void HDRListener::notifyCompositor(CompositorInstance* instance)
{
// Get some RTT dimensions for later calculations
CompositionTechnique::TextureDefinitionIterator defIter =
instance->getTechnique()->getTextureDefinitionIterator();
while (defIter.hasMoreElements())
{
CompositionTechnique::TextureDefinition* def =
defIter.getNext();
if (def->name == "rt_bloom0")
{
mBloomSize = (int)def->width; // should be square
// Calculate gaussian texture offsets & weights
float deviation = 3.0f;
float texelSize = 1.0f / (float)mBloomSize;
// central sample, no offset
mBloomTexOffsetsHorz[0][0] = 0.0f;
mBloomTexOffsetsHorz[0][1] = 0.0f;
mBloomTexOffsetsVert[0][0] = 0.0f;
mBloomTexOffsetsVert[0][1] = 0.0f;
mBloomTexWeights[0][0] = mBloomTexWeights[0][1] =
mBloomTexWeights[0][2] = Math::gaussianDistribution(0, 0, deviation);
mBloomTexWeights[0][3] = 1.0f;
// 'pre' samples
for(int i = 1; i < 8; ++i)
{
mBloomTexWeights[i][0] = mBloomTexWeights[i][1] =
mBloomTexWeights[i][2] = 1.25f * Math::gaussianDistribution(i, 0, deviation);
mBloomTexWeights[i][3] = 1.0f;
mBloomTexOffsetsHorz[i][0] = i * texelSize;
mBloomTexOffsetsHorz[i][1] = 0.0f;
mBloomTexOffsetsVert[i][0] = 0.0f;
mBloomTexOffsetsVert[i][1] = i * texelSize;
}
// 'post' samples
for(int i = 8; i < 15; ++i)
{
mBloomTexWeights[i][0] = mBloomTexWeights[i][1] =
mBloomTexWeights[i][2] = mBloomTexWeights[i - 7][0];
mBloomTexWeights[i][3] = 1.0f;
mBloomTexOffsetsHorz[i][0] = -mBloomTexOffsetsHorz[i - 7][0];
mBloomTexOffsetsHorz[i][1] = 0.0f;
mBloomTexOffsetsVert[i][0] = 0.0f;
mBloomTexOffsetsVert[i][1] = -mBloomTexOffsetsVert[i - 7][1];
}
}
}
}
//-----------------------------------------------------------------------
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 Sample_Compositor::checkBoxToggled(OgreBites::CheckBox * box)
{
if (Ogre::StringUtil::startsWith(box->getName(), "Compositor_", false))
{
String compositorName = box->getCaption();
String activeTex = mDebugTextureSelectMenu->getSelectedItem();
if (!box->isChecked())
{
//Remove the items from the debug menu and remove debug texture if from disabled compositor
bool debuggingRemovedTex = StringUtil::startsWith(activeTex, compositorName, false);
if (debuggingRemovedTex)
{
mDebugTextureTUS->setContentType(TextureUnitState::CONTENT_NAMED);
mDebugTextureSelectMenu->selectItem(0, true);
}
for (unsigned int i = 1; i < mDebugTextureSelectMenu->getNumItems(); i++)
{
if (StringUtil::startsWith(mDebugTextureSelectMenu->getItems()[i], compositorName, false))
{
mDebugTextureSelectMenu->removeItem(i);
i--;
}
}
if (!debuggingRemovedTex)
{
//Selection clears itself when removing items. Restore.
mDebugTextureSelectMenu->selectItem(activeTex, false);
}
}
CompositorManager::getSingleton().setCompositorEnabled(mViewport, compositorName, box->isChecked());
if (box->isChecked())
{
//Add the items to the selectable texture menu
CompositorInstance* instance = CompositorManager::getSingleton().getCompositorChain(mViewport)->getCompositor(compositorName);
if (instance)
{
CompositionTechnique::TextureDefinitionIterator it = instance->getTechnique()->getTextureDefinitionIterator();
while (it.hasMoreElements())
{
CompositionTechnique::TextureDefinition* texDef = it.getNext();
size_t numTextures = texDef->formatList.size();
if (numTextures > 1)
{
for (size_t i=0; i<numTextures; i++)
{
//Dirty string composition. NOT ROBUST!
mDebugTextureSelectMenu->addItem(compositorName + ";" + texDef->name + ";" +
Ogre::StringConverter::toString((Ogre::uint32)i));
}
}
else
{
mDebugTextureSelectMenu->addItem(compositorName + ";" + texDef->name);
}
}
mDebugTextureSelectMenu->selectItem(activeTex, false);
}
}
}
}
//-----------------------------------------------------------------------
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 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);
}
}
