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Fix CSG Brush face moving bugs

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#4207
https://github.com/RomanZhu/FlaxEngine/commit/87bd2dc6e42797084f56128691c506c5a7bf3364
This commit is contained in:
David Svez
2026-09-19 22:50:32 +02:00
committed by mafiesto4
parent 358e39caa7
commit b7077e6abb
1 changed files with 65 additions and 0 deletions
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Source/Editor/SceneGraph/Actors/BoxBrushNode.cs
+65
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@@ -25,6 +25,67 @@ namespace FlaxEditor.SceneGraph.Actors
/// <seealso cref="FlaxEditor.SceneGraph.ActorChildNode{T}" />
public sealed class SideLinkNode : ActorChildNode<BoxBrushNode>
{
private const float MinimumComponentExtent = 0.001f;
internal static Vector3 GetCornerSigns(int cornerIndex)
{
switch (cornerIndex)
{
case 0: return new Vector3(1, 1, 1);
case 1: return new Vector3(1, 1, -1);
case 2: return new Vector3(-1, 1, -1);
case 3: return new Vector3(-1, 1, 1);
case 4: return new Vector3(1, -1, 1);
case 5: return new Vector3(1, -1, -1);
case 6: return new Vector3(-1, -1, -1);
default: return new Vector3(-1, -1, 1);
}
}
internal static Vector3 GetComponentPoint(BoxBrush brush, Vector3 signs)
{
return brush.Transform.LocalToWorld(brush.Center + signs * brush.Size * 0.5f);
}
internal static void SetComponentPoint(BoxBrush brush, Vector3 signs, Vector3 worldPoint)
{
var point = brush.Transform.WorldToLocal(worldPoint);
var center = brush.Center;
var size = brush.Size;
for (int axis = 0; axis < 3; axis++)
{
float sign = GetComponent(signs, axis);
if (Mathf.Abs(sign) < 0.5f)
continue;
float halfSize = GetComponent(size, axis) * 0.5f;
float opposite = GetComponent(center, axis) - sign * halfSize;
float target = GetComponent(point, axis);
if (sign > 0.0f)
target = Mathf.Max(target, opposite + MinimumComponentExtent);
else
target = Mathf.Min(target, opposite - MinimumComponentExtent);
SetComponent(ref center, axis, (target + opposite) * 0.5f);
SetComponent(ref size, axis, Mathf.Abs(target - opposite));
}
brush.Center = center;
brush.Size = size;
}
private static float GetComponent(Vector3 value, int axis)
{
return axis == 0 ? (float)value.X : axis == 1 ? (float)value.Y : (float)value.Z;
}
private static void SetComponent(ref Vector3 value, int axis, float component)
{
if (axis == 0)
value.X = component;
else if (axis == 1)
value.Y = component;
else
value.Z = component;
}
private sealed class BrushSurfaceProxy
{
[HideInEditor]
@@ -169,6 +230,9 @@ namespace FlaxEditor.SceneGraph.Actors
set
{
var actor = Brush;
#if true
SetComponentPoint(actor, _offset * 2.0f, value.Translation);
#else
Transform localTrans = actor.Transform.WorldToLocal(value);
var prevLocalOffset = _offset * actor.Size + actor.Center;
var localOffset = Vector3.Abs(_offset) * 2.0f * localTrans.Translation;
@@ -176,6 +240,7 @@ namespace FlaxEditor.SceneGraph.Actors
float centerScale = Index % 2 == 0 ? 0.5f : -0.5f;
actor.Size += localOffsetDelta;
actor.Center += localOffsetDelta * centerScale;
#endif
}
}