From 7de221ddcea3838e94b041786a324355e66338ae Mon Sep 17 00:00:00 2001
From: gaozheng <gaozheng.cn@gmail.com>
Date: Thu, 25 Jun 2026 15:40:24 +0800
Subject: [PATCH] =?UTF-8?q?perf(gpr=5Fpoc):=20view-all=20=E6=8B=96?=
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拖动中 viewAllOnInteracting 原每次都提交20条体引擎目标→反复异步重建+上传GPU→
GPU100% thrash→转一下卡死. 改为拖动中只做视锥裁剪(切可见性,便宜)、绝不重建;
重建只在松手EndInteraction触发一次(异步+supersede,快速缩放自动只建最后目标).
---
 tools/gpr_poc/main.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/gpr_poc/main.cpp b/tools/gpr_poc/main.cpp
index 2dcd9fd..fc58e75 100644
--- a/tools/gpr_poc/main.cpp
+++ b/tools/gpr_poc/main.cpp
@@ -4140,10 +4140,18 @@ void viewAllRefreshFrustum(ViewAllState* st) {
   }
 }
 
-// 交互进行中：只重算视锥可见性 + 提交目标（非阻塞），主线程立即继续响应输入。
+// 交互进行中：只做视锥裁剪（便宜，仅切可见性），绝不提交引擎目标/重建纹理。
+// 拖动中频繁提交=20 条体反复重建+上传 GPU→GPU 100% thrash→卡死。拖动只渲已有
+// 纹理（mapper 降采样保流畅）；重建只在松手（EndInteraction）触发一次。
 void viewAllOnInteracting(vtkObject*, unsigned long, void* clientData, void*) {
   auto* st = static_cast<ViewAllState*>(clientData);
-  viewAllRefreshFrustum(st);
+  double planes[24];
+  st->cam->GetFrustumPlanes(st->aspect, planes);
+  for (PlacedSource& ps : *st->lines) {
+    const bool outside = aabbOutsideFrustum(ps.worldBounds, planes);
+    ps.culled = outside;
+    ps.volume->SetVisibility(outside ? 0 : 1);
+  }
 }
 
 // 定时器：非阻塞拉取各可见线后台已就绪的新高清纹理换上 → 有新图才重渲。