Fix GI

It was using wrong swizzle for depth texture.

data/shaders/rh.frag

@@ -60,7 +60,7 @@ void main(void)
         vec2 uv = RHuv + offset * 0.01;
 
         // Get world position and normal from the RSM sample
-        float depth = texture(dtex, uv).z;
+        float depth = texture(dtex, uv).x;
         vec4 RSMPos = inverse(RSMMatrix) * (2. * vec4(uv, depth, 1.) - 1.);
         RSMPos /= RSMPos.w;
         vec3 RSMAlbedo = texture(ctex, uv).xyz;
@@ -74,7 +74,7 @@ void main(void)
         float dist = distance(SamplePos, RSMPos.xyz) / R_wcs;
         // Determine the incident direction.
         // Avoid very close samples (and numerical instability problems)
-        vec3 RSM_to_RH_dir = (dist <= 0.00) ? vec3(0.) : normalize(SamplePos - RSMPos.xyz);
+        vec3 RSM_to_RH_dir = (dist <= 0.1) ? vec3(0.) : normalize(SamplePos - RSMPos.xyz);
         float dotprod = max(dot(RSM_to_RH_dir, normal.xyz), 0.);
         float factor = dotprod / (0.1 + dist * dist);
 

data/shaders/rhdebug.frag

@@ -10,5 +10,5 @@ void main()
     float r = texture(SHR, uvw).w;
     float g = texture(SHG, uvw).w;
     float b = texture(SHB, uvw).w;
-    FragColor = max(vec4(r, g, b, 1.0), vec4(0.));
+    FragColor = max(10. * vec4(r, g, b, 1.0), vec4(0.));
 }

data/shaders/rhdebug.vert

@@ -15,6 +15,6 @@ void main(void)
     uvw = vec3(gx, gy, gz) / vec3(resolution);
     vec3 WorldPos = (2. * uvw - 1.) * extents;
     gl_Position = ProjectionMatrix * ViewMatrix * RHMatrix * vec4(WorldPos, 1.);
-    gl_PointSize = 100. / gl_Position.w;
+    gl_PointSize = 500. / gl_Position.w;
 
 }