correct equidistant in H3

2020-12-30 20:56:10 +01:00 · 2020-12-30 20:56:10 +01:00 · cec8a40786
parent d5fc277531
commit cec8a40786
1 changed files with 6 additions and 1 deletions
--- a/shaders.cpp
+++ b/shaders.cpp
@ -302,7 +302,12 @@ shared_ptr<glhr::GLprogram> write_shader(flagtype shader_flags) {
    }
  else if(pmodel == mdPerspective) {
    shader_flags |= SF_PERS3 | SF_DIRECT;
-    if(hyperbolic)
+    if(vrhr::rendering() && hyperbolic) {
+      coordinator += 
+        "t = t * acosh(t[3]) / length(t.xyz);\n"
+        "t[3] = 1.;\n";
+      }
+    else if(hyperbolic)
      distfun = "acosh(t[3])", treset = true;
    else if(euclid || nonisotropic || stretch::in() || (sphere && ray::in_use))
      distfun = "length(t.xyz)", treset = true;