Question

var arcShape = new THREE.Shape();
arcShape.moveTo( 50, 10 );
arcShape.absarc( 10, 10, 40, 0, Math.PI*2, false );

var map1 = new THREE.ImageUtils.loadTexture( 'moon.jpg' );
var geometry = new THREE.ExtrudeGeometry( arcShape, extrudeSettings );
var new3D = new THREE.Mesh( geometry, new THREE.MeshBasicMaterial( { map: map1 } ) );
new3D.receiveShadow = true;
obj3Dmassive.add( new3D );

纹理（512x512）：http://f3.s.qip.ru/cMfvUhNj.png

结果：http://f3.s.qip.ru/cMfvUhNh.png

如何填充纹理图？

Answer 1

如果您只有直线挤出路径，则可以将纹理应用于拉伸形状，而无需自定义UV生成器。例如

var extrudeSettings = {
                bevelEnabled: false, 
                steps: 1,
                amount: 20, //extrusion depth, don't define an extrudePath
                material:0, //material index of the front and back face
                extrudeMaterial : 1 //material index of the side faces            
            };

var geometry = shape.extrude(extrudeSettings);

var mesh = new THREE.Mesh(geometry, 
    new THREE.MeshFaceMaterial([materialFace, materialSide]));

这对于千篇一律的形状很方便。

Answer 2

编辑：回答过时了。请改为Extruding multiple polygons with multiple holes and texturing the combined shape。

你很幸运。您尝试做的事情已在以下示例中完成：

https://github.com/mrdoob/three.js/blob/master/examples/webgl_geometry_extrude_uvs2.html

您必须指定自己的UV生成器功能。此示例显示了如何执行此操作。

请记住，这只是一个例子。它可能不正确 - 或者在您的情况下易于实施。

如何将纹理应用于THREE.ExtrudeGeometry？

2 个答案: