Armature的全部节点设置shader？不止是当前显示的节点。要怎么实现

Cocos2d-x
#1

Armature设置shader，使用“遍历BoneDic”设置“bone->getDisplayRenderNode();”的方式，只能设置当前用到的骨骼的精灵。由于Armature不止有骨骼动画，还夹杂着帧动画，之后出现的精灵没有被设置shader，这个要怎么解决？？

#2

您好。请问这个问题您解决了吗？我尝试了将draw()重写，然后在里面执行你提到的遍历bone设置shader。但是效率很低。应该会有更优化的方法。不知道您是否实现了？！

#3

通过在网上的查找，这里提供了一个可用的解决方案。

这一个函数，对每一个bone的每一个child设置shader。

void ShaderArmature::initShader(bool shaderState){
		//Traverse every bone to set shader
		for (auto& object : _boneDic)
		{
			if (Bone *bone = dynamic_cast<Bone *>(object.second))
			{
				if (bone == nullptr)
					continue;

				//-----------------!! IMPORTANT !!-----------------
				//Each bone may have more than one child, like several frames, also need to assign shader to them
				//Without this step, only the first frame will have the shader effect.
				const Vector<DecorativeDisplay*> list = bone->getDisplayManager()->getDecorativeDisplayList();
				for (auto& display : list)
				{
					Node* node = display->getDisplay();
					if (node == nullptr)
						continue;

					if (shaderState){
						auto program = new GLProgram();
						program->initWithByteArrays(vertSource, fragSource);


						node->setGLProgram(program);

						program->autorelease();

						CHECK_GL_ERROR_DEBUG();

						program->bindAttribLocation(GLProgram::ATTRIBUTE_NAME_POSITION, GLProgram::VERTEX_ATTRIB_POSITION);
						program->bindAttribLocation(GLProgram::ATTRIBUTE_NAME_COLOR, GLProgram::VERTEX_ATTRIB_COLOR);
						program->bindAttribLocation(GLProgram::ATTRIBUTE_NAME_TEX_COORD, GLProgram::VERTEX_ATTRIB_TEX_COORDS);

						CHECK_GL_ERROR_DEBUG();

						program->link();

						CHECK_GL_ERROR_DEBUG();

						program->updateUniforms();

						CHECK_GL_ERROR_DEBUG();

					}
					else{//addNormal shader
						node->setGLProgram(ShaderCache::getInstance()->getProgram(GLProgram::SHADER_NAME_POSITION_TEXTURE_COLOR_NO_MVP));
					}
				}
			}

		}
	}

在机器上实测可用。