bool DecalManager::prepRenderImage(SceneState* state, const U32 stateKey,
const U32 /*startZone*/, const bool /*modifyBaseState*/)
{
PROFILE_SCOPE( DecalManager_RenderDecals );
if ( !smDecalsOn || !mData )
return false;
if (isLastState(state, stateKey))
return false;
setLastState(state, stateKey);
if ( !state->isDiffusePass() && !state->isReflectPass() )
return false;
PROFILE_START( DecalManager_RenderDecals_SphereTreeCull );
// Grab this before anything here changes it.
mCuller = state->getFrustum();
// Populate vector of decal instances to be rendered with all
// decals from visible decal spheres.
mDecalQueue.clear();
const Vector<DecalSphere*> &grid = mData->getGrid();
for ( U32 i = 0; i < grid.size(); i++ )
{
const DecalSphere *decalSphere = grid[i];
const SphereF &worldSphere = decalSphere->mWorldSphere;
if ( !mCuller.sphereInFrustum( worldSphere.center, worldSphere.radius ) )
continue;
// TODO: If each sphere stored its largest decal instance we
// could do an LOD step on it here and skip adding any of the
// decals in the sphere.
mDecalQueue.merge( decalSphere->mItems );
}
PROFILE_END();
PROFILE_START( DecalManager_RenderDecals_Update );
const U32 &curSimTime = Sim::getCurrentTime();
const Point2I &viewportExtent = state->getViewportExtent();
Point3F cameraOffset;
F32 decalSize,
pixelRadius;
U32 delta, diff;
DecalInstance *dinst;
// Loop through DecalQueue once for preRendering work.
// 1. Update DecalInstance fade (over time)
// 2. Clip geometry if flagged to do so.
// 3. Calculate lod - if decal is far enough away it will not render.
for ( U32 i = 0; i < mDecalQueue.size(); i++ )
{
dinst = mDecalQueue[i];
// LOD calculation.
// See TSShapeInstance::setDetailFromDistance for more
// information on these calculations.
decalSize = getMax( dinst->mSize, 0.001f );
pixelRadius = dinst->calcPixelRadius( state );
// Need to clamp here.
if ( pixelRadius < dinst->calcEndPixRadius( viewportExtent ) )
{
mDecalQueue.erase_fast( i );
i--;
continue;
}
// We're gonna try to render this decal... so do any
// final adjustments to it before rendering.
// Update fade and delete expired.
if ( !( dinst->mFlags & PermanentDecal || dinst->mFlags & CustomDecal ) )
{
delta = ( curSimTime - dinst->mCreateTime );
if ( delta > dinst->mDataBlock->lifeSpan )
{
diff = delta - dinst->mDataBlock->lifeSpan;
dinst->mVisibility = 1.0f - (F32)diff / (F32)dinst->mDataBlock->fadeTime;
if ( dinst->mVisibility <= 0.0f )
{
mDecalQueue.erase_fast( i );
removeDecal( dinst );
i--;
continue;
}
}
}
// Build clipped geometry for this decal if needed.
if ( dinst->mFlags & ClipDecal/* && !( dinst->mFlags & CustomDecal ) */)
{
// Turn off the flag so we don't continually try to clip
// if it fails.
if(!clipDecal( dinst ))
{
dinst->mFlags = dinst->mFlags & ~ClipDecal;
if ( !(dinst->mFlags & CustomDecal) )
{
// Clipping failed to get any geometry...
// Remove it from the render queue.
mDecalQueue.erase_fast( i );
i--;
// If the decal is one placed at run-time (not the editor)
// then we should also permanently delete the decal instance.
if ( !(dinst->mFlags & SaveDecal) )
{
removeDecal( dinst );
}
}
// If this is a decal placed by the editor it will be
// flagged to attempt clipping again the next time it is
// modified. For now we just skip rendering it.
continue;
}
}
// If we get here and the decal still does not have any geometry
// skip rendering it. It must be an editor placed decal that failed
// to clip any geometry but has not yet been flagged to try again.
if ( !dinst->mVerts || dinst->mVertCount == 0 || dinst->mIndxCount == 0 )
{
mDecalQueue.erase_fast( i );
i--;
continue;
}
//
F32 alpha = pixelRadius / (dinst->mDataBlock->startPixRadius * decalSize) - 1.0f;
if ( dinst->mFlags & CustomDecal )
{
alpha = mClampF( alpha, 0.0f, 1.0f );
alpha *= dinst->mVisibility;
}
else
alpha = mClampF( alpha * dinst->mVisibility, 0.0f, 1.0f );
//
for ( U32 v = 0; v < dinst->mVertCount; v++ )
dinst->mVerts[v].color.set( 255, 255, 255, alpha * 255.0f );
}
PROFILE_END();
if ( mDecalQueue.empty() )
return false;
// Sort queued decals...
// 1. Editor decals - in render priority order first, creation time second, and material third.
// 2. Dynamic decals - in render priority order first and creation time second.
//
// With the constraint that decals with different render priority cannot
// be rendered together in the same draw call.
PROFILE_START( DecalManager_RenderDecals_Sort );
dQsort( mDecalQueue.address(), mDecalQueue.size(), sizeof(DecalInstance*), cmpDecalRenderOrder );
PROFILE_END();
PROFILE_SCOPE( DecalManager_RenderDecals_RenderBatch );
mPrimBuffs.clear();
mVBs.clear();
RenderPassManager *renderPass = state->getRenderPass();
// Base render instance for convenience we use for convenience.
// Data shared by all instances we allocate below can be copied
// from the base instance at the same time.
MeshRenderInst baseRenderInst;
baseRenderInst.clear();
MatrixF *tempMat = renderPass->allocUniqueXform( MatrixF( true ) );
MathUtils::getZBiasProjectionMatrix( gDecalBias, mCuller, tempMat );
baseRenderInst.projection = tempMat;
baseRenderInst.objectToWorld = &MatrixF::Identity;
baseRenderInst.worldToCamera = renderPass->allocSharedXform(RenderPassManager::View);
baseRenderInst.type = RenderPassManager::RIT_Decal;
// Make it the sort distance the max distance so that
// it renders after all the other opaque geometry in
// the prepass bin.
baseRenderInst.sortDistSq = F32_MAX;
// Get the best lights for the current camera position.
LightManager *lm = state->getLightManager();
if ( lm )
{
lm->setupLights( NULL,
mCuller.getPosition(),
mCuller.getTransform().getForwardVector(),
mCuller.getFarDist() );
lm->getBestLights( baseRenderInst.lights, 4 );
lm->resetLights();
}
Vector<DecalBatch> batches;
DecalBatch *currentBatch = NULL;
// Loop through DecalQueue collecting them into render batches.
for ( U32 i = 0; i < mDecalQueue.size(); i++ )
{
DecalInstance *decal = mDecalQueue[i];
DecalData *data = decal->mDataBlock;
Material *mat = data->getMaterial();
if ( currentBatch == NULL )
{
// Start a new batch, beginning with this decal.
batches.increment();
currentBatch = &batches.last();
currentBatch->startDecal = i;
currentBatch->decalCount = 1;
currentBatch->iCount = decal->mIndxCount;
currentBatch->vCount = decal->mVertCount;
currentBatch->mat = mat;
currentBatch->matInst = decal->mDataBlock->getMaterialInstance();
currentBatch->priority = decal->getRenderPriority();
currentBatch->dynamic = !(decal->mFlags & SaveDecal);
continue;
}
if ( currentBatch->iCount + decal->mIndxCount >= smMaxIndices ||
currentBatch->vCount + decal->mVertCount >= smMaxVerts ||
currentBatch->mat != mat ||
currentBatch->priority != decal->getRenderPriority() ||
decal->mCustomTex )
{
// End batch.
currentBatch = NULL;
i--;
continue;
}
// Add on to current batch.
currentBatch->decalCount++;
currentBatch->iCount += decal->mIndxCount;
currentBatch->vCount += decal->mVertCount;
}
// Loop through batches allocating buffers and submitting render instances.
for ( U32 i = 0; i < batches.size(); i++ )
{
DecalBatch ¤tBatch = batches[i];
// Allocate buffers...
GFXVertexBufferHandle<DecalVertex> vb;
vb.set( GFX, currentBatch.vCount, GFXBufferTypeDynamic );
DecalVertex *vpPtr = vb.lock();
GFXPrimitiveBufferHandle pb;
pb.set( GFX, currentBatch.iCount, 0, GFXBufferTypeDynamic );
U16 *pbPtr;
pb.lock( &pbPtr );
// Copy data into the buffers from all decals in this batch...
U32 lastDecal = currentBatch.startDecal + currentBatch.decalCount;
U32 voffset = 0;
U32 ioffset = 0;
// This is an ugly hack for ProjectedShadow!
GFXTextureObject *customTex = NULL;
for ( U32 j = currentBatch.startDecal; j < lastDecal; j++ )
{
DecalInstance *dinst = mDecalQueue[j];
for ( U32 k = 0; k < dinst->mIndxCount; k++ )
{
*( pbPtr + ioffset + k ) = dinst->mIndices[k] + voffset;
}
ioffset += dinst->mIndxCount;
dMemcpy( vpPtr + voffset, dinst->mVerts, sizeof( DecalVertex ) * dinst->mVertCount );
voffset += dinst->mVertCount;
// Ugly hack for ProjectedShadow!
if ( (dinst->mFlags & CustomDecal) && dinst->mCustomTex != NULL )
customTex = *dinst->mCustomTex;
}
AssertFatal( ioffset == currentBatch.iCount, "bad" );
AssertFatal( voffset == currentBatch.vCount, "bad" );
pb.unlock();
vb.unlock();
// DecalManager must hold handles to these buffers so they remain valid,
// we don't actually use them elsewhere.
mPrimBuffs.push_back( pb );
mVBs.push_back( vb );
// Submit render inst...
MeshRenderInst *ri = renderPass->allocInst<MeshRenderInst>();
*ri = baseRenderInst;
ri->primBuff = &mPrimBuffs.last();
ri->vertBuff = &mVBs.last();
ri->matInst = currentBatch.matInst;
ri->prim = renderPass->allocPrim();
ri->prim->type = GFXTriangleList;
ri->prim->minIndex = 0;
ri->prim->startIndex = 0;
ri->prim->numPrimitives = currentBatch.iCount / 3;
ri->prim->startVertex = 0;
ri->prim->numVertices = currentBatch.vCount;
// Ugly hack for ProjectedShadow!
if ( customTex )
ri->miscTex = customTex;
// The decal bin will contain render instances for both decals and decalRoad's.
// Dynamic decals render last, then editor decals and roads in priority order.
// DefaultKey is sorted in descending order.
ri->defaultKey = currentBatch.dynamic ? 0xFFFFFFFF : (U32)currentBatch.priority;
ri->defaultKey2 = 1;//(U32)lastDecal->mDataBlock;
renderPass->addInst( ri );
}
return false;
}
void DecalRoad::prepRenderImage( SceneRenderState* state )
{
PROFILE_SCOPE( DecalRoad_prepRenderImage );
if ( mNodes.size() <= 1 ||
mBatches.size() == 0 ||
!mMatInst ||
state->isShadowPass() )
return;
// If we don't have a material instance after the override then
// we can skip rendering all together.
BaseMatInstance *matInst = state->getOverrideMaterial( mMatInst );
if ( !matInst )
return;
RenderPassManager *renderPass = state->getRenderPass();
// Debug RenderInstance
// Only when editor is open.
if ( smEditorOpen )
{
ObjectRenderInst *ri = renderPass->allocInst<ObjectRenderInst>();
ri->type = RenderPassManager::RIT_Editor;
ri->renderDelegate.bind( this, &DecalRoad::_debugRender );
state->getRenderPass()->addInst( ri );
}
// Normal Road RenderInstance
// Always rendered when the editor is not open
// otherwise obey the smShowRoad flag
if ( !smShowRoad && smEditorOpen )
return;
const Frustum &frustum = state->getCameraFrustum();
MeshRenderInst coreRI;
coreRI.clear();
coreRI.objectToWorld = &MatrixF::Identity;
coreRI.worldToCamera = renderPass->allocSharedXform(RenderPassManager::View);
MatrixF *tempMat = renderPass->allocUniqueXform( MatrixF( true ) );
MathUtils::getZBiasProjectionMatrix( gDecalBias, frustum, tempMat );
coreRI.projection = tempMat;
coreRI.type = RenderPassManager::RIT_Decal;
coreRI.vertBuff = &mVB;
coreRI.primBuff = &mPB;
coreRI.matInst = matInst;
// Make it the sort distance the max distance so that
// it renders after all the other opaque geometry in
// the prepass bin.
coreRI.sortDistSq = F32_MAX;
// If we need lights then set them up.
if ( matInst->isForwardLit() )
{
LightQuery query;
query.init( getWorldSphere() );
query.getLights( coreRI.lights, 8 );
}
U32 startBatchIdx = -1;
U32 endBatchIdx = 0;
for ( U32 i = 0; i < mBatches.size(); i++ )
{
const RoadBatch &batch = mBatches[i];
const bool isVisible = !frustum.isCulled( batch.bounds );
if ( isVisible )
{
// If this is the start of a set of batches.
if ( startBatchIdx == -1 )
endBatchIdx = startBatchIdx = i;
// Else we're extending the end batch index.
else
++endBatchIdx;
// If this isn't the last batch then continue.
if ( i < mBatches.size()-1 )
continue;
}
// We we still don't have a start batch, so skip.
if ( startBatchIdx == -1 )
continue;
// Render this set of batches.
const RoadBatch &startBatch = mBatches[startBatchIdx];
const RoadBatch &endBatch = mBatches[endBatchIdx];
U32 startVert = startBatch.startVert;
U32 startIdx = startBatch.startIndex;
U32 vertCount = endBatch.endVert - startVert;
U32 idxCount = ( endBatch.endIndex - startIdx ) + 1;
U32 triangleCount = idxCount / 3;
AssertFatal( startVert + vertCount <= mVertCount, "DecalRoad, bad draw call!" );
AssertFatal( startIdx + triangleCount < mTriangleCount * 3, "DecalRoad, bad draw call!" );
MeshRenderInst *ri = renderPass->allocInst<MeshRenderInst>();
*ri = coreRI;
ri->prim = renderPass->allocPrim();
ri->prim->type = GFXTriangleList;
ri->prim->minIndex = 0;
ri->prim->startIndex = startIdx;
ri->prim->numPrimitives = triangleCount;
ri->prim->startVertex = 0;
ri->prim->numVertices = endBatch.endVert + 1;
// For sorting we first sort by render priority
// and then by objectId.
//
// Since a road can submit more than one render instance, we want all
// draw calls for a single road to occur consecutively, since they
// could use the same vertex buffer.
ri->defaultKey = mRenderPriority << 0 | mId << 16;
ri->defaultKey2 = 0;
renderPass->addInst( ri );
// Reset the batching.
startBatchIdx = -1;
}
}
bool DecalRoad::prepRenderImage( SceneState* state,
const U32 stateKey,
const U32 startZone,
const bool modifyBaseZoneState)
{
if ( mNodes.size() <= 1 ||
isLastState(state, stateKey) ||
mBatches.size() == 0 ||
!mMatInst ||
state->isShadowPass() )
return false;
// Set Last State.
setLastState( state, stateKey );
// Is Object Rendered?
if ( !state->isObjectRendered( this ) )
return false;
RenderPassManager *renderPass = state->getRenderPass();
// Debug RenderInstance
// Only when editor is open.
if ( smEditorOpen )
{
ObjectRenderInst *ri = renderPass->allocInst<ObjectRenderInst>();
ri->type = RenderPassManager::RIT_Object;
ri->renderDelegate.bind( this, &DecalRoad::_debugRender );
state->getRenderPass()->addInst( ri );
}
// Normal Road RenderInstance
// Always rendered when the editor is not open
// otherwise obey the smShowRoad flag
if ( !smShowRoad && smEditorOpen )
return false;
const Frustum &frustum = state->getFrustum();
MeshRenderInst coreRI;
coreRI.clear();
coreRI.objectToWorld = &MatrixF::Identity;
coreRI.worldToCamera = renderPass->allocSharedXform(RenderPassManager::View);
MatrixF *tempMat = renderPass->allocUniqueXform( MatrixF( true ) );
MathUtils::getZBiasProjectionMatrix( gDecalBias, frustum, tempMat );
coreRI.projection = tempMat;
coreRI.type = RenderPassManager::RIT_Decal;
coreRI.matInst = mMatInst;
coreRI.vertBuff = &mVB;
coreRI.primBuff = &mPB;
// Make it the sort distance the max distance so that
// it renders after all the other opaque geometry in
// the prepass bin.
coreRI.sortDistSq = F32_MAX;
// Get the light manager and setup lights
LightManager *lm = state->getLightManager();
if ( lm )
{
lm->setupLights( this, getWorldSphere() );
lm->getBestLights( coreRI.lights, 8 );
}
U32 startBatchIdx = -1;
U32 endBatchIdx = 0;
for ( U32 i = 0; i < mBatches.size(); i++ )
{
// TODO: visibility is bugged... must fix!
//const RoadBatch &batch = mBatches[i];
//const bool isVisible = frustum.intersects( batch.bounds );
if ( true /*isVisible*/ )
{
// If this is the start of a set of batches.
if ( startBatchIdx == -1 )
endBatchIdx = startBatchIdx = i;
// Else we're extending the end batch index.
else
++endBatchIdx;
// If this isn't the last batch then continue.
if ( i < mBatches.size()-1 )
continue;
}
// We we still don't have a start batch, so skip.
if ( startBatchIdx == -1 )
continue;
// Render this set of batches.
const RoadBatch &startBatch = mBatches[startBatchIdx]; // mBatches[0];
const RoadBatch &endBatch = mBatches[endBatchIdx]; // mBatches.last();
U32 startVert = startBatch.startVert;
U32 startIdx = startBatch.startIndex;
U32 vertCount = endBatch.endVert - startVert;
U32 idxCount = ( endBatch.endIndex - startIdx ) + 1;
U32 triangleCount = idxCount / 3;
AssertFatal( startVert + vertCount <= mVertCount, "DecalRoad, bad draw call!" );
AssertFatal( startIdx + triangleCount < mTriangleCount * 3, "DecalRoad, bad draw call!" );
MeshRenderInst *ri = renderPass->allocInst<MeshRenderInst>();
*ri = coreRI;
ri->prim = renderPass->allocPrim();
ri->prim->type = GFXTriangleList;
ri->prim->minIndex = 0;
ri->prim->startIndex = startIdx;
ri->prim->numPrimitives = triangleCount;
ri->prim->startVertex = startVert;
ri->prim->numVertices = vertCount;
// For sorting we first sort by render priority
// and then by objectId.
//
// Since a road can submit more than one render instance, we want all
// draw calls for a single road to occur consecutively, since they
// could use the same vertex buffer.
ri->defaultKey = mRenderPriority << 0 | mId << 16;
ri->defaultKey2 = 0;
renderPass->addInst( ri );
// Reset the batching.
startBatchIdx = -1;
}
return false;
}