yair reshef

https://cycling74.com/forums/index.php?t=msg&goto=63168

how do i pass parameters to shaders when using the glbindprogram call?

following https://cycling74.com/forums/index.php?t=msg&goto=63168
how do i pass parameters to shaders when using the glbindprogram call?
for example

reset,
glbindprogram blur,
glparam width 0.3 0.3, (??)
circle 0.5,
glbindprogram

passing-param-to-shader-in-a-cmdlist

I'm not sure that you can actually. You may want to use some form of

On Tue, Jul 1, 2008 at 11:47 PM, yair reshef wrote:

> how do i pass parameters to shaders when using the glbindprogram call?

I'm not sure that you can actually.  You may want to use some form of
scripting instead.
wes

On Tue, Jul 1, 2008 at 11:47 PM, yair reshef  wrote:
> following https://cycling74.com/forums/index.php?t=msg&goto=63168
> how do i pass parameters to shaders when using the glbindprogram call?
> for example
>
> reset,
> glbindprogram blur,
> glparam width 0.3 0.3, (??)
> circle 0.5,
> glbindprogram
>
>
>
>


i found no example of param/gl_commands manipulation via scripting.

i need the sketch command list as i am texturing a sliced open cylinder,

which i can only generate using direct cmd commands.

On Wed, Jul 2, 2008 at 8:52 AM, Wesley Smith wrote:

> I'm not sure that you can actually. You may want to use some form of

> On Tue, Jul 1, 2008 at 11:47 PM, yair reshef wrote:

> > how do i pass parameters to shaders when using the glbindprogram call?

i found no example of param/gl_commands manipulation via scripting.
i need the sketch command list as i am texturing a sliced open cylinder,
which i can only generate using direct cmd commands.

On Wed, Jul 2, 2008 at 8:52 AM, Wesley Smith  wrote:

> I'm not sure that you can actually.  You may want to use some form of
> scripting instead.
> wes
>
> On Tue, Jul 1, 2008 at 11:47 PM, yair reshef  wrote:
> > following https://cycling74.com/forums/index.php?t=msg&goto=63168
> > how do i pass parameters to shaders when using the glbindprogram call?
> > for example
> >
> > reset,
> > glbindprogram blur,
> > glparam width 0.3 0.3, (??)
> > circle 0.5,
> > glbindprogram
> >
> >
> >
> >
>

You could easily recreate this in jit.gl.lua. As for the param thing,

shader = new JitterObject("jit.gl.shader", ctx);

I hope this is somewhere near the mark as it's the first JS I've

written in about 2 years :) Anyway, that's the idea. param is a

method of a shader object in whatever scripting environment , java

You could easily recreate this in jit.gl.lua.  As for the param thing,
in JS it would be

shader = new JitterObject("jit.gl.shader", ctx);
shader.param("paramname", vals);

I hope this is somewhere near the mark as it's the first JS I've
written in about 2 years :)  Anyway, that's the idea.  param is a
method of a shader object in whatever scripting environment , java
etc. you use.

passing param to shader in a cmdlist