Just wanted to introduce myself and ask some questions

[vidjuheffex]

Hey everybody,
    My name is Julián, just wanted to introduce myself and say how cool it is there is an official forum. I am a self-taught developer coming from vfx-scripting as my introduction to programming.

Babylon.js is really cool so far but already I have a few questions.

Thought it would be easier to host an example an discuss the issues I am having (and where I suspect they may be coming from).

http://www.vidjuheffex.com/html5tests/babylontest1/index.html

1) This is a combination of requirejs, and loads knockout and jquery (as i go to those often) despite not using them. It loads babylon as a shim config in require. And the lot of it (plus my modules) are optimized using r.js through node. Hand.js is added in a script tag before the rest as I wasn't sure how to load something that should behave as an "invisible" polyfill through require.

2) Some findings: While on IE11 (windows 8.1 RTM) I get no errors when navigating to the page in the console. However in both Chrome and Firefox I get nagged about an xhr.request failure for monkey.babylon.manifest (monkey.babylon being the file I am loading)

The page works fine and I admit I had some troubles adding the MIME types to my .htaccess file, and the fact that the optimization step ruined my referenced paths. But I don't think in the tinkering I did with those files that I would have introduced a reference to a .manifest file.

3) The scene has a Light0 omnilight called "Omni0" and a vector position in this case 100,100,100. If I add a light1 omni1 at vector position -100,100,100 nothing happens. If I comment out the first light I then see my other light. But two lights on opposite sides should be filling the shadows no?

I suspect here this might be an issue with the blender export as I read the standard material should support 4 lights. However when I tried to use the hemisphere light only the insides of the ears recieved lights. So maybe I have a normals issue? I just read about the support being for an earlier version of blender so I will test again myself.

Can't wait to see what people come up with using this!

[Temechon]

Hi and welcome here ! By the way, we share the same first name

 

1) Your link is not correct - FTFY : http://www.vidjuheffex.com/html5tests/babylontest1/index.html

 

2) In Chrome, here is the error I get : 

 

Failed to load resource: the server responded with a status of 404 (Not Found)

http://www.vidjuheffex.com/html5tests/babylontest1/html5tests/babylontest1/mdl/monkey.babylon.manifest

 

Did you created a manifest file for your model as described here : https://github.com/BabylonJS/Babylon.js/wiki/Caching-the-resources-in-IndexedDB

It should contains this : 

{ "version" : 1, "enableSceneOffline" : true, "enableTexturesOffline" : true }

For the third point, I don't know what the problem is... Maybe you can add some snippets of your code ?

 

See you !

 

[vidjuheffex]

Thanks for the pointers!

 

 

Thanks for pointing me to the manifest segment had not seen that.

 

I am however running into some new issues. I thought maybe my path issues had to due with the minifying/concatenation of the compile scripts so I have switched over to serving the debug version of the page.

 

the directory structure is like this:

/css

 

/img

 

/js

    /libs

        babylon.js

        hand.js

        jquery.js

        knockout,js

    /app

        core.js

        scene01.js

    main.js

    require.js

/mdl

    monkey.babylon

    monkey.babylon.manifest

 

 

scene01.js has the code to load the .babylon file. it looks like this:

sceneMeshes = BABYLON.SceneLoader.ImportMesh("Suzanne", "../../mdl/", "monkey.babylon", scene, function (newMeshes) {//code goes here}

this works locally, online I get an error stating that vidjuheffex.com/mdl/monkey.babylon cannot be found.

 

 

If it switch the path to "/html5tests/babylontest1/mdl/" i get the model to load again however firefox reports:

 

[16:53:00.929] GET http://www.vidjuheffex.com/html5tests/babylontest1//html5tests/babylontest1/mdl/monkey.babylon.manifest [HTTP/1.1 301 Moved Permanently 191ms]
[16:53:01.126] GET http://www.vidjuheffex.com/html5tests/babylontest1/html5tests/babylontest1/mdl/monkey.babylon.manifest [HTTP/1.1 404 Not Found 272ms]

 

so cleary something is up with my paths. Should I:

 

A) use full paths like above?

use referenced paths? (why are these broken onine? ../../mdl is two dirs up from scene01.js and into the mdl directory?

C) only host at the root of my domain?

 

 

As for the third part:

the code is

            light0 = new BABYLON.PointLight("Omni0", new BABYLON.Vector3(100, 100, 100), scene);
            light1 = new BABYLON.PointLight("Omni1", new BABYLON.Vector3(100, 100, -100), scene);

 

if i comment one or the other it toggles between both. If i leave both on, one takes priority rather than seeing two lights on the model.

[vidjuheffex]

this is a polite bump. hope no one minds.

[GameMonetize]

You have to authorize .babylon and .babylonmeshdata MIME type on your web server