Simple path tracer implementation is done.

tatsy · Apr 15, 2015 · 2c1ec6f · 2c1ec6f
1 parent 0467a09
commit 2c1ec6f
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Showing 3 changed files with 6 additions and 5 deletions.
diff --git a/example/simplept_example.cc b/example/simplept_example.cc
@@ -6,7 +6,7 @@ using namespace rainy;
 int main(int argc, char **argv) {
     std::cout << "Path tracing" << std::endl << std::endl;
 
-    Renderer renderer(200, 200, 16, 2);
+    Renderer renderer(200, 200, 100, 5);
     renderer.render();
 
     return 0;

diff --git a/src/Renderer/Renderer.cc b/src/Renderer/Renderer.cc
@@ -213,9 +213,9 @@ namespace rainy {
         ofs << width << " " << height << " 255" << std::endl;
 
         for (int i = 0; i < width * height; i++) {
-            int r = std::max(0, std::min((int)image[i].x(), 255));
-            int g = std::max(0, std::min((int)image[i].y(), 255));
-            int b = std::max(0, std::min((int)image[i].z(), 255));
+            int r = (int)(255.0 * std::max(0.0, std::min(image[i].x(), 1.0)));
+            int g = (int)(255.0 * std::max(0.0, std::min(image[i].y(), 1.0)));
+            int b = (int)(255.0 * std::max(0.0, std::min(image[i].z(), 1.0)));
             ofs << r << " " << g << " " << b << std::endl;
         }
         ofs.close();

diff --git a/src/Renderer/Scene.h b/src/Renderer/Scene.h
@@ -14,7 +14,8 @@ namespace rainy {
         Sphere(1.0e5, Vector3(50.0, 40.8, -1.0e5 + 250),  Color(),           Color(),                 REFLECTION_DIFFUSE),     // Front wall (black)
         Sphere(1.0e5, Vector3(50.0, 1.0e5, 81.6),         Color(),           Color(0.75, 0.75, 0.75), REFLECTION_DIFFUSE),     // Floor (white)
         Sphere(1.0e5, Vector3(50.0, -1.0e5 + 81.6, 81.6), Color(),           Color(0.75, 0.75, 0.75), REFLECTION_DIFFUSE),     // Ceil (white)
-        Sphere(20.0,  Vector3(65.0, 20.0, 20.0),          Color(),           Color(25.0, 75.0, 25.0), REFLECTION_DIFFUSE),     // Green ball
+        Sphere(20.0,  Vector3(65.0, 20.0, 20.0),          Color(),           Color(0.25, 0.75, 0.25), REFLECTION_DIFFUSE),     // Green ball
+        Sphere(16.5,  Vector3(27.0, 16.5, 47.0),          Color(),           Color(0.99, 0.99, 0.99), REFLECTION_SPECULAR),    // Mirror
         Sphere(16.5,  Vector3(77.0, 16.5, 78),            Color(),           Color(0.99, 0.99, 0.99), REFLECTION_REFRACTION),  // Glass ball
         Sphere(15.0,  Vector3(50.0, 90.0, 81.6),          Color(36, 36, 36), Color(),                 REFLECTION_DIFFUSE),     // Light
     };