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Re: UDK - Material - Oren Nayar Help
Nice that there are DVD's now. :) Less slogging through Nvidia tech docs and MSDN and taking apart other peoples code to find what actually works. Also the packages here don't seem to show anything in my version of UDK, what release are you gents up to? Further: I built up a functional oren-nayar model. And I learned to be… -
Re: UDK - Material - Oren Nayar Help
Yeah I really never did coding either (never liked code much); I'd say the training's good for beginners. It goes from the very beginning and doesn't assume you know too much about coding, and although it goes over the basics very quickly, all of the files are provided with lots of comments. If you are familiar with… -
Re: UDK - Material - Oren Nayar Help
Wow, speedy. Guess I'll dive in when I get the time. I have never done any coding, I mean I did really basic C++, I love fiddling with the UDK node editor, would you say its good for beginners? -
Re: UDK - Material - Oren Nayar Help
Tutorials are for chumps. :-P Seriously though, you may be better off with language reference than a tutorial. Search for HLSL on MSDN and you'll have a full function listing and syntax help etc. Cg is a subset of hlsl. Meaning everything you can do with Cg can be done in hlsl and more. The syntax is Identical. edit: ok… -
Re: UDK - Material - Oren Nayar Help
There's no equivalent max and min nodes that I know of, so you'll need to use an if node. Basically for Max: if A > B use A, and vice versa. -
Re: UDK - Material - Oren Nayar Help
Thanks for the help :) @Computron I got and finished the dvd, and I thought it helped a lot so thanks! @Vailias That quick step-by-step helped a lot actually (clarified things about input); I set up a custom node and got things working, but for this case it turns out I can do things without a custom. I finally go… -
Re: UDK - Material - Oren Nayar Help
Maybe I'm misunderstanding but this is my grasp of it so far. if I plug anything into the 'Diffuse' slot on the master material node, I will get a Lambertian model applied to whatever is going into that node correct? So if I plug the Oren-Nayar output into it, I get Oren-Nayar + Lambert. If I plug the Oren-Nayer into… -
Re: UDK - Material - Oren Nayar Help
I'm guessing I'm just being stupid since most of the tutorials I watched are core HSLS video. HSLS in 3DS Max by Ben Cloward (CG Academy) and ShaderCGFX for Maya (eat3D) go through such basics and almost always end up NOT translating well for UDK. I was going to make a Strauss lighting model alongside Oren Nayar, but the… -
Re: UDK - Material - Oren Nayar Help
Hey Vailias, thanks alot for all the help, much appreciated, I do have a couple of questions if you don't mind answering (or if any other peeps could, that would be great to). -I noticed you didn't Power your Roughness Parameter, I was wondering if this is necessary or not. -I thought that Oren Nayar was limited to values… -
Re: UDK - Material - Oren Nayar Help
-Nope. it's squared in the equation because it's the root mean square, but it's a unit in itself so there isn't any need to calcul(blabla it's just a superfluous multiplication). -Roughness goes from 0 to infinity. But anything over 1 might not make sense. -AVOID INVERSE TRIG. yes, that is how you do it (with all hlsl…
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