Exposure and gamma and AA tip

[tajino]

...handle and retain 32bpc data.

32bpc data as all textures into LW?? you must be joking, how many images could you load in per scene on a 2G limit? let alone have enough ram to do large render, of course unless you're on 64bit, that i can say nothing.

[Haven1000]

...handle and retain 32bpc data.

32bpc data as all textures into LW?? you must be joking, how many images could you load in per scene on a 2G limit? let alone have enough ram to do large render, of course unless you're on 64bit, that i can say nothing.

Obviously most of my image textures AFTER PS tweaking are 24bit.

[silverlw]

FUI. Gregorz have written some new experimental colour/tonemapping algorithm now that seem to be very promising. I havent tried it yet but it's supposed to further improve Kray's Dynamic and colourhandling. I will tell more about this when i have more info.

[tajino]

when did he added that? after OB 2.85? has he recovered? if so, it is so good to hear about that. Thanks.

[florian]

FUI. Gregorz have written some new experimental colour/tonemapping algorithm now that seem to be very promising. I havent tried it yet but it's supposed to further improve Kray's Dynamic and colourhandling. I will tell more about this when i have more info.

Thats sounds great. Cant wait for the next OB. Any word on when it will be out?

Florian

[tiktane358]

yes, it would be great to have a new toy to play with !!!

[direwolf]

Since more user, just like me, are struggeling with gammacorrection here are two solutions:

1) Manually correct you RGB with the next formula:
Corrected R = 255 * (uncorrected R / 255) ^ 2.2
Corrected G = 255 * (uncorrected G / 255) ^ 2.2
Corrected B = 255 * (uncorrected B / 255) ^ 2.2
* 2.2 is used as gamma here

2) I used a nodes for the three individual colors RGB first. But this made life even easier. Add the gammacorrecternode to your surface. Change to value to 1/2.2 (=0.4546), add a colornode and attach.
The best is by selecting all materials and disable the nodes, you've got gamma 1 back. So now you can see the actual color as you adjust it, and use these for lw-native renders.
http://www.auroragrafx.com/LW_Plugins/gammacnode.zip

Since OB3 uses nodes this works like a charm.
Sure, disabling all nodes on more complex nodebased materials will show up different. But the idea of quickswitching is ideal for me.

[direwolf]

Appears that the nodeplugin works but not waterproof. Some surfaces end up rendered black in Kray.
No problem since it's easily replaced by my "old" way.

I attached a screenshot of the nodes used. All default lightwavenodes, so no compabilityproblems.

Nodes can be copy-pasted or even exported for speeding up the proces.

[direwolf]

Added an scenes with basic kray setup.
Render at gamma 1 without nodes active, and render at gamma 2.2 with the nodes active.

Works like a charm.

[florian]

FUI. Gregorz have written some new experimental colour/tonemapping algorithm now that seem to be very promising. I havent tried it yet but it's supposed to further improve Kray's Dynamic and colourhandling. I will tell more about this when i have more info.

Is that feature in OB3 and if yes, how do I enable it?

Florian

[jure]

Appears that the nodeplugin works but not waterproof. Some surfaces end up rendered black in Kray.
No problem since it's easily replaced by my "old" way.

Hey thanks for this! Could you also post a surface that is causing black renders with gamma correction node so we can check it?

[Haven1000]

http://www.auroragrafx.com/LW_Plugins/gammacnode.zip

Is there a Mac version?

[direwolf]

No, mac-version. The plugin is created by Aurora. Read more on this topic here. You can still use the methode as in the screenshot, since those are all lw-native nodes. After setting it up once just select all the nodes and copy-paste them.

I'm working my own gamma-correctplugin, even easier to setup and more powerfull. Combining the colornode and the gammacorrect into one. Figuring out right now if i can get the default color out of the selected surfacecolor. This helps you correcting the gamma afterwards.
Although duplicating the color goes pretty fast with Picky too.

<<<>>>

Jure, i will recreate my error for you. It has happened more then once today so i should be able to redo that.