chore: remove trailing whitespace, add CR at end of file

app-proto/src/components/spheres.frag

@@ -75,7 +75,7 @@ Fragment sphere_shading(vecInv v, vec3 pt, vec4 base_color) {
     // point. i calculated it in my head and decided that the result looked good
     // enough for now
     vec3 normal = normalize(-v.sp + 2.*v.lt.s*pt);
-    
+
     float incidence = dot(normal, light_dir);
     float illum = mix(0.4, 1.0, max(incidence, 0.0));
     return Fragment(pt, normal, vec4(illum * base_color.rgb, base_color.a));
@@ -110,7 +110,7 @@ vec2 sphere_cast(vecInv v, vec3 dir) {
     float a = -v.lt.s * dot(dir, dir);
     float b = dot(v.sp, dir);
     float c = -v.lt.t;
-    
+
     float adjust = 4.*a*c/(b*b);
     if (adjust < 1.) {
         // as long as `b` is non-zero, the linear approximation of
@@ -136,7 +136,7 @@ vec2 sphere_cast(vecInv v, vec3 dir) {
 void main() {
     vec2 scr = (2.*gl_FragCoord.xy - resolution) / shortdim;
     vec3 dir = vec3(focal_slope * scr, -1.);
-    
+
     // cast rays through the spheres
     const int LAYER_MAX = 12;
     TaggedDepth top_hits [LAYER_MAX];
@@ -144,7 +144,7 @@ void main() {
     for (int id = 0; id < sphere_cnt; ++id) {
         // find out where the ray hits the sphere
         vec2 hit_depths = sphere_cast(sphere_list[id], dir);
-        
+
         // insertion-sort the points we hit into the hit list
         float dimming = 1.;
         for (int side = 0; side < 2; ++side) {
@@ -169,14 +169,14 @@ void main() {
             }
         }
     }
-    
+
     /* DEBUG */
     // in debug mode, show the layer count instead of the shaded image
     if (debug_mode) {
         // at the bottom of the screen, show the color scale instead of the
         // layer count
         if (gl_FragCoord.y < 10.) layer_cnt = int(16. * gl_FragCoord.x / resolution.x);
-        
+
         // convert number to color
         ivec3 bits = layer_cnt / ivec3(1, 2, 4);
         vec3 color = mod(vec3(bits), 2.);
@@ -186,7 +186,7 @@ void main() {
         outColor = vec4(color, 1.);
         return;
     }
-    
+
     // composite the sphere fragments
     vec3 color = vec3(0.);
     int layer = layer_cnt - 1;
@@ -203,7 +203,7 @@ void main() {
         // load the current fragment
         Fragment frag = frag_next;
         float highlight = highlight_next;
-        
+
         // shade the next fragment
         hit = top_hits[layer];
         sphere_color = color_list[hit.id];
@@ -213,23 +213,23 @@ void main() {
             vec4(hit.dimming * sphere_color.rgb, sphere_color.a)
         );
         highlight_next = highlight_list[hit.id];
-        
+
         // highlight intersections
         float ixn_dist = intersection_dist(frag, frag_next);
         float max_highlight = max(highlight, highlight_next);
         float ixn_highlight = 0.5 * max_highlight * (1. - smoothstep(2./3.*ixn_threshold, 1.5*ixn_threshold, ixn_dist));
         frag.color = mix(frag.color, vec4(1.), ixn_highlight);
         frag_next.color = mix(frag_next.color, vec4(1.), ixn_highlight);
-        
+
         // highlight cusps
         float cusp_cos = abs(dot(dir, frag.normal));
         float cusp_threshold = 2.*sqrt(ixn_threshold * sphere_list[hit.id].lt.s);
         float cusp_highlight = highlight * (1. - smoothstep(2./3.*cusp_threshold, 1.5*cusp_threshold, cusp_cos));
         frag.color = mix(frag.color, vec4(1.), cusp_highlight);
-        
+
         // composite the current fragment
         color = mix(color, frag.color.rgb, frag.color.a);
     }
     color = mix(color, frag_next.color.rgb, frag_next.color.a);
     outColor = vec4(sRGB(color), 1.);
-}
+}