Uber Environment vs Hair...
deleted user
Posts: 1,204
Any tips on how to cheat the render time? Without losing too much quality?
Uber lights are nice n all but they are NOT worth 30 hours of rendering because my guy has long hair.
Any hair in fact... No matter what hair. If you have hair in your render... Forget it...
4 hours and 53 minutes to render the top of the head... Ehh.. no thank you...
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Or at least can someone point me in the right direction of some kind of lighting that is good, but don't gobble up your computer for the next day n a half?
If using Uber Environment 2 apply Uber Surface to the Hair and scroll down to the bottom of the Surface Pane with all the Hair Surfaces selected and Turn OFF Occlusion and Switch the Global setting to Override and set the Samples to about 16. It won't make the render lightening fast but faster than it would be if you left it.
The other way is to purchase AOA's Advanced Light bundle and learn about how they work. They have Fagging meaning you can have one set of lights with lower settings to just light the hair, a duplicate set of lights to render everything else on higher settings. It takes some getting the head around it but it does work once you get the hang of them. Reading the manual is a must to do that. The Ambient light similar to UE2 is much faster than UE2.
oh yes I forgot what render settings are you using, what size are you rendering to get a 30 hours render and what are your PC specs. The are many more factors than Hair for long renders.
Turn OFF Occlusion and Switch the Global setting to Override and set the Samples to about 16.
Why am I doing that though?
Can you explain what the functionality of Occlusion & Global settings is?
It's only the hair that takes for ever. Everything else moves at a respectable rate.
PS it isn't well documented on what exactly it does when using the override so my answer is crude but correct.
It's only the hair that takes for ever. Everything else moves at a respectable rate.
I have just rendered a scene with hair using UE2 Global Illumination which is the worst UE2 preset to use for render times and on my rig it took 22 hours with using the override. GI btw is a total waste of time. So now I am just using UE2 with Indirect Lighting with soft shadows and the same scene rendered in about 8 hours with the override on. I dare not test it with Global settings. The render size was only 2000 X 1125 on an i7 3.4 GHZ Quad Core with fairly high render settings
How annoying...
What ever, back to reality plug in. 3Delight is useless to me.
why useless, do you only try realism?
It's useless to me because in reality I've achieved more in 10 minutes then I have 2 days, with 3Delight.
Better Quality, Better render times, Better surfaces...
In 1 minute and 30 seconds with lux via reality I has achieved higher quality render then my 5 hour 3Delight render did.
And yet I find the freedom of 3delight better than being restricted by the laws of physics...each to there own. Don't get me wrong I like Unbiased render engines but they can be so restricting in the creative department. Great for realism given they are physical based.
Szark, the recommendation that I have seen and works very well is to set to override as you recommend, but to set samples to 128. That or use Uberhair.
I'm not sure why you guys are getting such huge render times. A basic scene for me, WITH occlusion on the hair renders in around 10 minutes. Now obviously, there are a lot of different factors such as how busy your scene is, how many lights you have and so forth, but I don't understand how you're getting render times that long.
I've always found 3Delight to be the quicker of the two render engines. Luxrender can take hours to complete a scene while 3DL is usually done within an hour unless I'm working on something particularly complex. If you're having trouble with UberEnvironment, may I suggest trying out the Advanced Ambient Light instead? The render times are a lot quicker.
Luxrender is great for realism, but it can't use any of the more powerful 3Delight shaders as a result. If you only ever do realistic renders, then you may be better off using Lux, but if you ever wanted to make toon renders, for example, then Lux is more of a handicap than a benefit as it simply can't do the computations in the same manner. As it's a physically-based renderer, anything abnormal or other-worldly is either very difficult to emulate or simply impossible.
Don't give up on 3DL just yet. It's an exceptionally powerful engine and can give very clean images quickly. Just like with Luxrender though, getting those results takes practice and a little learning.
Use the 128 override. It speeds up the render time.
For giggles I tried one of SAV's hairs. The override tore right through it. This setting makes using those hairs a workable solution with uber environment.
Oh even better so in this case of 16 being the opposite of say UE2 Occlusion Samples of 16 being faster to render than 128 I really appreciate the info thanks.
I use Advanced Ambient Light before. The options it comes with are very limiting. So I stopped using it.
Realism is one aspect, but It's like.... If I'm going to wait 10 hours for a render to complete it may as well be as realistic as possible and be worth my time.
Totally agree there about realism and time, can't fault it. AOA lights are ok for the general render but I still prefer UE2 with IDL. I will get Reality one day.
The value is actually for shading rate, not number of samples. It says so in the name field - Occlusion Shading Rate. So the higher the number, the faster the performance. Try it with progressive rendering if you have a hair model that uses lots of geometry/surface.
For best performance, you should use UE2's occlusion mode. Indirect light and BounceGI will take a long time to render (though there's a nice render script that will help render times with BounceGI mode).
Doh of cause silly me yes Shading Rate higher = faster .I sit corrected, thank you. I did some tests a while back with IDL and that does work well for me in giving IDL. Great for light coming though a window and bouncing light up on to the ceiling. more noticeable using white walls. Also it does impart some colour from one surface to another.