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can not reproduce playground example code for animation blending (unable to import meshes)

zen85

By zen85,
in Questions & Answers

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zen85 Newbie

zen85

Posted
Posted

hy, i am quite new to babylon.js and i am trying out stuff.

I managed to get babylon.js running on my webspace and i can successfully reproduce for example the animation example from the playground.

however i am actually after the animation blending feature with the model from mixamo. it works great on the playground - but when i copy the the code from there and change the links to the dummy3.babylon file in the playground/scenes/ folder it gives me the following error:

Quote

BJS - [22:11:01]: Unable to import meshes from ./scenes/dummy3.babylon: Error in onSuccess callback

it drives me crazy since i can not find a solution to this and i think i am overlooking something really obvious here. can anybody give me a hint? i attached my code below: 

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html" charset="utf-8"/>
    <title>Babylon - Getting Started</title>
    <!--- Link to the last version of BabylonJS --->
    <script src="https://cdn.babylonjs.com/babylon.js"></script>
    <style>
        html, body {
            overflow: hidden;
            width   : 100%;
            height  : 100%;
            margin  : 0;
            padding : 0;
        }

        #renderCanvas {
            width   : 100%;
            height  : 100%;
            touch-action: none;
        }
    </style>
</head>
<body>
    <canvas id="renderCanvas"></canvas>
    <script>
        window.addEventListener('DOMContentLoaded', function(){
            // get the canvas DOM element
            var canvas = document.getElementById('renderCanvas');

            // load the 3D engine
            var engine = new BABYLON.Engine(canvas, true);
var delayCreateScene = function () {

    // Model by Mixamo

    engine.enableOfflineSupport = false;
    
    // This is really important to tell Babylon.js to use decomposeLerp and matrix interpolation
    BABYLON.Animation.AllowMatricesInterpolation = true;

    var scene = new BABYLON.Scene(engine);

    var camera = new BABYLON.ArcRotateCamera("camera1", Math.PI / 2, Math.PI / 4, 3, new BABYLON.Vector3(0, 1, 0), scene);
    camera.attachControl(canvas, true);

    camera.lowerRadiusLimit = 2;
    camera.upperRadiusLimit = 10;
    camera.wheelDeltaPercentage = 0.01;

	var light = new BABYLON.HemisphericLight("light1", new BABYLON.Vector3(0, 1, 0), scene);
	light.intensity = 0.6;
	light.specular = BABYLON.Color3.Black();

    var light2 = new BABYLON.DirectionalLight("dir01", new BABYLON.Vector3(0, -0.5, -1.0), scene);
    light2.position = new BABYLON.Vector3(0, 5, 5);

    // Shadows
    var shadowGenerator = new BABYLON.ShadowGenerator(1024, light2);
    shadowGenerator.useBlurExponentialShadowMap = true;
    shadowGenerator.blurKernel = 32;
	
    engine.displayLoadingUI();

	BABYLON.SceneLoader.ImportMesh("", "./scenes/", "dummy3.babylon", scene, function (newMeshes, particleSystems, skeletons) {
        var skeleton = skeletons[0];

        shadowGenerator.addShadowCaster(scene.meshes[0], true);
        for (var index = 0; index < newMeshes.length; index++) {
            newMeshes[index].receiveShadows = false;;
        }

        var helper = scene.createDefaultEnvironment({
            enableGroundShadow: true
        });
        helper.setMainColor(BABYLON.Color3.Gray());
        helper.ground.position.y += 0.01;

        // ROBOT
        skeleton.animationPropertiesOverride = new BABYLON.AnimationPropertiesOverride();
        skeleton.animationPropertiesOverride.enableBlending = true;
        skeleton.animationPropertiesOverride.blendingSpeed = 0.05;
        skeleton.animationPropertiesOverride.loopMode = 1;
    
        var idleRange = skeleton.getAnimationRange("YBot_Idle");
        var walkRange = skeleton.getAnimationRange("YBot_Walk");
        var runRange = skeleton.getAnimationRange("YBot_Run");
        var leftRange = skeleton.getAnimationRange("YBot_LeftStrafeWalk");
        var rightRange = skeleton.getAnimationRange("YBot_RightStrafeWalk");
        
        // IDLE
        if (idleRange) scene.beginAnimation(skeleton, idleRange.from, idleRange.to, true);
		       
        // UI
        var advancedTexture = BABYLON.GUI.AdvancedDynamicTexture.CreateFullscreenUI("UI");
        var UiPanel = new BABYLON.GUI.StackPanel();
        UiPanel.width = "220px";
        UiPanel.fontSize = "14px";
        UiPanel.horizontalAlignment = BABYLON.GUI.Control.HORIZONTAL_ALIGNMENT_RIGHT;
        UiPanel.verticalAlignment = BABYLON.GUI.Control.VERTICAL_ALIGNMENT_CENTER;
        advancedTexture.addControl(UiPanel);
        // ..
        var button = BABYLON.GUI.Button.CreateSimpleButton("but1", "Play Idle");
        button.paddingTop = "10px";
        button.width = "100px";
        button.height = "50px";
        button.color = "white";
        button.background = "green";
        button.onPointerDownObservable.add(()=> {
            if (idleRange) scene.beginAnimation(skeleton, idleRange.from, idleRange.to, true);
        });
        UiPanel.addControl(button);
        // ..
        var button1 = BABYLON.GUI.Button.CreateSimpleButton("but2", "Play Walk");
        button1.paddingTop = "10px";
        button1.width = "100px";
        button1.height = "50px";
        button1.color = "white";
        button1.background = "green";
        button1.onPointerDownObservable.add(()=> {
            if (walkRange) scene.beginAnimation(skeleton, walkRange.from, walkRange.to, true);
        });
        UiPanel.addControl(button1);
        // ..
        var button1 = BABYLON.GUI.Button.CreateSimpleButton("but3", "Play Run");
        button1.paddingTop = "10px";
        button1.width = "100px";
        button1.height = "50px";
        button1.color = "white";
        button1.background = "green";
        button1.onPointerDownObservable.add(()=> {
            if (runRange) scene.beginAnimation(skeleton, runRange.from, runRange.to, true);
        });
        UiPanel.addControl(button1);
        // ..
        var button1 = BABYLON.GUI.Button.CreateSimpleButton("but4", "Play Left");
        button1.paddingTop = "10px";
        button1.width = "100px";
        button1.height = "50px";
        button1.color = "white";
        button1.background = "green";
        button1.onPointerDownObservable.add(()=> {
            if (leftRange) scene.beginAnimation(skeleton, leftRange.from, leftRange.to, true);
        });
        UiPanel.addControl(button1);
        // ..
        var button1 = BABYLON.GUI.Button.CreateSimpleButton("but5", "Play Right");
        button1.paddingTop = "10px";
        button1.width = "100px";
        button1.height = "50px";
        button1.color = "white";
        button1.background = "green";
        button1.onPointerDownObservable.add(()=> {
            if (rightRange) scene.beginAnimation(skeleton, rightRange.from, rightRange.to, true);
        });
        UiPanel.addControl(button1);
        // ..
        var button1 = BABYLON.GUI.Button.CreateSimpleButton("but6", "Play Blend");
        button1.paddingTop = "10px";
        button1.width = "100px";
        button1.height = "50px";
        button1.color = "white";
        button1.background = "green";
        button1.onPointerDownObservable.add(()=> {
            if (walkRange && leftRange) {
                scene.stopAnimation(skeleton);
                var walkAnim = scene.beginWeightedAnimation(skeleton, walkRange.from, walkRange.to, 0.5, true);
                var leftAnim = scene.beginWeightedAnimation(skeleton, leftRange.from, leftRange.to, 0.5, true);

                // Note: Sync Speed Ratio With Master Walk Animation
                walkAnim.syncWith(null);
                leftAnim.syncWith(walkAnim);
            }
        });
        UiPanel.addControl(button1);

        engine.hideLoadingUI();
    });	

    return scene;
};



            // call the createScene function
            var scene = delayCreateScene();

            // run the render loop
            engine.runRenderLoop(function(){
                scene.render();
            });

            // the canvas/window resize event handler
            window.addEventListener('resize', function(){
                engine.resize();
            });
        });
    </script>
</body>
</html>

 

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JohnK Newbie

JohnK

Posted
Posted

Hi @zen85 and welcome to the forum.

In the playgound 

BABYLON.SceneLoader.ImportMesh("", "./scenes/", "dummy3.babylon", scene,

./scenes/ gives the relative path to the image dummy3.babylon. within the playground file structure. If your file structure does not include the file dummy.babylon within a folder called scenes at the same location as your html file then SceneLoader will not be able to find the file.

The second parameter must contain the relative or absolute path of the actual location of the named file.

EDIT correction made as per ssaket post following this one.

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ssaket Newbie

ssaket

Posted
Posted
1 hour ago, JohnK said:

If your file structure does not include the file dummy.babylon.js within a folder called scenes at the same location as your html file then SceneLoader will not be able to find the file.

Hello @JohnK, one small correction - file name should be dummy.babylon not dummy.babylon.js.

Cheers :) 

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