Merge pull request #56740 from AnilBK/camera-pre-allocate

core/math/camera_matrix.cpp

@@ -346,6 +346,7 @@ Vector<Plane> CameraMatrix::get_projection_planes(const Transform3D &p_transform
 	 */
 
 	Vector<Plane> planes;
+	planes.resize(6);
 
 	const real_t *matrix = (const real_t *)this->matrix;
 
@@ -360,7 +361,7 @@ Vector<Plane> CameraMatrix::get_projection_planes(const Transform3D &p_transform
 	new_plane.normal = -new_plane.normal;
 	new_plane.normalize();
 
-	planes.push_back(p_transform.xform(new_plane));
+	planes.write[0] = p_transform.xform(new_plane);
 
 	///////--- Far Plane ---///////
 	new_plane = Plane(matrix[3] - matrix[2],
@@ -371,7 +372,7 @@ Vector<Plane> CameraMatrix::get_projection_planes(const Transform3D &p_transform
 	new_plane.normal = -new_plane.normal;
 	new_plane.normalize();
 
-	planes.push_back(p_transform.xform(new_plane));
+	planes.write[1] = p_transform.xform(new_plane);
 
 	///////--- Left Plane ---///////
 	new_plane = Plane(matrix[3] + matrix[0],
@@ -382,7 +383,7 @@ Vector<Plane> CameraMatrix::get_projection_planes(const Transform3D &p_transform
 	new_plane.normal = -new_plane.normal;
 	new_plane.normalize();
 
-	planes.push_back(p_transform.xform(new_plane));
+	planes.write[2] = p_transform.xform(new_plane);
 
 	///////--- Top Plane ---///////
 	new_plane = Plane(matrix[3] - matrix[1],
@@ -393,7 +394,7 @@ Vector<Plane> CameraMatrix::get_projection_planes(const Transform3D &p_transform
 	new_plane.normal = -new_plane.normal;
 	new_plane.normalize();
 
-	planes.push_back(p_transform.xform(new_plane));
+	planes.write[3] = p_transform.xform(new_plane);
 
 	///////--- Right Plane ---///////
 	new_plane = Plane(matrix[3] - matrix[0],
@@ -404,7 +405,7 @@ Vector<Plane> CameraMatrix::get_projection_planes(const Transform3D &p_transform
 	new_plane.normal = -new_plane.normal;
 	new_plane.normalize();
 
-	planes.push_back(p_transform.xform(new_plane));
+	planes.write[4] = p_transform.xform(new_plane);
 
 	///////--- Bottom Plane ---///////
 	new_plane = Plane(matrix[3] + matrix[1],
@@ -415,7 +416,7 @@ Vector<Plane> CameraMatrix::get_projection_planes(const Transform3D &p_transform
 	new_plane.normal = -new_plane.normal;
 	new_plane.normalize();
 
-	planes.push_back(p_transform.xform(new_plane));
+	planes.write[5] = p_transform.xform(new_plane);
 
 	return planes;
 }

scene/3d/camera_3d.cpp

@@ -331,11 +331,13 @@ Vector<Vector3> Camera3D::get_near_plane_points() const {
 	Vector3 endpoints[8];
 	cm.get_endpoints(Transform3D(), endpoints);
 
-	Vector<Vector3> points;
-	points.push_back(Vector3());
-	for (int i = 0; i < 4; i++) {
-		points.push_back(endpoints[i + 4]);
-	}
+	Vector<Vector3> points = {
+		Vector3(),
+		endpoints[4],
+		endpoints[5],
+		endpoints[6],
+		endpoints[7]
+	};
 	return points;
 }