fix: VFX setPositionMesh per-mesh vertex scale with cm-unit fallback (VFX setPositionMesh 点云按 mesh 顶点缩放 + cm-unit 兜底) (Master3.0) - #2308
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…t fix(同步子模块 WebGPU device buffer destroy 幂等修复) Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…r uniform 按粒子年龄采样曲线实现 per-particle alpha 淡入) - VisualEffect: PER_PARTICLE_AGE_CURVE_UNIFORMS 集合驱动 Alpha_Multiplier，把 age 曲线拆成 times/vals 两个 vec4 uniform 传给 render shader 做分段采样；uniform 名补去全部下划线变体兜底（_evaluateShaderExpressions + 纹理 defaults 两处） - ShaderExpressionEvaluator: SampleCurve(time=ageMedian) 走曲线时间平均 _sampleCurveAverage 近似整体亮度；_sampleCurve 改 public 供 VisualEffect 调用；抽具名常量 AGE_MEDIAN_SLOT_NAME / CURVE_AVERAGE_SAMPLE_COUNT Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…loop 重新 fire，修复 spawn 脉冲只触发一次) VFXSpawnerSingleBurst.internalInit 恢复 this.sleeping=false。 之前为修 Infinite-loop 重复 fire 把重置完全禁用，导致有限循环(durationMode=Constant)的 SingleBurst 也只 fire 一次，底圈脉冲无法重复。 Infinite loop 因 loopDuration=-1 不重启、newLoop 只第一次 true，所以仍只 fire 一次，不会回归旧 bug。 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…e follow Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…调试 console.log：VFXRenderer 的 alpha-patch/strip 材质/strip 渲染路径日志、VFXAssetParser 的 runtime parse 与 sampleMesh 日志、VisualEffect.onStart 日志、VFXParticleSystem 的 strip geometry 创建与 outputPhase 日志，均为排查期临时输出，不影响运行逻辑)
…ing with cm-unit fallback (setPositionMesh 点云烘焙支持按 mesh 顶点缩放并对已知 cm-unit mesh 兜底，修复 Ellen.fbx 等 100x 点云火焰喷到屏幕外) Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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改动
VFX
setPositionMesh点云烘焙（VFXAssetParser.ts）支持按 mesh 顶点缩放：_resolveMeshScale(rawScale, uuid)+MESH_CMUNIT_FALLBACK兜底表bakeMeshSurfacePoints/bakeMeshVolumePoints（及相关点云数据函数）增加可选scale参数，对采样点位置乘以缩放meshScale；.lvfx没带时，对已知 cm-unit mesh（Unity fileScale 未应用、顶点 100x，如 Ellen.fbx）兜底 0.01解决的问题
cm-unit 的 mesh（如 Smoke DM 火焰发射面 Ellen.fbx）顶点是 cm 量级（米级 ×100），烘成点云后 100x 过大，粒子喷到屏幕外（看不到火焰）。之前引擎用硬编码 ×0.01 兜底，会错误缩小内置 mesh（如 Capsule swarm）。本改动改为数据驱动 + 仅对已知 cm-unit mesh 兜底。
说明
meshScale串接，不改动各分支既有的采样算法（3.4 拆分版 / Master3.0 面积加权内联版各自保持）。