some stuff

src/definitions/camera.cpp

@@ -0,0 +1,21 @@
+#include "camera.hpp"
+
+Camera::Camera(glm::vec3 point, glm::vec3 dir, float w, float h, float f) {
+    point = point;
+    direction = dir;
+    w = w; h = h; focalLen = f;
+}
+
+void Camera::Update() {
+    //     Vector3 x_c = c->position;
+    // Vector3 u_c = c->direction;
+    // double z_p = c->focalLength;
+    // Vector3 v_up = vec3_make(0.0, -1.0, 0.0);
+    // Vector3 c_0 = vec3_add(x_c, vec3_mult(u_c, z_p));
+    // Vector3 u_x = vec3_unit(vec3_cross(u_c, v_up));
+    // Vector3 u_y = vec3_cross(vec3_mult(u_c, -1.0), u_x);
+    // c->planeCenter = c_0;
+    // c->planeDirectionX = u_x;
+    // c->planeDirectionY = u_y;
+    // //    Vector3 u_z = vec3_mult(u_c, -1.0); // Normal to the view plane
+}