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product:: backwall optimization

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Zeno Rogue
2019-08-21 07:33:24 +02:00
parent 3aefce498c
commit 0ab4a30406
4 changed files with 40 additions and 5 deletions
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38
nonisotropic.cpp
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@@ -625,12 +625,30 @@ EX namespace product {
EX pair<cell*, int> get_where(cell *c) { return ((hrmap_product*)currentmap)->where[c]; }
EX int cwall_offset, cwall_mask;
void drawcell_stack(cell *c, transmatrix V, int spinv, bool mirrored) {
if(sphere) gmatrix[c] = V; /* some computations need gmatrix0 for underlying geometry */
bool s = sphere;
in_actual([&] {
cell *c0 = get_at(c, current_view_level);
cwall_offset = wall_offset(c0);
if(s) cwall_mask = (1<<c->type) - 1;
else {
cwall_mask = 0;
ld d = V[2][2];
for(int i=0; i<c->type; i++) {
ld d1 = (V * cgi.walltester[cwall_offset + i])[2];
if(c0->item == itGold) println(hlog, i, ": ", d, " vs ", d1);
if(d1 < d - 1e-6) cwall_mask |= (1<<i);
}
}
cwall_mask |= (2<<c->type);
int flat_distance = hdist0(product_decompose(tC0(V)).second);
int max_z = flat_distance > sightranges[gProduct] ? 0 : sqrt(sightranges[gProduct] * sightranges[gProduct] - flat_distance * flat_distance) + 1;
for(int z=-max_z; z<=max_z; z++) {
if(z == 0) cwall_mask ^= (2<<c->type);
if(z == 1) cwall_mask ^= (1<<c->type);
cell *c1 = get_at(c, current_view_level+z);
setdist(c1, 7, NULL);
drawcell(c1, V * mscale(Id, cgi.plevel * z), spinv, mirrored);
@@ -667,10 +685,22 @@ EX namespace product {
cell *c1 = get_where(c).first;
wo = isize(cgi.shWall3D);
int won = wo + c->type;
cgi.shWall3D.resize(won);
cgi.shPlainWall3D.resize(won);
cgi.shWireframe3D.resize(won);
cgi.shMiniWall3D.resize(won);
cgi.reserve_wall3d(won);
for(int i=0; i<c1->type; i++) {
hyperpoint w;
in_underlying_geometry([&] {
/* mirror image of C0 in the axis h1-h2 */
hyperpoint h1 = get_corner_position(c1, i);
hyperpoint h2 = get_corner_position(c1, i+1);
transmatrix T = gpushxto0(h1);
T = spintox(T * h2) * T;
w = T * C0;
w[1] = -w[1];
w = inverse(T) * w;
});
cgi.walltester[wo + i] = w;
}
for(int i=0; i<c1->type; i++)
cgi.make_wall(wo + i, {product::get_corner(c1, i, -1), product::get_corner(c1, i, +1), product::get_corner(c1, i+1, +1), product::get_corner(c1, i+1, -1)});