[Fluxus] render-to-texture progress

[Dave Griffiths]

Ah never mind - I had it all the time...

On Tue, 2009-01-27 at 16:18 +0000, Dave Griffiths wrote:
> 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
> > 
>