Question

我对away3d相当新。在用阴影对象组合一个基本场景后，我想知道他们为什么不相互遮挡阴影？

在我的例子中，在平面上方有一个立方体，在两者之上有一个方向光。如何让立方体在它下面的平面上投下阴影？

使用3d 3.6

编写示例

package  {

import flash.display.MovieClip;
import flash.events.*;
import away3d.containers.View3D;
import away3d.primitives.Cube;
import away3d.primitives.Plane;
import away3d.lights.DirectionalLight3D;
import away3d.materials.PhongColorMaterial;
import away3d.materials.ColorMaterial;
import flash.geom.Vector3D;


public class Test7 extends MovieClip {

    public var view:View3D;
    public var light:DirectionalLight3D;

    public var cube:Cube;
    public var plane:Plane;     

    public function Test7() {
        // constructor code
        view = new View3D();
        view.x = 200;
        view.y = 200;
        view.z = 150;

        light = new DirectionalLight3D();
        light.direction = new Vector3D(0, -1, 0);
        light.brightness = 5;
        view.scene.addLight(light);

        plane = new Plane();
        plane.material = new PhongColorMaterial(0xCCCCCC);
        plane.width = 1000;
        plane.height = 1000;
        plane.segmentsH = 
        plane.segmentsW = 10;
        plane.y = -100;
        view.scene.addChild(plane);

        cube = new Cube();
        cube.rotationX = 45;
        cube.rotationY = 45;
        cube.segmentsD = 
        cube.segmentsH = 
        cube.segmentsW = 10;
        cube.material = new PhongColorMaterial(0x330099);
        view.scene.addChild(cube);

        addChild(view);
        addEventListener(Event.ENTER_FRAME, render);            
    }

    public function render(e:Event):void {
        view.render();
    }
}

}

Answer 1

实时计算阴影对CPU太重，因此需要GPU（远离3D 4.0+）您应该使用图形编辑器将阴影，漫反射光照，全局照明，环境光遮挡等烘焙到纹理。这将为您提供超高质量的静态照明，因为预先计算全局照明可能需要大量时间而不是1秒30秒。使场景更加动态您可以将环境立方体贴图添加到模型或基本光照。

以下是预先计算阴影的演示： http://alternativaplatform.com/ru/demos/temple/ 这个与env地图： http://alternativaplatform.com/swf/demos/mobilephone/mobilephone.swf

Answer 2

您似乎需要在材质中添加shadowMethod。

http://away3d.com/livedocs/away3d/4.0/away3d/materials/DefaultMaterialBase.html#shadowMethod

http://away3d.com/livedocs/away3d/4.0/away3d/materials/methods/FilteredShadowMapMethod.html

看看这个演示，了解它是如何实现的

演示： http://infiniteturtles.co.uk/projects/away3d4/examples/Intermediate_PerelithKnightMD2/Intermediate_PerelithKnightMD2.html

源： http://infiniteturtles.co.uk/projects/away3d4/examples/Intermediate_PerelithKnightMD2/srcview/

如何使对象在away3d中接收阴影

2 个答案: