datatatatata

raytracer/ray_tracing_gltf/hello_vulkan.cpp

@@ -344,17 +344,21 @@ void HelloVulkan::createTextureImages(const VkCommandBuffer& cmdBuf, tinygltf::M
 
 void HelloVulkan::createPointsetImage(const VkCommandBuffer& cmdBuf)
 {
+  //load pointset instead of generating it
   std::vector<vec2> points(m_size.height * m_size.width, vec2(0.f));
 
 
   //generate blue noise points
-  const int              npoints = 262144;
+  /*const int              npoints = 262144;
   utk::CustomHeckSampler sampler(0.606f, 8.f, 0.5);
   auto                   pointset = utk::Pointset<float>{};
   std::cout << std::endl << "generating " << npoints << " blue noise points…" << std::endl;
   sampler.generateSamples(pointset, npoints);
 
   utk::write_text_pointset("pointset_262144.txt", pointset);
+   */
+  //load huge pointset
+  auto pointset = utk::read_text_pointset<long double>("pointset_262144.txt")[0];
 
   //iterate pointset and fill texture
   for(int i = 0; i < pointset.Npts(); ++i)

raytracer/ray_tracing_gltf/shaders/host_device.h

@@ -111,6 +111,6 @@ struct GltfShadeMaterial
   int  pbrBaseColorTexture;
 };
 
-#define WINDOWSIZE 256
+#define WINDOWSIZE 512
 
 #endif

raytracer/ray_tracing_gltf/shaders/raytrace.rgen

@@ -39,8 +39,8 @@ layout(push_constant) uniform _PushConstantRay { PushConstantRay pcRay; };
 
 void main()
 {
-    /*
-    const vec2 rayOriginInPix = vec2(gl_LaunchIDEXT.xy) + pointset[255].xy;
+
+    const vec2 rayOriginInPix = vec2(gl_LaunchIDEXT.xy) + pointset[gl_LaunchIDEXT.x + WINDOWSIZE * gl_LaunchIDEXT.y].xy;
     const vec2 inUV        = rayOriginInPix / vec2(gl_LaunchSizeEXT.xy);
     vec2       d           = inUV * 2.0 - 1.0;
 
@@ -64,6 +64,6 @@ void main()
     tMax, // ray max range
     0// payload (location = 0)
     );
-    */
-    imageStore(image, ivec2(gl_LaunchIDEXT.xy), vec4(pointset[gl_LaunchIDEXT.x + WINDOWSIZE * gl_LaunchIDEXT.y].xy, 0.f, 1.0));
+
+    imageStore(image, ivec2(gl_LaunchIDEXT.xy), vec4(prd.hitValue, 1.0));
 }