C++ LLDrawable::getNumFaces方法代码示例

void LLParticlePartition::addGeometryCount(LLSpatialGroup* group, U32& vertex_count, U32& index_count)
{
	group->mBufferUsage = mBufferUsage;

	mFaceList.clear();

	LLViewerCamera* camera = LLViewerCamera::getInstance();
	for (LLSpatialGroup::element_iter i = group->getData().begin(); i != group->getData().end(); ++i)
	{
		LLDrawable* drawablep = *i;
		
		if (drawablep->isDead())
		{
			continue;
		}

		LLAlphaObject* obj = (LLAlphaObject*) drawablep->getVObj().get();
		obj->mDepth = 0.f;
		
		if (drawablep->isAnimating())
		{
			group->mBufferUsage = GL_STREAM_DRAW_ARB;
		}

		U32 count = 0;
		for (S32 j = 0; j < drawablep->getNumFaces(); ++j)
		{
			drawablep->updateFaceSize(j);

			LLFace* facep = drawablep->getFace(j);
			if ( !facep || !facep->hasGeometry())
			{
				continue;
			}
			
			count++;
			facep->mDistance = (facep->mCenterLocal - camera->getOrigin()) * camera->getAtAxis();
			obj->mDepth += facep->mDistance;
			
			mFaceList.push_back(facep);
			vertex_count += facep->getGeomCount();
			index_count += facep->getIndicesCount();
			llassert(facep->getIndicesCount() < 65536);
		}
		
		obj->mDepth /= count;
	}
}

void LLDrawPoolAvatar::updateRiggedFaceVertexBuffer(LLVOAvatar* avatar, LLFace* face, const LLMeshSkinInfo* skin, LLVolume* volume, const LLVolumeFace& vol_face)
{
	LLVector4a* weight = vol_face.mWeights;
	if (!weight)
	{
		return;
	}

	LLPointer<LLVertexBuffer> buffer = face->getVertexBuffer();
	LLDrawable* drawable = face->getDrawable();

	U32 data_mask = face->getRiggedVertexBufferDataMask();
	
	if (buffer.isNull() || 
		buffer->getTypeMask() != data_mask ||
		buffer->getNumVerts() != vol_face.mNumVertices ||
		buffer->getNumIndices() != vol_face.mNumIndices ||
		(drawable && drawable->isState(LLDrawable::REBUILD_ALL)))
	{
		if (drawable && drawable->isState(LLDrawable::REBUILD_ALL))
		{ //rebuild EVERY face in the drawable, not just this one, to avoid missing drawable wide rebuild issues
			for (S32 i = 0; i < drawable->getNumFaces(); ++i)
			{
				LLFace* facep = drawable->getFace(i);
				U32 face_data_mask = facep->getRiggedVertexBufferDataMask();
				if (face_data_mask)
				{
					LLPointer<LLVertexBuffer> cur_buffer = facep->getVertexBuffer();
					const LLVolumeFace& cur_vol_face = volume->getVolumeFace(i);
					getRiggedGeometry(facep, cur_buffer, face_data_mask, skin, volume, cur_vol_face);
				}
			}
			drawable->clearState(LLDrawable::REBUILD_ALL);

			buffer = face->getVertexBuffer();
		}
		else
		{ //just rebuild this face
			getRiggedGeometry(face, buffer, data_mask, skin, volume, vol_face);
		}
	}

	if (sShaderLevel <= 0 && face->mLastSkinTime < avatar->getLastSkinTime())
	{
		avatar->updateSoftwareSkinnedVertices(skin, weight, vol_face, buffer);
	}
}

U32 LLViewerObjectList::renderObjectsForSelect(LLCamera &camera, BOOL pick_parcel_wall, BOOL keep_pick_list)
{
	gRenderForSelect = TRUE;

	//	LLTimer pick_timer;
	if (!keep_pick_list)
	{
		LLViewerObject *objectp;
		S32 i;
		// Reset all of the GL names to zero.
		for (i = 0; i < mObjects.count(); i++)
		{
			objectp = mObjects[i];
			objectp->mGLName = 0;
		}

		mSelectPickList.clear();

		std::vector<LLDrawable*> pick_drawables;

		for (i = 0; i < LLPipeline::NUM_PARTITIONS-1; i++)
		{
			LLSpatialPartition* part = gPipeline.getSpatialPartition(i);
			if (part)
			{
				part->cull(camera, &pick_drawables, TRUE);
			}
		}

		for (std::vector<LLDrawable*>::iterator iter = pick_drawables.begin();
			iter != pick_drawables.end(); iter++)
		{
			LLDrawable* drawablep = *iter;
			if( !drawablep )
				continue;

			LLViewerObject* last_objectp = NULL;
			for (S32 face_num = 0; face_num < drawablep->getNumFaces(); face_num++)
			{
				LLViewerObject* objectp = drawablep->getFace(face_num)->getViewerObject();

				if (objectp && objectp != last_objectp)
				{
					mSelectPickList.insert(objectp);
					last_objectp = objectp;
				}
			}
		}

		LLHUDText::addPickable(mSelectPickList);

		for (std::vector<LLCharacter*>::iterator iter = LLCharacter::sInstances.begin();
			iter != LLCharacter::sInstances.end(); ++iter)
		{
			objectp = (LLVOAvatar*) *iter;
			if (!objectp->isDead())
			{
				if (objectp->mDrawable.notNull() && objectp->mDrawable->isVisible())
				{
					mSelectPickList.insert(objectp);
				}
			}
		}

		// add all hud objects to pick list
		LLVOAvatar* avatarp = gAgent.getAvatarObject();
		if (avatarp)
		{
			LLViewerJointAttachment* attachmentp;
			for (attachmentp = avatarp->mAttachmentPoints.getFirstData();
				attachmentp;
				attachmentp = avatarp->mAttachmentPoints.getNextData())
			{
				if (attachmentp->getIsHUDAttachment())
				{
					LLViewerObject* objectp = attachmentp->getObject();
					if (objectp)
					{
						mSelectPickList.insert(objectp);		
						for (U32 i = 0; i < objectp->mChildList.size(); i++)
						{
							LLViewerObject* childp = objectp->mChildList[i];
							if (childp)
							{
								mSelectPickList.insert(childp);
							}
						}
					}
				}
			}
		}
		
		S32 num_pickables = (S32)mSelectPickList.size() + LLHUDIcon::getNumInstances();

		if (num_pickables != 0)
		{
			S32 step = (0x000fffff - GL_NAME_INDEX_OFFSET) / num_pickables;

			std::set<LLViewerObject*>::iterator pick_it;
			i = 0;
//.........这里部分代码省略.........

void LLViewerObjectList::generatePickList(LLCamera &camera)
{
		LLViewerObject *objectp;
		S32 i;
		// Reset all of the GL names to zero.
		for (i = 0; i < mObjects.count(); i++)
		{
			objectp = mObjects[i];
			objectp->mGLName = 0;
		}

		mSelectPickList.clear();

		std::vector<LLDrawable*> pick_drawables;

		for (LLWorld::region_list_t::const_iterator iter = LLWorld::getInstance()->getRegionList().begin(); 
			iter != LLWorld::getInstance()->getRegionList().end(); ++iter)
		{
			LLViewerRegion* region = *iter;
			for (U32 i = 0; i < LLViewerRegion::NUM_PARTITIONS; i++)
			{
				LLSpatialPartition* part = region->getSpatialPartition(i);
				if (part)
				{	
					part->cull(camera, &pick_drawables, TRUE);
				}
			}
		}

		for (std::vector<LLDrawable*>::iterator iter = pick_drawables.begin();
			iter != pick_drawables.end(); iter++)
		{
			LLDrawable* drawablep = *iter;
			if( !drawablep )
				continue;

			LLViewerObject* last_objectp = NULL;
			for (S32 face_num = 0; face_num < drawablep->getNumFaces(); face_num++)
			{
				LLViewerObject* objectp = drawablep->getFace(face_num)->getViewerObject();

				if (objectp && objectp != last_objectp)
				{
					mSelectPickList.insert(objectp);
					last_objectp = objectp;
				}
			}
		}

		LLHUDText::addPickable(mSelectPickList);

		for (std::vector<LLCharacter*>::iterator iter = LLCharacter::sInstances.begin();
			iter != LLCharacter::sInstances.end(); ++iter)
		{
			objectp = (LLVOAvatar*) *iter;
			if (!objectp->isDead())
			{
				if (objectp->mDrawable.notNull() && objectp->mDrawable->isVisible())
				{
					mSelectPickList.insert(objectp);
				}
			}
		}

		// add all hud objects to pick list
		LLVOAvatar* avatarp = gAgent.getAvatarObject();
		if (avatarp)
		{
			for (LLVOAvatar::attachment_map_t::iterator iter = avatarp->mAttachmentPoints.begin(); 
				 iter != avatarp->mAttachmentPoints.end(); )
			{
				LLVOAvatar::attachment_map_t::iterator curiter = iter++;
				LLViewerJointAttachment* attachmentp = curiter->second;
				if (attachmentp->getIsHUDAttachment())
				{
					LLViewerObject* objectp = attachmentp->getObject();
					if (objectp)
					{
						mSelectPickList.insert(objectp);		
						LLViewerObject::const_child_list_t& child_list = objectp->getChildren();
						for (LLViewerObject::child_list_t::const_iterator iter = child_list.begin();
							 iter != child_list.end(); iter++)
						{
							LLViewerObject* childp = *iter;
							if (childp)
							{
								mSelectPickList.insert(childp);
							}
						}
					}
				}
			}
		}
		
		S32 num_pickables = (S32)mSelectPickList.size() + LLHUDIcon::getNumInstances();

		if (num_pickables != 0)
		{
			S32 step = (0x000fffff - GL_NAME_INDEX_OFFSET) / num_pickables;

//.........这里部分代码省略.........

//.........这里部分代码省略.........
		if (mesh_enable_deformer)
		{
			LLDeformedVolume* deformed_volume = vobj->getDeformedVolume();
			deformed_volume->deform(volume, avatar, skin, face->getTEOffset());
			face->getGeometryVolume(*deformed_volume, face->getTEOffset(), mat_vert,
									mat_normal, offset, true);
		}
		else
		{
			face->getGeometryVolume(*volume, face->getTEOffset(), mat_vert,
 									mat_normal, offset, true);
		}
	}

	if (sShaderLevel <= 0 && face->mLastSkinTime < avatar->getLastSkinTime())
	{ //perform software vertex skinning for this face
		LLStrider<LLVector3> position;
		LLStrider<LLVector3> normal;

		bool has_normal = buffer->hasDataType(LLVertexBuffer::TYPE_NORMAL);
		buffer->getVertexStrider(position);

		if (has_normal)
		{
			buffer->getNormalStrider(normal);
		}
		LLVector4a* pos = (LLVector4a*) position.get();

		LLVector4a* norm = has_normal ? (LLVector4a*) normal.get() : NULL;

		//build matrix palette
		LLMatrix4a mp[64];
		LLMatrix4* mat = (LLMatrix4*) mp;

		for (U32 j = 0; j < skin->mJointNames.size(); ++j)
		{
			LLJoint* joint = avatar->getJoint(skin->mJointNames[j]);
			if (joint)
			{
				mat[j] = skin->mInvBindMatrix[j];
				mat[j] *= joint->getWorldMatrix();
			}
		}

		LLMatrix4a bind_shape_matrix;
		bind_shape_matrix.loadu(skin->mBindShapeMatrix);

		for (U32 j = 0; j < buffer->getRequestedVerts(); ++j)
		{
			LLMatrix4a final_mat;
			final_mat.clear();

			S32 idx[4];

			LLVector4 wght;

			F32 scale = 0.f;
			for (U32 k = 0; k < 4; k++)
		{
				F32 w = weight[j][k];

				idx[k] = llclamp((S32) floorf(w), 0, 63);
				wght[k] = w - floorf(w);
				scale += wght[k];
			}

			wght *= 1.f/scale;

			for (U32 k = 0; k < 4; k++)
			{
				F32 w = wght[k];

				LLMatrix4a src;
				src.setMul(mp[idx[k]], w);

				final_mat.add(src);
			}

			LLVector4a& v = vol_face.mPositions[j];
			LLVector4a t;
			LLVector4a dst;
			bind_shape_matrix.affineTransform(v, t);
			final_mat.affineTransform(t, dst);
			pos[j] = dst;

			if (norm)
			{
				LLVector4a& n = vol_face.mNormals[j];
				bind_shape_matrix.rotate(n, t);
				final_mat.rotate(t, dst);
				norm[j] = dst;
			}
		}
	}

	if (drawable && face->getTEOffset() == drawable->getNumFaces() - 1)
	{
		drawable->clearState(LLDrawable::REBUILD_ALL);
	}
}