1 files changed, 7 insertions, 2 deletions

diff --git a/gfx/shaders/irradiance_map.frag b/gfx/shaders/irradiance_map.frag
index 3cfe5b2..8200e73 100644
--- a/gfx/shaders/irradiance_map.frag
+++ b/gfx/shaders/irradiance_map.frag
@@ -13,6 +13,9 @@ uniform samplerCube Sky;
 
 in vec3 Ray;
 
+// DEBUG
+// in vec2 Texcoord;
+
 layout (location = 0) out vec4 Color;
 
 void main()
@@ -29,8 +32,8 @@ void main()
   //     T
   vec3 N = normalize(Ray);
   vec3 B = (abs(N.x) - 1.0 <= EPS) ? vec3(0.0, 0.0, 1.0) : vec3(1.0, 0.0, 0.0);
-  vec3 T = cross(B, N);
-  B = cross(N, T);
+  vec3 T = normalize(cross(B, N));
+  B = normalize(cross(N, T));
 
   int num_samples = 0;
   vec3 irradiance = vec3(0.0);
@@ -54,6 +57,8 @@ void main()
   irradiance = PI * irradiance / float(num_samples);
 
   // For debugging in trace.
+  //irradiance = texture(Sky, Ray).rgb;
+  // irradiance = vec3(Texcoord, 0.0);
   //irradiance = pow(irradiance, vec3(1.0/2.2));
 
   Color = vec4(irradiance, 1.0);