Merge pull request layabox#860 from lirongf/master

add distanceVolumeCull
OwenSharpKing · Apr 6, 2022 · 886bf08 · 886bf08
2 parents a201483 + 899ec7a
commit 886bf08
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Showing 3 changed files with 32 additions and 5 deletions.
diff --git a/src/layaAir/Config3D.ts b/src/layaAir/Config3D.ts
@@ -86,8 +86,8 @@ export class Config3D implements IClone {
 	octreeMinNodeSize: number = 2.0;
 	/** 八叉树松散值。*/
 	octreeLooseness: number = 1.25;
-
-
+	/**enableDistanceCull 距离裁剪*/
+	distanceVolumCull:boolean = false;
 
 	/** 
 	 * 是否开启视锥裁剪调试。

diff --git a/src/layaAir/laya/d3/core/render/BaseRender.ts b/src/layaAir/laya/d3/core/render/BaseRender.ts
@@ -105,6 +105,9 @@ export class BaseRender extends EventDispatcher implements ISingletonElement, IO
 	/**@internal	[NATIVE]*/
 	_cullingBufferIndex: number;
 
+	/**@internal 可以根据不同的值来设置*/
+	_ratioIgnor:number = 0.005;
+
 	/**
 	 * 获取唯一标识ID,通常用于识别。
 	 */

diff --git a/src/layaAir/laya/d3/graphics/FrustumCulling.ts b/src/layaAir/laya/d3/graphics/FrustumCulling.ts
@@ -20,6 +20,7 @@ import { Bounds } from "../core/Bounds";
 import { BoundSphere } from "../math/BoundSphere";
 import { ISceneRenderManager } from "../core/scene/SceneRenderManager/ISceneRenderManager";
 import { Material } from "../core/material/Material";
+import { Config3D } from "../../../Config3D";
 
 
 /**
@@ -94,11 +95,14 @@ export class FrustumCulling {
 		var loopCount: number = Stat.loopCount;
 		for (var i: number = 0, n: number = renderList.length; i < n; i++) {
 			var render: BaseRender = <BaseRender>renders[i];
-			var canPass: boolean;
+			var canPass: boolean = true;
+			if(Config3D._config.distanceVolumCull){
+				canPass = FrustumCulling.cullDistanceVolume(context,render);
+			}
 			if (isShadowCasterCull)
-				canPass = render._castShadow && render._enable;
+				canPass = render._castShadow && render._enable && canPass;
 			else
-				canPass = ((Math.pow(2, render._owner._layer) & cullMask) != 0) && render._enable;
+				canPass = ((Math.pow(2, render._owner._layer) & cullMask) != 0) && render._enable && canPass;
 
 			if (canPass) {
 				Stat.frustumCulling++;
@@ -113,6 +117,26 @@ export class FrustumCulling {
 		}
 	}
 
+	/**
+	 * 视距与包围提裁剪
+	 * @param context 
+	 * @param render 
+	 * @returns 
+	 */
+	static cullDistanceVolume(context:RenderContext3D,render:BaseRender):boolean{
+		let camera = context.camera;
+		if(!camera||!camera.transform) return false;
+		let bound = render.bounds;
+		let center = bound.getCenter();
+		let exten = bound.getExtent();
+		let dis:number = Vector3.distance(camera.transform.position,center);
+		let volum:number = Math.max(exten.x,exten.y,exten.z);
+		if(volum/dis<render._ratioIgnor){
+			return false;
+		}
+		return true;
+	}
+
 	/**
 	 * @internal
 	 */