OpenXRCompositionLayerCylinder

public OpenXRCompositionLayerCylinder();

Creates a curved layer with default parameters. Starts no OpenXR and assigns no LayerViewport. Native support depends on its shape extension; without API a fallback may be used after tree attachment. Constructor success establishes no image or tracking.

public float AspectRatio { get; set; }

Arc-width-to-height ratio, initially 1. Setter rejects <=0. Fallback height is RadiusCentralAngle/AspectRatio, but current IntersectsRay uses RadiusCentralAngle*AspectRatio. At 2, a hit above the visible panel was reproduced. For pointer UI use AspectRatio=1 or Quad until a correct custom hit test exists; scaling does not fix the formula.

public float CentralAngle { get; set; }

Horizontal arc angle in radians, initially Pi/2. Setter rejects <=0; degree-like inspector display does not change C# units. Arc width is Radius*CentralAngle. Setter does not establish all real OpenXR runtime constraints. Match texture aspect and geometry; do not supply 90 instead of Pi/2.

public uint FallbackSegments { get; set; }

Fallback-mesh subdivision count, initially 10. Unsigned; zero is rejected and setter marks geometry dirty. Changes neither native compositor resolution nor geometric ray tests. Equirect subdivides in two directions, increasing memory growth. A very large value is not a quality preset.

public float Radius { get; set; }

Surface radius, initially 1. Setter rejects <=0, stores it, updates the native shape when an extension exists and marks fallback geometry dirty. Use finite positive values, not Entity Scale. Does not change viewport pixel Size; other WorldScale values were not tested.

public float GetAspectRatio();

Reads the stored value. Arc-width-to-height ratio, initially 1. Setter rejects <=0. Fallback height is RadiusCentralAngle/AspectRatio, but current IntersectsRay uses RadiusCentralAngle*AspectRatio. At 2, a hit above the visible panel was reproduced. For pointer UI use AspectRatio=1 or Quad until a correct custom hit test exists; scaling does not fix the formula.

public float GetCentralAngle();

Reads the stored value. Horizontal arc angle in radians, initially Pi/2. Setter rejects <=0; degree-like inspector display does not change C# units. Arc width is Radius*CentralAngle. Setter does not establish all real OpenXR runtime constraints. Match texture aspect and geometry; do not supply 90 instead of Pi/2.

public uint GetFallbackSegments();

Reads the stored value. Fallback-mesh subdivision count, initially 10. Unsigned; zero is rejected and setter marks geometry dirty. Changes neither native compositor resolution nor geometric ray tests. Equirect subdivides in two directions, increasing memory growth. A very large value is not a quality preset.

public float GetRadius();

Reads the stored value. Surface radius, initially 1. Setter rejects <=0, stores it, updates the native shape when an extension exists and marks fallback geometry dirty. Use finite positive values, not Entity Scale. Does not change viewport pixel Size; other WorldScale values were not tested.

public void SetAspectRatio(float aspectRatio);

Configures the surface parameter. Arc-width-to-height ratio, initially 1. Setter rejects <=0. Fallback height is RadiusCentralAngle/AspectRatio, but current IntersectsRay uses RadiusCentralAngle*AspectRatio. At 2, a hit above the visible panel was reproduced. For pointer UI use AspectRatio=1 or Quad until a correct custom hit test exists; scaling does not fix the formula.

public void SetCentralAngle(float angle);

Configures the surface parameter. Horizontal arc angle in radians, initially Pi/2. Setter rejects <=0; degree-like inspector display does not change C# units. Arc width is Radius*CentralAngle. Setter does not establish all real OpenXR runtime constraints. Match texture aspect and geometry; do not supply 90 instead of Pi/2.

public void SetFallbackSegments(uint segments);

Configures the surface parameter. Fallback-mesh subdivision count, initially 10. Unsigned; zero is rejected and setter marks geometry dirty. Changes neither native compositor resolution nor geometric ray tests. Equirect subdivides in two directions, increasing memory growth. A very large value is not a quality preset.

public void SetRadius(float radius);

Configures the surface parameter. Surface radius, initially 1. Setter rejects <=0, stores it, updates the native shape when an extension exists and marks fallback geometry dirty. Use finite positive values, not Entity Scale. Does not change viewport pixel Size; other WorldScale values were not tested.