Vray Gbuffer and afterburn gbuffer = exeption

[Morbid Angel]

Today I have been experementing with ways of adopting motion blur for afterburn, and came around gbuffer pases in it. However vray has failed to output any gbuffer pases producing vray exeption and then crash.

[RErender]

Do you have the same gbuffers on in vray that are on in the rpf?

[Morbid Angel]

yes, we have adopted a full way of rendering out the gbuffers from vray, and it works well for geometry. However ab is an atmospheric and behaves differently, when output image channels is checked in ab settings, it will out put all gbuffers at once. However while this works with scanline/brazil, vray seems to give exepetion and or crash.

[Da_elf]

gee. usually i find questions like that useless for the vray regulars however sometimes they do make sence to ask since sometimes even the pro's could have a lapse of memory and forget a switch ot toggle

[RErender]

Yeah, that, and we know Morbid likes to throw one back now and again.

I should have read his first post beter though, somewhat evident that that wasn't it.

[Morbid Angel]

lol... yeah we have actually worked this entire project with rpf's, around 15000 frames was rendered in rpf. The reason for the gbuffers in this case was the lava which we had to produce, whilst working with vray's motion blur it was really expensive for render, appx 3-5 hours per frame. But rpf motion blur worked well and in most cases gave us much needed post control over the moving fluids.
So I desided to look into afterburn since its the other thing we could not get to motion blur at all, exept camera multipass, but we all know where that leads. So, eventually I got ab to output velocity but using scanline and for some reason the rpf blur had to be set to 1000 to see the blur effect, not a big deal since we render ab with scanline anyways because of much incompatabilities with vray's raytraced shadows. I just thought I'd bring it up for chaos guys to chew on.