Hello,
Im having a simple question, of wich i can hardly find any info.
How to use multiple shader passes on some rendered data?
Usually i can just bind one shader (including one frag and vert shader), and do the drawing.
But how does this work when i want to use 2 vertex shaders and one fragment shader for in example gaussian blur?
And what should i do if i want do do another pass to post process this blurred data?
So i want to do this:
- one pass horizontal blur
- one pass vertical blur
- one pas post processing
Is it possible do do this at once, or do i need to buffer the scene to a fbo each pass?
Thanks in advance 