Affect Alpha in VrayDirt

V-Ray V-Ray for 3ds Max General
1

Hi,

I’ve notice that there is a Affect alpha checkbox in the new VrayDirt map. Anyone can explain how this work because I found nothing in the help file about this.

Thanks!

2

Re: Affect Alpha in VrayDirt

Thanks, we are working on adding that to the Help index as well.

In short:
That check-box will allow you do blend the dirt with the diffuse colour (if any different than the default one). For example if you have a red diffuse and the VRayDirt in the diffuse map slot as well, checking the Affect Alpha will add that red diffuse colour to the final rendering of the object, and it would be blended with dirt map colours.

Best regards,
nikki Candelero

3

If I’m understanding correctly, isn’t “Affect Alpha” a bit confusing since it does nothing to the actual final image alpha. Maybe a relabel to something like “Blend with Diffuse” or “Transparent Dirt” or anything else would make it a little more obvious what’s it’s supposed to do.

4

Re: Affect Alpha in VrayDirt

Youve lost me, I thought this was how the vray dirt worked anyway? :?

edit: ooh, is it an opacity setting for the dirt itself?

5

Thanks nikki !