Oct 19 beta OBJ export problems

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 From:  Al (AGREYNOLDS)
3007.1 
Michael,

I have come to depend on the MoI betas to translate 3DM, IGES, or STEP into OBJ files for my application. There seems to be a problem with the OBJ export in the latest beta. On top of that, the previous beta (which had no such problem) is now disabled so I'm dead in the water.

1. The problem appears to be with vertex normals causing banded shading on simple cylinders for example. Also, Rhino 4.0SR6 reads but doesn't display any geometry from a beta created OBJ file. I have attached OBJ files created by version 1.1 and the latest 2.0 beta made from the same Rhino flashlight.3dm tutorial file.

2. Shouldn't you allow at least one beta overlap period to avoid a new bug leaving a user dead in the water.

Al

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 From:  Al (AGREYNOLDS)
3007.2 In reply to 3007.1 
Michael,

Please disregard! The problem in on my end.

Al
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 From:  BurrMan
3007.3 In reply to 3007.2 
Hey I've done that! It's kindof hard to catch him with something as dramatic as that :O

I havnt seen it yet.
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 From:  Michael Gibson
3007.4 In reply to 3007.1 
Hi Al, I'm glad you got it figured out!

I took a quick look at your 2 files anyway, and it looks like the flashlight2.obj file has different style text line endings than MoI itself generates - was that run through some external processing step after it was saved from MoI?


> 2. Shouldn't you allow at least one beta overlap period to
> avoid a new bug leaving a user dead in the water.

Yeah normally I try to do this. In this particular release I was hoping to have it be the last one for v2 and so I pushed a bit longer than normal to try and get everything in there (which still didn't happen though).

- Michael
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 From:  Al (AGREYNOLDS)
3007.5 In reply to 3007.4 
Michael,

Yes, I uploaded the wrong Flashlight2.obj file. That one was processed my code to delete all the "vt" lines.

The whole post was triggered by a single character typo in my own code. The problem just happened to surface just after I downloaded the new MoI beta, so of course I blamed it all on you!!!

Sorry,
Al
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 From:  Michael Gibson
3007.6 In reply to 3007.5 
Hi Al, no problem!

For the next beta, I've added in an option in the moi.ini file so you can disable writing out texture coordinates (the vt lines) from the OBJ file generated by MoI.

So that may help to eliminate your extra processing step, unless you were doing other things in that step as well.

But anyway, in the next beta it will be this setting:

[OBJ Export]
WriteTextureCoordinates=y


- Michael
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 From:  Al (AGREYNOLDS)
3007.7 In reply to 3007.6 
Wow! Thanks Michael. That will definitely steamline things on my end.

Al
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