Simple capture & keying

vvvv beta general
1

Hi there,

I just started using vvvv and still just see grey blocks and line and I would appreciate some input on which blocks I would need for the following setup:

2 capture devices, one gives an image with green (00ff00) background.
I want to key/mask that color and lay it over the other capture source.
Performance is an issue so I heard that you can do it with shaders to have great speeds.

I mostly dont have a clue how to start out, any input would be great.

2

ai.

basically you will need 2 VideoInput nodes. see its helpfile to understand how to get a texture from the input. then go through the pixelshader tutorial and you should be there.