New feature: alpha for alpha materials

mk.1 · Post by **mk.1** » Thu May 08, 2008 12:23 am

Basically a third float value ("alpha" or "factoralpha") that regulates the overall alpha value of EMT_TRANSPARENT_...

Needs changes for CMaterialRenderer.h
d3d: uses texturefactor (renderstate) and a alphastate ALPHAOP1 = MODULATE with ALPHAARG1 = texture; ALPHAARG2 = texturefactor
I think there's an equivalent for OGL. Should be easy to implement for the software drivers as well.

Advantage: Easy fade in/fade out for single scene nodes without change of the vertex alpha values.

rogerborg · Post by **rogerborg** » Thu May 08, 2008 3:30 pm

I'm liking it. I don't know how practical it will be, but it would certainly be useful.

Virion · Post by **Virion** » Sat May 10, 2008 5:08 am

I'll second that.