Update [2020/10/23]: Since I wrote this tutorial many things has changed in Cocos2d-x and I haven’t been using it in years as I switched to Unreal Engine 4. According to this GitHub issue opened by my blog readers, in order for this code to work there has to be some modifications to the code which is provided on that issue by @lazerfalcon and @madrazo. I was also having trouble with render to texture on Sprite3D which seems to have been solved in newer versions.
Despite the fact that Cocos2d-x uses the OpenGL ES Shading Language v1.0 for the shaders (in order to learn more about the language, please refer to: OpenGL ES Shading Language v1.0 Spec) the engine does not provide an out-of-the-box API to apply post-processing effects to the whole game scene output at once.
In this tutorial we will learn an easy way to apply multiple post-processing effects to the game scene output all at once.[Read More...]