well no problem with a number of techniques to colour my separate video inputs, thanks to suggestions for world_light from arif and seperate texture streams from ClaudiusMaximus. I have also used[emissionrgb] and [color_curve] with success.

however i have not succeeded in blending the two texture streams, either as a straight overlay, screening, or alpha blending.

any ideas how to get the two texture streams mixed into one window/shape?

many thanks!

https://www.cs.tcd.ie/Nicholas.Ward/qm3/gem/tutorial8.html

Hey arif, thanks! Alas, this is exactly where I hit the wall. Because any colour tinting object added to the left pix_video streams (whether pix_curve, colorRGB, emissionrgb) affects all subsequent shapes pix_video or pix_film. In other words any parallel pix_video or pix_film will be coloured by the first (left) pix_video color effect, regardless of what object is in their string.

So if I understand ClaudiusMaximus correctly, it may work if I mix separate pix_textures, ie do the mixing after two textures are created, not mixing two pix_videos into one pix_texture.

This may maintain the distinct colouring applied to the separate video streams.

Any thoughts on how to mix/overlay/blend two pix_textures?

cheers

ps if this is not clear, I've attached a pd file set up with colorRGB on separate pix_films. you need to load your own video files into a folder with the patch to use it (same pix dimensions, same names as in patch). Only the left color object will have an effect on the final image.

hmmm, my apologies, the patch did not attach...I received an error response. I hope my explanation was clear enough.

tried [pix_mix] and/or [pix_chroma_key]?

hmm, no luck. Basically, is there a way to put a pix_mix object AFTER two pix_texture objects? or some other way to blend two pix texture objects?

I have no luck in getting any output when I pix_mix two pix_texture objects. And I need to mix after, because colour treatment in pd of one pix_video before a pix_texture object affects the whole gemwin, when I want it to be limited to that video stream only.