Fixed some camera bugs.

src/display/camera.c

@@ -16,22 +16,20 @@ camera_t *CAMERA_MAIN = NULL;
 void cameraInit(camera_t *camera) {
   assertNotNull(camera, "Not a camera component");
 
-  camera->type = CAMERA_TYPE_PERSPECTIVE
-  ;
-  glm_mat4_identity(camera->transform);
-  camera->perspective.fov = 45.0f;
-
+  camera->type = CAMERA_TYPE_PERSPECTIVE;
+  camera->perspective.fov = glm_rad(45.0f);
   camera->nearClip = 0.1f;
   camera->farClip = 100.0f;
-  glm_look(
-    (vec3){ 3.0f, 3.0f, 3.0f },
+
+  glm_lookat(
+    (vec3){ 5.0f, 5.0f, 5.0f },
     (vec3){ 0.0f, 0.0f, 0.0f },
     (vec3){ 0.0f, 1.0f, 0.0f },
     camera->transform
   );
 }
 
-void cameraPush(camera_t *camera) {
+void cameraPushMatrix(camera_t *camera) {
   assertNotNull(camera, "Not a camera component");
 
   mat4 projection;
@@ -50,12 +48,13 @@ void cameraPush(camera_t *camera) {
       break;
 
     case CAMERA_TYPE_PERSPECTIVE:
+      const float_t aspect = (
+        (float_t)frameBufferGetWidth(FRAMEBUFFER_BOUND) /
+        (float_t)frameBufferGetHeight(FRAMEBUFFER_BOUND)
+      );
       glm_perspective(
         camera->perspective.fov,
-        (
-          (float_t)frameBufferGetWidth(FRAMEBUFFER_BOUND) /
-          (float_t)frameBufferGetHeight(FRAMEBUFFER_BOUND)
-        ),
+        aspect,
         camera->nearClip,
         camera->farClip,
         projection
@@ -63,20 +62,21 @@ void cameraPush(camera_t *camera) {
   }
 
   #if DISPLAY_SDL2
-    mat4 pv;
-    glm_mat4_mul(projection, camera->transform, pv);
+    // mat4 pv;
+    // glm_mat4_mul(projection, camera->transform, pv);
 
     glPushMatrix();
     glMatrixMode(GL_PROJECTION);
     glLoadIdentity();
-    glLoadMatrixf((const GLfloat*)pv);
+    glLoadMatrixf((const GLfloat*)projection);
 
     glMatrixMode(GL_MODELVIEW);
     glLoadIdentity();
+    glLoadMatrixf((const GLfloat*)camera->transform);
   #endif
 }
 
-void cameraPop(void) {
+void cameraPopMatrix(void) {
   #if DISPLAY_SDL2
     glPopMatrix();
   #endif