radiotonga

I'm looking for the most efficient method for keying (chroma, luma, etc.) several planes [gl.sketch] into one texture, in a manner analogous to just inputting several "plane xxx" messages to 1 gl.sketch.

In other words, I'm attempting to amalgamate 9+ different gl.sketches into one videoplane. Currently, I'm using a slab chain (chromakey.jxs) and to_texture messages, but this only works smoothly if using less than 4 slabs. If I add more my patch starts to lag because I'm already using tons of slabs for other stuff.

Please, if anyone could offer me a better solution for this (if there is), maybe not even relying on slabs... Thanks for your time.

In other words, I'm attempting to amalgamate 9+ different gl.sketches into one videoplane. Currently, I'm using a slab chain (chromakey.jxs) and to_texture messages, but this only works smoothly if using less than 4 slabs. If I add more my patch starts to lag because I'm already using tons of slabs for other stuff. 

Please, if anyone could offer me a better solution for this (if there is), maybe not even relying on slabs... Thanks for your time.


color-keying-gl-sketches

I prefer to use @capture with jit.gl.sketch and "drawobject" messages. This allows you to put together little sub-renders that can then be composited together. Here's a very simple example:

I prefer to use @capture with jit.gl.sketch and "drawobject" messages.  This allows you to put together little sub-renders that can then be composited together.  Here's a very simple example:


Thanks for your reply. I already knew about the "drawobject" strategy, so your patch is probably not what I'm looking for. It's my fault anyways, as I brought gl.sketch into discussion when gl.sketch natively implements displaylist-style rendering.

My question was far more simple actually, I just concerns your preferred method for masking a texture's lower values without relying on an extensive slab chain. This is what I intended to portrait in my example patch, which needs 1 pair of chromakey + alphablend shaders per texture.

Perhaps there's no other optimal way out, but if there is, please do enlighten me.

Thanks for your reply. I already knew about the "drawobject" strategy, so your patch is probably not what I'm looking for. It's my fault anyways, as I brought gl.sketch into discussion when gl.sketch natively implements displaylist-style rendering. 

My question was far more simple actually, I just concerns your preferred method for masking a texture's lower values without relying on an extensive slab chain. This is what I intended to portrait in my example patch, which needs 1 pair of chromakey + alphablend shaders per texture. 

Perhaps there's no other optimal way out, but if there is, please do enlighten me.


I think you are looking for @param binary 1 on your co.chromakey.jxs slabs. This puts it into "binary" mode, making it similar to jit.chromakey. If this isn't it, please explain.

I think you are looking for @param binary 1 on your co.chromakey.jxs slabs.  This puts it into "binary" mode, making it similar to jit.chromakey.  If this isn't it, please explain.


Yes, this at least saves me pairing it with an alphablending slab. I reckon this is the most efficient way for masking textures without blending, so thank you very much.

color-keying gl.sketches