//---------------------------------------------------------------------
MaterialPtr TerrainMaterialGeneratorA::SM2Profile::generate(const Terrain* terrain)
{
// re-use old material if exists
MaterialPtr mat = terrain->_getMaterial();
if (mat.isNull())
{
MaterialManager& matMgr = MaterialManager::getSingleton();
// it's important that the names are deterministic for a given terrain, so
// use the terrain pointer as an ID
const String& matName = terrain->getMaterialName();
mat = matMgr.getByName(matName);
if (mat.isNull())
{
mat = matMgr.create(matName, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
}
}
// clear everything
mat->removeAllTechniques();
// Automatically disable normal & parallax mapping if card cannot handle it
// We do this rather than having a specific technique for it since it's simpler
GpuProgramManager& gmgr = GpuProgramManager::getSingleton();
if (!gmgr.isSyntaxSupported("ps_4_0") && !gmgr.isSyntaxSupported("ps_3_0") && !gmgr.isSyntaxSupported("ps_2_x")
&& !gmgr.isSyntaxSupported("fp40") && !gmgr.isSyntaxSupported("arbfp1") && !gmgr.isSyntaxSupported("glsl")
&& !gmgr.isSyntaxSupported("glsles"))
{
setLayerNormalMappingEnabled(false);
setLayerParallaxMappingEnabled(false);
}
addTechnique(mat, terrain, HIGH_LOD);
// LOD
if(mCompositeMapEnabled)
{
addTechnique(mat, terrain, LOW_LOD);
Material::LodValueList lodValues;
lodValues.push_back(TerrainGlobalOptions::getSingleton().getCompositeMapDistance());
mat->setLodLevels(lodValues);
Technique* lowLodTechnique = mat->getTechnique(1);
lowLodTechnique->setLodIndex(1);
}
updateParams(mat, terrain);
return mat;
}
//---------------------------------------------------------------------
ushort LodStrategy::getIndexDescending(Real value, const Material::LodValueList& materialLodValueList)
{
Material::LodValueList::const_iterator i, iend;
iend = materialLodValueList.end();
unsigned short index = 0;
for (i = materialLodValueList.begin(); i != iend; ++i, ++index)
{
if (*i < value)
{
return index ? index - 1 : 0;
}
}
// If we fall all the way through, use the highest value
return static_cast<ushort>(materialLodValueList.size() - 1);
}
//---------------------------------------------------------------------
MaterialPtr TerrainMaterialGeneratorC::SM2Profile::generate(const Terrain* terrain)
{
// re-use old material if exists
MaterialPtr mat = terrain->_getMaterial();
if (mat.isNull())
{
MaterialManager& matMgr = MaterialManager::getSingleton();
// it's important that the names are deterministic for a given terrain, so
// use the terrain pointer as an ID
const String& matName = terrain->getMaterialName();
mat = matMgr.getByName(matName);
if (mat.isNull())
{
mat = matMgr.create(matName, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
}
}
// clear everything
mat->removeAllTechniques();
addTechnique(mat, terrain, HIGH_LOD);
// LOD
if(mCompositeMapEnabled)
{
addTechnique(mat, terrain, LOW_LOD);
Material::LodValueList lodValues;
lodValues.push_back(TerrainGlobalOptions::getSingleton().getCompositeMapDistance());
mat->setLodLevels(lodValues);
Technique* lowLodTechnique = mat->getTechnique(1);
lowLodTechnique->setLodIndex(1);
}
updateParams(mat, terrain);
return mat;
}
void TerrainMaterial::Profile::createMaterial(const String& matName, const Terrain* terrain, bool renderCompositeMap)
{
sh::Factory::getInstance().destroyMaterialInstance(matName);
MaterialPtr mat = MaterialManager::getSingleton().getByName(matName);
if (!mat.isNull())
MaterialManager::getSingleton().remove(matName);
mMaterial = sh::Factory::getInstance().createMaterialInstance(matName);
if (!renderCompositeMap)
{
MaterialPtr ogreMat = static_cast<sh::OgreMaterial*>(mMaterial->getMaterial())->getOgreMaterial();
Material::LodValueList list;
list.push_back(TerrainGlobalOptions::getSingleton().getCompositeMapDistance());
ogreMat->setLodLevels(list);
}
mMaterial->setProperty("allow_fixed_function", sh::makeProperty<sh::BooleanValue>(new sh::BooleanValue(false)));
sh::MaterialInstancePass* p = mMaterial->createPass();
p->setProperty("vertex_program", STR("terrain_vertex"));
p->setProperty("fragment_program", STR("terrain_fragment"));
p->mShaderProperties.setProperty("composite_map", sh::makeProperty<sh::BooleanValue>(new sh::BooleanValue(renderCompositeMap)));
typedef sh::MaterialInstanceTextureUnit* MatTex;
// global normal map ?-
MatTex normalMap = p->createTextureUnit("normalMap");
normalMap->setProperty("direct_texture", STR(terrain->getTerrainNormalMap()->getName()));
normalMap->setProperty("tex_address_mode", STR("clamp"));
// light map
MatTex lightMap = p->createTextureUnit("lightMap");
lightMap->setProperty("direct_texture", STR(terrain->getLightmap()->getName()));
lightMap->setProperty("tex_address_mode", STR("clamp"));
uint maxLayers = getMaxLayers(terrain),
numBlendTextures = std::min(terrain->getBlendTextureCount(maxLayers), terrain->getBlendTextureCount()), // = 1
numLayers = std::min(maxLayers, static_cast<uint>(terrain->getLayerCount()));
p->mShaderProperties.setProperty("num_layers", STR(toStr(numLayers)));
p->mShaderProperties.setProperty("num_blendmaps", STR(toStr(numBlendTextures)));
// blend maps
for (uint i = 0; i < numBlendTextures; ++i)
{
MatTex blendTex = p->createTextureUnit("blendMap" + toStr(i));
blendTex->setProperty("direct_texture", STR("blendmapRTT"));
blendTex->setProperty("tex_address_mode", STR("clamp"));
}
// layer diffuse+spec
for (uint i = 0; i < numLayers; ++i)
{
MatTex diffuseTex = p->createTextureUnit("diffuseMap" + toStr(i));
diffuseTex->setProperty("direct_texture", STR(terrain->getLayerTextureName(i, 0)));
p->mShaderProperties.setProperty("blendmap_component_" + toStr(i),
STR(toStr(i / 4) + "." + getComponent(i % 4)));
}
// layer normal+height
for (uint i = 0; i < numLayers; ++i)
{
MatTex normalTex = p->createTextureUnit("normalMap" + toStr(i));
normalTex->setProperty("direct_texture", STR(terrain->getLayerTextureName(i, 1)));
}
// shadow
if (!renderCompositeMap)
{
for (int i = 0; i < 3; ++i)
{
MatTex shadowTex = p->createTextureUnit("shadowMap" + toStr(i));
shadowTex->setProperty("content_type", STR("shadow"));
}
}
// composite map
MatTex compositeMap = p->createTextureUnit("compositeMap");
compositeMap->setProperty("direct_texture", STR(terrain->getCompositeMap()->getName()));
// uv multipliers ?-
uint numUVMul = numLayers / 4;
if (numLayers % 4)
++numUVMul;
for (int i = 0; i < numUVMul; ++i)
{
int ii = i * 4;
sh::Vector4* uvMul = new sh::Vector4(
terrain->getLayerUVMultiplier(ii), terrain->getLayerUVMultiplier(ii + 1),
terrain->getLayerUVMultiplier(ii + 2), terrain->getLayerUVMultiplier(ii + 3) );
for (int j=0; j<4; ++j)
{
p->mShaderProperties.setProperty("uv_component_" + toStr(i*4+j), STR(
toStr(i) + "." + getComponent(j) ));
}
p->mShaderProperties.setProperty("uv_mul_" + toStr(i), sh::makeProperty<sh::Vector4>(uvMul));
}
p->mShaderProperties.setProperty("num_uv_mul", STR(toStr(numUVMul)));
p->mShaderProperties.setProperty("shadowtexture_offset", STR(toStr(0)));
}
