49 lines
1.5 KiB
C#
49 lines
1.5 KiB
C#
|
using System;
|
||
|
|
using UnityEngine;
|
||
|
|
using Unity.Mathematics;
|
||
|
|
|
||
|
|
namespace UnityEngine.Rendering
|
||
|
|
{
|
||
|
|
[Serializable]
|
||
|
|
internal partial struct AABB
|
||
|
|
{
|
||
|
|
public float3 center;
|
||
|
|
public float3 extents; // half the size, must be 0 or greater
|
||
|
|
|
||
|
|
public float3 min { get { return center - extents; } }
|
||
|
|
public float3 max { get { return center + extents; } }
|
||
|
|
|
||
|
|
/// <summary>Returns a string representation of the AABB.</summary>
|
||
|
|
public override string ToString()
|
||
|
|
{
|
||
|
|
return $"AABB(Center:{center}, Extents:{extents}";
|
||
|
|
}
|
||
|
|
|
||
|
|
static float3 RotateExtents(float3 extents, float3 m0, float3 m1, float3 m2)
|
||
|
|
{
|
||
|
|
return math.abs(m0 * extents.x) + math.abs(m1 * extents.y) + math.abs(m2 * extents.z);
|
||
|
|
}
|
||
|
|
|
||
|
|
public static AABB Transform(float4x4 transform, AABB localBounds)
|
||
|
|
{
|
||
|
|
AABB transformed;
|
||
|
|
transformed.extents = RotateExtents(localBounds.extents, transform.c0.xyz, transform.c1.xyz, transform.c2.xyz);
|
||
|
|
transformed.center = math.transform(transform, localBounds.center);
|
||
|
|
return transformed;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal static class AABBExtensions
|
||
|
|
{
|
||
|
|
public static AABB ToAABB(this Bounds bounds)
|
||
|
|
{
|
||
|
|
return new AABB { center = bounds.center, extents = bounds.extents };
|
||
|
|
}
|
||
|
|
|
||
|
|
public static Bounds ToBounds(this AABB aabb)
|
||
|
|
{
|
||
|
|
return new Bounds { center = aabb.center, extents = aabb.extents };
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|