Exposure discrepency in VRay Camera

[inf3rno]

Then what enexis said about correcting your materials is the next step. Once you set the max gamma to 2.2 did your material editor slots become washed out too? Adjust these back until they look correct (add color correction to maps set to 2.2 or adjust the color swatches).

Like i said, all done like vlado scene (material are color corrected 2.2 gamma and materials more dark before standard use).
Sky seems more realistic on the first image than second one. The scene is in morrocco at 3:30 PM August 21 2006.

[dlparisi]

Back on topic....

I think what we need to develop is a custom sample object for use in the material editor. The object itself is unimportant but the lighting is. Since the material editor doesn't want to recognize the physical camera I'm forced to use a regular camera. I've got a VRaySun set up with a .01 multipler and and vray dome light with a vraysky set as the map (I'm not sure this works completely-it renders ok but it might be quicker and better just to use a hdr). Since it's just for previews in the mat editor i've set the samples to 1 on both lights. It's slower than the normal sample sphere/cube/cylinder but is reasonable and correctly approx. the materials under sunlight conditions. This is my first "sample Object" and done pretty quick so I'm still trying to tweak it.

Same material-different sample object.


What do you think? PM if you'd like to try it yourself.

[studioDIM]

might you upload the scene, even if with no textures?
It may be easier to look at it for something off balance.
The first image seems to have nearly no secondaries.
What GI methods are you using for first and secondary bounces?
Try lc for secondaries, and qmc for primary, and see if it gets any better.

Exe, i meant both the diffuse and the reflection colours ar at 120 grey (or hsv 120 Value).

Lele

[inf3rno]

might you upload the scene, even if with no textures?
It may be easier to look at it for something off balance.


Lele

Diificult to up the scene, more than 2 200 000 faces. I will try to make in this scene a new scene with fewer objects, try it to see if seems like my original scene and up here.

For GI, i use Irr Map + light cache.

[studioDIM]

i did prepare myself the same exact setup, with a slightly different object, to go with the mateditor.
Works fine for some things, and can be customised to heart's content.
Also, it's so damn quick in the mateditor preview it hurts

Lele

[ene.xis]

Exe, i meant both the diffuse and the reflection colours ar at 120 grey (or hsv 120 Value).

i thought so...i see were ur going now...thanx!

[dlparisi]

i did prepare myself the same exact setup, with a slightly different object, to go with the mateditor.
Works fine for some things, and can be customised to heart's content.
Also, it's so damn quick in the mateditor preview it hurts

Lele

Did you use VraySky in the sample or use an HDR? I was thinking of rendering out a 360 deg map of the sky and just using that.

How quick is damn quick? Is it faster than the normal previews?

[studioDIM]

i used a vraysky map, a vraysun, and the vraysky i mapped to a dome light, so to have GI without GI calculation (no way of controlling the mateditor render parameters, afaik).
This, to avoid any improper referencing to bitmap textures: if latest vray is in, it'll work.
Mine is set up to hold 14 submats, i think, which should be aplenty most times.

the file's here:
http://www.oxyshare.com/get/12469066...st_02.rar.html

no comments on the model, please

Lele

[jujubee]

Also, it's so damn quick in the mateditor preview it hurts Smile

You've got a custom object in the mat editor thats "quicker" than the default max ones?

[Sawyer]

inf3rno -
I work on this based on your image let me know if this is what you are facing

http://www.chaosgroup.com/forum/phpB...=139875#139875

[studioDIM]

Also, it's so damn quick in the mateditor preview it hurts Smile

You've got a custom object in the mat editor thats "quicker" than the default max ones?

Considering there's a skylight and IBL (16 subdivs, 64px texture downsapmling for the sky on the dome light)going on? you betcha!
It takes around a second/ one and a half to update, so far with ANY material i tried, on my shitty athlon XP 2ghz.
There's prolly half the screen space of normal sample slots on it atm, and the model is REALLY bad, but aye.
I'd say it's more than impressive.

Lele

[studioDIM]

http://www.oxyshare.com/get/90384098...st_03.rar.html

New testscene for the mateditor.
It's apparent how, for instance, SSS works as expected when changing parameters.
Load in mateditor with camera and lights (options of the mateditor at the bottom) then choose custom scene from the sample type on the top right of the mateditor.
In the fastest computers out there, the mateditor sample slot can be rotated at will in near realtime (around 1 fps here )

Lele

[inf3rno]

inf3rno -
I work on this based on your image let me know if this is what you are facing

http://www.chaosgroup.com/forum/phpB...=139875#139875

Thanks for link, perhaps a good way for me. Do you use this plugin with max8 ? on the web site i only see max 7. Thx


Thanks too StudioDIM

[Sawyer]

Sorry I was away from the computer last week. yes the color correct plugin works fine with max 8

[inf3rno]

Thanks for answer