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perf: Improve performance for line renderer

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PopSlime
2025-03-20 21:49:28 +08:00
parent 1db25e62e7
commit 8d3f53ba13
1 changed files with 7 additions and 5 deletions
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12
Assets/Cryville.EEW.Unity/Map/LineRenderer.cs
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@@ -150,12 +150,8 @@ namespace Cryville.EEW.Unity.Map {
_mesh.Clear(); _mesh.Clear();
if (_positions == null) return; if (_positions == null) return;
if (_positionCount <= 1) return; if (_positionCount <= 1) return;
float hw = m_width / 2;
int maxVertexCount = 4 * (_positionCount - 1);
var vbuf = ArrayPool<Vector3>.Shared.Rent(maxVertexCount);
var ubuf = ArrayPool<Vector2>.Shared.Rent(maxVertexCount);
var ibuf = ArrayPool<int>.Shared.Rent(3 * (2 + 4 * (_positionCount - 2)));
float hw = m_width / 2;
int i, vi = 0, ii = 0, li = 0, ri = 1; int i, vi = 0, ii = 0, li = 0, ri = 1;
float uvScale = 1 / (m_tilingScale * m_width); float uvScale = 1 / (m_tilingScale * m_width);
Vector2 p0 = _positions[0], p1 = default; Vector2 p0 = _positions[0], p1 = default;
@@ -163,6 +159,12 @@ namespace Cryville.EEW.Unity.Map {
if ((p1 = _positions[i]) != p0) break; if ((p1 = _positions[i]) != p0) break;
} }
if (i >= _positionCount) return; if (i >= _positionCount) return;
int maxVertexCount = 4 * (_positionCount - 1);
var vbuf = ArrayPool<Vector3>.Shared.Rent(maxVertexCount);
var ubuf = ArrayPool<Vector2>.Shared.Rent(maxVertexCount);
var ibuf = ArrayPool<int>.Shared.Rent(3 * (2 + 4 * (_positionCount - 2)));
Vector2 dp0 = NormalizeSmallVector(p1 - p0), np0 = GetNormal(dp0 * hw); Vector2 dp0 = NormalizeSmallVector(p1 - p0), np0 = GetNormal(dp0 * hw);
vbuf[vi] = p0 - np0; ubuf[vi++] = new(0, 0); vbuf[vi] = p0 - np0; ubuf[vi++] = new(0, 0);
vbuf[vi] = p0 + np0; ubuf[vi++] = new(0, 1); vbuf[vi] = p0 + np0; ubuf[vi++] = new(0, 1);