Add profiling and update Readme

README.md

@@ -6,11 +6,13 @@ Multithreaded C++ path tracer with bounding volume hierarchy (BVH) based on [the
 
 [CUDA version for Nvidia GPUs](https://github.com/al-ro/path-tracer)
 
+### Test scenes
+
 <table width="100%">
  <thead>
  <tr>
   <th width="50%">Scene 0: 3 instances</th>
-  <th width="50%">BVH heat map (max 267) 0.08 s</th>
+  <th width="50%">BVH heat map (max 267)</th>
  </tr>
  </thead>
  <tbody>
@@ -25,7 +27,7 @@ Multithreaded C++ path tracer with bounding volume hierarchy (BVH) based on [the
  <thead>
  <tr>
   <th width="50%">Scene 1: 10,000 instances</th>
-  <th width="50%">BVH heat map (max 600) 0.26 s</th>
+  <th width="50%">BVH heat map (max 600)</th>
  </tr>
  </thead>
  <tbody>
@@ -40,7 +42,7 @@ Multithreaded C++ path tracer with bounding volume hierarchy (BVH) based on [the
  <thead>
  <tr>
   <th width="50%">Scene 2: Model with vertex attributes</th>
-  <th width="50%">BVH heat map (max 123) 0.07 s</th>
+  <th width="50%">BVH heat map (max 123)</th>
  </tr>
  </thead>
  <tbody>
@@ -51,17 +53,46 @@ Multithreaded C++ path tracer with bounding volume hierarchy (BVH) based on [the
  </tbody>
 </table>
 
+|| triangles per mesh | BLAS | time (s) | TLAS | total triangles | max tests
+:---:|:---:|:---:|:---:|:---:|:---:|:---:|
+Scene 0 | 505,848 | 792,591 | 0.88 | 5 | 1,517,544 | 267
+Scene 1 | 505,848 | 792,591 | 0.88 | 19,819 | 5,058,480,000 | 600
+Scene 2 | 3,828 | 4,899 | 0.0049 | 1 | 3,828 | 123
+
+### Performance
+
 - Resolution: 1500 x 800
-- Samples: 320
-- Threads: 10
+- Samples: 100
 - Max bounces: 6
+- CPU: 13th Gen Intel Core i7-13700H × 20
+- GPU: NVIDIA GeForce RTX 3050 6GB
 
-Scene | Render | BVH build | TLAS nodes | Triangles (per model) | BLAS nodes (per model)
-:---:|:---:|:---:|:---:|:---:|:---:|
-0 | 36 s | 0.88 s | 5 | 505,848 | 792,591 
-1 | 269 s | 0.88 s | 19,819 | 505,848 | 792,591 
-2 | 107 s | 0.005 s | 1 | 3,828 | 4899 
+<table width="100%">
+ <tbody>
+ <tr>
+  <td width="50%"><img src="images/bvh_0.png"/></td>
+  <td width="50%"><img src="images/render_0.png"/></td>
+ </tr>
+ </tbody>
+</table>
+
+<table width="100%">
+ <tbody>
+ <tr>
+  <td width="50%"><img src="images/bvh_1.png"/></td>
+  <td width="50%"><img src="images/render_1.png"/></td>
+ </tr>
+ </tbody>
+</table>
 
+<table width="100%">
+ <tbody>
+ <tr>
+  <td width="50%"><img src="images/bvh_2.png"/></td>
+  <td width="50%"><img src="images/render_2.png"/></td>
+ </tr>
+ </tbody>
+</table>
 
 ["Bust of Menelaus"](https://www.myminifactory.com/object/3d-print-bust-of-menelaus-32197) by Scan The World
 

profile.sh

@@ -0,0 +1,60 @@
+echo "Running profiling..."
+
+threads=(10 8 4 2 1)
+
+width=1500
+height=800
+samples=100
+
+echo -e "width: $width \theight: $height \tsamples: $samples \tthreads: ${threads[*]}"
+
+prefix="Render time:"
+
+function cancel {
+ echo "Received SIGQUIT. Exiting."
+ exit 0;
+}
+
+trap cancel SIGQUIT
+
+for scene in `seq 0 2`
+do
+ echo -n "GPU BVH $scene..."
+ file="GPU_BVH"$scene".out"
+ ./PathTracer -w $width -h $height -p $scene -d 0 -a 1>$file
+ timing="$(grep "$prefix" $file)"
+ echo "$timing" | sed -e "s/^$prefix//"
+done
+
+for scene in `seq 0 2`
+do
+ echo -n "GPU scene $scene..."
+ file="GPU_scene"$scene".out"
+ ./PathTracer -w $width -h $height -s $samples -p $scene -d 0 1>$file
+ timing="$(grep "$prefix" $file)"
+ echo "$timing" | sed -e "s/^$prefix//"
+done
+
+for scene in `seq 0 2`
+do
+ for i in ${threads[@]}
+ do
+ echo -n "CPU BVH $scene threads $i..."
+ file="CPU_BVH_"$scene"_threads_"$i".out"
+ ./PathTracer -w $width -h $height -p $scene -d 1 -t $i -a 1>$file
+ timing="$(grep "$prefix" $file)"
+ echo "$timing" | sed -e "s/^$prefix//"
+ done
+done
+
+for scene in `seq 0 2`
+do
+ for i in ${threads[@]}
+ do
+ echo -n "CPU scene $scene threads $i..."
+ file="CPU_scene_"$scene"_threads_"$i".out"
+ ./PathTracer -w $width -h $height -s $samples -p $scene -d 1 -t $i 1>$file
+ timing="$(grep "$prefix" $file)"
+ echo "$timing" | sed -e "s/^$prefix//"
+ done
+done