Fixing ray tracing lens

res/shaders/raytracing/ClosestHit.slang

@@ -5,6 +5,7 @@ import Scene;
 import RayTracingData;
 import VertexData;
 import Material;
+import StaticMeshVertexData;
 import MATERIAL_FILE_NAME;
 
 // simplification: all BLAS only have 1 geometry
@@ -194,7 +195,7 @@ void closestHit(inout RayPayload hitValue, in BuiltInTriangleIntersectionAttribu
         }
     }
     // Indirect Illumination: cosine-weighted importance sampling
-    if(hitValue.depth < 12) {
+    if(hitValue.depth < 1) {
     	float r1 = 2 * PI * rnd.x, r2 = rnd.y, r2s = sqrt(r2);
         float3 w = normalLight_WS;
         float3 u = normalize(cross(abs(w.x)>0.1 ? float3(0,1,0) : float3(1,0,0), w));

res/shaders/raytracing/RayGen.slang

@@ -9,7 +9,6 @@ struct Ray
 }
 
 const static float S_O = 6.9;
-const static float f = 0.035;
 const static float A = 0.0;
 
 struct SampleParams
@@ -69,6 +68,8 @@ void raygen()
     float3 cx = -normalize(cross(cam.d, abs(cam.d.y) < 0.9 ? float3(0, 1, 0) : float3(0, 0, 1))), cy = cross(cam.d, cx);
     const float2 sdim = float2(0.036, 0.024);
 
+    float f = sdim.y / (2 * tan(70.0f  * 0.5f));
+
     float S_I = (S_O * f) / (S_O - f);
 
     //-- sample sensor