Environment Fog tests

[HenrikBC]

Hi

I'm new here. Just wanted to share a few tests I made with the new EnvFog SP3 feature. I have a few feature requests as well, but I'll make a seperate thread for those in the appropriate forum.

Note: I did some corrections in AE - so they're not straight from the renderer. Primarily adjustments on levels, curves and a bit of glow on the last one.







I love this feature. If only my computer weren't so slow...

[LarsSonparsson]

Those look fantastic!

I haven't got time to play envfog much, but that looks promising.

Render times?

-LarsSon

[nils_p]

Wow!

rendertimes?

[dellis]

Very cool! I have a couple requests of my own, so will keep my eye out for your thread!

[dellis]

Care to share the technique?

[judderman]

This is great - is this just created through vray 1.5 sp3?

[HenrikBC]

Thank you!

Rendertime for image # 2 was 40 mins on my quad Q6600 (using only 3 cores as I was working on other stuff) and image # 3 was around 20 mins (also using 3 cores) using a bigger step rate - that introduces more noise.

Image # 1 is upscaled from about half res to fit the same AE comps - don't remember the render time for that one.

Technique is fairly simple. I downloaded this example file from the EnvFog examples page and modified it. For image 1 and 3 I used Perlin Marble (also great for Afterburn Combustion). Image 2 uses Blur's "Electric" noise map with an altered curve. All three images use a huge box gizmo with the camera placed inside of it, and only one light source. Image 1 + 2 uses a Spot light with vrayshadows - Image 3 is an Omni light also with Vrayshadows. All images uses the GI setup that came with the example file - although with slightly modified settings.

And like I said - a bit of post production was done on them all. I can up the clean images later tonight. Apart from the Blur Electric map there's nothing but standard max and VraySP3.

[stevesideas]

All good but that second one is fantastic. Nice one

[HenrikBC]

Image 2 and 3 without any post work done on them:

[HenrikBC]

I'm doing some animation tests and ran into an obvious problem when animating the light source. GI flickering enmasse. Perhaps someone would give me a few pointers for getting a stable solution for animation - without just cranking everything beyond up. Perhaps the irradiance prepass/rendering option? Any GI animation experts out there?

vray_volfog_03b_h264.mov

Around 10mins per frame on this - on a dual quadcore nehalem 2.26ghz
I used irradiance map as primary and light cache for secondary. Irridiance was set to single frame on a low setting - which was obviously a mistake...

[rfellers]

Funny. Last night I tried to recreate this scene and I also tried to run an animation. I've got the same problem - lots of flickering. I believe I had set it up as lightcache for both primary and secondary pass. I'm not sure why I had it set like this, but for stills it seemed to run faster. I'll try some other settings and let you know if I stumble on a solution...

[raistlin]

what is you workstation??? You have nehalem inside !!!
Very interesting work that's look like smoke...

[HenrikBC]

rfellers: Sounds great (that you're looking for a solution) - I'm testing with animation pre/render pass now to see how much that will help.

raistlin: In a moment of insanity, I bought one of the new Mac Pro workstations and installed Vista64 on it.

[peterguthrie]

really cool renders Henrik, might try something like this myself!

[MHenry]

Very nice! Thanks for sharing your Technique.