lstan

Thanks Nikolai i contacted Chaos Group, it seemed Vray RT 3.0 and below dont support PNG alpha

Hi, anyone can help me, I usually render alpha in PNG using Vray Adv and the empty background will be rendered transparent, but when using Vray RT, the empty background is rendered black. I start a new empty scene and render PNG using Vray Adv and Vray RT, the same result the Adv gets alpha but NOT the RT. Why is this happening ? How to get alpha transparency in PNG using Vray RT ? Thanks for help