!2351 优化:在ShareView中降低显示精度,并且Revolve和Sweep实体使用BufferGeometry,降低内存占用

src/Add-on/ShareView/ShareViewEntry.tsx

@@ -12,6 +12,7 @@ import { inflateBase64 } from "../../Common/inflate";
 import { CADFiler } from "../../DatabaseServices/CADFiler";
 import { commandMachine } from "../../Editor/CommandMachine";
 import { userConfig } from "../../Editor/UserConfig";
+import { ARC_DRAW_CONFIG } from "../../Geometry/ExtrudeMeshGeomBuilder/SplitCurveParams";
 import { RenderType } from "../../GraphicsSystem/RenderType";
 import { LoadDefaultExr, LoadMetalEnv } from "../../Loader/EnvLoader";
 import "../../UI/Css/blue.less";
@@ -190,6 +191,10 @@ window.onload = async function ()
     if (false)
         new ErrorMonitoring();
 
+    //对于ShareView,我们将显示精度降低
+    ARC_DRAW_CONFIG.Arc_MinSplitCount = 8;
+    ARC_DRAW_CONFIG.ARC_MaxSplitCount = 60;
+
     LogEnable.Display = true;
 
     // ReportErrorWrap.ReportError = ReportError;

src/DatabaseServices/3DSolid/RevolveSolid.ts

@@ -1,9 +1,9 @@
-import { Box3, Face3, Geometry, Matrix4, Mesh, MeshNormalMaterial, Object3D, ShapeUtils, Vector2, Vector3 } from "three";
+import { Box3, BufferGeometry, Face3, Geometry, Matrix4, Mesh, MeshNormalMaterial, Object3D, ShapeUtils, Vector2, Vector3 } from "three";
 import { ColorMaterial } from "../../Common/ColorPalette";
 import { Object3DRemoveAll } from "../../Common/Dispose";
 import { FixIndex, clamp } from "../../Common/Utils";
 import { ObjectSnapMode } from "../../Editor/ObjectSnapMode";
-import { AsVector2, YAxis, ZeroVec, angle, equaln, equalv3, isParallelTo } from "../../Geometry/GeUtils";
+import { AsVector3, YAxis, ZeroVec, angle, equaln, equalv3, isParallelTo } from "../../Geometry/GeUtils";
 import { Matrix2 } from "../../Geometry/Matrix2";
 import { Orbit } from "../../Geometry/Orbit";
 import { RenderType } from "../../GraphicsSystem/RenderType";
@@ -145,7 +145,10 @@ export class RevolveSolid extends Entity
         }
     }
 
-    private _MeshGeometry: Geometry;
+    //del_exp_start
+    private _MeshGeometry: BufferGeometry;
+    //del_exp_end
+    //del_exp_start//del_exp_end private _MeshGeometry: Geometry;
 
     get BoundingBox()
     {
@@ -187,22 +190,15 @@ export class RevolveSolid extends Entity
 
         if (this._CacheContourPoints === undefined)
         {
-            this._CacheContourPoints3D = [];
-            let ocsInv = this._Contour.OCSInv;
-            for (let i = 0; i < this._Contour.EndParam; i++)
+            this._CacheContourPoints = [];
+            for (let p of this._Contour.Shape.getPoints(6))
             {
-                let c = this._Contour.GetCurveAtIndex(i);
-                this._CacheContourPoints3D.push(c.StartPoint);
-                if (c instanceof Arc)
-                {
-                    let minCount = Math.max(2, Math.ceil((c.AllAngle) / Math.PI) * 3);
-                    let count = clamp(c.Length / 20, minCount, 30);
-                    for (let j = 0; j < count; j++)
-                        this._CacheContourPoints3D.push(c.GetPointAtParam((j + 1) / (count + 1)));
-                }
-                this._CacheContourPoints3D.push(c.EndPoint);
+                this._CacheContourPoints.push(p);
+                if (p["_mask_"])
+                    this._CacheContourPoints.push(p);
             }
-            this._CacheContourPoints = this._CacheContourPoints3D.map(p => AsVector2(p.clone().applyMatrix4(ocsInv)));
+
+            this._CacheContourPoints3D = this._CacheContourPoints.map(p => AsVector3(p).applyMatrix4(this._Contour.OCSNoClone));
 
             this._CacheContourFaces = ShapeUtils.triangulateShape(this._CacheContourPoints, []) as [number, number, number][];
 
@@ -284,8 +280,11 @@ export class RevolveSolid extends Entity
         RevolveLine(geo, this._CacheContourPoints3DQ, this._CacheContourPoints3DQ2, this._StartAngle, allAngle, us);
         geo.computeFaceNormals();
         geo.computeVertexNormals();
-        this._MeshGeometry = geo;
-        return geo;
+
+        //del_exp_start 因为UE不需要BufferGeometry 直接提供Geom就好了
+        this._MeshGeometry = new BufferGeometry().fromGeometry(geo);
+        //del_exp_end
+        return this._MeshGeometry;
     }
 
     //#region Draw

src/DatabaseServices/3DSolid/SweepSolid.ts

@@ -163,7 +163,7 @@ export class SweepSolid extends Entity
         Log("错误:提供的轮廓没有和路径垂直!", LogType.Error);
     }
 
-    private _MeshGeometry: SweepGeometry;
+    private _MeshGeometry: SweepGeometry | BufferGeometry;
     private _LineGeom: LineGeometry;
     get MeshGeometry()
     {
@@ -182,6 +182,11 @@ export class SweepSolid extends Entity
             this._EdgeGeometry = this._MeshGeometry.EdgeGeom;
             this._LineGeom = this._MeshGeometry.LineGeom;
             this._MeshGeometry.edgePts = undefined;
+
+            //del_exp_start 渲染器不需要BufferGeom
+            this._MeshGeometry = new BufferGeometry().fromGeometry(this._MeshGeometry);
+            //del_exp_end
+
             return this._MeshGeometry;
         }
         catch (error)

src/Geometry/ExtrudeMeshGeomBuilder/SplitCurveParams.ts

@@ -8,29 +8,33 @@ import { BUL_IS_LINE_FUZZ } from "../../DatabaseServices/Entity/Polyline";
 import { AsVector3, equaln } from "../GeUtils";
 
 //del_exp_start
-export const ARC_SplitLength = 4;//圆的分段长度
-export const ARC_RADIUS_MIN = 25;//大于半径25的自动优化成36等分圆 保证绘制光滑
-export const Arc_MinSplitCount = 36;//圆的最小分段个数
-export const ARC_MaxSplitCount = 180;//圆的最大分段个数
+export const ARC_DRAW_CONFIG = {
+    ARC_SplitLength: 4,//圆的分段长度
+    ARC_RADIUS_MIN: 25,//大于半径25的自动优化成36等分圆 保证绘制光滑
+    Arc_MinSplitCount: 36,//圆的最小分段个数
+    ARC_MaxSplitCount: 180,//圆的最大分段个数
+};
 //del_exp_end
 
 //del_exp_start
 /*
 //del_exp_end
-export const ARC_SplitLength = 0.4;//圆的分段长度(虚幻引擎的尺寸单位是厘米)
-export const ARC_RADIUS_MIN = 2.5;//大于半径25的自动优化成36等分圆 保证绘制光滑
-export const Arc_MinSplitCount = 8;//圆的最小分段个数
-export const ARC_MaxSplitCount = 90;//圆的最大分段个数
+export const ARC_DRAW_CONFIG = {
+    ARC_SplitLength: 0.4,//圆的分段长度
+    ARC_RADIUS_MIN: 2.5,//大于半径25的自动优化成36等分圆 保证绘制光滑
+    Arc_MinSplitCount: 8,//圆的最小分段个数
+    ARC_MaxSplitCount: 90,//圆的最大分段个数
+};
 //del_exp_start
 */
 //del_exp_end
 
 export function GetArcDrawCount(arc: Arc | Circle): number
 {
-    let splitCount = arc.Radius / ARC_SplitLength;
+    let splitCount = arc.Radius / ARC_DRAW_CONFIG.ARC_SplitLength;
     //保证是偶数(避免奇数和Shape2计算方式一致导致的干涉)
-    splitCount = clamp(Math.floor(splitCount * 0.5) * 2, Arc_MinSplitCount, ARC_MaxSplitCount);
-    if (arc.Radius > ARC_RADIUS_MIN)
+    splitCount = clamp(Math.floor(splitCount * 0.5) * 2, ARC_DRAW_CONFIG.Arc_MinSplitCount, ARC_DRAW_CONFIG.ARC_MaxSplitCount);
+    if (arc.Radius > ARC_DRAW_CONFIG.ARC_RADIUS_MIN)
         splitCount = Math.max(36, splitCount);
     return splitCount;
 }