Reset the accretion disk turbulence on type change

Author: Adriwin06

js/app/ui/gui.js

@@ -610,6 +610,8 @@ function setupGUI() {
         onChange: function() {
             updateDependentVisibility();
             updateShader();
+            observer.turbulenceTimeOffset = -observer.time;
+            shader.needsUpdate = true;
         },
         help: 'Thin disk: Novikov-Thorne (quasars/XRBs). Thick torus: ADAF/RIAF (M87*/Sgr A*). Slim disk: super-Eddington.'
     });

shaders/raytracer/core/defines.glsl

@@ -29,6 +29,7 @@ const float SPECTRUM_TEX_RATIO_RANGE = 6.48053329012;
 
 uniform vec2 resolution;
 uniform float time;
+uniform float turbulence_time_offset;
 uniform float turbulence_loop_enabled;
 uniform float turbulence_loop_seconds;
 

shaders/raytracer/output/trace_ray.glsl

@@ -79,7 +79,7 @@ vec4 trace_ray(vec3 ray) {
     float phi = 0.0;
 
     float t = time;
-    float turb_t = loopable_turbulence_time(time);
+    float turb_t = loopable_turbulence_time(time + turbulence_time_offset);
     float dt = 1.0;
     bool shadow_capture = false;