neo0. wrote:Indigo does check for degenerated triangles at startup time, and more. But it can not design things for you, so do things right.
I wasn't asking it to design things for me. This is simply another error, like degenerate triangles that it could warn you about.
Finding degenerate triangles is as simple as checking if two of the three vertices in the corners are on the very same position or, more accurate, to check if the three are on a line in space. Relatively simple; probably relatively quick.
Checking for normal directions needs far more advanced math which a) triples or quadruples the time to load the mesh and b) does the same with the whole Indigo file size or c) is so low quality that it's not of use at all.
Indigo relies on you, being able to decide yourself, what's inside and what's outside. If you can't distinquish between "inside" and "outside", you're really wrong in cg at all. (Except for very few very VERY complicated meshes. Though, such meshes usually can't be corrected too well by ANY computer either... So, still no use for something like that.)