Wish List Feature Dev4

From Virtools Wiki

Anyone knows how we can create a White Shadow from an object 100% transparent? If I use the Shadow Stencil BB, you can see white in the transparent object (bad "stencil buffer clearing"?). And if I use the shadow caster BB, the transparent object is OK, but as soon as I try to make the "shadow material" white, it fades-out... (and I don't want to use the planar or the simple shadow bb in my case...)

That one's a thinker, isn't it?