minor optimizations in chunk

[blank.git] / src / camera.cpp

diff --git a/src/camera.cpp b/src/camera.cpp
index 8804d115b36574cdab2618fb441f0d1a50958696..f4e3171b01fb2697062cbb1bea6180f00a9ec109 100644 (file)
--- a/src/camera.cpp
+++ b/src/camera.cpp
@@ -1,74 +1,54 @@
 #include "camera.hpp"
 
+#include "geometry.hpp"
+
 #include <GL/glew.h>
 #include <glm/gtc/matrix_transform.hpp>
 
 
 namespace blank {
 
-Camera::Camera()
-: FPSController()
-, fov(45.0f)
+Camera::Camera() noexcept
+: fov(PI_0p25)
 , aspect(1.0f)
 , near_clip(0.1f)
-, far_clip(100.0f)
-, projection(glm::perspective(fov, aspect, near_clip, far_clip))
-, view(glm::inverse(Transform()))
-, vp(projection) {
-
-}
-
-Camera::~Camera() {
+, far_clip(256.0f)
+, projection(glm::perspective(fov, aspect, near_clip, far_clip)) {
 
 }
 
 
-void Camera::Viewport(int width, int height) {
+void Camera::Viewport(int width, int height) noexcept {
        Viewport(0, 0, width, height);
 }
 
-void Camera::Viewport(int x, int y, int width, int height) {
+void Camera::Viewport(int x, int y, int width, int height) noexcept {
        glViewport(x, y, width, height);
        Aspect(width, height);
 }
 
-void Camera::FOV(float f) {
+void Camera::FOV(float f) noexcept {
        fov = f;
        UpdateProjection();
 }
 
-void Camera::Aspect(float r) {
+void Camera::Aspect(float r) noexcept {
        aspect = r;
        UpdateProjection();
 }
 
-void Camera::Aspect(float w, float h) {
+void Camera::Aspect(float w, float h) noexcept {
        Aspect(w / h);
 }
 
-void Camera::Clip(float near, float far) {
+void Camera::Clip(float near, float far) noexcept {
        near_clip = near;
        far_clip = far;
        UpdateProjection();
 }
 
-Ray Camera::Aim() const {
-       const glm::mat4 inv_vp(glm::inverse(vp));
-       glm::vec4 from = inv_vp * glm::vec4(0.0f, 0.0f, -1.0f, 1.0f);
-       from /= from.w;
-       glm::vec4 to = inv_vp * glm::vec4(0.0f, 0.0f, 1.0f, 1.0f);
-       to /= to.w;
-       return Ray{ glm::vec3(from), glm::normalize(glm::vec3(to - from)) };
-}
-
-
-void Camera::Update(int dt) {
-       FPSController::Update(dt);
-       view = glm::inverse(Transform());
-       vp = projection * view;
-}
 
-void Camera::UpdateProjection() {
+void Camera::UpdateProjection() noexcept {
        projection = glm::perspective(fov, aspect, near_clip, far_clip);
 }