth map
vertexParams->setNamedConstant("depthScale", ParticleSystemManager::getSingleton().getDepthScale());
Ogre::GpuProgramParametersSharedPtr fragmentParams = newPass->getFragmentProgramParameters();
fragmentParams->setNamedConstant("contrastPower", mSoftParticlesContrastPower);
fragmentParams->setNamedConstant("scale", mSoftParticlesScale);
fragmentParams->setNamedConstant("delta", mSoftParticlesDelta);
}
// Set the new material
mParentTechnique->setMaterialName(newMaterialName);
}
}