[jitter] Re: jxs shaders in jit.gl.lua?

I see... I didn't realize that.  I thought that it was only one
shader, but I didn't realize that it was a hardware thing.  I'll look
into the multiple binds.  Thanks for that.

Keith

On Feb 3, 2008 9:16 PM, Wesley Smith <wesley.hoke at gmail.com> wrote:
> Multiple bindings of shaders or not available on any hardware.  There
> can only be one shader at a time running on the GPU.  You can however
> have multiple compiled shaders that you bind at different times.
>
> wes
>
>
> On Feb 3, 2008 6:16 PM, Keith Manlove <keithmanlove at gmail.com> wrote:
> > Hey Wesley,
> >
> > I'm not around my computer to try it, but are multiple bindings
> > available?
> >
> > Keith
> >
> > On Feb 3, 2008, at 1:24 PM, "Wesley Smith" <wesley.hoke at gmail.com>
> > wrote:
> >
> >
> > > This is how you use shaders.  You just make a shader object and call
> > > its bind methods.
> > > wes
> > >
> > >
> > > shader = jit.new("jit.gl.shader", this.drawto)
> > > shader.file = "cc.brcosa.jxs" --shader file to load
> > >
> > > function draw()
> > >
> > >
> > > shader:bind()
> > >
> > > gl.Begin("QUADS")
> > > --top left
> > > gl.TexCoord(0., 1.)
> > > gl.Vertex(-0.5, 0.5, 0.)
> > >
> > > --bottom left
> > > gl.TexCoord(0., 0.)
> > > gl.Vertex(-0.5, -0.5, 0.)
> > >
> > > --bottom right
> > > gl.TexCoord(1., 0.)
> > > gl.Vertex(0.5, -0.5, 0.)
> > >
> > > --top right
> > > gl.TexCoord(1., 1.)
> > > gl.Vertex(0.5, 0.5, 0.)
> > > gl.End()
> > >
> > > shader:unbind()
> > >
> > > end
> >
> > > _______________________________________________
> > > jitter mailing list
> > > jitter at cycling74.com
> > > http://www.cycling74.com/mailman/listinfo/jitter
> > _______________________________________________
> > jitter mailing list
> > jitter at cycling74.com
> > http://www.cycling74.com/mailman/listinfo/jitter
> >
> _______________________________________________
> jitter mailing list
> jitter at cycling74.com
> http://www.cycling74.com/mailman/listinfo/jitter
>