XNA 4.0 - shimmering shadow maps

NewtonsBit · 2012-06-30T20:58:01

I've been experiencing shadow map shimmering in my game right now and I've been looking at ways to solve it. I've been reading through this article and it has some really great things in it. but I can't quite wrap my head around what it's talking about on shimmering shadows. It says to move the light in texel-sized increments. I know what a texel is, but I have no idea how to convert where my shadow map is to a texel increment.Can anyone translate that into non-GPU-wizard talk?

Graphics and GPU Programming Programming

Started by NewtonsBit December 29, 2010 08:58 PM

11 comments, last by Garold 11 years, 9 months ago

mgoss

225

June 24, 2012 12:20 PM

Because I said I prototype in XNA first.

riuthamus

8,390

June 24, 2012 01:04 PM

Well excuse me for skimming... im an artist! no a coder!

poo head! back on topic, lets find an answer so we can actually move on from shadows!

Garold

118

June 30, 2012 08:58 PM

I would very much like to thank you for the explanation and code. I had shadows that would shimmer whenever I rotated or moved. Now they are rock solid. The difference is very satisfying

If you are interested here's a playlist that details my shadows development:

http://www.youtube.com/playlist?list=PL2E3759AF24FE2E9E&feature=plcp

Or have a look at this video:

XNA 4.0 - shimmering shadow maps

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