Advertisement Jump to content
Sign in to follow this  
SIIYA

Shadow mapping on parallax surfaces

This topic is 2415 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 want to get rid of the floating shadows on parallax surfaces by offsetting position. What is the best way to do it? I tried something like: NewPos = Pos + Normal * Height and it works fine when surface is viewed head-on (shadows are distorted across parallax surface), but when its viewed from side I get floating shadows. How can I get rid of them?

Thanks! Edited by SIIYA

Share this post


Link to post
Share on other sites
Advertisement
You'll actually want to be adding some fraction of the view vector to the object position, consistent with how the ray-marching/approximate ray-marching works on an intuitive level.

Humus' DXT5nm/3Dc demo has a workable example, with code.

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!