Sign in to follow this  

ddx_coarse in D3D11?

Recommended Posts

Hey Guys, I was reading over the docs in the D3D11 preview. One interesting thing I noticed was the addition of two seperate derivative instructions. There is now ddx/ddy and ddx_coarse/ddy_coarse. Unfortunately they don't specify how they are different. Any ideas out there? I'm figuring the current ddy/ddy are already coarse (computed on 2x2 pixels blocks), so maybe they have figured out how to use a central differencing scheme or something instead? Seems like that would cost a lot in terms of the extra fragments needed to compute such a derivative Any ideas? Eric

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this