I'm looking to implement a bendy warpy like effect over my 2d top down shooter. It's meant to represent shockwaves from explosions and such. It's similar in a fashion to the bendy warpy effect you get when you charge up a shot in Metroid Prime 3, if you know that.
I guess it'll look similar to the shots in this post here:http://lwjgl.org/forum/index.php/topic,1160.0.html
Now, I'm wondering about the best way to go about this.
At a high level, my plan is this:
// create gl frame buffer object same size as the screen (640x480) and attach a texture to it
// render the scene as normal, but to the framebuffer object/texture (render to texture)
// enable a fragment shader which will do the warp effect
// disable the framebuffer object, render the whole screen as one big quad, with the texture generated above
Is that the right way to go about this?