how to do Trilinear filtering of textures....

OpenGL OpenGL: Basic Coding
1

Well it maybe a very simple techique but i’m new to texture mapping, some help needed.

2

glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );

And, of course, you need to set magnif. filter to linear, and your textures must have mipmaps.

3

and how do we add mippmaps to our textures…?

4

You can use gluBuild2DMipmaps() instead of glTexImage2D().

You also have to include “GL/glu.h” and add glu32.lib (on Win32 platform) to your project.