Results 1 to 2 of 2

Thread: Mip mapping question.

  1. #1
    Member Contributor
    Join Date
    Aug 2002
    Posts
    95

    Mip mapping question.

    When you use mippmapping. How much MORE space is used per texture? Like if im using a 512*512*32bit texture I am using just about 1.05mb of space on the card. How much more space is used if I Mip Map that image with opengl??

  2. #2
    Senior Member Regular Contributor
    Join Date
    Mar 2002
    Location
    Melbourne, Australia
    Posts
    224

    Re: Mip mapping question.

    as far as i understand, OpenGL (actually your 3d card) stores all copies of original texture down to 1x1..

    if so then the total memory required is:
    [sqr(512)+sqr(256)+sqr(12+...+sqr(4)+sqr(2)+sqr(1) ] * 32 bit = ~135% of non-mipmapped texture (more or less).......

Similar Threads

  1. Shadow mapping question
    By bsabiston in forum OpenGL: Basic Coding
    Replies: 2
    Last Post: 02-28-2013, 06:15 AM
  2. Question about texture mapping
    By chun0216 in forum OpenGL: Basic Coding
    Replies: 3
    Last Post: 09-28-2011, 05:01 PM
  3. question about texture mapping.
    By night96 in forum OpenGL ES
    Replies: 1
    Last Post: 05-29-2005, 08:05 PM
  4. a question about texture mapping
    By qiongyu_wu in forum OpenGL: Advanced Coding
    Replies: 7
    Last Post: 11-30-2004, 11:12 PM
  5. Another bump mapping question
    By yoale in forum OpenGL: Advanced Coding
    Replies: 11
    Last Post: 05-09-2003, 10:41 AM

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