how many use LWF

[nvanherpt]

I use it. For me LWF gets more light inside buildings, so there are less lights required than lighting the old way. Less lights = quicker render times.

[jujubee]

Wow a lot of disinformation. I'll correct some misconceptions.

The original post that started it all on this forum was by Throb. Other people in the industry that were familiar with his technique contributed to that thread and it grew extremely large and ended up getting very confusing. I was the first person to 'simplify' the whole process in that thread then it spawned other people 'trying to teach others' without properly understanding the underlying mechanics themselves.

The whole point to LWF is that most other applications (and real physical cameras) work in a certain Gamma space. 3dsmax by default does not by default. So when you import textures and colors they come out wrongly colored/lit due to these discrepancies between programs, cameras, monitors (which most people who don't understand how the process works miss), and even operating systems.

LWF attempts to make certain that all colors, textures, and the lighting systems you are working with work within one single space versus many - that's where the term 'linear' comes from.

The 'side-effects' of LWF is that you generally end up getting faster rendering times, more accurate color matching, and more accurate shadows and falloff.

[m_hinks]

Nice one jujubee. That's a good clean explaination.

I've been using lwf for 2 years, right from the first time I came to vray from brazil.

I can't add anything more to jujubee's info, but it's safe to say I'm a big fan! And the last two companies I've worked for have adopted lwf company wide.

[etown]

I use it daily. Try to match a Maxwell rendering without it, it's tough.

[JeffG2]

I use it on almost every project.

But I still have to tweak it with a black level correction because no matter what I do, a straight LWF image looks slightly washed out. I find that pushing the black level to +0.02 give the image back some bite that it was missing.

[simmsimaging]

I'm with jeffg in that I find the raw renders flat too. I have a few regular ways of changing it but my current favourite is to use the exposure adjustment in pshop and set the gamma slider to .85. Usually gives a good base.

B

[alias_marks]

I've been using it for a while now too. Save out to exr and adjust gamma, exposure in photoshop. Love the flexibility and render times.

[jujubee]

The raw renders always lack a little bit of contrast. Easily fixed post-process IMO.

[peterguthrie]

I use it on every job, and normally tweak the curves on the vray FB for preview purposes.

[percydaman]

whats great about LWF is that it allows the max amount of flexibility in post. And I'm not just talking about floating point exr. Even before LWF I always tried to get my renders to look a little washed out, cause I can always put contrast where I want it in post. Too many curves moves on an interior trying to get it bright enough, and I would get banding. So I would switch to 16bit in photoshop. But my psd files frequently top over a gigabyte in size, and thats just in 8bit.

[Preisler]

Always LWF.

I am mostly doing stills and all ajustments are made in a nice little application called Photoshop!

Preisler

[rivoli]

started working linearly quite a bit ago and never looked back. as already mentioned, it gives you much more control on basically everything, from lighting to minor post tweaks to more intricate compositing.