Jump to content
  • Advertisement
Sign in to follow this  
doronf

Shadowmaps and out-door rendering

This topic is 3612 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Hi I would like to add shadow maps to my out-door scene. The problem is that since the visible area is large, the result is very grainy. What can I do to improve the visual quality of the shadows?

Share this post


Link to post
Share on other sites
Advertisement
Cascaded shadow Maps, also known as Parallel-Split Shadow Maps (a google search on Cascaded Shadow Maps yields good results). The basic idea is you render multiple shadow maps for a given light, with successively larger frusta (providing worse resolution the further out you get, but catching more objects); when sampling the shadow maps ("receiving" shadow) you sample the maps based on the view distance, so if you're far away, you sample the shadow map with lower resolution (and vice versa for closer objects, which sample the maps with higher resolution).

Share this post


Link to post
Share on other sites
Sign in to follow this  

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

Participate in the game development conversation and more when you create an account on GameDev.net!

Sign me up!