Camera3D (Mibo) | Mibo

Camera3D Module

Namespace: Mibo.Elmish
Assembly: Mibo.dll

Helper functions for 3D Cameras (Perspective projection).

Use these for first-person, third-person, or any 3D game rendering.

Functions and values

Function or value	Description
`boundingFrustum camera` Full Usage: `boundingFrustum camera` Parameters: camera : `Camera` Returns: `BoundingFrustum`	Calculates the BoundingFrustum for the camera. The frustum represents the visible volume of the camera. Useful for 3D culling (octree queries, sphere/box visibility checks). camera : `Camera` Returns: `BoundingFrustum` Example `let frustum = Camera3D.boundingFrustum camera if Culling.isVisible frustum entitySphere then // Entity is visible, render it` val frustum: obj
`lookAt position target up fov aspectRatio nearPlane farPlane` Full Usage: `lookAt position target up fov aspectRatio nearPlane farPlane` Parameters: position : `Vector3` - Camera position in world space target : `Vector3` - Point the camera is looking at up : `Vector3` - Up vector (typically Vector3.Up) fov : `float32` - Field of view in radians (e.g., MathHelper.PiOver4) aspectRatio : `float32` - Width / Height of the viewport nearPlane : `float32` - Near clipping distance (objects closer are not rendered) farPlane : `float32` - Far clipping distance (objects farther are not rendered) Returns: `Camera`	Creates a camera that looks at a target from a position. position : `Vector3` Camera position in world space target : `Vector3` Point the camera is looking at up : `Vector3` Up vector (typically Vector3.Up) fov : `float32` Field of view in radians (e.g., MathHelper.PiOver4) aspectRatio : `float32` Width / Height of the viewport nearPlane : `float32` Near clipping distance (objects closer are not rendered) farPlane : `float32` Far clipping distance (objects farther are not rendered) Returns: `Camera` Example `let camera = Camera3D.lookAt (Vector3(0f, 10f, 20f)) // position Vector3.Zero // target Vector3.Up // up MathHelper.PiOver4 // 45° FOV (16f / 9f) // aspect ratio 0.1f // near plane 1000f // far plane` val camera: obj
`orbit target yaw pitch radius fov aspect near far` Full Usage: `orbit target yaw pitch radius fov aspect near far` Parameters: target : `Vector3` - Point the camera orbits around yaw : `float32` - Horizontal rotation angle in radians pitch : `float32` - Vertical rotation angle in radians radius : `float32` - Distance from target fov : `float32` - Field of view in radians aspect : `float32` - Aspect ratio near : `float32` - Near plane far : `float32` - Far plane Returns: `Camera`	Creates an orbiting camera using spherical coordinates. Useful for third-person cameras, inspection views, or editor cameras. target : `Vector3` Point the camera orbits around yaw : `float32` Horizontal rotation angle in radians pitch : `float32` Vertical rotation angle in radians radius : `float32` Distance from target fov : `float32` Field of view in radians aspect : `float32` Aspect ratio near : `float32` Near plane far : `float32` Far plane Returns: `Camera`
`screenPointToRay camera screenPos viewport` Full Usage: `screenPointToRay camera screenPos viewport` Parameters: camera : `Camera` screenPos : `Vector2` viewport : `Viewport` Returns: `Ray`	Creates a ray from screen coordinates for mouse/touch picking. The ray originates at the camera's near plane at the screen position and points into the scene. Use Ray.Intersects to test against geometry. camera : `Camera` screenPos : `Vector2` viewport : `Viewport` Returns: `Ray` Example `let ray = Camera3D.screenPointToRay camera mousePos viewport if ray.Intersects(boundingBox).HasValue then // Mouse is hovering over object` val ray: obj