src/graphics/camera.cpp

   1 #include "camera.hpp"
   2
   3 #include <glm/gtx/rotate_vector.hpp>
   4
   5
   6 namespace tacos {
   7
   8 Camera::Camera(const glm::vec3 &f)
   9 : focus(&f)
  10 , distance(100.0f)
  11 , pitch(1.04719755119659774614f) // π/3
  12 , yaw(0.0f) {
  13
  14 }
  15
  16 void Camera::Focus(const glm::vec3 &f) noexcept {
  17         focus = &f;
  18 }
  19
  20 glm::mat4 Camera::View() const noexcept {
  21         const glm::vec3 position(*focus - distance * rotateY(rotateX(glm::vec3(0.0f, 0.0f, 1.0f), pitch), yaw));
  22         return glm::lookAt(position, *focus, glm::vec3(0.0f, 1.0f, 0.0f));
  23 }
  24
  25 }