Apply Shader Cocos2DX

myshader.cpp

...
// create mesh
Sprite3D* mesh = Sprite3D::create("mymesh.c3b");

// create the shader
GLProgram* shader = GLProgram::createWithFilenames("shaders/lightmap.vert","shaders/lightmap.frag");

// apply shader to mesh
GLProgramState* state = GLProgramState::create(shader);
mesh->setGLProgramState(state);

long offset = 0;
auto attributeCount = mesh->getMesh()->getMeshVertexAttribCount();
for (auto i = 0; i < attributeCount; i++) {
    auto meshattribute = mesh->getMesh()->getMeshVertexAttribute(i);
    state->setVertexAttribPointer(s_attributeNames[meshattribute.vertexAttrib],
                                  meshattribute.size,
                                  meshattribute.type,
                                  GL_FALSE,
                                  mesh->getMesh()->getVertexSizeInBytes(),
                                  (GLvoid*)offset);
    offset += meshattribute.attribSizeBytes;
}

// set shader variables
Texture2D* lightmap = Director::getInstance()->getTextureCache()->addImage("lightmap,png");
state->setUniformTexture("lightmap",lightmap);

addChild(mesh);

// reset the shader if renderer gets dumped by the OS
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID || CC_TARGET_PLATFORM == CC_PLATFORM_WP8 || CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
    _backToForegroundListener = EventListenerCustom::create(EVENT_RENDERER_RECREATED,
                                                            [state](EventCustom*)
                                                            {
                                                                auto glProgram = state->getGLProgram();
                                                                glProgram->reset();
                                                                glProgram->initWithFilenames("shaders/lightmap.vert","shaders/lightmap.frag");
                                                                glProgram->link();
                                                                glProgram->updateUniforms();
                                                            }
                                                            );
    Director::getInstance()->getEventDispatcher()->addEventListenerWithFixedPriority(_backToForegroundListener, -1);
#endif
...