Class PixelSnapping

Namespace: Icy.Rendering

Assembly: IcyUI.dll

Provides pixel snapping for axis-aligned quads, shared by every engine's Draw(ITexture, in TextureRenderingOptions) implementation.

public static class PixelSnapping

Inheritance: object

PixelSnapping

Inherited Members: object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

Snapping rounds the quad's edges (left/top and right/bottom) to whole physical pixels, rather than its position and size separately. Two quads that share an edge in logical units therefore share it in physical pixels at any scale (e.g. 125 % or 150 %), so no seams or 1-pixel gaps appear, and linearly sampled textures aren't blurred by sub-pixel offsets.

Methods

TrySnap(in Transform2D, Rectangle, float, Vector2, out Vector2, out Vector2)

Tries to snap a destination rectangle, transformed by transform, to whole physical pixels.

public static bool TrySnap(in Transform2D transform, Rectangle destination, float rotation, Vector2 origin, out Vector2 position, out Vector2 size)

Parameters

transform Transform2D: The render context's current transform.
destination Rectangle: The destination rectangle before transform is applied.
rotation float: The per-draw rotation in radians, added to the transform's own rotation.
origin Vector2: The per-draw origin; snapping only applies when it is Zero.
position Vector2: The snapped top-left corner in physical pixels.
size Vector2: The snapped size in physical pixels.

Returns