message: Randomized wind directions
diff: @@ -115,6 +115,7 @@ public:
  camera.setPerspective(60.0f, (float)width / (float)height, 0.1f, 512.0f);
  camera.setRotation(glm::vec3(-30.0f, -45.0f, 0.0f));
  camera.setTranslation(glm::vec3(0.0f, 0.0f, -3.5f));
  + srand((unsigned int)time(NULL));
  }
  ~VulkanExample()
  @@ -667,9 +668,13 @@ public:
  compute.ubo.deltaT = 0.000005f;
  // todo: base on frametime
  //compute.ubo.deltaT = frameTimer * 0.0075f;
  +
  + std::mt19937 rg((unsigned)time(nullptr));
  + std::uniform_real_distribution<float> rd(1.0f, 6.0f);
  +
  if (simulateWind) {
  - compute.ubo.gravity.x = sin(glm::radians(-timer * 360.0f)) * 4.0f;
  - compute.ubo.gravity.z = sin(glm::radians(timer * 360.0f)) * 4.0f;
  + compute.ubo.gravity.x = cos(glm::radians(-timer * 360.0f)) * (rd(rg) - rd(rg));
  + compute.ubo.gravity.z = sin(glm::radians(timer * 360.0f)) * (rd(rg) - rd(rg));
  }
  else {
  compute.ubo.gravity.x = 0.0f;
  