From ef297e525c4bb30bdf72c4ffe9c222b8b5c00bfd Mon Sep 17 00:00:00 2001 From: josh Date: Tue, 30 Jan 2024 21:29:07 -0500 Subject: [PATCH] Implement CreateFrustumFromCoordinateFrame() --- include/J3ML/Geometry/Frustum.h | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/include/J3ML/Geometry/Frustum.h b/include/J3ML/Geometry/Frustum.h index f4ff709..14244c6 100644 --- a/include/J3ML/Geometry/Frustum.h +++ b/include/J3ML/Geometry/Frustum.h @@ -36,19 +36,5 @@ namespace Geometry static Frustum CreateFrustumFromCamera(const CoordinateFrame& cam, float aspect, float fovY, float zNear, float zFar); }; - Frustum Frustum::CreateFrustumFromCamera(const CoordinateFrame &cam, float aspect, float fovY, float zNear, float zFar) { - Frustum frustum; - const float halfVSide = zFar * tanf(fovY * 0.5f); - const float halfHSide = halfVSide * aspect; - const Vector3 frontMultFar = cam.Front * zFar; - - frustum.NearFace = Plane{cam.Position + cam.Front * zNear, cam.Front}; - frustum.FarFace = Plane{cam.Position + frontMultFar, -cam.Front}; - frustum.RightFace = Plane{cam.Position, Vector3::Cross(frontMultFar - cam.Right * halfHSide, cam.Up)}; - frustum.LeftFace = Plane{cam.Position, Vector3::Cross(cam.Up, frontMultFar+cam.Right*halfHSide)}; - frustum.TopFace = Plane{cam.Position, Vector3::Cross(cam.Right, frontMultFar - cam.Up * halfVSide)}; - frustum.BottomFace = Plane{cam.Position, Vector3::Cross(frontMultFar + cam.Up * halfVSide, cam.Right)}; - return frustum; - } } \ No newline at end of file