Jump to content
  • Advertisement
Sign in to follow this  
atg2012

OpenGL Texture Mapping from a skewed quadrilateral to a rectangle in OpenGL

This topic is 2132 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

I have a polygon with the texture mapped in perspective mode, but I am required to look at the polygon along its normal so that it appears to be in 2D plane and then map the texture back on to it.
To start with I have something like this:
[attachment=11244:checker.jpg]

and I want to see something like this after I position my camera to look along the normal of this polygon
[attachment=11245:checker2.gif]

But, the result is split into 2 triangles along the diagonal and the texture has an effect of Affine mapped texture.
My texture image is a 2D image but the rendering in OpenGL is in 3D World Co-ordinates.
Currently for texture mapping I am supplying the vertices of the polygon and corresponding 2D texture co-ordinates.
Could any one advice on what I am required to do in order to get correct texture mapping? Appreciate all your help.
Thanks,

Share this post


Link to post
Share on other sites
Advertisement
Sign in to follow this  

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!