//-----------------------------------------------------------------------
void CompositorInstance::createResources()
{
static size_t dummyCounter = 0;
freeResources();
/// Create temporary textures
/// In principle, temporary textures could be shared between multiple viewports
/// (CompositorChains). This will save a lot of memory in case more viewports
/// are composited.
CompositionTechnique::TextureDefinitionIterator it = mTechnique->getTextureDefinitionIterator();
while(it.hasMoreElements())
{
CompositionTechnique::TextureDefinition *def = it.getNext();
/// Determine width and height
int width = def->width.adjust +
static_cast<int>(mChain->getViewport()->getActualWidth() * def->width.viewport) +
static_cast<int>(mChain->getViewport()->getActualWidth() * def->width.previous); // FIXME
int height = def->height.adjust +
static_cast<int>(mChain->getViewport()->getActualHeight() * def->height.viewport) +
static_cast<int>(mChain->getViewport()->getActualHeight() * def->height.previous); // FIXME
if (width <= 0)
{
// Throw exception? Not that case, because user can't guarantee
// provides correct parameters always, since it might related to
// viewport dimensions which can't control by user all the way.
width = 1;
}
if (height <= 0)
{
// Throw exception? Not that case, because user can't guarantee
// provides correct parameters always, since it might related to
// viewport dimensions which can't control by user all the way.
height = 1;
}
/// Make the tetxure
TexturePtr tex = TextureManager::getSingleton().createManual(
"CompositorInstanceTexture"+StringConverter::toString(dummyCounter),
ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME, TEX_TYPE_2D,
(uint)width, (uint)height, 0, def->format, TU_RENDERTARGET );
++dummyCounter;
mLocalTextures[def->name] = tex;
/// Set up viewport over entire texture
RenderTexture *rtt = tex->getBuffer()->getRenderTarget();
rtt->setAutoUpdated( false );
Camera* camera = mChain->getViewport()->getCamera();
// Save last viewport and current aspect ratio
Viewport* oldViewport = camera->getViewport();
Real aspectRatio = camera->getAspectRatio();
Viewport* v = rtt->addViewport( camera );
v->setClearEveryFrame( false );
v->setOverlaysEnabled( false );
v->setBackgroundColour( ColourValue( 0, 0, 0, 0 ) );
// Should restore aspect ratio, in case of auto aspect ratio
// enabled, it'll changed when add new viewport.
camera->setAspectRatio(aspectRatio);
// Should restore last viewport, i.e. never disturb user code
// which might based on that.
camera->_notifyViewport(oldViewport);
}
}
//-----------------------------------------------------------------------
void Compositor::createGlobalTextures()
{
static size_t dummyCounter = 0;
if (mSupportedTechniques.empty())
return;
//To make sure that we are consistent, it is demanded that all composition
//techniques define the same set of global textures.
typedef std::set<String> StringSet;
StringSet globalTextureNames;
//Initialize global textures from first supported technique
CompositionTechnique* firstTechnique = mSupportedTechniques[0];
CompositionTechnique::TextureDefinitionIterator texDefIt =
firstTechnique->getTextureDefinitionIterator();
while (texDefIt.hasMoreElements())
{
CompositionTechnique::TextureDefinition* def = texDefIt.getNext();
if (def->scope == CompositionTechnique::TS_GLOBAL)
{
//Check that this is a legit global texture
if (!def->refCompName.empty())
{
OGRE_EXCEPT(Exception::ERR_INVALID_STATE,
"Global compositor texture definition can not be a reference",
"Compositor::createGlobalTextures");
}
if (def->width == 0 || def->height == 0)
{
OGRE_EXCEPT(Exception::ERR_INVALID_STATE,
"Global compositor texture definition must have absolute size",
"Compositor::createGlobalTextures");
}
if (def->pooled)
{
LogManager::getSingleton().logMessage(
"Pooling global compositor textures has no effect");
}
globalTextureNames.insert(def->name);
//TODO GSOC : Heavy copy-pasting from CompositorInstance. How to we solve it?
/// Make the tetxure
RenderTarget* rendTarget;
if (def->formatList.size() > 1)
{
String MRTbaseName = "c" + StringConverter::toString(dummyCounter++) +
"/" + mName + "/" + def->name;
MultiRenderTarget* mrt =
Root::getSingleton().getRenderSystem()->createMultiRenderTarget(MRTbaseName);
mGlobalMRTs[def->name] = mrt;
// create and bind individual surfaces
size_t atch = 0;
for (PixelFormatList::iterator p = def->formatList.begin();
p != def->formatList.end(); ++p, ++atch)
{
String texname = MRTbaseName + "/" + StringConverter::toString(atch);
TexturePtr tex;
tex = TextureManager::getSingleton().createManual(
texname,
ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME, TEX_TYPE_2D,
(uint)def->width, (uint)def->height, 0, *p, TU_RENDERTARGET, 0,
def->hwGammaWrite && !PixelUtil::isFloatingPoint(*p), def->fsaa);
RenderTexture* rt = tex->getBuffer()->getRenderTarget();
rt->setAutoUpdated(false);
mrt->bindSurface(atch, rt);
// Also add to local textures so we can look up
String mrtLocalName = getMRTTexLocalName(def->name, atch);
mGlobalTextures[mrtLocalName] = tex;
}
rendTarget = mrt;
}
else
{
String texName = "c" + StringConverter::toString(dummyCounter++) +
"/" + mName + "/" + def->name;
// space in the name mixup the cegui in the compositor demo
// this is an auto generated name - so no spaces can't hart us.
std::replace( texName.begin(), texName.end(), ' ', '_' );
TexturePtr tex;
tex = TextureManager::getSingleton().createManual(
texName,
ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME, TEX_TYPE_2D,
(uint)def->width, (uint)def->height, 0, def->formatList[0], TU_RENDERTARGET, 0,
def->hwGammaWrite && !PixelUtil::isFloatingPoint(def->formatList[0]), def->fsaa);
rendTarget = tex->getBuffer()->getRenderTarget();
mGlobalTextures[def->name] = tex;
}
//Set DepthBuffer pool for sharing
rendTarget->setDepthBufferPool( def->depthBufferId );
}
}
//Validate that all other supported techniques expose the same set of global textures.
for (size_t i=1; i<mSupportedTechniques.size(); i++)
{
CompositionTechnique* technique = mSupportedTechniques[i];
bool isConsistent = true;
size_t numGlobals = 0;
texDefIt = technique->getTextureDefinitionIterator();
while (texDefIt.hasMoreElements())
{
CompositionTechnique::TextureDefinition* texDef = texDefIt.getNext();
if (texDef->scope == CompositionTechnique::TS_GLOBAL)
{
if (globalTextureNames.find(texDef->name) == globalTextureNames.end())
{
isConsistent = false;
break;
}
numGlobals++;
}
}
if (numGlobals != globalTextureNames.size())
isConsistent = false;
if (!isConsistent)
{
OGRE_EXCEPT(Exception::ERR_INVALID_STATE,
"Different composition techniques define different global textures",
"Compositor::createGlobalTextures");
}
}
}
void ImpostorTexture::renderTextures(bool force)
{
#ifdef IMPOSTOR_FILE_SAVE
TexturePtr renderTexture;
#else
TexturePtr renderTexture(texture);
//if we're not using a file image we need to set up a resource loader, so that the texture is regenerated if it's ever unloaded (such as switching between fullscreen and the desktop in win32)
loader = std::auto_ptr<ImpostorTextureResourceLoader>(new ImpostorTextureResourceLoader(*this));
#endif
RenderTexture *renderTarget;
Camera *renderCamera;
Viewport *renderViewport;
SceneNode *camNode;
//Set up RTT texture
uint32 textureSize = ImpostorPage::impostorResolution;
if (renderTexture.isNull()) {
renderTexture = TextureManager::getSingleton().createManual(getUniqueID("ImpostorTexture"), "Impostors",
TEX_TYPE_2D, textureSize * IMPOSTOR_YAW_ANGLES, textureSize * IMPOSTOR_PITCH_ANGLES, 0, PF_A8R8G8B8, TU_RENDERTARGET, loader.get());
}
renderTexture->setNumMipmaps(MIP_UNLIMITED);
//Set up render target
renderTarget = renderTexture->getBuffer()->getRenderTarget();
renderTarget->setAutoUpdated(false);
//Set up camera
camNode = sceneMgr->getSceneNode("ImpostorPage::cameraNode");
renderCamera = sceneMgr->createCamera(getUniqueID("ImpostorCam"));
camNode->attachObject(renderCamera);
renderCamera->setLodBias(1000.0f);
renderViewport = renderTarget->addViewport(renderCamera);
renderViewport->setOverlaysEnabled(false);
renderViewport->setClearEveryFrame(true);
renderViewport->setShadowsEnabled(false);
renderViewport->setBackgroundColour(ImpostorPage::impostorBackgroundColor);
//Set up scene node
SceneNode* node = sceneMgr->getSceneNode("ImpostorPage::renderNode");
Ogre::SceneNode* oldSceneNode = entity->getParentSceneNode();
if (oldSceneNode) {
oldSceneNode->detachObject(entity);
}
node->attachObject(entity);
node->setPosition(-entityCenter);
//Set up camera FOV
const Real objDist = entityRadius * 100;
const Real nearDist = objDist - (entityRadius + 1);
const Real farDist = objDist + (entityRadius + 1);
renderCamera->setAspectRatio(1.0f);
renderCamera->setFOVy(Math::ATan(entityDiameter / objDist));
renderCamera->setNearClipDistance(nearDist);
renderCamera->setFarClipDistance(farDist);
//Disable mipmapping (without this, masked textures look bad)
MaterialManager *mm = MaterialManager::getSingletonPtr();
FilterOptions oldMinFilter = mm->getDefaultTextureFiltering(FT_MIN);
FilterOptions oldMagFilter = mm->getDefaultTextureFiltering(FT_MAG);
FilterOptions oldMipFilter = mm->getDefaultTextureFiltering(FT_MIP);
mm->setDefaultTextureFiltering(FO_POINT, FO_LINEAR, FO_NONE);
//Disable fog
FogMode oldFogMode = sceneMgr->getFogMode();
ColourValue oldFogColor = sceneMgr->getFogColour();
Real oldFogDensity = sceneMgr->getFogDensity();
Real oldFogStart = sceneMgr->getFogStart();
Real oldFogEnd = sceneMgr->getFogEnd();
sceneMgr->setFog(Ogre::FOG_EXP2, Ogre::ColourValue(0,0,0,0), 0.0f, 0.0f, 0.0f); //Ember change
//We need to disable all lightning and render it full bright
Ogre::ColourValue oldAmbientColour = sceneMgr->getAmbientLight();
sceneMgr->setAmbientLight(ColourValue::White);
std::vector<Ogre::MovableObject*> lightStore;
Ogre::SceneManager::MovableObjectIterator lightIterator = sceneMgr->getMovableObjectIterator(Ogre::LightFactory::FACTORY_TYPE_NAME);
while (lightIterator.hasMoreElements()) {
Ogre::MovableObject* light = lightIterator.getNext();
if (light) {
if (light->getVisible()) {
lightStore.push_back(light);
light->setVisible(false);
}
}
}
// Get current status of the queue mode
Ogre::SceneManager::SpecialCaseRenderQueueMode OldSpecialCaseRenderQueueMode = sceneMgr->getSpecialCaseRenderQueueMode();
//Only render the entity
sceneMgr->setSpecialCaseRenderQueueMode(Ogre::SceneManager::SCRQM_INCLUDE);
sceneMgr->addSpecialCaseRenderQueue(group->geom->getRenderQueue() + 1);
uint8 oldRenderQueueGroup = entity->getRenderQueueGroup();
entity->setRenderQueueGroup(group->geom->getRenderQueue() + 1);
bool oldVisible = entity->getVisible();
entity->setVisible(true);
float oldMaxDistance = entity->getRenderingDistance();
entity->setRenderingDistance(0);
bool needsRegen = true;
#ifdef IMPOSTOR_FILE_SAVE
//Calculate the filename hash used to uniquely identity this render
String strKey = entityKey;
char key[32] = {0};
uint32 i = 0;
for (String::const_iterator it = entityKey.begin(); it != entityKey.end(); ++it)
{
key[i] ^= *it;
i = (i+1) % sizeof(key);
}
for (i = 0; i < sizeof(key); ++i)
key[i] = (key[i] % 26) + 'A';
String tempdir = this->group->geom->getTempdir();
ResourceGroupManager::getSingleton().addResourceLocation(tempdir, "FileSystem", "BinFolder");
String fileNamePNG = "Impostor." + String(key, sizeof(key)) + '.' + StringConverter::toString(textureSize) + ".png";
String fileNameDDS = "Impostor." + String(key, sizeof(key)) + '.' + StringConverter::toString(textureSize) + ".dds";
//Attempt to load the pre-render file if allowed
needsRegen = force;
if (!needsRegen){
try{
texture = TextureManager::getSingleton().load(fileNameDDS, "BinFolder", TEX_TYPE_2D, MIP_UNLIMITED);
}
catch (...){
try{
texture = TextureManager::getSingleton().load(fileNamePNG, "BinFolder", TEX_TYPE_2D, MIP_UNLIMITED);
}
catch (...){
needsRegen = true;
}
}
}
#endif
if (needsRegen){
//If this has not been pre-rendered, do so now
const float xDivFactor = 1.0f / IMPOSTOR_YAW_ANGLES;
const float yDivFactor = 1.0f / IMPOSTOR_PITCH_ANGLES;
for (int o = 0; o < IMPOSTOR_PITCH_ANGLES; ++o){ //4 pitch angle renders
#ifdef IMPOSTOR_RENDER_ABOVE_ONLY
Radian pitch = Degree((90.0f * o) * yDivFactor); //0, 22.5, 45, 67.5
#else
Radian pitch = Degree((180.0f * o) * yDivFactor - 90.0f);
#endif
for (int i = 0; i < IMPOSTOR_YAW_ANGLES; ++i){ //8 yaw angle renders
Radian yaw = Degree((360.0f * i) * xDivFactor); //0, 45, 90, 135, 180, 225, 270, 315
//Position camera
camNode->setPosition(0, 0, 0);
camNode->setOrientation(Quaternion(yaw, Vector3::UNIT_Y) * Quaternion(-pitch, Vector3::UNIT_X));
camNode->translate(Vector3(0, 0, objDist), Node::TS_LOCAL);
//Render the impostor
renderViewport->setDimensions((float)(i) * xDivFactor, (float)(o) * yDivFactor, xDivFactor, yDivFactor);
renderTarget->update();
}
}
#ifdef IMPOSTOR_FILE_SAVE
//Save RTT to file with respecting the temp dir
renderTarget->writeContentsToFile(tempdir + fileNamePNG);
//Load the render into the appropriate texture view
texture = TextureManager::getSingleton().load(fileNamePNG, "BinFolder", TEX_TYPE_2D, MIP_UNLIMITED);
#else
texture = renderTexture;
#endif
}
entity->setVisible(oldVisible);
entity->setRenderQueueGroup(oldRenderQueueGroup);
entity->setRenderingDistance(oldMaxDistance);
sceneMgr->removeSpecialCaseRenderQueue(group->geom->getRenderQueue() + 1);
// Restore original state
sceneMgr->setSpecialCaseRenderQueueMode(OldSpecialCaseRenderQueueMode);
//Re-enable mipmapping
mm->setDefaultTextureFiltering(oldMinFilter, oldMagFilter, oldMipFilter);
//Re-enable fog
sceneMgr->setFog(oldFogMode, oldFogColor, oldFogDensity, oldFogStart, oldFogEnd);
//Re-enable both scene lightning and disabled individual lights
sceneMgr->setAmbientLight(oldAmbientColour);
for (std::vector<Ogre::MovableObject*>::const_iterator I = lightStore.begin(); I != lightStore.end(); ++I) {
(*I)->setVisible(true);
}
//Delete camera
renderTarget->removeViewport(0);
renderCamera->getSceneManager()->destroyCamera(renderCamera);
//Delete scene node
node->detachAllObjects();
if (oldSceneNode) {
oldSceneNode->attachObject(entity);
}
#ifdef IMPOSTOR_FILE_SAVE
//Delete RTT texture
assert(!renderTexture.isNull());
String texName2(renderTexture->getName());
renderTexture.setNull();
if (TextureManager::getSingletonPtr())
TextureManager::getSingleton().remove(texName2);
#endif
}
//-----------------------------------------------------------------------
void CompositorInstance::createResources()
{
static size_t dummyCounter = 0;
freeResources();
/// Create temporary textures
/// In principle, temporary textures could be shared between multiple viewports
/// (CompositorChains). This will save a lot of memory in case more viewports
/// are composited.
CompositionTechnique::TextureDefinitionIterator it = mTechnique->getTextureDefinitionIterator();
while(it.hasMoreElements())
{
CompositionTechnique::TextureDefinition *def = it.getNext();
/// Determine width and height
size_t width = def->width;
size_t height = def->height;
uint fsaa = 0;
bool hwGammaWrite = false;
deriveTextureRenderTargetOptions(def->name, &hwGammaWrite, &fsaa);
if(width == 0)
width = static_cast<size_t>(
static_cast<float>(mChain->getViewport()->getActualWidth()) * def->widthFactor);
if(height == 0)
height = static_cast<size_t>(
static_cast<float>(mChain->getViewport()->getActualHeight()) * def->heightFactor);
/// Make the tetxure
RenderTarget* rendTarget;
if (def->formatList.size() > 1)
{
String MRTbaseName = "c" + StringConverter::toString(dummyCounter++) +
"/" + def->name + "/" + mChain->getViewport()->getTarget()->getName();
MultiRenderTarget* mrt =
Root::getSingleton().getRenderSystem()->createMultiRenderTarget(MRTbaseName);
mLocalMRTs[def->name] = mrt;
// create and bind individual surfaces
size_t atch = 0;
for (PixelFormatList::iterator p = def->formatList.begin();
p != def->formatList.end(); ++p, ++atch)
{
TexturePtr tex = TextureManager::getSingleton().createManual(
MRTbaseName + "/" + StringConverter::toString(atch),
ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME, TEX_TYPE_2D,
(uint)width, (uint)height, 0, *p, TU_RENDERTARGET );
RenderTexture* rt = tex->getBuffer()->getRenderTarget();
rt->setAutoUpdated(false);
mrt->bindSurface(atch, rt);
// Also add to local textures so we can look up
String mrtLocalName = getMRTTexLocalName(def->name, atch);
mLocalTextures[mrtLocalName] = tex;
}
rendTarget = mrt;
}
else
{
String texName = "c" + StringConverter::toString(dummyCounter++) +
"/" + def->name + "/" + mChain->getViewport()->getTarget()->getName();
// space in the name mixup the cegui in the compositor demo
// this is an auto generated name - so no spaces can't hart us.
std::replace( texName.begin(), texName.end(), ' ', '_' );
TexturePtr tex = TextureManager::getSingleton().createManual(
texName,
ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME, TEX_TYPE_2D,
(uint)width, (uint)height, 0, def->formatList[0], TU_RENDERTARGET, 0,
hwGammaWrite, fsaa);
rendTarget = tex->getBuffer()->getRenderTarget();
mLocalTextures[def->name] = tex;
}
/// Set up viewport over entire texture
rendTarget->setAutoUpdated( false );
Camera* camera = mChain->getViewport()->getCamera();
// Save last viewport and current aspect ratio
Viewport* oldViewport = camera->getViewport();
Real aspectRatio = camera->getAspectRatio();
Viewport* v = rendTarget->addViewport( camera );
v->setClearEveryFrame( false );
v->setOverlaysEnabled( false );
v->setBackgroundColour( ColourValue( 0, 0, 0, 0 ) );
// Should restore aspect ratio, in case of auto aspect ratio
// enabled, it'll changed when add new viewport.
camera->setAspectRatio(aspectRatio);
// Should restore last viewport, i.e. never disturb user code
// which might based on that.
camera->_notifyViewport(oldViewport);
}
}
