Class ScyllaLooseOctreeUtil

Static math-only helpers for working with ScyllaLooseOctree and ScyllaLooseOctreeCore that are safe to call from Burst-compiled code.

Inheritance
object
ScyllaLooseOctreeUtil
Inherited Members
Namespace: Scylla.Core.Structures
Assembly: ScyllaCore.dll
Syntax
public static class ScyllaLooseOctreeUtil
Remarks

These utilities are provided as a convenience for callers preparing ray query parameters. All methods operate purely on numeric types with no managed allocations.

Methods

RcpSafe(float3)

Computes the component-wise reciprocal of a direction vector, substituting float.PositiveInfinity for any component that is exactly zero.

Declaration
public static float3 RcpSafe(float3 dir)
Parameters
Type Name Description
float3 dir

The ray direction vector. Components may be zero for axis-aligned rays; the vector does not need to be normalized.
Returns
Type Description
float3

Component-wise reciprocal of dir, with any zero component replaced by float.PositiveInfinity.
Remarks

Standard AABB slab-test ray intersection relies on dividing by each direction component. When a direction component is zero the ray is exactly axis-aligned on that axis, and the standard math.rcp(0) produces NaN rather than infinity, which breaks the slab test. This method replaces zero-component reciprocals with +Infinity so that the slab test degenerates correctly to a 2D overlap check on the remaining axes.

Pass the result directly as invDir to QueryRay(float3, float3, float, float, NativeList<int>, NativeList<int>) or QueryRay(float3, float3, float, float, NativeList<int>).