Tutorial Needed for VRay Dome Light + HDRI

[DaForce]

I just tried it with the Kitchen HDRI and the scene was totally blank.. had to crank the MP up to 50

So the resolution to his problem depends on what HDR he uses.

[jacksc02]

wel here is my image from the file above, all seems to be working.

[Paul Oblomov]

Heh, my post count raised since back then I love VRay 1.5

But - just curious - if it possible, to understand how that VRay IBL works, as in MR it's totaly different. Many shadows even from one single bright dot... etc. Any thoughts ?

[DaForce]

What changes did you make to the file?

As that looks like almost no HDRI at all.
As that HDRI would put ALOT of blue into the image.. yours has none.

[jacksc02]

you talking about my image?

[Paul Oblomov]

Well, I opened that HDRi in PS -=- made me really bad. It's overexposured and... well I'm working on it

[jujubee]

I just tried it with the Kitchen HDRI and the scene was totally blank.. had to crank the MP up to 50

I've been encountering some really high HDR multipliers as well. The other option is to lower the shutter speed on the physical camera drastically and balance the multiplier out.

[jacksc02]

the hdri marcus used was an angular map, so switching to angular fixed the shadow problem.
I also tweaked the settings on the physical camera

[Paul Oblomov]

Corrected HDR image - and got the same results as jacksc02
Of course reset the render settings and HDR map parameters.

[jacksc02]

nice one paul

[jacksc02]

i reset my render setting too

[jujubee]

Gah. Can't download the file as its spitting out errors. Someone mind reposting it or emailing me?

[Paul Oblomov]

Here you are
http://rapidshare.de/files/30554405/...rtest.rar.html
Corrected HDR Image included, with corrected scene for it

[DaForce]

The MAIN cause of the problem was that the gamma was set to 2.2 in the VrayHDR map... thats what was killing the shadows and the light.
Then the max exposure and bad camera settings were the secondary problems.

Once those 3d things are fixed its alot better..

[Paul Oblomov]

The main cause - is overexposed HDRi. It's just wrong to do in that way...