Using a mercador map of the world to texture a polygonal sphere.
For comparason I also texture mapped directly onto a sphere. There is a slight difference. All the texutures use bilinear interpolation. These images are also anti-aliased using 16 samples per pixel in a jittered pattern. There isn't any lighting yet. I'm going to add that in here in a bit. Don't you worry, because I'll get it in. I'd rather rework some of my code and do it right (ok ok, better), than have to hack it out just to show a picture.
I stole the image used to texture map from Nate Robin's page.
| This is the the polygonal model with 80 triangles. |
|
| This is the the polygonal model with 1440 triangles. |
|
| This is the spherical model. |
|
I stole this image from a NSSDC Photo Gallery of Venus.
| This is the the polygonal model with 1440 triangles. |
 |
| This is the spherical model. |
 |
These are with Phong highlights and lighting. One is with identicle geometry but with smooth normals.
| This is the the polygonal model with 1440 triangles. |
 |
| This is the spherical model. |
 |
