# perspective(leftTangent:rightTangent:topTangent:bottomTangent:nearZ:farZ:reverseZ:) Creates an off-axis perspective projection from explicit frustum tangents. ``` static func perspective(leftTangent: Float, rightTangent: Float, topTangent: Float, bottomTangent: Float, nearZ: Float, farZ: Float, reverseZ: Bool = true) -> LowLevelRenderer.Camera.Projection ``` ## Parameters `leftTangent` The tangent of the left frustum half-angle. `rightTangent` The tangent of the right frustum half-angle. `topTangent` The tangent of the top frustum half-angle. `bottomTangent` The tangent of the bottom frustum half-angle. `nearZ` The distance to the near clipping plane. `farZ` The distance to the far clipping plane. `reverseZ` If `true`, the depth range is reversed (1 at near, 0 at far). Defaults to `true`. ## Return Value An off-axis perspective [`LowLevelRenderer.Camera.Projection`](/documentation/RealityKit/LowLevelRenderer/Camera/Projection-swift.struct). --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)