FluidRenderer - background color with alpha


So usually when I want to have transparent background I do:

scene.clearColor = new BABYLON.Color4(0, 0, 0, 0);

But when using FluidRenderer, alpha does not work… Is it possible to render transparent background with FluidRenderer?

I am not sure it can be compatible considering the technique in use. cc @Evgeni_Popov

Sorry, I missed this one!

This PR will fix the problem: