It seems a good way to go when the process has nothing to do with the render/panels colors and so.
Code:
MATERIAL *mtlEffect = mtl_create ();
mtlEffect.effect = "myeffect.fx";

PANEL *panSource = pan_create ( "", 1 );
...
panSource.bmap = bmap_createblack ( panSource.size_x, panSource.size_y, 32 );
set ( panSource, SHOW );

...

while ( 1 )
{
   bmap_process ( panSource.bmap, NULL, mtlEffect );
   wait(1);
}


Otherway I know two other similar ways to go.

If you want to process just the panels, render them over a render target and show it throught an other panel with a bmap_process.
Code:
MATERIAL *mtlEffect = mtl_create ();
mtlEffect.effect = "myeffect.fx";

PANEL *panSource = pan_create ( "", 99 );
...
panSource.render_target = bmap_createblack ( panSource.size_x, panSource.size_y, 32 );
set ( panSource, SHOW );

PANEL *panDestiny = pan_create ( "", 1 );
panSource.bmap = bmap_createblack ( panSource.size_x, panSource.size_y, 32 );
set ( panDestiny, SHOW );

...

while ( 1 )
{
   bmap_process ( panDestiny.bmap, panSource.render_target, mtlEffect );
   wait(1);
}


If you want process the camera too, you can go like in the example above and include the camera render target in a material skin, or you can enlarge the render chain with a process_target view.

Code:
PANEL *panSource = pan_create ( "", 1 );
...
panSource.render_target = bmap_createblack ( panSource.size_x, panSource.size_y, 32 );
set ( panSource, SHOW );

MATERIAL *mtlEffect = mtl_create ();
mtlEffect.effect = "myeffect.fx";
mtlEffect.skin1 = panSource.render_target;

VIEW *camFinal = view_create ( 1 );
camFinal.material = mtlEffect;
set ( camFinal, SHOW | PROCESS_TARGET | CHILD );

camera.stage = camFinal;


In both cases, you'll need to check the texture sampler sources of the shader.

hope it helps,
salud!

Last edited by txesmi; 12/10/12 08:46. Reason: ups, code error ;)