Sign in to follow this  
grunt123

dealing with fillrate problem in particle system (Nvidia demo)

Recommended Posts

Hi, I'm trying to implment 'layered composition' approach that was used by NVIDIA demo for fog effects(fire vulcan or something like that :)) This approach works ... in terms of improving performace. But i've got a problem with the visual of the final image. Does anyone know how alpha blending should be done in this approach? I just use normal alphablending operations (srcalpha,invsrcalpha) when redering onto 1/4 sized buffer and use alphaadd(srcalpha,1) when bliting 1/4 buffer onto backbuffer. The final image looks ... well, kinda blurred. This is obvious when i look at the edges of objects that are inside fog.

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