void TerrainBlock::_renderBlock( SceneRenderState *state )
{
PROFILE_SCOPE( TerrainBlock_RenderBlock );
// Prevent rendering shadows if feature is disabled
if ( !mCastShadows && state->isShadowPass() )
return;
MatrixF worldViewXfm = state->getWorldViewMatrix();
worldViewXfm.mul( getRenderTransform() );
MatrixF worldViewProjXfm = state->getProjectionMatrix();
worldViewProjXfm.mul( worldViewXfm );
const MatrixF &objectXfm = getRenderWorldTransform();
Point3F objCamPos = state->getDiffuseCameraPosition();
objectXfm.mulP( objCamPos );
// Get the shadow material.
if ( !mDefaultMatInst )
mDefaultMatInst = TerrainCellMaterial::getShadowMat();
// Make sure we have a base material.
if ( !mBaseMaterial )
{
mBaseMaterial = new TerrainCellMaterial();
mBaseMaterial->init( this, 0, false, false, true );
}
// Did the detail layers change?
if ( mDetailsDirty )
{
_updateMaterials();
mDetailsDirty = false;
}
// If the layer texture has been cleared or is
// dirty then update it.
if ( mLayerTex.isNull() || mLayerTexDirty )
_updateLayerTexture();
// If the layer texture is dirty or we lost the base
// texture then regenerate it.
if ( mLayerTexDirty || mBaseTex.isNull() )
{
_updateBaseTexture( false );
mLayerTexDirty = false;
}
static Vector<TerrCell*> renderCells;
renderCells.clear();
mCell->cullCells( state,
objCamPos,
&renderCells );
RenderPassManager *renderPass = state->getRenderPass();
MatrixF *riObjectToWorldXfm = renderPass->allocUniqueXform( getRenderTransform() );
const bool isColorDrawPass = state->isDiffusePass() || state->isReflectPass();
// This is here for shadows mostly... it allows the
// proper shadow material to be generated.
BaseMatInstance *defaultMatInst = state->getOverrideMaterial( mDefaultMatInst );
// Only pass and use the light manager if this is not a shadow pass.
LightManager *lm = NULL;
if ( isColorDrawPass )
lm = LIGHTMGR;
for ( U32 i=0; i < renderCells.size(); i++ )
{
TerrCell *cell = renderCells[i];
// Ok this cell is fit to render.
TerrainRenderInst *inst = renderPass->allocInst<TerrainRenderInst>();
// Setup lights for this cell.
if ( lm )
{
SphereF bounds = cell->getSphereBounds();
getRenderTransform().mulP( bounds.center );
LightQuery query;
query.init( bounds );
query.getLights( inst->lights, 8 );
}
GFXVertexBufferHandleBase vertBuff;
GFXPrimitiveBufferHandle primBuff;
cell->getRenderPrimitive( &inst->prim, &vertBuff, &primBuff );
inst->mat = defaultMatInst;
inst->vertBuff = vertBuff.getPointer();
if ( primBuff.isValid() )
{
// Use the cell's custom primitive buffer
inst->primBuff = primBuff.getPointer();
}
else
{
// Use the standard primitive buffer for this cell
inst->primBuff = mPrimBuffer.getPointer();
}
inst->objectToWorldXfm = riObjectToWorldXfm;
// If we're not drawing to the shadow map then we need
// to include the normal rendering materials.
if ( isColorDrawPass )
{
const SphereF &bounds = cell->getSphereBounds();
F32 sqDist = ( bounds.center - objCamPos ).lenSquared();
F32 radiusSq = mSquared( ( mMaxDetailDistance + bounds.radius ) * smDetailScale );
// If this cell is near enough to get detail textures then
// use the full detail mapping material. Else we use the
// simple base only material.
if ( !state->isReflectPass() && sqDist < radiusSq )
inst->cellMat = cell->getMaterial();
else if ( state->isReflectPass() )
inst->cellMat = mBaseMaterial->getReflectMat();
else
inst->cellMat = mBaseMaterial;
}
inst->defaultKey = (U32)cell->getMaterials();
// Submit it for rendering.
renderPass->addInst( inst );
}
// Trigger the debug rendering.
if ( state->isDiffusePass() &&
!renderCells.empty() &&
smDebugRender )
{
// Store the render cells for later.
mDebugCells = renderCells;
ObjectRenderInst *ri = state->getRenderPass()->allocInst<ObjectRenderInst>();
ri->renderDelegate.bind( this, &TerrainBlock::_renderDebug );
ri->type = RenderPassManager::RIT_Editor;
state->getRenderPass()->addInst( ri );
}
}
void OcclusionVolume::buildSilhouette( const SceneCameraState& cameraState, Vector< Point3F >& outPoints )
{
// Extract the silhouette of the polyhedron. This works differently
// depending on whether we project orthogonally or in perspective.
TempAlloc< U32 > indices( mPolyhedron.getNumPoints() );
U32 numPoints;
if( cameraState.getFrustum().isOrtho() )
{
// Transform the view direction into object space.
Point3F osViewDir;
getWorldTransform().mulV( cameraState.getViewDirection(), &osViewDir );
// And extract the silhouette.
SilhouetteExtractorOrtho< PolyhedronType > extractor( mPolyhedron );
numPoints = extractor.extractSilhouette( osViewDir, indices, indices.size );
}
else
{
// Create a transform to go from view space to object space.
MatrixF camView( true );
camView.scale( Point3F( 1.0f / getScale().x, 1.0f / getScale().y, 1.0f / getScale().z ) );
camView.mul( getRenderWorldTransform() );
camView.mul( cameraState.getViewWorldMatrix() );
// Do a perspective-correct silhouette extraction.
numPoints = mSilhouetteExtractor.extractSilhouette(
camView,
indices, indices.size );
}
// If we haven't yet, transform the polyhedron's points
// to world space.
if( mTransformDirty )
{
const U32 numPoints = mPolyhedron.getNumPoints();
const PolyhedronType::PointType* points = getPolyhedron().getPoints();
mWSPoints.setSize( numPoints );
for( U32 i = 0; i < numPoints; ++ i )
{
Point3F p = points[ i ];
p.convolve( getScale() );
getTransform().mulP( p, &mWSPoints[ i ] );
}
mTransformDirty = false;
}
// Now store the points.
outPoints.setSize( numPoints );
for( U32 i = 0; i < numPoints; ++ i )
outPoints[ i ] = mWSPoints[ indices[ i ] ];
}
void TSStatic::prepRenderImage( SceneRenderState* state )
{
if( !mShapeInstance )
return;
Point3F cameraOffset;
getRenderTransform().getColumn(3,&cameraOffset);
cameraOffset -= state->getDiffuseCameraPosition();
F32 dist = cameraOffset.len();
if (dist < 0.01f)
dist = 0.01f;
F32 invScale = (1.0f/getMax(getMax(mObjScale.x,mObjScale.y),mObjScale.z));
if ( mForceDetail == -1 )
mShapeInstance->setDetailFromDistance( state, dist * invScale );
else
mShapeInstance->setCurrentDetail( mForceDetail );
if ( mShapeInstance->getCurrentDetail() < 0 )
return;
GFXTransformSaver saver;
// Set up our TS render state.
TSRenderState rdata;
rdata.setSceneState( state );
rdata.setFadeOverride( 1.0f );
rdata.setOriginSort( mUseOriginSort );
// If we have submesh culling enabled then prepare
// the object space frustum to pass to the shape.
Frustum culler;
if ( mMeshCulling )
{
culler = state->getFrustum();
MatrixF xfm( true );
xfm.scale( Point3F::One / getScale() );
xfm.mul( getRenderWorldTransform() );
xfm.mul( culler.getTransform() );
culler.setTransform( xfm );
rdata.setCuller( &culler );
}
// We might have some forward lit materials
// so pass down a query to gather lights.
LightQuery query;
query.init( getWorldSphere() );
rdata.setLightQuery( &query );
MatrixF mat = getRenderTransform();
mat.scale( mObjScale );
GFX->setWorldMatrix( mat );
mShapeInstance->animate();
mShapeInstance->render( rdata );
if ( mRenderNormalScalar > 0 )
{
ObjectRenderInst *ri = state->getRenderPass()->allocInst<ObjectRenderInst>();
ri->renderDelegate.bind( this, &TSStatic::_renderNormals );
ri->type = RenderPassManager::RIT_Editor;
state->getRenderPass()->addInst( ri );
}
}