Jump to content
  • Advertisement
Sign in to follow this  

Calculating view angle for relief mapping

This topic is 2706 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 am having some problems with calculating my viewing angle for stepping into the height map when doing relief mapping.

The relief mapping is working, at least kind of. Currently it is only displays the correct result in the positive Z axis (up).

float3 viewDir = fragment.fragmentWorldPos.xyz - cameraPosition;
float3 viewDirNormal = normalize(viewDir);

float rayX = dot(worldNormTangent.xyz, -viewDirNormal);
float rayY = dot(worldNormBinormal.xyz, viewDirNormal);
float rayZ = dot(worldNormNormal.xyz, viewDirNormal);

float3 rayDir = float3(rayX,rayY,rayZ);
rayDir *= depthScale / rayDir.z;
float2 textureOffsetDirection = rayDir.xy;

Any help would be greatly appreciated

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.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!