Further Transparency

Particle systems using the new translucency-faking also work now.

So what do they do well?

• Completely order independent
• Lit (with fully deferred light sources)
• Shadowed
• One rendering method for all translucent objects

And what do they do badly?

• Look like arse when the camera is inside the smoke volume
• Perform like arse when the camera is near the smoke volume (fill rate bound? Yick!)
• Hideous sharp edges to blurred regions
• Blur is more obvious than transparent areas with low alpha
• Alpha quantisation very visible at low alpha

Ugh. I'm not sure I like the balance of pro/con there.

A block of smoke using the technique. No approximated scattering yet, so light sources look a bit strange at present.