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fixed add_texture in 3d models

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Zeno Rogue 2023-02-04 00:28:24 +01:00
parent 7ffa2a3806
commit d8a0023c54
1 changed files with 12 additions and 2 deletions
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14
3d-models.cpp
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@ -116,9 +116,19 @@ void geometry_information::add_texture(hpcshape& sh) {
auto& utt = models_texture;
sh.tinf = &utt;
sh.texture_offset = isize(utt.tvertices);
auto f = [] (hyperpoint h) {
if(!embedded_plane && gproduct) return product::inverse_exp(h);
return cgi.emb->actual_to_logical(h);
};
hyperpoint ct = Hypc;
int n = 0;
for(int i=sh.s; i<isize(hpc); i++) ct += f(hpc[i]), n++;
ct /= n;
for(int i=sh.s; i<isize(hpc); i++) {
hyperpoint h = hpc[i];
if(gproduct) h = product::inverse_exp(h);
hyperpoint h = f(hpc[i]) - ct;
ld rad = hypot_d(3, h);
ld factor = 0.50 + (0.17 * h[2] + 0.13 * h[1] + 0.15 * h[0]) / rad;
utt.tvertices.push_back(glhr::makevertex(0, factor, 0));