默认使用FXAA提高亮显性能

src/GraphicsSystem/FXAAPass.ts

@@ -0,0 +1,17 @@
+import { FXAAShader, ShaderPass } from "three";
+require("three-EffectComposer");
+require("three-ShaderPass");
+require("three-FXAAShader");
+
+export class FXAAPass extends ShaderPass
+{
+    constructor()
+    {
+        super(FXAAShader);
+    }
+
+    setSize(width: number, height: number)
+    {
+        this.uniforms['resolution'].value.set(1 / width, 1 / height);
+    }
+}

src/GraphicsSystem/Viewer.ts

@@ -1,14 +1,16 @@
 import { EffectComposer, Matrix4, Object3D, OutlinePass, RenderPass, Scene, SMAAPass, Vector2, Vector3, WebGLRenderer } from 'three';
 import { begin, end } from 'xaop';
 import { app } from '../ApplicationServices/Application';
+import { arrayRemoveOnce } from '../Common/ArrayExt';
 import { GetEntity } from '../Common/Utils';
 import { Database } from '../DatabaseServices/Database';
 import { Entity } from '../DatabaseServices/Entity/Entity';
 import { GenerateRaycaster } from '../Editor/PointPick';
 import { userConfig } from '../Editor/UserConfig';
-import { ZeroVec, GetBox, GetBoxArr, isPerpendicularityTo } from '../Geometry/GeUtils';
+import { GetBox, GetBoxArr, isPerpendicularityTo, ZeroVec } from '../Geometry/GeUtils';
 import { PlaneExt } from '../Geometry/Plane';
 import { CameraUpdate } from './CameraUpdate';
+import { FXAAPass } from './FXAAPass';
 import { GripScene } from './GripScene';
 import { PreViewer } from './PreViewer';
 
@@ -19,12 +21,17 @@ require("three-SMAAShader");
 require("three-EffectComposer");
 
 require("three-RenderPass");
-require("three-ShaderPass");
 
 require("three-SMAAPass");
 
 require("three-OutlinePass");
 
+enum AAType
+{
+    FXAA = 0,//快速近似抗锯齿(性能更好)
+    SMAA = 1,//多重采样抗锯齿(质量更好)
+}
+
 export class Viewer
 {
     protected NeedUpdate: boolean = true;
@@ -39,9 +46,12 @@ export class Viewer
     PreViewer: PreViewer;
 
     UsePass = false;
+    private _AAType: AAType = AAType.FXAA;
     RenderPass: RenderPass;
     OutlinePass: OutlinePass;
     Composer: EffectComposer;
+    private _EffectFXAAPass: FXAAPass;
+    private _SMAAPass: SMAAPass;
 
     private _Scene: Scene = new Scene;
 
@@ -102,6 +112,26 @@ export class Viewer
     {
         return this._Height;
     }
+
+    set AAType(type: AAType)
+    {
+        if (type !== this._AAType)
+        {
+            if (this._AAType === AAType.FXAA)
+            {
+                arrayRemoveOnce(this.Composer.passes, this._EffectFXAAPass);
+                this.Composer.passes.push(this._SMAAPass);
+            }
+            else
+            {
+                arrayRemoveOnce(this.Composer.passes, this._SMAAPass);
+                this.Composer.passes.push(this._EffectFXAAPass);
+            }
+            this._AAType = type;
+            this.UpdateRender();
+        }
+    }
+
     //初始化render
     InitRender(canvasContainer: HTMLElement)
     {
@@ -144,9 +174,11 @@ export class Viewer
 
         this.Composer.addPass(this.OutlinePass);
 
-        let smaa = new SMAAPass(this.Width, this.Height);
-        smaa.renderToScreen = true;
-        this.Composer.addPass(smaa);
+        this._SMAAPass = new SMAAPass(this.Width, this.Height);
+        this._SMAAPass.renderToScreen = true;
+        this._EffectFXAAPass = new FXAAPass();
+
+        this.Composer.addPass(this._EffectFXAAPass);
 
         this.OnSize();
     }