Images for Readme

src/Blades.h

@@ -4,7 +4,7 @@
 #include <array>
 #include "Model.h"
 
-constexpr static unsigned int NUM_BLADES = 1 << 13;
+constexpr static unsigned int NUM_BLADES = 1 << 22;
 constexpr static float MIN_HEIGHT = 1.3f;
 constexpr static float MAX_HEIGHT = 2.5f;
 constexpr static float MIN_WIDTH = 0.1f;

src/main.cpp

@@ -5,6 +5,8 @@
 #include "Camera.h"
 #include "Scene.h"
 #include "Image.h"
+#include <sstream>
+#include <ostream>
 
 Device* device;
 SwapChain* swapChain;
@@ -143,10 +145,31 @@ int main() {
     glfwSetMouseButtonCallback(GetGLFWWindow(), mouseDownCallback);
     glfwSetCursorPosCallback(GetGLFWWindow(), mouseMoveCallback);
 
+    double fps = 0;
+    double timebase = 0;
+    int frame = 0;
+
     while (!ShouldQuit()) {
         glfwPollEvents();
+
+        frame++;
+        double time = glfwGetTime();
+
+        double delta = time - timebase;
+        if (delta > 1.0) {
+            fps = frame / (delta);
+            timebase = time;
+            frame = 0;
+        }
+
         scene->UpdateTime();
         renderer->Frame();
+
+        std::ostringstream ss;
+        ss << "(";
+        ss.precision(1);
+        ss << std::fixed << fps << " fps)" << applicationName;
+        glfwSetWindowTitle(GetGLFWWindow(), ss.str().c_str());
     }
 
     vkDeviceWaitIdle(device->GetVkDevice());

src/shaders/compute.comp

@@ -3,6 +3,8 @@
 
 #define WORKGROUP_SIZE 32
 #define CULL 1
+#define WIND 1
+#define RESIST 1
 
 layout(local_size_x = WORKGROUP_SIZE, local_size_y = 1, local_size_z = 1) in;
 
@@ -142,16 +144,25 @@ void main() {
     vec3 gravity = front + environmental;
 
     // recovery
+
     vec3 v2_0 = v0 + bladeHeight * up;
+#if RESIST
     vec3 recovery = (v2_0 - v2) * stiffness;
-
+#else
+    vec3 recovery = vec3(0,0,0);
+#endif
     // wind
     vec3 windDir = fbm(v0, totalTime);
     float fd = 1 - length(dot(normalize(windDir), normalize(v2 - v0)));
     float fr = dot(normalize(v2 - v0), up) / bladeHeight;
     float windAlignment = 3 * fd * fr;
 
+#if WIND
     vec3 wind = windDir * windAlignment;
+#else 
+    vec3 wind = vec3(0,0,0);
+#endif
+
     vec3 deltaV2 = (gravity + recovery + wind) * deltaTime;
 
     v2 += deltaV2;