Author Topic: Surface Resolution!  (Read 9856 times)

Keith

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Surface Resolution!
« on: August 07, 2007, 12:58:20 PM »
Okay, not a serious "rant" but I find it interesting that when you do a linear sweep or cut a hole in something their always seems to be one side that is "blockier" than the other side.

You can see a good example of this in the demo real.
The front side appears smooth, but the back side seems rugged.

Is this just an odd thing?

I feel I don't need to max out the surface resolution if only the edge resolution is poor ;)

// end rant
Bah!, where are my scissors and glue?

RMS

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Re: Surface Resolution!
« Reply #1 on: August 10, 2007, 12:39:52 AM »
Yea, unfortunately computer graphics is all about trade-offs. It's really hard to get sharp edges on the holes, it's pretty technical to explain why though. One way to improve the result is to go to "View->Polygonizer Control" and change the polygonizer to "Extended Marching Cubes". This will help sometimes. Unfortunately in v002 the only real alternative is to up the mesh resolution.

I have implemented a better solution, which subdivides the mesh as necessary to get a good approximation. My plan is to have this happen automatically during "idle time", so you shouldn't need to manually tweak the mesh resolution very often. Maybe I'll post a few screenshots on the devblog...

Keith

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Re: Surface Resolution!
« Reply #2 on: August 10, 2007, 12:11:33 PM »
Oooh!  :D
Thank you RMS!


... wait, there is a devblog?  ???
Bah!, where are my scissors and glue?

RMS

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Re: Surface Resolution!
« Reply #3 on: August 10, 2007, 04:08:54 PM »

Keith

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Re: Surface Resolution!
« Reply #4 on: August 13, 2007, 11:41:50 AM »
http://www.shapeshop3d.com/devblog.html

 :D LOL!

"The devblog moved here. Update your bookmarks." ;)

The "Sketchy Renderer Tech Demo" example image is also saying:
"Sorry, no attachments matched your criteria".  ???

... and it looked so cool!
Bah!, where are my scissors and glue?

RMS

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Re: Surface Resolution!
« Reply #5 on: August 18, 2007, 08:20:37 PM »
Yea, I installed WordPress the next day, so the address had to change. And I guess there is a bug in WordPress where you can't link an attached thumbnail image to another site. I added a text link...