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Shadow map resolution for terrain

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#1 polyfrag   Members   

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Posted 22 December 2012 - 10:25 PM

I was using a 4096x4096 size shadow map for my RTS map until I realized that it was lagging because of it.

 

But the new 512x512 is far too small. 

 

shadowmap_zps067c4e41.jpg

 

What can I do to add detail to the shadows without lagging it?

 

https://dl.dropbox.com/u/109630018/CorpStates.zip



#2 deftware   Prime Members   

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Posted 22 December 2012 - 11:47 PM

create individual shadows for each structure/object that's on the map, each one of those could be (judging by your screenshot) maybe 64x64, and when drawn would look beautiful.



#3 max343   Members   

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Posted 24 December 2012 - 06:56 AM

You can implement CSMs. With these you can achieve nice precision for some areas, while sacrificing precision on other areas.




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