[Fluxus] render-to-texture progress

[Dave Griffiths]

Hi Gabor,

Any ideas how I get a copy of this branch? I did it with artem's but
I've forgotten the git magic words now...

On Tue, 2009-01-27 at 15:34 +0100, gabor papp wrote:
> i'm trying to add render-to-texture capabilities of fluxus. i created a
> new branch called fbo-pixels. it's promising, but there are still quite
> a lot of problems with it. example code:
> 
> (clear)
> 
> (define p (build-pixels 256 256))
> 
> (define (animate)
>     (with-state
>         (bind p)
>         (hint-wire)
>         (rotate (vector (* 90 (time)) 0 0))
>         (draw-cube)))
> 
> (every-frame (animate))
> 
> this renders a rotating wireframe cube in the pixels, that you can use
> later as a texture. the main problem is that there's something like
> lighting or fog on the texture, and i was not able to figure it out yet
> where it is coming from. because of this bug, you have to zoom in to see
> the image rendered by the example code, otherwise only a white rectangle
> is shown. any ideas or help would be appreciated.
> 
> the render target is set on state level and checked in the prerender
> method of each primitive.
> 
> changes to the camera affects the picture rendered to the texture,
> probably we should reinitialise the camera after each bind state.
> 
> best,
> gabor
>