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1. Re: Shader/UDK - Atmospheric Sky Scattering - Code sections not available?

   

   Reply by haiddasalami · May 2012 · Home› Technical Talk

   Hey Ace, if I remember right distance node comes in Unreal Units so you need to scale it.

2. Shader/UDK - Atmospheric Sky Scattering - Code sections not available?

   

   Topic by Ace-Angel · May 2012 · Home› Technical Talk

   Hey to all, I was wondering if anyone knew a good way to substitute certain function or math for application that don't have certain functions available? For example, I'm trying for a Atmospheric Scattering material in UDK, but there are snippets of code which don't work in UDK, like this for example: Currently, UDK…

3. Re: Shader/UDK - Atmospheric Sky Scattering - Code sections not available?

   

   Reply by ambershee · May 2012 · Home› Technical Talk

   In Unreal Tournament games it is. In Gears of War it is 1UU to 1/2 inch.

4. Re: Shader/UDK - Atmospheric Sky Scattering - Code sections not available?

   

   Reply by cptSwing · May 2012 · Home› Technical Talk

   yeah, i've switched to max's generic units as well.. after having used cm's in max and doing the 'math' in my head, which in retrospect is a little convoluted ;)

5. Re: Shader/UDK - Atmospheric Sky Scattering - Code sections not available?

   

   Reply by Brice Vandemoortele · May 2012 · Home› Technical Talk

   or: sqrt(dot(v,v))

6. Re: Shader/UDK - Atmospheric Sky Scattering - Code sections not available?

   

   Reply by haiddasalami · May 2012 · Home› Technical Talk

   Hey Ace sorry cant be of much further help, maybe try making the length formula back up for the vector? so: sqrt(x^2, y^2, z^2)

7. Re: Shader/UDK - Atmospheric Sky Scattering - Code sections not available?

   

   Reply by cptSwing · May 2012 · Home› Technical Talk

   i thought 1 UU = 2cm?

8. Re: Shader/UDK - Atmospheric Sky Scattering - Code sections not available?

   

   Reply by ambershee · May 2012 · Home› Technical Talk

   UDK has one UU = 1cm by default (this is documented). As for other applications and this shader, I couldn't say.

9. Re: Shader/UDK - Atmospheric Sky Scattering - Code sections not available?

   

   Reply by Ace-Angel · May 2012 · Home› Technical Talk

   Hey Haid, That's a start, but any ideas on how I would go about doing that? I'm not sure how or what UDK's values vs. others is, google is coming up empty. I'm guessing it's scaled to Max?

10. Re: Shader/UDK - Atmospheric Sky Scattering - Code sections not available?

    

    Reply by almighty_gir · May 2012 · Home› Technical Talk

    1/2 inch != 1cm 1/2 inch = 1cm * 2.54 * 0.5 = 1.27 1UU in GoW = 1.27cm