BabylonJS - Emissive
您可以使用此属性应用颜色和纹理。使用 Emissive,它将辐射纹理或使用的颜色。
语法
考虑以下与 Emissive 属性相关的语法。
materialforbox.emissiveColor = new BABYLON.Color3(1, .2, .7); materialforbox.emissiveTexture = new BABYLON.Texture("images/nature.jpg", scene);
演示
<!doctype html> <html> <head> <meta charset = "utf-8"> <title>BabylonJs - Basic Element-Creating Scene</title> <script src = "babylon.js"></script> <style> canvas {width: 100%; height: 100%;} </style> </head> <body> <canvas id = "renderCanvas"></canvas> <script type = "text/javascript"> var canvas = document.getElementById("renderCanvas"); var engine = new BABYLON.Engine(canvas, true); var createScene = function() { var scene = new BABYLON.Scene(engine); scene.clearColor = new BABYLON.Color3(0, 1, 0); var camera = new BABYLON.ArcRotateCamera("Camera", 1, 0.8, 10, new BABYLON.Vector3(0, 0, 0), scene); camera.attachControl(canvas, true); var light = new BABYLON.HemisphericLight("light1", new BABYLON.Vector3(0, 1, 0), scene); light.intensity = 0.7; var materialforbox = new BABYLON.StandardMaterial("texture1", scene); var box = BABYLON.Mesh.CreateBox("box", '3', scene); box.material = materialforbox; materialforbox.emissiveColor = new BABYLON.Color3(0.5, .2, .2); return scene; }; var scene = createScene(); engine.runRenderLoop(function() { scene.render(); }); </script> </body> </html>
输出
上述代码行生成以下输出 −

带有纹理的 Emissive
现在让我们看看 Emissive 如何与纹理配合使用。
演示
<!doctype html> <html> <head> <meta charset = "utf-8"> <title>BabylonJs - Basic Element-Creating Scene</title> <script src = "babylon.js"></script> <style> canvas {width: 100%; height: 100%;} </style> </head> <body> <canvas id = "renderCanvas"></canvas> <script type = "text/javascript"> var canvas = document.getElementById("renderCanvas"); var engine = new BABYLON.Engine(canvas, true); var createScene = function() { var scene = new BABYLON.Scene(engine); scene.clearColor = new BABYLON.Color3(0, 1, 0); var camera = new BABYLON.ArcRotateCamera("Camera", 1, 0.8, 10, new BABYLON.Vector3(0, 0, 0), scene); camera.attachControl(canvas, true); var light = new BABYLON.HemisphericLight("light1", new BABYLON.Vector3(0, 1, 0), scene); light.intensity = 0.7; var materialforbox = new BABYLON.StandardMaterial("texture1", scene); var box = BABYLON.Mesh.CreateBox("box", '3', scene); box.material = materialforbox; materialforbox.emissiveTexture = new BABYLON.Texture("images/nature.jpg", scene); return scene; }; var scene = createScene(); engine.runRenderLoop(function() { scene.render(); }); </script> </body> </html>
输出
上述代码行生成以下输出 −

如果图像文件不正确,则使用默认纹理,如下所示 −

在此演示中,我们使用了名为 nature.jpg 的图像。图像存储在本地 images/ 文件夹中。您可以下载您选择的任何图像并在演示链接中使用。