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two-sided display of hyperbolic disk with -1<pconf.alpha<0

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Zeno Rogue
2021-09-16 22:26:23 +02:00
parent eb58d78555
commit e8e6d0aa25
2 changed files with 5 additions and 2 deletions
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5
drawing.cpp
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@@ -306,7 +306,7 @@ EX bool two_sided_model() {
if(in_vr_sphere) return true;
if(pmodel == mdHyperboloid) return !euclid && !in_vr;
// if(pmodel == mdHemisphere) return true;
if(pmodel == mdDisk) return sphere;
if(pmodel == mdDisk) return sphere || (hyperbolic && pconf.alpha < 0 && pconf.alpha > -1);
if(pmodel == mdRetroLittrow) return sphere;
if(pmodel == mdRetroHammer) return sphere;
if(pmodel == mdHemisphere) return !in_vr;
@@ -333,6 +333,9 @@ EX int get_side(const hyperpoint& H) {
double horizon = curnorm / pconf.alpha;
return (H[2] <= -horizon) ? -1 : 1;
}
if(pmodel == mdDisk && hyperbolic && pconf.alpha < 0 && pconf.alpha > -1) {
return (H[2] * (H[2] + pconf.alpha) < sqhypot_d(2, H)) ? -1 : 1;
}
if(pmodel == mdRetroLittrow && sphere) {
return H[2] >= 0 ? 1 : -1;
}

2
shaders.cpp
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@@ -171,7 +171,7 @@ shared_ptr<glhr::GLprogram> write_shader(flagtype shader_flags) {
else if(!vid.consider_shader_projection) {
shader_flags |= SF_PIXELS;
}
else if(among(pmodel, mdDisk, mdBall) && GDIM == 2 && vrhr::rendering() && !sphere) {
else if(among(pmodel, mdDisk, mdBall) && GDIM == 2 && vrhr::rendering() && !sphere && !(hyperbolic && pconf.alpha < 0 && pconf.alpha > -1)) {
shader_flags |= SF_DIRECT | SF_BOX;
vsh += "uniform mediump float uAlpha, uDepth, uDepthScaling, uCamera;";