Various objects in Fusion 360 can be applied with material and appearance. Appearance is how the object looks like. While Material is the physical property of an object. It has a default appearance. e.g. an object with “Leather, weathered” would look like this.
However we can override its appearance with other type.
By this mean, the appearance of a material is not changed. Only the appearance of body is changed.
The corresponding APIs are:
- BRepBody.material which is a Material object.
- BrepBody.appearance which is an Appearance object.
So, if we test with the following JavaScript code before overriding the appearance, it will tell the material is “Leather, weathered” and material’s appearance and body’s appearance are both “Leather, weathered”. After overriding, material is “Leather, weathered”, material’s appearance are not either changed, but the body’s appearance is “Glass - Heavy Color (Blue)” now.
function run(context) {
"use strict";
if (adsk.debug === true) {
/*jslint debug: true*/
debugger;
/*jslint debug: false*/
}
var ui;
try {
var app = adsk.core.Application.get();
ui = app.userInterface;
var product = app.activeProduct;
var design = adsk.fusion.Design(product);
//get the first body of the root component
var rootComp = design.rootComponent;
var body = rootComp.bRepBodies.item(0);
//body material
var bodyM = body.material;
ui.messageBox('body material is: ' + bodyM.name);
//appearance with the material
var MaterialA =bodyM.appearance;
ui.messageBox('material appearance is: ' + MaterialA.name);
//body appearance
var BodyA = body.appearance;
ui.messageBox('body appearance is: ' + BodyA.name);
}
catch (e) {
if (ui) {
ui.messageBox('Failed : ' + (e.description ? e.description : e));
}
}
adsk.terminate();
}
To change the material /appearance, you need to firstly get the material/appearance from the libraries, and set them to object.material or object.appearance.
function run(context) {
"use strict";
if (adsk.debug === true) {
/*jslint debug: true*/
debugger;
/*jslint debug: false*/
}
var ui;
try {
var app = adsk.core.Application.get();
ui = app.userInterface;
var product = app.activeProduct;
var design = adsk.fusion.Design(product);
//get the first body of the root component
var rootComp = design.rootComponent;
var body = rootComp.bRepBodies.item(0);
//body material
var bodyM = body.material;
ui.messageBox('body material is: ' + bodyM.name);
//appearance with the material
var MaterialA =bodyM.appearance;
ui.messageBox('material appearance is: ' + MaterialA.name);
//body appearance
var BodyA = body.appearance;
ui.messageBox('body appearance is: ' + BodyA.name);
//get material lib
var mLibs = app.materialLibraries;
var mLib = mLibs.itemByName("Fusion 360 Material Library");
//get one material from this lib
var mOne = mLib.materials.itemByName("ABS Plastic");
//change body material
body.material = mOne;
app.activeViewport.refresh();
ui.messageBox('take a look at the screen after material is changed: ');
//get appearance lib
var appearanceLib1 = mLibs.itemByName("Fusion 360 Appearance Library");
//get one material from this lib
var aOne = appearanceLib1.appearances.itemByName("Fabric (Green)");
//change body appearance
body.appearance = aOne;
app.activeViewport.refresh();
ui.messageBox('take a look at the screen after appearance is changed: ');
}
catch (e) {
if (ui) {
ui.messageBox('Failed : ' + (e.description ? e.description : e));
}
}
adsk.terminate();
}
