Adding simple test for RT

RayTracer/tests/Test.cpp

@@ -1,3 +1,125 @@
 
-int main(int argc, char* argv[]) { return 1; }
+// #include "NewPlacement.hpp"
 
+#include "RayTracer.hpp"
+#include "Testing.hpp"
+
+#define STB_IMAGE_WRITE_IMPLEMENTATION
+#include "stb_image_write.h"
+
+using namespace tp;
+
+void writeImage(const RayTracer::RenderBuffer& output) {
+  // Save the data to a PNG file
+  struct urgb {
+    uint1 r, g, b, a;
+  };
+
+  Buffer2D<urgb> converted;
+  converted.reserve(output.size());
+
+  for (RayTracer::RenderBuffer::Index i = 0; i < output.size().x; i++) {
+    for (RayTracer::RenderBuffer::Index j = 0; j < output.size().y; j++) {
+      converted.get({i, j}).r = uint1(output.get({i, j}).r * 255);
+      converted.get({i, j}).g = uint1(output.get({i, j}).g * 255);
+      converted.get({i, j}).b = uint1(output.get({i, j}).b * 255);
+      converted.get({i, j}).a = uint1(output.get({i, j}).a * 255);
+    }
+  }
+
+  stbi_write_png("output.png", converted.size().x, converted.size().y, 4, converted.getBuff(), converted.size().x * 4);
+}
+
+bool compareCols(const RGBA& l, const RGBA& r) {
+  auto small = 0.0001f;
+  if ((l.r - r.r) > small) {
+    return false;
+  }
+  if ((l.g - r.g) > small) {
+    return false;
+  }
+  if ((l.b - r.b) > small) {
+    return false;
+  }
+  if ((l.a - r.a) > small) {
+    return false;
+  }
+  return true;
+}
+
+void testRT() {
+  using namespace tp;
+
+  Scene scene;
+
+  scene.mCamera.lookAtPoint({0, 0, 0}, {2, 2, 2}, {0, 0, 1});
+  scene.mCamera.setFOV(3.14 / 4);
+
+  scene.mLights.append({
+      {0, 0, 1.1f},
+      1.f, 0.3f
+  });
+
+  scene.mObjects.append(Object());
+  auto& object = scene.mObjects.last();
+
+  object.mTopology.Points = {
+      {1.000000, 0.000000, 0.000000},
+      {0.000000, 1.000000, 0.000000},
+      {0.000000, 0.000000, 1.000000},
+  };
+
+  object.mTopology.Normals = {
+      {1.000000, 1.000000, 1.000000},
+      {1.000000, 1.000000, 1.000000},
+      {1.000000, 1.000000, 1.000000},
+  };
+
+  object.mTopology.Indexes = {
+      {0, 1, 2},
+  };
+
+  object.mCache.Source = &object.mTopology;
+  object.mCache.updateCache();
+
+  RayTracer::RenderSettings settings = {
+      0,
+      0,
+      {10, 10},
+  };
+
+  RayTracer::RenderBuffer output;
+  output.reserve(RayTracer::RenderBuffer::Index2D(settings.size.x, settings.size.y));
+
+  RayTracer rt;
+  rt.render(scene, output, settings);
+
+  TEST(compareCols(output.get({6, 4}), RGBA {0.560100f, 0.560100f, 0.560100f, 1.000000f}));
+  TEST(compareCols(output.get({6, 5}), RGBA {0.353739f, 0.353739f, 0.353739f, 1.000000f}));
+  TEST(compareCols(output.get({6, 6}), RGBA {0.242577f, 0.242577f, 0.242577f, 1.000000f}));
+  TEST(compareCols(output.get({6, 7}), RGBA {0.176313f, 0.176313f, 0.176313f, 1.000000f}));
+  TEST(compareCols(output.get({6, 8}), RGBA {0.000000f, 0.000000f, 0.000000f, 0.000000f}));
+
+  if (0) {
+    writeImage(output);
+    for (auto i = 0; i < output.size().x; i++) {
+      for (auto j = 0; j < output.size().y; j++) {
+        auto tmp = output.get({i, j});
+        printf("TEST(compareCols(output.get({%i, %i}), RGBA{ %ff, %ff, %ff, %ff }));\n", i, j, tmp.r, tmp.g, tmp.b, tmp.a);
+      }
+    }
+  }
+}
+
+int main(int argc, char* argv[]) {
+  tp::ModuleManifest* ModuleDependencies[] = {&tp::gModuleRayTracer, nullptr};
+  tp::ModuleManifest TestModule("TokenizerTest", nullptr, nullptr, ModuleDependencies);
+
+  if (!TestModule.initialize()) {
+    return 1;
+  }
+
+  testRT();
+
+  TestModule.deinitialize();
+}