added textures for the hardware renderer

- removed "using" directive in .hpp
- reverse order of arguments for quaternion rotation, i.e. q.rot(v)
  instead of v.rot(q), where q is a quaterinon and v a vector
- pass the inverse of the view matrix to render_and_present_frame, to
  allow light calculation in shaders (we used to just pass the matrix of
  the quaternion of the transformation, i.e. discard scaling and
  translations)
- added another mesh and texture (viking_room) for testing purposes
- added transparent background option
- added Quaternion::look_towards(), which is the equivalent of
  Matrix4::look_at() but only for rotations
- various improvement to .obj parsing
- load texture coordinates from .obj file
- merged duplicate vertices in Mesh::linearize_indices()

1 files changed, 3 insertions, 7 deletions

diff --git a/src/o3d/camera.hpp b/src/o3d/camera.hpp
index eb10450..ff99c08 100644
--- a/src/o3d/camera.hpp
+++ b/src/o3d/camera.hpp
@@ -4,18 +4,14 @@
 #include "math/mat4.hpp"
 #include "math/tform.hpp"
 
-using
-    engine::math::Matrix4,
-    engine::math::Transform;
-
 namespace engine::o3d {
 
 struct Camera {
     float fov;
-    Transform transform;
+    engine::math::Transform transform;
 
-    constexpr Matrix4 to_mat4(float aspect_ratio, float min_z, float max_z) const & {
-        return Matrix4::perspective(fov, aspect_ratio, min_z, max_z) * transform.to_inverse_mat4();
+    constexpr engine::math::Matrix4 to_mat4(float aspect_ratio, float min_z, float max_z) const & {
+        return engine::math::Matrix4::perspective(fov, aspect_ratio, min_z, max_z) * transform.to_inverse_mat4();
     }
 };