mirrors/hyperrogue
1
0
Fork 0
mirror of https://github.com/zenorogue/hyperrogue.git synced 2025-09-06 04:17:58 +00:00
Code Issues Releases Wiki Activity

implemented the correct wall shapes in the rotspace raytracer

Browse Source
This commit is contained in:
Zeno Rogue
2024-06-11 00:10:39 +02:00
parent d1ced69cfa
commit 55880bb12b
4 changed files with 113 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
polygons.cpp
View File

@@ -877,9 +877,53 @@ void geometry_information::compute_cornerbonus() { }
// Make a wall
EX int kleinize_sides;
hyperpoint ray_kleinize_rotspace(hyperpoint h, int ks, int id) {
/* todo: in Archimedean tilings it may be the case that pispin is incorrect, as shown by `angle of zero` -- need to carry it to raycaster */
h = pispin * h;
ld& x = h[0];
ld& y = h[1];
ld& z = h[2];
ld& w = h[3];
if(id < ks) h = spin(-TAU * id / ks) * h;
ld dx, dy;
if(sl2) {
dx = -2 * (y*z - x*w);
dy = -2 * (x*z + y*w);
}
else {
dx = +2 * (x*z + y*w);
dy = -2 * (y*z - x*w);
}
if(id >= ks) return hyperpoint(dx, dy, 0, 1);
if(sl2) {
ld vy = -asinh(dy)/2;
ld vx = asinh(dx / cosh(2*vy)) / 2;
hyperpoint h1 = lorentz(1, 3, -vy) * lorentz(0, 2, -vy) * lorentz(0, 3, -vx) * lorentz(2, 1, vx) * h;
ld vz = atan2(h1[2], h1[3]);
return hyperpoint(vx, vy, vz, 1);
}
else {
ld vy = -asin(dy)/2;
ld vx = asin(dx / cos(2*vy)) / 2;
hyperpoint h1 = cspin(0, 3, vy) * cspin(1, 2, -vy) * cspin(1, 3, -vx) * cspin(0, 2, -vx) * h;
ld vz = atan2(h1[2], h1[3]);
return hyperpoint(vx, vy, vz, 1);
}
}
hyperpoint ray_kleinize(hyperpoint h, int id, ld pz) {
if(nil && nilv::nil_structure_index == 0 && among(id, 2, 5)) h[2] = 0;
if(nil && nilv::nil_structure_index == 2 && among(id, 6, 7)) h[2] = 0;
if(rotspace) return ray_kleinize_rotspace(h, kleinize_sides, id);
#if CAP_BT
if(hyperbolic && bt::in()) {
// ld co = vid.binary_width / log(2) / 4;