Opacity Map Speed

[Donfarese]

Hi,

We are looking at using VrayRT on our next project, we have a lot of vegetation. We used Redshift on the last one and found it extremely fast for vegetation because it has a stencil shader node that uses a black and white texture map to cut out leaves for trees with almost no hit in performance. I was just testing VrayRT and using the map in Opacity and changing the Opacity mode to Clip and Stochastic, both are taking the render of one tree from 29sec to 1min34sec for stochastic and clip. Is there something I'm doing wrong or maybe a better way?

Thank you.

[Donfarese]

Just noticed setting opacity mode on Normal renders is 1min33sec also, is the problem that VrayRT doesn't support different Opacity Modes and is not utilizing the speed of clip and stochastic? I'm using VrayRT 3.50.04

[yavor.rubenov]

Hello,

Unfortunately you are right - VRayRT doesn't support the different opacity modes yet. They are already planned.

Best regards,
Yavor

[vlado]

V-Ray GPU always uses the Stochastic mode. It probably makes sense to add support for the clip mode as well.

Best regards,
Vlado

[Donfarese]

I'm not sure what mode or technique Redshift is using but you might want to take a look at there's, it just seems to add no time to rendering, and no flickering in animation. We use a lot of vegetation in animation so this would be huge for us.

[vlado]

I'm not sure what mode or technique Redshift is using but you might want to take a look at there's, it just seems to add no time to rendering, and no flickering in animation. We use a lot of vegetation in animation so this would be huge for us.

I'm aware of what Redshift is doing. We will not be doing that for V-Ray GPU for the time being.

Best regards,
Vlado

[Donfarese]

Okay, is there any time frames on features or a road map somewhere I can see? Thank Vlado

[vlado]

Okay, is there any time frames on features or a road map somewhere I can see? Thank Vlado

Unfortunately not - we generally avoid giving time frames or roadmaps publicly; we've tried it before, it never works out. Things and circumstances change way too quickly and such things very quickly become obsolete.

Best regards,
Vlado

[Donfarese]

Okay no Problem, Keep up the good work Vlado.