Results 1 to 3 of 3

Thread: texturing speed

  1. #1
    Junior Member Newbie
    Join Date
    Jun 2001
    Posts
    10

    texturing speed

    how much of a difference should i be seeing in terms of performance if i texture a quad using a 256x256 image vs a 512x512 image? i.e. what would be a fast way of texturing a square the size of the screen (in full screen mode) using an image of that same size? should the texture be cut up into tiles and then mapped? i hope i'm making sense...

    hpsolo

  2. #2
    Member Newbie
    Join Date
    May 2001
    Location
    Hungary
    Posts
    30

    Re: texturing speed

    If you want to cover the full screen with a textured quad, you should use one quad, with one texture. It's faster than using multiple objects, especially because you want to use a texture image with given size. Even when your quad is tiled all data must be transferred to the video memory. So better using it in one piece.

  3. #3
    Senior Member Regular Contributor
    Join Date
    Nov 2000
    Location
    Dunblane, Scotland
    Posts
    333

    Re: texturing speed

    Not all cards support large textures, the early voodoo cards can only have up to 256*256- thats why some programs split up large textures.
    Reality is for idiots only the best over come it!

Similar Threads

  1. Multi-Texturing and .... normal texturing?
    By Andy Gilbert in forum OpenGL: Basic Coding
    Replies: 4
    Last Post: 04-06-2010, 05:30 PM
  2. Texturing and Texturing (newbie)
    By Sudeepa in forum OpenGL: Basic Coding
    Replies: 5
    Last Post: 12-17-2008, 05:47 AM
  3. Speed
    By cont103 in forum OpenGL: Basic Coding
    Replies: 4
    Last Post: 07-11-2002, 06:36 AM
  4. Speed of Texturing vs Rendering
    By Furrage in forum OpenGL: Basic Coding
    Replies: 14
    Last Post: 03-14-2002, 06:07 AM
  5. speed
    By MCote79 in forum OpenGL: Basic Coding
    Replies: 3
    Last Post: 05-08-2001, 01:20 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Proudly hosted by Digital Ocean