Beer glass scene creation
This course contains a little bit of everything with modeling, UVing, texturing and dynamics in Maya, as well as compositing multilayered EXR's in Photoshop.
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16
04-09-2012
, 07:43 AM
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Posts: 2,998
My professional background is nurbs based hard surface modeling and in maya the nurbs tools are so unstable that they are practically unusable. You can get them to work you just have to learn and remember a host of special conditions and constraints that are specific to maya nurbs and no other nurbs package on earth. That is why most modelers consign maya nurbs to just making basic shapes and then converting to polys and pushing and pulling verts. It's a shame really because nurbs are really powerful and it's almost a crime that marketing people simply seem to have had both nurbs and subd's just cobbled into maya so they could check a box on a product comparison chart lol.
You can still get a lot done with maya nurbs though. Subd's on the other hand I have not really found any really stable use for them simply because if you are ever forced to go back to polygons you lose ALL you subd edits and this is bad if working independently but if you are working collaboratively this would be a complete disaster! Imagine someone three steps up the pipeline converting back to poly and all the subd edits go away! lol
With nurbs you can create extremely accurate and complex compound surface shapes and can cut any shaped holes into surfaces and add precise fillets and rounds. With the power of some of the current retopologizing applications like 3dcoat, you can then convert the nurbs patches to a dense polymesh and import them and then retopo to create a new clean poly mesh with proper topology (unless you are a uber modeler like Jay and can create a polymesh of infinite complexity in one shot without the need to retopo). haha
"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675
Last edited by ctbram; 04-09-2012 at 07:58 AM.
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17
04-09-2012
, 09:02 AM
The thin red line
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18
07-09-2014
, 10:06 AM
Registered User
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Posts: 21
It looks like I'm having the same issues with my model as Wader. When I try to convert poly to subdiv I get the following message from the Script Editor: "deleteInternalValence2Verts |L_zabac|L_zabac;
polyToSubdiv -ap 0 -ch off -aut on -maxPolyCount 2000 -maxEdgesPerVert 32 |L_zabac|L_zabac;
// Warning: Nothing is selected. Select objects or components to delete. //
// Error: Command polyToSubdiv failed. Open Script Editor for details. // ".
I think I have internal vertex or vertices. Then I selected my mesh, press F9 and opened Select Using Constraints. In the options for Constrain I selected All and Next and in the Neighbors I selected Activate and set Min and Max to 2, but I can't see internal vertices. I didn't have this problem until I added few faces on my mesh. Before that, poly to subdiv conversion went well. So I'm puzzled
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19
07-09-2014
, 02:31 PM
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By the way using selection constraint as you describe should have also worked but selection consttaint can sometimes be confusing... Do EXACTLY this....
1. Deselect EVERYTHING
2. Select>Select using constraints
3. reset>disable all
4. then
select the current and next radio button
twirl down Geometry>Neighbors
set min and max to 2
check activate
5. choose select verts and drag a selection box around the entire model
It should only select verts with valence of exactly 2
Alternatively, you can select all the verts in the model first and then start at step 2
Maya will remember these settings so remember to reset>disable all or just click the nothing radio button when you are done. even after resetting maya will remember the min max values you entered. The select by constraint tool was one of the most confusing tools in Maya for me when I was learning. I still have to fiddle with it and read the manual page half the time when I try to use it.
"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675
Last edited by ctbram; 07-09-2014 at 04:52 PM.
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20
07-09-2014
, 04:57 PM
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yes it means look directly above that and see what it says. The most common reason for this message when converting to sub-d is that in the convert options your max poly limit is too low and needs to be set higher.Yes the script editor told me to view the script editor...... I like the yellow light in the car analogy it made me laugh!
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21
07-09-2014
, 06:38 PM
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Jsprog is most likely correct in that you need to increase the poly limit for the poly to subd tool which form the command line is currently at 2000 which is pretty small. As I recall the default used to be 3000 and that used to fail a lot for me.
This would also explain why select by constraint was not finding any valence 2 verts.
"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675
Last edited by ctbram; 07-09-2014 at 08:22 PM.
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22
07-09-2014
, 08:03 PM
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: Thank you both for helping me out 
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23
28-09-2014
, 04:15 PM
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