Texture caching

Graphics and GPU Programming Programming

Started by Zeu5 May 22, 2002 07:08 AM

2 comments, last by Zeu5 21 years, 11 months ago

126

Author

May 22, 2002 07:08 AM

I''m writing my own Texture Manager with LRU texture caching... I need to know if a texture is stored in 3d card memory or not. I tried to use the function glAreTextureResident(...) but not all implementation of opengl support this service (in my case it returns always true). There is another way? Thanks.

JuNC

236

May 22, 2002 11:47 AM

I don''t think there is another reliable way, are you absolutely sure that you''ve tested enough cases for textures to not be resident? It seems like a very simple thing for the drivers to implement so I''m surprised if it isn''t (at least on up to date drivers).

Anonymous

May 22, 2002 11:54 AM

Why do you even need a texture manager with texture caching? GL will do it for you. If you don´t have gigs of textures, you certainly do not need such a cache - just minimize texture switches and state changes and GL will be happy.

skynet