C++ SubMesh::getBoundingBox方法代码示例

void FixedRenderer::updateSkinning(Mesh * mesh, Armature * armature)
{
	unsigned int s;
	unsigned int sSize = mesh->getSubMeshsNumber();
	for(s=0; s<sSize; s++)
	{
		SubMesh * subMesh = &mesh->getSubMeshs()[s];

		// data
		Vector3 * vertices = subMesh->getVertices();

		if(! vertices)
			continue;

		SkinData * skinData = subMesh->getSkinData();
		if(armature && skinData)
		{
			unsigned int verticesSize = subMesh->getVerticesSize();
			Vector3 * skinVertices = getVertices(verticesSize);

			computeSkinning(armature, skinData, vertices, NULL, NULL, skinVertices, NULL, NULL);
			subMesh->getBoundingBox()->initFromPoints(skinVertices, verticesSize);
		}
	}

	mesh->updateBoundingBox();
}

//.........这里部分代码省略.........
		if(nodeMesh->mTangents)
		{
			Vector3 * tangents = subMesh->allocTangents(nodeMesh->mNumVertices);
			for(i=0; i<nodeMesh->mNumVertices; i++)
				tangents[i] = matrix.getRotatedVector3(Vector3(nodeMesh->mTangents[i].x, nodeMesh->mTangents[i].y, nodeMesh->mTangents[i].z)).getNormalized();
		}
		
		// colors
		if(nodeMesh->mColors[0])
		{
			Color * colors = subMesh->allocColors(nodeMesh->mNumVertices);
			for(i=0; i<nodeMesh->mNumVertices; i++)
				colors[i] = Color(nodeMesh->mColors[0][i].r, nodeMesh->mColors[0][i].g, nodeMesh->mColors[0][i].b, nodeMesh->mColors[0][i].a);
		}
		
		// uvcoords
		{
			unsigned int t, nb_texLayers = 0;
			for(t=0; t<AI_MAX_NUMBER_OF_TEXTURECOORDS; t++)
			{
				if(nodeMesh->mTextureCoords[t])
					nb_texLayers++;
			}
			
			Vector2 * uvCoords = subMesh->allocTexCoords(nodeMesh->mNumVertices*nb_texLayers);
	
			nb_texLayers = 0;
			for(t=0; t<AI_MAX_NUMBER_OF_TEXTURECOORDS; t++)
			{
				if(nodeMesh->mTextureCoords[t])
				{
					unsigned int offset = nodeMesh->mNumVertices*nb_texLayers;
					subMesh->setMapChannelOffset(t, offset);
					
					for(i=0; i<nodeMesh->mNumVertices; i++){
						uvCoords[offset+i] = Vector2(nodeMesh->mTextureCoords[t][i].x, 1-nodeMesh->mTextureCoords[t][i].y);
					}
					
					nb_texLayers++;
				}
			}
		}
		
		// indices
		{
			unsigned int f;
			
			if(nodeMesh->mNumVertices < 65536)
			{
				unsigned short * indices = (unsigned short *)subMesh->allocIndices(nodeMesh->mNumFaces*3, VAR_USHORT);
				for(f=0; f<nodeMesh->mNumFaces; f++)
				{
					aiFace * face = &nodeMesh->mFaces[f];
					for(i=0; i<3; i++){
						indices[f*3+i] = face->mIndices[i];
					}
				}
			}
			else	
			{
				unsigned int * indices = (unsigned int *)subMesh->allocIndices(nodeMesh->mNumFaces*3, VAR_UINT);
				for(f=0; f<nodeMesh->mNumFaces; f++)
				{
					aiFace * face = &nodeMesh->mFaces[f];
					for(i=0; i<3; i++){
						indices[f*3+i] = face->mIndices[i];
					}
				}
			}
		}
		
		
		// bones
		initBones(scene, nodeMesh, mesh, subMesh);
		
		
		// display
		subMesh->allocDisplays(1);
		MaterialDisplay * display = subMesh->addNewDisplay(PRIMITIVE_TRIANGLES, 0, subMesh->getIndicesSize());
		display->setMaterial(mesh->getMaterial(nodeMesh->mMaterialIndex));
		
		// cull mode
		int twosided = 0;
		aiMaterial * mtl = scene->mMaterials[nodeMesh->mMaterialIndex];
		if(AI_SUCCESS == aiGetMaterialInteger(mtl, AI_MATKEY_TWOSIDED, &twosided))
		{
			if(twosided != 0)
				display->setCullMode(CULL_NONE);
		}
		
		// bounding box
		subMesh->getBoundingBox()->initFromPoints(vertices, subMesh->getVerticesSize());
		
		(*count)++;
	}
	
	
	for(unsigned int n=0; n<nd->mNumChildren; n++)
		createSubMesh(scene, nd->mChildren[n], mesh, subMeshs, count, matrix);
}

void FixedRenderer::drawScene(Scene * scene, OCamera * camera)
{
	struct MEntityLight
	{
		Box3d lightBox;
		OLight * light;
	};

	struct MSubMeshPass
	{
		unsigned int subMeshId;
		unsigned int lightsNumber;
		Object3d * object;
		OLight * lights[4];
	};

	// sub objects
	#define MAX_TRANSP_SUBOBJ 4096
	static int transpList[MAX_TRANSP_SUBOBJ];
	static float transpZList[MAX_TRANSP_SUBOBJ];
	static MSubMeshPass transpSubObjs[MAX_TRANSP_SUBOBJ];

	// lights list
	#define MAX_ENTITY_LIGHTS 256
	static int entityLightsList[MAX_ENTITY_LIGHTS];
	static float entityLightsZList[MAX_ENTITY_LIGHTS];
	static MEntityLight entityLights[MAX_ENTITY_LIGHTS];


	// get render
	RenderingContext * render = NeoEngine::getInstance()->getRenderingContext();
	render->enableLighting();
	render->enableBlending();


	// make frustum
	Frustum * frustum = camera->getFrustum();
	frustum->makeVolume(camera);

	// update visibility
	updateVisibility(scene, camera);

	// fog
	enableFog(camera);

	// camera
	Vector3 cameraPos = camera->getTransformedPosition();


	// transp sub obj number
	unsigned int transpSubObsNumber = 0;

	// lights
	unsigned int l;
	unsigned int lSize = scene->getLightsNumber();

	// entities
	unsigned int i;
	unsigned int eSize = scene->getEntitiesNumber();
	for(i=0; i<eSize; i++)
	{
		// get entity
		OEntity * entity = scene->getEntityByIndex(i);
		Mesh * mesh = entity->getMesh();

		if(! entity->isActive())
			continue;

		if(! entity->isVisible())
		{
			if(mesh)
			{
				Armature * armature = mesh->getArmature();
				ArmatureAnim * armatureAnim = mesh->getArmatureAnim();
				if(armature)
				{
					// animate armature
					if(mesh->getArmature())
					{
						Armature * armature = mesh->getArmature();
						if(mesh->getArmatureAnim())
						{
							animateArmature(
								mesh->getArmature(),
								mesh->getArmatureAnim(),
								entity->getCurrentFrame()
							);
						}
						else
						{
							armature->processBonesLinking();
							armature->updateBonesSkinMatrix();
						}
					}

					// TODO : optimize and add a tag to desactivate it
					updateSkinning(mesh, armature);
					(*entity->getBoundingBox()) = (*mesh->getBoundingBox());
				}
			}
//.........这里部分代码省略.........