Hi all,
I followed the tutorial here:
But I wanted to modify it so that the background is NOT included in the LUT effect.
So I put it in the CSS.
But the alpha doesn’t seem to work and I have a black background.
I made a codepen here:
Note: if I comment line 169 (“composer.addPass(effectLUT)”), the alpha works and I see my background. But then when I choose a LUT in the menu (for example “identity no filter”) the background goes black.