Jump to content
  • Advertisement
Sign in to follow this  

Any stable importance sampling for VPLs ?

This topic is 3167 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

I'm experimenting with real-time GI algorithms right now. Ones that I'm trying are based on reflective shadow maps as a source for generating VPL. The main issue right now is to obtaine a coherent solution for VPL's position\flux. I would really appriciate some good advice on this, maybe I've just missed a paper that has a good solution. I have an idea but not sure how efficient that would be and how it can be mapped to GPU. During pre-process, possible positions for VPLs are scatered over the scene. Later, in real-time, each position is rendered from light point of view using points, so only one that can emmit light with current light orientation will be left in buffer. So basically it's a regular RSM but with a bit different way of rendering it. What I'm not getting is to how efficiently read VPLs from such texture, won't using CPU for this might be too slow? Or I just threat empty fragments as invalid VPLs and don't count them later during shading?

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.

GameDev.net is your game development community. Create an account for your GameDev Portfolio and participate in the largest developer community in the games industry.

Sign me up!