improve shadow map stability

src/window/Camera.cpp

@@ -28,6 +28,9 @@ void Camera::rotate(float x, float y, float z) {
 }
 
 glm::mat4 Camera::getProjection() const {
+    if (projset) {
+        return projection;
+    }
     if (perspective) {
         return glm::perspective(fov * zoom, ar, near, far);
     } else if (flipped) {
@@ -62,6 +65,11 @@ float Camera::getFov() const {
     return fov;
 }
 
+void Camera::setProjection(const glm::mat4& matrix) {
+    projection = matrix;
+    projset = true;
+}
+
 float Camera::getAspectRatio() const {
     return ar;
 }

src/window/Camera.hpp

@@ -21,6 +21,9 @@ public:
     float near = 0.05f;
     float far = 1500.0f;
 
+    bool projset = false;
+    glm::mat4 projection;
+
     Camera() {
         updateVectors();
     }
@@ -36,6 +39,8 @@ public:
     void setFov(float fov);
     float getFov() const;
 
+    void setProjection(const glm::mat4& matrix);
+
     float getAspectRatio() const;
     void setAspectRatio(float ar);
 };