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Member Since 07 Oct 2007
Offline Last Active May 21 2015 02:16 PM

Posts I've Made

In Topic: GPU Ternary Operator

22 April 2015 - 03:56 PM

That optimization could potentially make things worse. This involves an indirect data look up which can be slower than simply a couple of predicated moves. 

In Topic: What to do when forward vector equals up vector

09 April 2015 - 05:30 PM

This is a good blog which may help you.



In Topic: Graphics programming theory help - trade for web dev help/advice/work?

05 December 2014 - 12:28 PM

I'd be happy to take you up on the offer. I have about 30 years graphic programming experience, 20 years of that professionally.

I am based in Vancouver, Canada which is -8GMT so not sure if that works for you with your location.



In Topic: Old school 3D engines

13 February 2014 - 12:56 PM

Have you read the Michael Abrash series of books. Its more than just graphics programming but still a great read.



In Topic: Filmic Tone Mapping Questions

07 January 2014 - 09:52 AM

This bit looks unneeded and should be removed


float exposure = key * L / avgL;


change it to 


float exposure = key  / avgL;


I don't see why you need the multiply by pixel luminance