shihua

Hello everyone,I'd like to to draw something using my own shape,so I created this patch to catch my body shape in white color,how can I substitute this white area for other jitter image？Do you have any suggestion？Thank you！

drawing-image-within-a-human-body-shape

https://cycling74.com/forums/white-color-to-alpha/

Thanks very much!It's helpful for me,but I'd like to achieve more complex effect,just like many stars inside my body,how can I do this?

Not sure what you mean. A picture would help. You could play a movie or create stars in open gl. You then use the alpha channel of your body and blend them together.

Thank you again! Last question...Can you tell me how to convert my body image into alpha channel and blend with other video? Thank you very much!

Way a minute , although this works and it's probably what you wanted shihua ,

this has raised a mystery for me which is why am I getting a tons of error on the glsl side ?

I was thinking it's because I'm trying to extract (swiz a) the alpha of two different video into a single vector. But Even though it works I don't get how to fix it. @Andro any suggestions ?

Way a minute , although this works and it's probably what you wanted shihua ,
this has raised a mystery for me which is why am I getting a tons of error on the glsl side ?

I was thinking it's because I'm trying to extract (swiz a) the alpha of two different video into a single vector. But Even though it works I don't get how to fix it. @Andro any suggestions ? 

Thank you @PHIOL，and I achieved a same effect as your patch using jit.gl.slab.I think your way is more smart,but I don‘t know how to fix it...I will do some research

I've done this many many times and variations before, I don't know why it's bugging now ?

Update: @shihua, I added a [* ] inside the gl.pix have a look , this took care of it.

Don't know why though. I would really like to know.

Also, is that what you were looking for ? 

Update: @shihua, I added a [* ] inside the gl.pix have a look , this took care of it.
Don't know why though. I would really like to know.
Also, is that what you were looking for ? 


@PHIOL,Yes,this is what I want,and there's no error report in max console now,I think gl.videolpane could only receive one set of RGB channels, [*] help you to mix RGB channels of tow movies together,so it works perfect now,I guess:)

I guess it was a brain fart on my part. But still would like to know for sure.

Also, have you tried with this little twist. It replaces jit.gl.slab @file td.resample.jxs

I guess it was a brain fart on my part. But still would like to know for sure.
Also, have you tried with this little twist. It replaces jit.gl.slab @file td.resample.jxs

Drawing image within a human body shape