bool ShadowUpdateTask::executeTaskInMainThread()
{
if (!mPageGeometries.empty()) {
auto pageGeometry = mPageGeometries.back();
mPageGeometries.pop_back();
auto& page = pageGeometry->getPage();
if (page.getSurface()) {
auto shadow = page.getSurface()->getShadow();
if (shadow) {
auto& shadowTextureName = shadow->getShadowTextureName();
if (!shadowTextureName.empty()) {
Ogre::TexturePtr texture = Ogre::Root::getSingletonPtr()->getTextureManager()->getByName(shadowTextureName, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
if (texture) {
Ogre::Image ogreImage;
shadow->loadIntoImage(ogreImage);
texture->loadImage(ogreImage);
//blit the whole image to the hardware buffer
Ogre::PixelBox sourceBox(ogreImage.getPixelBox());
//blit for each mipmap
for (unsigned int i = 0; i <= texture->getNumMipmaps(); ++i) {
Ogre::HardwarePixelBufferSharedPtr hardwareBuffer(texture->getBuffer(0, i));
hardwareBuffer->blitFromMemory(sourceBox);
}
}
}
}
}
}
return mPageGeometries.empty();
}
Ogre::TexturePtr Simple::updateShadowTexture(Ogre::MaterialPtr material, const TerrainPageShadow* terrainPageShadow, std::set<std::string>& managedTextures) const
{
auto shadowTextureName = getShadowTextureName(material);
Ogre::TexturePtr texture = static_cast<Ogre::TexturePtr>(Ogre::Root::getSingletonPtr()->getTextureManager()->getByName(shadowTextureName));
if (texture.isNull()) {
texture = Ogre::Root::getSingletonPtr()->getTextureManager()->createManual(shadowTextureName, "General", Ogre::TEX_TYPE_2D, mPage.getBlendMapSize(), mPage.getBlendMapSize(), 1, Ogre::PF_L8, Ogre::TU_DYNAMIC_WRITE_ONLY);
managedTextures.insert(texture->getName());
}
Ogre::Image ogreImage;
terrainPageShadow->loadIntoImage(ogreImage);
texture->loadImage(ogreImage);
//blit the whole image to the hardware buffer
Ogre::PixelBox sourceBox(ogreImage.getPixelBox());
//blit for each mipmap
for (unsigned int i = 0; i <= texture->getNumMipmaps(); ++i) {
Ogre::HardwarePixelBufferSharedPtr hardwareBuffer(texture->getBuffer(0, i));
hardwareBuffer->blitFromMemory(sourceBox);
}
return texture;
}
Ogre::TexturePtr Simple::updateShadowTexture(Ogre::MaterialPtr material, const TerrainPageShadow* terrainPageShadow)
{
//we need an unique name for our alpha texture
std::stringstream shadowTextureNameSS;
shadowTextureNameSS << material->getName() << "_shadow";
const Ogre::String shadowTextureName(shadowTextureNameSS.str());
Ogre::TexturePtr texture = static_cast<Ogre::TexturePtr> (Ogre::Root::getSingletonPtr()->getTextureManager()->getByName(shadowTextureName));
if (texture.isNull()) {
texture = Ogre::Root::getSingletonPtr()->getTextureManager()->createManual(shadowTextureName, "General", Ogre::TEX_TYPE_2D, mPage.getAlphaTextureSize(), mPage.getAlphaTextureSize(), 1, Ogre::PF_L8, Ogre::TU_DYNAMIC_WRITE_ONLY);
}
Ogre::Image ogreImage;
terrainPageShadow->loadIntoImage(ogreImage);
texture->loadImage(ogreImage);
//blit the whole image to the hardware buffer
Ogre::PixelBox sourceBox(ogreImage.getPixelBox());
//blit for each mipmap
for (unsigned int i = 0; i <= texture->getNumMipmaps(); ++i) {
Ogre::HardwarePixelBufferSharedPtr hardwareBuffer(texture->getBuffer(0, i));
hardwareBuffer->blitFromMemory(sourceBox);
}
return texture;
}
void Simple::addLightingPass(Ogre::Technique* technique, std::set<std::string>& managedTextures) const
{
Ogre::Pass* lightingPass = technique->createPass();
lightingPass->setSceneBlending(Ogre::SBT_MODULATE);
lightingPass->setLightingEnabled(false);
Ogre::TextureUnitState * textureUnitStateSplat = lightingPass->createTextureUnitState();
//we need an unique name for our alpha texture
std::stringstream lightingTextureNameSS;
lightingTextureNameSS << technique->getParent()->getName() << "_lighting";
const Ogre::String lightingTextureName(lightingTextureNameSS.str());
Ogre::TexturePtr texture = static_cast<Ogre::TexturePtr>(Ogre::Root::getSingletonPtr()->getTextureManager()->getByName(lightingTextureName));
if (texture.isNull()) {
texture = Ogre::Root::getSingletonPtr()->getTextureManager()->createManual(lightingTextureName, "General", Ogre::TEX_TYPE_2D, mPage.getBlendMapSize(), mPage.getBlendMapSize(), 1, Ogre::PF_L8, Ogre::TU_DYNAMIC_WRITE_ONLY);
managedTextures.insert(texture->getName());
}
Ogre::Image ogreImage;
ogreImage.loadDynamicImage(const_cast<unsigned char*>(mLightingImage->getData()), mLightingImage->getResolution(), mLightingImage->getResolution(), 1, Ogre::PF_L8);
texture->loadImage(ogreImage);
//blit the whole image to the hardware buffer
Ogre::PixelBox sourceBox(ogreImage.getPixelBox());
//blit for each mipmap
for (unsigned int i = 0; i <= texture->getNumMipmaps(); ++i) {
Ogre::HardwarePixelBufferSharedPtr hardwareBuffer(texture->getBuffer(0, i));
hardwareBuffer->blitFromMemory(sourceBox);
}
textureUnitStateSplat->setTextureName(texture->getName());
textureUnitStateSplat->setTextureCoordSet(0);
textureUnitStateSplat->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
textureUnitStateSplat->setTextureFiltering(Ogre::TFO_ANISOTROPIC);
}
// void TerrainPageSurfaceCompiler::addTextureUnitsToPass(Ogre::Pass* pass, const Ogre::String& splatTextureName) {
//
// if (getMaxTextureUnits() - pass->getNumTextureUnitStates() < 2 || pass->getParent()->getNumPasses() > 1) {
// addPassToTechnique(pass->getParent(), splatTextureName);
// // S_LOG_WARNING("Trying to add texture units to pass with too few available texture unit states.");
// return;
// }
//
// S_LOG_VERBOSE("Adding new texture unit (detailtexture: " << mTextureName << " alphatexture: " << splatTextureName << ") to pass nr " << pass->getIndex() << " in technique for material " << pass->getParent()->getParent()->getName());
//
// /* pass->setSelfIllumination(Ogre::ColourValue(1,1,1));
// pass->setAmbient(Ogre::ColourValue(1,1,1));
// pass->setDiffuse(Ogre::ColourValue(1,1,1));
// pass->setLightingEnabled(true);*/
// Ogre::TextureUnitState * textureUnitStateSplat = pass->createTextureUnitState();
// textureUnitStateSplat->setTextureName(splatTextureName);
//
// textureUnitStateSplat->setTextureCoordSet(0);
// textureUnitStateSplat->setTextureFiltering(Ogre::TFO_ANISOTROPIC);
// textureUnitStateSplat->setAlphaOperation(Ogre::LBX_SOURCE1, Ogre::LBS_TEXTURE, Ogre::LBS_TEXTURE);
// textureUnitStateSplat->setColourOperationEx(Ogre::LBX_SOURCE1, Ogre::LBS_CURRENT, Ogre::LBS_CURRENT);
// textureUnitStateSplat->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
// // textureUnitStateSplat->setColourOperationEx(Ogre::LBX_BLEND_DIFFUSE_ALPHA, Ogre::LBS_CURRENT, Ogre::LBS_TEXTURE);
// // textureUnitStateSplat->setColourOperationEx(Ogre::LBX_BLEND_TEXTURE_ALPHA, Ogre::LBS_CURRENT, Ogre::LBS_TEXTURE);
//
// Ogre::TextureUnitState * textureUnitState = pass->createTextureUnitState();
// textureUnitState->setTextureName(mTextureName);
// textureUnitState->setTextureAddressingMode(Ogre::TextureUnitState::TAM_WRAP);
// /* textureUnitState->setTextureCoordSet(0);*/
// textureUnitState->setTextureScale(0.025, 0.025);
// textureUnitState->setColourOperationEx(Ogre::LBX_BLEND_CURRENT_ALPHA, Ogre::LBS_TEXTURE, Ogre::LBS_CURRENT);
//
// /* Ogre::TextureUnitState * alphaTextureState= pass->createTextureUnitState();
// alphaTextureState->setTextureName(mTextureName);
// // alphaTextureState->setTextureName(splatTextureName);
// alphaTextureState->setTextureCoordSet(0);
// alphaTextureState->setTextureFiltering(Ogre::TFO_ANISOTROPIC);
// alphaTextureState->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
// alphaTextureState->setColourOperationEx(Ogre::LBX_BLEND_DIFFUSE_ALPHA, Ogre::LBS_CURRENT, Ogre::LBS_TEXTURE);
//
//
//
// // detailTextureState->setAlphaOperation(Ogre::LBX_SOURCE1, Ogre::LBS_TEXTURE, Ogre::LBS_TEXTURE);
// // detailTextureState->setColourOperationEx(Ogre::LBX_SOURCE1, Ogre::LBS_CURRENT, Ogre::LBS_CURRENT);
//
// Ogre::TextureUnitState * detailTextureState = pass->createTextureUnitState();
// detailTextureState ->setTextureName(splatTextureName);
// // detailTextureState ->setTextureName(mTextureName);
// detailTextureState ->setTextureAddressingMode(Ogre::TextureUnitState::TAM_WRAP);
// detailTextureState ->setTextureCoordSet(0);
// detailTextureState ->setTextureScale(0.01, 0.01);
// //detailTextureState ->setColourOperationEx(Ogre::LBX_BLEND_CURRENT_ALPHA, Ogre::LBS_TEXTURE, Ogre::LBS_CURRENT);*/
//
// }
//
Ogre::Pass* Simple::addPassToTechnique(const TerrainPageGeometry& geometry, Ogre::Technique* technique, const Layer& layer, std::set<std::string>& managedTextures) const
{
//check if we instead can reuse the existing pass
// if (technique->getNumPasses() != 0) {
// Ogre::Pass* pass = technique->getPass(technique->getNumPasses() - 1);
// if (4 - pass->getNumTextureUnitStates() >= 2) {
// //there's more than two texture units available, use those instead of creating a new pass
// S_LOG_VERBOSE("Reusing existing pass. ("<< pass->getNumTextureUnitStates() << " of "<< mNumberOfTextureUnitsOnCard << " texture unit used)");
// addTextureUnitsToPass(pass, splatTextureName);
// return pass;
// }
//
// }
const OgreImage& ogreImage = *layer.blendMap;
Ogre::Image image;
image.loadDynamicImage(const_cast<unsigned char*>(ogreImage.getData()), ogreImage.getResolution(), ogreImage.getResolution(), 1, Ogre::PF_A8);
std::stringstream splatTextureNameSS;
splatTextureNameSS << "terrain_" << mPage.getWFPosition().x() << "_" << mPage.getWFPosition().y() << "_" << technique->getNumPasses();
const Ogre::String splatTextureName(splatTextureNameSS.str());
Ogre::TexturePtr blendMapTexture;
if (Ogre::Root::getSingletonPtr()->getTextureManager()->resourceExists(splatTextureName)) {
blendMapTexture = static_cast<Ogre::TexturePtr>(Ogre::Root::getSingletonPtr()->getTextureManager()->getByName(splatTextureName));
blendMapTexture->loadImage(image);
Ogre::HardwarePixelBufferSharedPtr hardwareBuffer(blendMapTexture->getBuffer());
//blit the whole image to the hardware buffer
Ogre::PixelBox sourceBox(image.getPixelBox());
hardwareBuffer->blitFromMemory(sourceBox);
} else {
blendMapTexture = Ogre::Root::getSingletonPtr()->getTextureManager()->loadImage(splatTextureName, "General", image, Ogre::TEX_TYPE_2D, 0);
managedTextures.insert(blendMapTexture->getName());
}
//we need to create the image, update it and then destroy it again (to keep the memory usage down)
// if (layer->getBlendMapTextureName() == "") {
// //no texture yet; let's create one
// layer->createBlendMapImage();
// layer->updateBlendMapImage(geometry);
// layer->createTexture();
// } else {
// //a texture exists, so we just need to update the image
// layer->updateBlendMapImage(geometry); //calling this will also update the texture since the method will blit the image onto it
// }
Ogre::Pass* pass = technique->createPass();
pass->setSceneBlending(Ogre::SBT_TRANSPARENT_ALPHA);
pass->setAmbient(1, 1, 1);
pass->setDiffuse(1, 1, 1, 1);
pass->setLightingEnabled(false);
Ogre::TextureUnitState * textureUnitState = pass->createTextureUnitState();
textureUnitState->setTextureName(layer.surfaceLayer.getDiffuseTextureName());
textureUnitState->setTextureAddressingMode(Ogre::TextureUnitState::TAM_WRAP);
textureUnitState->setTextureCoordSet(0);
textureUnitState->setTextureScale(1.0f / layer.surfaceLayer.getScale(), 1.0f / layer.surfaceLayer.getScale());
Ogre::TextureUnitState * textureUnitStateSplat = pass->createTextureUnitState();
textureUnitStateSplat->setTextureName(blendMapTexture->getName());
textureUnitStateSplat->setTextureCoordSet(0);
textureUnitStateSplat->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
textureUnitStateSplat->setTextureFiltering(Ogre::TFO_ANISOTROPIC);
// textureUnitStateSplat->setAlphaOperation(Ogre::LBX_SOURCE1, Ogre::LBS_TEXTURE, Ogre::LBS_TEXTURE);
textureUnitStateSplat->setAlphaOperation(Ogre::LBX_BLEND_DIFFUSE_COLOUR, Ogre::LBS_TEXTURE, Ogre::LBS_CURRENT);
textureUnitStateSplat->setColourOperationEx(Ogre::LBX_SOURCE1, Ogre::LBS_CURRENT, Ogre::LBS_CURRENT);
return pass;
}
