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Added object distributuon calculationg

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Misaki
2024-09-22 00:11:03 +09:00
parent 77d16fbffa
commit df0194ff9c
22 changed files with 375 additions and 100 deletions
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73
Runtime/Cloner/Distribution/ObjectDistribution.cs
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@@ -1,5 +1,5 @@
using System;
using Unity.Mathematics;
using Unity.Mathematics;
using Random = Unity.Mathematics.Random;
namespace Misaki.ArtTool
{
@@ -7,7 +7,74 @@ namespace Misaki.ArtTool
{
public static void ObjectDistribution(int index, ObjectDistributionSetting setting, out float4x4 localMatrix, out bool isValid)
{
throw new NotImplementedException();
var random = new Random();
if (index > uint.MaxValue - setting.seed)
{
random = Random.CreateFromIndex(setting.seed - (uint)index);
}
else
{
random = Random.CreateFromIndex(setting.seed + (uint)index);
}
var position = float3.zero;
var forwardDirection = new float3(0.0f, 0.0f, 1.0f);
var upDirection = new float3(0.0f, 1.0f, 0.0f);
isValid = false;
switch (setting.mode)
{
case ObjectDistributionMode.Surface:
break;
case ObjectDistributionMode.Volume:
var meshScale = setting.meshData.worldMatrix.GetScale();
var meshPosition = setting.meshData.worldMatrix.c3.xyz;
position = random.NextFloat3(-setting.meshData.bounds.extents * meshScale + meshPosition, setting.meshData.bounds.extents * meshScale + meshPosition);
var isInsideMesh = ShapeHelper.IsPointInsideMesh(position, ref setting.meshData);
while (!isInsideMesh)
{
position = random.NextFloat3(-setting.meshData.bounds.extents * meshScale + meshPosition, setting.meshData.bounds.extents * meshScale + meshPosition);
isInsideMesh = ShapeHelper.IsPointInsideMesh(position, ref setting.meshData);
}
isValid = true;
break;
case ObjectDistributionMode.Vertex:
if (ShapeHelper.GetMeshVertexPosition(index, ref setting.meshData, out var vertexPosition))
{
position = vertexPosition;
isValid = true;
}
break;
case ObjectDistributionMode.Edge:
if (ShapeHelper.GetMeshEdgePosition(index, ref setting.meshData, out var edgePosition, out var edgeForward, out var edgeUp))
{
position = edgePosition;
forwardDirection = edgeForward;
upDirection = edgeUp;
isValid = true;
}
break;
case ObjectDistributionMode.PolygonCenter:
if (ShapeHelper.GetMeshPolygonPosition(index, ref setting.meshData, out var polygonPosition))
{
position = polygonPosition;
isValid = true;
}
break;
default:
break;
}
var rotation = quaternion.LookRotationSafe(forwardDirection, upDirection);
localMatrix = float4x4.TRS(position, rotation, new float3(1.0f));
}
}
}