fixes transparent refelctions

shaders/rt_quad.frag

@@ -355,15 +355,15 @@ Tracing trace_ray(uint volume_start, vec3 starting_pos, vec3 start_direction, fl
     if (!result.has_hit && result.has_transparent_hit) {
         // did we stop because nothing could be seen through the object?
         if (max(result.color_mul.x, max(result.color_mul.y, result.color_mul.z)) < 0.1) {
-            // if so count it as a hit
+            // if so count it as a hit and recover the pre transparent color multiplier
             result.has_hit = true;
-        }  
+            result.color_mul = color_mul_transparent;
+        }
         result.end_pos = end_pos_transparent;
         result.end_color = end_color_transparent;
         result.end_volume = end_volume_transparent;
         result.end_facing = end_facing_transparent;
         result.end_raster = end_raster_transparent;
-        result.color_mul = color_mul_transparent;
     }
 
     return result;

src/scene/mod.rs

@@ -83,19 +83,19 @@ impl Scene {
         let shade = (rng.gen_range(0..25) as f32) / 100.0;
         let cube = Cube {
             pos: vec3(10.0, 10.0, 10.0),
-            color: vec3(1.0, 1.0, 1.0),
+            color: vec3(1.0, 0.0, 0.0),
             tex_coord: vec2(0.0, 0.0),
-            transparent: false,
-            roughness: 0,
+            transparent: true,
+            roughness: 32,
         };
         oct_tree.set_cube(cube.clone());
 
         let cube = Cube {
             pos: vec3(10.0, 10.0, 9.0),
-            color: vec3(1.0, 1.0, 1.0),
+            color: vec3(1.0, 0.0, 0.0),
             tex_coord: vec2(0.0, 0.0),
-            transparent: false,
-            roughness: 0,
+            transparent: true,
+            roughness: 32,
         };
         oct_tree.set_cube(cube.clone());