Part of the Khronos Group
OpenGL.org

The Industry's Foundation for High Performance Graphics

from games to virtual reality, mobile phones to supercomputers

Results 1 to 2 of 2

Thread: texture interpolating

  1. #1
    Intern Contributor
    Join Date
    May 2002
    Location
    AUSTRIA
    Posts
    83

    texture interpolating

    I have a 1d texture and a quad with four vertices. How is the tex color interpolated in the inner reagion of the element. Is there a paramter to define?

  2. #2
    Super Moderator OpenGL Guru dorbie's Avatar
    Join Date
    Jul 2000
    Location
    Bay Area, CA, USA
    Posts
    3,969

    Re: texture interpolating

    Interpolation is linear on the *triangles*, (it is possible to define a quad with non linear texture and so you see a seam or kink in the interpolation which may be why you are asking). You can change this linear interpolation using 4D texture coords, s,t,r,q where q ia used to weight the interpolation (it adjusts the perspective correct interpolation). For a 1D texture t and r will be ignored, just s and q will be used.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •