//////////////////////////////////////////////////////////////////////////
// findAABB
MaAABB MdlMesh::findAABB() const
{
MaAABB MeshBounds;
for( BcU32 VertIdx = 0; VertIdx < aVertices_.size(); ++VertIdx )
{
MeshBounds.expandBy( aVertices_[ VertIdx ].Position_ );
}
return MeshBounds;
}
//////////////////////////////////////////////////////////////////////////
// transform
MaAABB MaAABB::transform( const MaMat4d& Transform ) const
{
MaAABB NewAABB;
// Add transformed corners.
NewAABB.expandBy( corner( 0 ) * Transform );
NewAABB.expandBy( corner( 1 ) * Transform );
NewAABB.expandBy( corner( 2 ) * Transform );
NewAABB.expandBy( corner( 3 ) * Transform );
NewAABB.expandBy( corner( 4 ) * Transform );
NewAABB.expandBy( corner( 5 ) * Transform );
NewAABB.expandBy( corner( 6 ) * Transform );
NewAABB.expandBy( corner( 7 ) * Transform );
return NewAABB;
}
//////////////////////////////////////////////////////////////////////////
// classify
MaAABB::eClassify MaAABB::classify( const MaAABB& AABB ) const
{
BcU32 PointsInside = 0;
for( BcU32 i = 0; i < 8; ++i )
{
MaVec3d Point = AABB.corner( i );
if( ( Point.x() >= Min_.x() && Point.x() <= Max_.x() ) &&
( Point.y() >= Min_.y() && Point.y() <= Max_.y() ) &&
( Point.z() >= Min_.z() && Point.z() <= Max_.z() ) )
{
PointsInside++;
}
}
if( PointsInside == 8 )
{
return bcBC_INSIDE;
}
if( PointsInside > 0 )
{
return bcBC_SPANNING;
}
return bcBC_OUTSIDE;
}
//////////////////////////////////////////////////////////////////////////
// intersect
BcBool ScnViewComponent::intersect( const MaAABB& AABB ) const
{
MaVec3d Centre = AABB.centre();
BcF32 Radius = ( AABB.max() - AABB.min() ).magnitude() * 0.5f;
BcF32 Distance;
for( BcU32 i = 0; i < 6; ++i )
{
Distance = FrustumPlanes_[ i ].distance( Centre );
if( Distance > Radius )
{
return BcFalse;
}
}
return BcTrue;
}
//////////////////////////////////////////////////////////////////////////pmatr
// updateNodes
void ScnModelComponent::updateNodes( MaMat4d RootMatrix )
{
MaAABB FullAABB;
// Wait for previous upload to finish.
UploadFence_.wait();
// Update nodes.
BcU32 NoofNodes = Model_->pHeader_->NoofNodes_;
for( BcU32 NodeIdx = 0; NodeIdx < NoofNodes; ++NodeIdx )
{
ScnModelNodeTransformData* pNodeTransformData = &pNodeTransformData_[ NodeIdx ];
ScnModelNodePropertyData* pNodePropertyData = &Model_->pNodePropertyData_[ NodeIdx ];
// Check parent index and process.
if( pNodePropertyData->ParentIndex_ != BcErrorCode )
{
ScnModelNodeTransformData* pParentScnModelNodeTransformData = &pNodeTransformData_[ pNodePropertyData->ParentIndex_ ];
pNodeTransformData->WorldTransform_ = pNodeTransformData->LocalTransform_ * pParentScnModelNodeTransformData->WorldTransform_;
}
else
{
pNodeTransformData->WorldTransform_ = pNodeTransformData->LocalTransform_ * RootMatrix;
}
}
// Calculate bounds.
BcU32 NoofPrimitives = Model_->pHeader_->NoofPrimitives_;
for( BcU32 PrimitiveIdx = 0; PrimitiveIdx < NoofPrimitives; ++PrimitiveIdx )
{
ScnModelMeshRuntime* pNodeMeshRuntime = &Model_->MeshRuntimes_[ PrimitiveIdx ];
ScnModelMeshData* pNodeMeshData = &Model_->pMeshData_[ pNodeMeshRuntime->MeshDataIndex_ ];
// Special case the skinned models for now.
if( pNodeMeshData->IsSkinned_ == BcFalse )
{
ScnModelNodeTransformData* pNodeTransformData = &pNodeTransformData_[ pNodeMeshData->NodeIndex_ ];
MaAABB PrimitiveAABB = pNodeMeshData->AABB_;
FullAABB.expandBy( PrimitiveAABB.transform( pNodeTransformData->WorldTransform_ ) );
}
else
{
MaAABB SkeletalAABB;
for( BcU32 Idx = 0; Idx < SCN_MODEL_BONE_PALETTE_SIZE; ++Idx )
{
BcU32 BoneIndex = pNodeMeshData->BonePalette_[ Idx ];
if( BoneIndex != BcErrorCode )
{
// Get the distance from the parent bone, and make an AABB that size.
ScnModelNodePropertyData* pNodePropertyData = &Model_->pNodePropertyData_[ BoneIndex ];
if( pNodePropertyData->ParentIndex_ != BcErrorCode && pNodePropertyData->IsBone_ )
{
ScnModelNodeTransformData* pNodeTransformData = &pNodeTransformData_[ BoneIndex ];
ScnModelNodeTransformData* pParentNodeTransformData = &pNodeTransformData_[ pNodePropertyData->ParentIndex_ ];
MaAABB NewAABB( pNodeTransformData->WorldTransform_.translation(), pParentNodeTransformData->WorldTransform_.translation() );
//
SkeletalAABB.expandBy( NewAABB );
}
}
}
// HACK: Expand AABB slightly to cover skin. Should calculate bone sizes and pack them really.
MaVec3d Centre = SkeletalAABB.centre();
MaVec3d Dimensions = SkeletalAABB.dimensions() * 0.75f; // 1.5 x size.
SkeletalAABB.min( Centre - Dimensions );
SkeletalAABB.max( Centre + Dimensions );
//
FullAABB.expandBy( SkeletalAABB );
}
}
AABB_ = FullAABB;
// Setup skinning buffers.
for( BcU32 PrimitiveIdx = 0; PrimitiveIdx < NoofPrimitives; ++PrimitiveIdx )
{
ScnModelMeshRuntime* pNodeMeshRuntime = &Model_->MeshRuntimes_[ PrimitiveIdx ];
ScnModelMeshData* pNodeMeshData = &Model_->pMeshData_[ pNodeMeshRuntime->MeshDataIndex_ ];
TPerComponentMeshData& PerComponentMeshData = PerComponentMeshDataList_[ PrimitiveIdx ];
UploadFence_.increment();
if( pNodeMeshData->IsSkinned_ )
{
RsCore::pImpl()->updateBuffer(
PerComponentMeshData.UniformBuffer_,
0, sizeof( ScnShaderBoneUniformBlockData ),
RsResourceUpdateFlags::ASYNC,
[ this, pNodeMeshData ]( RsBuffer* Buffer, const RsBufferLock& Lock )
{
ScnShaderBoneUniformBlockData* BoneUniformBlock = reinterpret_cast< ScnShaderBoneUniformBlockData* >( Lock.Buffer_ );
for( BcU32 Idx = 0; Idx < SCN_MODEL_BONE_PALETTE_SIZE; ++Idx )
{
BcU32 NodeIndex = pNodeMeshData->BonePalette_[ Idx ];
if( NodeIndex != BcErrorCode )
{
BoneUniformBlock->BoneTransform_[ Idx ] =
pNodeMeshData->BoneInverseBindpose_[ Idx ] *
pNodeTransformData_[ NodeIndex ].WorldTransform_;
}
}
UploadFence_.decrement();
} );
}
else
{
RsCore::pImpl()->updateBuffer(
PerComponentMeshData.UniformBuffer_,
0, sizeof( ScnShaderObjectUniformBlockData ),
RsResourceUpdateFlags::ASYNC,
[ this, pNodeMeshData ]( RsBuffer* Buffer, const RsBufferLock& Lock )
{
ScnShaderObjectUniformBlockData* ObjectUniformBlock = reinterpret_cast< ScnShaderObjectUniformBlockData* >( Lock.Buffer_ );
ScnModelNodeTransformData* pNodeTransformData = &pNodeTransformData_[ pNodeMeshData->NodeIndex_ ];
// World matrix.
ObjectUniformBlock->WorldTransform_ = pNodeTransformData->WorldTransform_;
// Normal matrix.
ObjectUniformBlock->NormalTransform_ = pNodeTransformData->WorldTransform_;
ObjectUniformBlock->NormalTransform_.row3( MaVec4d( 0.0f, 0.0f, 0.0f, 1.0f ) );
ObjectUniformBlock->NormalTransform_.inverse();
ObjectUniformBlock->NormalTransform_.transpose();
ObjectUniformBlock->NormalTransform_.row3( MaVec4d( 0.0f, 0.0f, 0.0f, 1.0f ) );
UploadFence_.decrement();
} );
}
}
UpdateFence_.decrement();
}
//////////////////////////////////////////////////////////////////////////
// drawAABB
void ScnDebugRenderComponent::drawAABB( const MaAABB& AABB, const RsColour& Colour, BcU32 Layer )
{
drawLine( AABB.corner( 0 ), AABB.corner( 1 ), Colour, Layer );
drawLine( AABB.corner( 1 ), AABB.corner( 3 ), Colour, Layer );
drawLine( AABB.corner( 2 ), AABB.corner( 0 ), Colour, Layer );
drawLine( AABB.corner( 3 ), AABB.corner( 2 ), Colour, Layer );
drawLine( AABB.corner( 4 ), AABB.corner( 5 ), Colour, Layer );
drawLine( AABB.corner( 5 ), AABB.corner( 7 ), Colour, Layer );
drawLine( AABB.corner( 6 ), AABB.corner( 4 ), Colour, Layer );
drawLine( AABB.corner( 7 ), AABB.corner( 6 ), Colour, Layer );
drawLine( AABB.corner( 0 ), AABB.corner( 4 ), Colour, Layer );
drawLine( AABB.corner( 1 ), AABB.corner( 5 ), Colour, Layer );
drawLine( AABB.corner( 2 ), AABB.corner( 6 ), Colour, Layer );
drawLine( AABB.corner( 3 ), AABB.corner( 7 ), Colour, Layer );
}
