Cornel test_LC+irmap

[Triar_cg]

jast simple test "CornerRoom" - rebuild room geometry in Rhino - surf All&
Vraymat - render time 27m 52s Athlon 3000+ 64 bit 1 Gig ram & post Photoshop - gamma corection+exposure+autocontrast

and Jast Arms shells -HDR lights

[corey]

Cornel test_LC+irmap

Triar,

How did you get our frame stamp to work? And how did you get that build already?

Nice images...we are looking forward to seeing more.

Best regards,

Corey

[Gijs]

Cornel test_LC+irmap

I see some significant banding in the first image (yellow wall). To the developers: this is exacly why we need gamma correct during rendering

[flipside]

Cornel test_LC+irmap

Hi Gijs,

Sure it is not your monitor which is not ableto display these subtle color changes?

Sometimes I have banding too, but on my crt monitor this does not happen. LCD's are still not as good as crt's...

About the gamma correction, and all that linear color space talk, I still don't get it I read the thread on vray forum about 10 times and still don't get it. If you can explain it in a simple way what it is all about, please do. I'm just wondering if this workflow is benificial to all people who work with 3D or not. I'm interested to understand it, but since I never had problems with the way I work now, I wonder if I should go trough the trouble of trying to understand

[Gijs]

Cornel test_LC+irmap

Wouter, to answer your question if you should go through the trouble understanding: YES!

The reason why you have never had any problems, is because you became used to using all sorts of tricks to get light behave realistically. Tricks like adding linear falloff lights, no decay lights, bright multipliers, GI send and receive overrides etc. etc.. Just because you were forcing to make a linear image look good on a non linear monitor.

Look at this image for example: Simple GI enviroment and one small arealight: When I load it into photoshop and assign it a non-linear profile (in this case a native PC D65 G2.5 profile) I get this:


When I assign it a linear profile (which the picture has by nature) I get this:



Now which one has a more natural light behavior? you may decide, I already made my decision

[flipside]

Cornel test_LC+irmap

Ok

Please, if you have the time, can you mail/PM me with the steps I have to consider when I want to work in that linear space thing?

I guess to start I must use the vray frame buffer with a curve applied, otherwise I have to guess how my dark image will look like after the adjustment. (so in vray for rhino, this will not be possible for now).

Do I need to do special settings for my monitor, or in photoshop etc...?

That thread on the vray forum really got me confused, I really wanna know what the workflow would look like. For now I have no clue where to start...

Ok back to the topic, nice images Triar!!

[Thomas An._cg]

Cornel test_LC+irmap

Great lighting !