Camera class
Immutable pinhole camera used for Gaussian splatting.
Holds intrinsics (fx, fy, width, height) and extrinsics (position, rotation) and can produce view/projection matrices in OpenGL conventions (column-major).
- Annotations
Constructors
- Camera({required int id, required int width, required int height, required Vector3 position, required Matrix3 rotation, required double fx, required double fy, double znear = 0.2, double zfar = 200.0, double ndcYSign = -1.0})
-
Creates a camera with explicit intrinsics and extrinsics.
const
- Camera.createDefault({required double width, required double height, required double ndcYSign, double horizontalFovDegrees = 45.0, Vector3? position, Matrix3? rotation, int id = 0, double znear = 0.2, double zfar = 200.0})
-
Creates a reasonable default camera from a horizontal FOV and image size.
factory
Properties
- fx → double
-
Focal length in pixels along the x-axis.
final
- fy → double
-
Focal length in pixels along the y-axis.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- height → int
-
Image height in pixels.
final
- horizontalFovDegrees → double
-
Current horizontal field of view in degrees.
no setter
- id → int
-
Unique identifier for this camera.
final
- ndcYSign → double
-
Sign applied to clip-space Y (and to fy for screen-space math).
+1 = OpenGL default; −1 = vertically flipped (Flutter texture).
final
- position → Vector3
-
Camera position in world space.
final
- rotation → Matrix3
-
Camera → world rotation (columns: right, up, forward).
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- verticalFovDegrees → double
-
Current vertical field of view in degrees.
no setter
- width → int
-
Image width in pixels.
final
- yIsFlipped → bool
-
Convenience flags
no setter
- zfar → double
-
Far clip plane (OpenGL space).
final
- znear → double
-
Near clip plane (OpenGL space).
final
Methods
-
copyWith(
{int? id, int? width, int? height, Vector3? position, Matrix3? rotation, double? fx, double? fy, double? znear, double? zfar, double? ndcYSign}) → Camera - Creates a copy with selected fields changed.
-
copyWithPose(
{required Vector3 position, required Matrix3 rotation}) → Camera - Returns a new camera with updated position and rotation.
-
copyWithViewport(
{required double newWidth, required double newHeight}) → Camera - Returns a new camera that preserves the current horizontal FOV while changing the viewport size.
-
focalXForShader(
) → double - Focal for shader uniforms;
-
focalYForShader(
) → double - Y already carries the NDC sign.
-
invViewRotation3x3(
) → List< double> - Returns the 3×3 inverse view rotation (camera → world), column-major.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
projectionMatrix(
) → Matrix4 - Column-major OpenGL projection built from intrinsics. Uses ndcYSign to control vertical orientation.
-
toString(
) → String -
A string representation of this object.
override
-
viewMatrix(
) → Matrix4 - Returns a column-major OpenGL view matrix (world → camera).
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited