Which Linear workflow is which???

[kjverine]

I have been reading the forums about LWF but there always seems to be some other way of doing it. I just read a post from 2006 where a user was confused and Chris Nichols help him out alot. I looked my monitor was set too bright and i changed it to 6500k. For the record I am using a CRT Monitor. One thing that has me puzzled is in the Max Pref where the input and output settings are. In one post I saw some had it at 1.0 for the input and some had 2.2:confused: So just to put this linear issue to bed. What is the correct setting?????? I have attached some images showing how i have my system configured for LWF. To be honest I never used any other color mapping beside Linear. I used vray camera fstop=2 shutter=200 iso= 150, vray sun multiplier=0.03

[gfa2]

Benjamin, the way you've got it set up you are burning the 2.2 gamma correction into the image via the color mapping setting. Most people don't work that way. I assume you are not using the Vray frame buffer or 32-bit floating point file types (exr, hdr). I think that is where the confusion lies here. In the Vray frame buffer you'll find the sRGB button that show what the gamma correction looks like, but it doesn't burn it into the image. Then you have a lot more flexibility in Photoshop when you save to a 32bit file.

[kjverine]

Hey Gary,

 

I am using the vray frame buffer. I have even heard that I need to set my sun to an intensity of 1. Is that correct? I have even watched Lele's tutorial with the gargoyle and the way he had things setup was even more confusing. He talked about using vray color float which I tried as well. Can you plzzzzz guide me in the right direction.

[gfa2]

A lot of people like LeLe's approach and have done really nice work with it (Aaron Coon comes to mind). But his approach is different from "normal" LWF (if there is such a thing). The physical sun was made to use with the exposure tools of the physical camera, so yes you would set the value to 1. If I remember right, Lele cuts the multiplier of the sun based on a formula (it's been a long time since I watched his tut). While that technique will work, I'd say it's a little more of a left field approach.

 

One thing that you will surely read about LWF is that there really isn't one way to do it....whatever works for you. For instance some people don't use 2.2, they use 1.6 or 1.8.

[kjverine]

Where can I find reading material or a step by step tutorial that explains linear workflow using the vray cam, vray sun, vray sky?

[gfa2]

I don't know of one

[kjverine]

:)Thanks for the help Gary;)