WebGL stress test: the Stanford Bunny

[Joey Eremondi]

I was able to hack together an extremely rudimentary OBJ parser, and as a result, have been able to test WebGL on some larger models.

I've got the Stanford bunny rendered, though it's not doing anything fancy with shading yet. Renders decently fast, though I'm on a computer with a fairly good GPU.

In the next couple of days, I'll try to get a site going that lets you paste your own OBJ file, as well as better parsing capabilities (vertex normals, texture coordinates, etc.)

You can view the demo here and the source code here. Feel free to send changes or suggestions!

Joey

[John Mayer]

This is really cool! I'll need to learn a bit more about OBJ format but it looks very straightforward and easy :-) so good choice! Is is popular?

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[Conrad Parker]

Awesome, hey it even renders fast enough on my galaxy s2 :)

Conrad.

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[Conrad Parker]

btw. here is a chrome extension for viewing obj files on github:

http://metaphysicaldeveloper.wordpress.com/2013/08/12/viewing-3d-models-directly-on-github/

[Joey Eremondi]

Two major bits of progress:

1. I parse normals now, and have a very rough smooth-shading implementation going: http://share-elm.com/sprout/53909d33e4b07afa6f981b8f

2. I found http://www.corsproxy.com/ wich makes it easy to load remote OBJ files.

[John Mayer]

I think the owner of share-elm needs to update their version of johnpmayer/webgl. Caching does not seem to be working properly. I'll continue to debug this problem.

[John Mayer]

Ah, no, not a bug with webgl, but a subtle bug with your code.

It turns out you are recalculating (mesh infile) every tick. I've made a small change here, adding a new signal "meshSig = lift mesh inFileSig" so the list of triangles are only calculated once.

http://share-elm.com/sprout/5390a617e4b07afa6f981b9d

[Joey Eremondi]

I was wondering why it was so sluggish!
However, I'm getting an unmatched pattern error. Will debug later today. Possibly a problem with corsproxy

[Evan Czaplicki]

Cool :) I made the light stay in the same place by uncommenting some stuff!

[Joey Eremondi]

Nice! Eventually I'll get an example going with separate model and view matrices (model for object position, view for camera position).
I wish I'd had this two years ago when I took my Graphics class, it was a pain fighting with OpenGL C++ libraries and installations.

[John Mayer]

You know, I should honestly approach my undergrad about this. Next time I'm in Philly.