How to use “Opengl Shader” in cocos2d-x3.0

http://discuss.cocos2d-x.org/t/how-to-use-opengl-shader-in-cocos2d-x3-0/12430

http://discuss.cocos2d-x.org/t/how-to-use-opengl-shader-in-cocos2d-x3-0/12430

yuye

Mar 27

6 We can use the shader like this way

First step:
Add 2 shader files to projects Resource

Second step

bool HelloWorld::init(){    if ( !Layer::init() )    {        return false;    }    ize visibleSize = Director::getInstance()->getVisibleSize();    auto sprite = Sprite::create("HelloWorld.png");    sprite->setAnchorPoint(Point(0.5, 0.5));    sprite->setPosition(Point(visibleSize.width / 3, visibleSize.height / 3));    this->addChild(sprite);    graySprite(sprite);    return true;}void HelloWorld::graySprite(Sprite * sprite){    if(sprite)    {        GLProgram * p = new GLProgram();        p->initWithFilenames("gray.vsh", "gray.fsh");        p->bindAttribLocation(GLProgram::ATTRIBUTE_NAME_POSITION, GLProgram::VERTEX_ATTRIB_POSITION);        p->bindAttribLocation(GLProgram::ATTRIBUTE_NAME_COLOR, GLProgram::VERTEX_ATTRIB_COLOR);        p->bindAttribLocation(GLProgram::ATTRIBUTE_NAME_TEX_COORD, GLProgram::VERTEX_ATTRIB_TEX_COORDS);        p->link();        p->updateUniforms();        sprite->setShaderProgram(p);    }}

gray.vsh.zip (0.3 KB) 
gray.fsh.zip (330 Bytes)