Vray presets...

[Ky Lane]

**WARNING** Dumb Newbie Question **WARNING**

Im having fun playing with Vrays rollouts with GI etc, but Im finding myself getting lost. Sometimes I can pull a good render, someones the GI is overshot and stuff like that...

So, for the sake of sounding like a tool, does anyone have a max rollout preference file theyd like to share with me for say a test render, and a full quality render?

Im pretty much still using the settings from a tutorial I did last night about 4am, and while it looks pretty good, it takes 45min to render a scene, and if you get halfway through and see its overexposed somewhere....my heart breaks again..and again.

If anyone would like to save me some time and heartahe - feel free

Cheers,

Ky

[Ky Lane]

Guess not..

[blade911]

ha ha.. im kinda of an advancin noob too.

 

but hope i can make thins easier for u. ok here we go

 

i usually stick with adaptive qmc with the default settins in the image sampler rollout. u cud turn off the antialiasin filter for quick tests too. ( rembr to switch it on for final rendersn i usually use mitchell netravali)

well u cud stick on with irradiance map as primary n qmc as ur secondary engine. (somehow light cache is always very slow for me so i usually avoid it. but others recommend it)u cud bring down the multipiler to say .8 for test renders.

 

irradiance map u cud either follow default very low or medium/high for tests n finals consc. u cab bring down the hsph subdivs to 10-20 for tests. keep it at 50-60 for finals

 

i usually leave the other settings at default.

hope this helps.. i got them from tuts too..

 

an as i can c from ur images bring down the vray light mutiplier values. make sure u convert all the mats to vray mats. cuts down on a lot of time.

 

again these work for me.with these settins i do get test renders includin complex scenes at say 800x600 reso within 10 mins max.depends on ur system ( i use a plain jane p4 with 1.5gram n tats it) im sure all the pros here have much better ways to go at it.

 

so gurus if ur watchin do put some inputsn correct me if im wrong!! sorry for askin like this!

 

cheers

[Ky Lane]

THanks for the tips...

[erickdt]

I too am relatively newwith VRay. When i first started playing with it though I found the tutorials on the Aversis website(http://www.aversis.be/extra_tutorials/00.htm) to be very helpful.

 

In any case... I would recommend using irradiance map as your first bounce and QMC for your second (in the indirect illumination roll out). For test renders, the "low" preset in the irradiance map roll out seems to yield good results with subdivision settings of 20/20 (lower setting will be faster but will produce splotchy results). One thing that you can do to work out your over exposure problems is to render the scene and then save your irradiance map. This will save you the time of calculating it every time you hit render and will likely cut your rendering time in half. One thing that you should keep in mind while doing this though is that it will only work for the view that you save it for. Irradiance maps are view dependant so if you change it and then try to render with the same irr map you'll get f-ed up results. This is a good method for tweaking your materials.

 

I often turn on the override material option in the global switches roll out and set it to a white material so i can evaluate how the light affects the scene.

 

Also in the QMC sampler roll out adjusting the noise threshold greatly increases rendering speed for test renders (I believe the default is .005). Setting it to values between .01 and .05 works well for me for test renders.

 

Wow! that's a mouthful! but I hope it helps.

[The_architect06]

well i guess 40 min is too much for a simple scene,to lower the render times i suggest to make your

noise threshold :0.03 with 12 samples

if you are using irradiance map change to custom preset & let the

min rate -3 / max rate -3

Hsph 15-20

interp 15-20

 

for the overbright image try changing the color mapping to Exponentioal

& yeah adding more vray lights will increase your render time ...

hope that helped..

[manta]

well for test rendering, I use PPT, set both your primary and secondary GI to light cache and in the light cache section, set it to progessive path tracing, hit render, and within 3 minutes or so, you'll have a very good idea of how the lighting looks...

[tboban]

Jeah you are all so smart but nobody wants to upload their preset, don't get it... Funy thing about Vray is that you cannot explain anithing without writing a page of text, that is why I used Maxwell ... So presets anibody?

[manta]

thats very interesting...and how is that animation coming along, that you started rendering about a year ago...lol

[BrianKitts]

Jeah you are all so smart but nobody wants to upload their preset, don't get it... Funy thing about Vray is that you cannot explain anithing without writing a page of text, that is why I used Maxwell ... So presets anibody?

 

Luckily Vray renders fast enough that you have time to write a page describing its setup. No scene is the same which is why there is no magic preset.

 

Best you could come across is what Vlado published as the universal render settings. Typically it's overkill, but since you're a fan of Maxwell perhaps you can appreciate a single render setting that although takes waaaay to long to render will give you a good result.

 

http://www.chaosgroup.com/forums/vbulletin/showthread.php?t=33385

 

 

Hmmm... just thought of a new slogan for Maxwell, but unfortunately Geico is already using it. Hint it's not the commercials involving the gecko....

[Justin Hunt]

I recently did see something of the sort being used by a arch viz firm spruking that whist it takes waaaaaaaaay longer to render the results speak for them selves. Kind of refreashing in a way, where everyone else is saying they can have the job finished before you even send them the info, they are say "hey we can do it much slower than anyone else".

 

Of cause they also did say they have the largest render farm around, so maybe they can deliver it sooner.

 

jhv

[Nic H]

Jeah you are all so smart but nobody wants to upload their preset, don't get it... Funy thing about Vray is that you cannot explain anithing without writing a page of text, that is why I used Maxwell ... So presets anibody?

 

 

get out

[tboban]