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Code Issues Releases Wiki Activity

3D geometries should now render without OpenGL

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Zeno Rogue
2020-04-06 10:43:28 +02:00
parent 43fd94bed6
commit c1ed54763b
5 changed files with 41 additions and 5 deletions
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37
drawing.cpp
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@@ -407,6 +407,12 @@ void coords_to_poly() {
}
}
bool behind3(hyperpoint h) {
if(pmodel == mdGeodesic)
h = lp_apply(inverse_exp(h, iTable));
return h[2] < 0;
}
void addpoly(const transmatrix& V, const vector<glvertex> &tab, int ofs, int cnt) {
if(pmodel == mdPixel) {
for(int i=ofs; i<ofs+cnt; i++) {
@@ -418,6 +424,24 @@ void addpoly(const transmatrix& V, const vector<glvertex> &tab, int ofs, int cnt
return;
}
tofix.clear(); knowgood = false;
if(among(pmodel, mdPerspective, mdGeodesic)) {
if(poly_flags & POLY_TRIANGLES) {
for(int i=ofs; i<ofs+cnt; i+=3) {
hyperpoint h0 = V * glhr::gltopoint(tab[i]);
hyperpoint h1 = V * glhr::gltopoint(tab[i+1]);
hyperpoint h2 = V * glhr::gltopoint(tab[i+2]);
if(!behind3(h0) && !behind3(h1) && !behind3(h2))
addpoint(h0), addpoint(h1), addpoint(h2);
}
}
else {
for(int i=ofs; i<ofs+cnt; i++) {
hyperpoint h = V * glhr::gltopoint(tab[i]);
if(!behind3(h)) addpoint(h);
}
}
return;
}
hyperpoint last = V * glhr::gltopoint(tab[ofs]);
bool last_behind = is_behind(last);
if(!last_behind) addpoint(last);
@@ -1614,7 +1638,12 @@ void dqi_poly::draw() {
coords_to_poly();
color_t col = color;
if(poly_flags & POLY_INVERSE) col = 0;
svg::polygon(polyx, polyy, polyi, col, outline, get_width(this));
if(poly_flags & POLY_TRIANGLES) {
for(int i=0; i<polyi; i+=3)
svg::polygon(polyx+i, polyy+i, 3, col, outline, get_width(this));
}
else
svg::polygon(polyx, polyy, polyi, col, outline, get_width(this));
continue;
}
#endif
@@ -1644,7 +1673,11 @@ void dqi_poly::draw() {
}
filledPolygonColorI(s, polyx, polyy, polyi+5, color);
}
else
else if(poly_flags & POLY_TRIANGLES) {
for(int i=0; i<polyi; i+=3)
filledPolygonColorI(s, polyx+i, polyy+i, 3, color);
}
else
filledPolygonColorI(s, polyx, polyy, polyi, color);
if(current_display->stereo_active()) filledPolygonColorI(aux, polyxr, polyy, polyi, color);