various improvements

- cleaned up the computation of the camera's matrix
- changed VertexData to being a struct which transmit data between the "vertex shader" and the "fragment shader"
- started working on keyboard and mouse controls
- added fov (field of view)
- changed quaternion to euler angles conversion, from zyx to zxy
- fixed computations of z coordinates in triangle rendering
- improved naming in the triangle rasterizer

1 files changed, 8 insertions, 5 deletions

diff --git a/src/o3d/vertex_data.h b/src/o3d/vertex_data.h
index 71f42cd..22fa76b 100644
--- a/src/o3d/vertex_data.h
+++ b/src/o3d/vertex_data.h
@@ -1,24 +1,27 @@
 #ifndef O3D_VERTEX_DATA_H
 #define O3D_VERTEX_DATA_H
 
+#include "math/vector.h"
+
+using
+    engine::math::Vector3;
+
 namespace engine::o3d {
 
 struct VertexData {
     static constexpr VertexData lerp(const VertexData& vd1, const VertexData& vd2, float b0) {
         return {
-            b0 * vd1.tx + (1.f - b0) * vd2.tx,
-            b0 * vd1.ty + (1.f - b0) * vd2.ty
+            b0 * vd1.world_loc + (1.f - b0) * vd2.world_loc,
         };
     }
 
     static constexpr VertexData bilerp(const VertexData& vd1, const VertexData& vd2, const VertexData& vd3, float b0, float b1) {
         return {
-            b0 * vd1.tx + b1 * vd2.tx + (1.f - b0 - b1) * vd3.tx,
-            b0 * vd1.ty + b1 * vd2.ty + (1.f - b0 - b1) * vd3.ty
+            b0 * vd1.world_loc + b1 * vd2.world_loc + (1.f - b0 - b1) * vd3.world_loc,
         };
     }
 
-    float tx, ty;
+    Vector3 world_loc;
 };
 
 }