How to get proper skins from QME 3.1

[mh]

[Sajt]

I believe the problem was simply that the normals were being calculated based on the split up edges, and it was happening in a "stair-step" pattern causing the edges of some of those "stairs" to go black. I suspect that DarkPlaces recalculates normals on load and even looks for co-locating vertices that aren't attached to the same triangle. Or something.

Here's a screenshot that sort of shows the funny stairstep:

And here's bomb.mdl:

[mh]

Nice one, cheers. DP doesn't recalculate normals by the way, but it does use a lookup table containing the normal vector itself (rather than a precomputed DotProduct) and blends normal vectors at render time (rather than light * (dp1 * blend + dp2 * (1 - blend)).

It does remove duplicate verts at load, but so does DirectQ.

From the looks of the bomb in-game, the ugliness seems to occur on backfacing triangles. I think QWalk's loading code is good (it's almost the same as DirectQ's, but that's irrelevant), but I'm not too certain about that compress_normal function during the saving.