ctrlzjones

could it be that there is something wrong with the shader for doing vignettes in OpenGL?

This is from the Max5->examples->jitter-examples->render->slab-helpers->transition->tr.vignettes.jxs-help.maxpat (now, this is profound ...)

"setting GLSL param: GL Error: Invalid operation"

Can we solve this ... or is there an alternative for doing an adjustable vignette in OpenGL?

tweaking the parameters all I get is a
"setting GLSL param: GL Error: Invalid operation"
why could this be?

Can we solve this ... or is there an alternative for doing an adjustable vignette in OpenGL?


tr-vignettes-jxs-kaputt

It looks like the helper patch uses vec2 lists instead of float params. Looking at the JXS file, this appears to be incorrect. Here is a corrected helper patch:

It looks like the helper patch uses vec2 lists instead of float params.  Looking at the JXS file, this appears to be incorrect.  Here is a corrected helper patch:


tr.vignettes.jxs - kaputt?