added uniform buffers, small tweaks

- fixed aspect ratio being the inverse of what it's supposed to be
- use std::chrono::high_resolution_clock instead of system_clock
- convert ellapsed time to float representing seconds
- renamed engine::math::Matrix4::projection to perspective
- use [0,1] instead of [-1,1] for the range of z values, to be aligned
  with vulkan
- added engine::math::Matrix4::{look_at,transpose}

1 files changed, 6 insertions, 0 deletions

diff --git a/src/vulkan_utils.hpp b/src/vulkan_utils.hpp
index dd57afc..1efc73e 100644
--- a/src/vulkan_utils.hpp
+++ b/src/vulkan_utils.hpp
@@ -9,6 +9,7 @@
 #include <GLFW/glfw3.h>
 
 #include "math/vector.hpp"
+#include "math/mat4.hpp"
 #include "o3d/vertex.hpp"
 
 namespace engine::vk {
@@ -59,6 +60,11 @@ struct Vertex {
     engine::math::Vector3 col;
 };
 
+// TODO: move to a better place. Also, see TODOs for struct Vertex
+struct UniformBufferObject {
+    alignas(16) engine::math::Matrix4 model, view, proj;
+};
+
 }
 
 #endif // VULKAN_UTILS_HPP