Complex UV Layout in Maya
Over the last couple of years UV layout in Maya has changed for the better. In this course we're going to be taking a look at some of those changes as we UV map an entire character
# 1 04-11-2013 , 09:17 PM
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Grass Error

Hi All, I've been working my way through the Realistic Outdoor Environments tutorial and had reached part ten without a problem. I've just created a rough hill terrain and done some renders of my grass. Then I shut down for the night. When I next open up my scene and go to play my particle simulation it generates particles without their instanced grass shapes and gives me an error message '//Error: An execution error occurred in the creation expression for particleShape1.'

Attached are some pics and also my scene file if anyone wants to have a look and see if they can work out what's gone wrong.

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File Type: zip GrassSceneFile.zip (40.9 KB, 387 views)

Cheers, the Yeti.
# 2 05-11-2013 , 08:56 AM
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Grass is starting to look pretty good there user added image

Most likely cause is you forgot to turn on nearest point on mesh plugin.

David


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# 3 07-11-2013 , 10:25 PM
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Hi David, That's exactly what my problem was! It must have turned itself off overnight cause it was going fine the first day. Thanks for helping me out.

I also noticed that the grass textures are out in the render I posted so I must have forgotten to re-uv them.


Cheers, the Yeti.
# 4 11-11-2013 , 12:25 AM
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Ok, another problem. I'm working at creating the first bush and I'm connecting up the reverse node and luminance node to remove the black background (part14 19:53) but when I go to connect the luminance node to the leaf material by linking the outvalue to the cutout_opacity I get a message telling me that Maya has unexpectedly stopped working and needs to close. I've tried three times and I can't get past this problem.

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Cheers, the Yeti.
# 5 11-11-2013 , 12:33 AM
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Hang on, it seems that I accidentally deleted my physical sun and sky (during one of the crashes probably) and after recreating that it let me link the nodes that I wanted.


Cheers, the Yeti.
# 6 11-11-2013 , 12:48 AM
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No good, no sooner have I said that that Maya brings up the same message and crashes now it crashes as soon as I open the file! So I have effectively locked myself out of my fileuser added image

Below is a pic of the script editor which has two errors. I'm not sure if they are what's causing the problem.

Also I've attached my scene if someone wants to see if they can get into it.

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File Type: zip TyBushError.zip (11.7 KB, 349 views)

Cheers, the Yeti.
# 7 11-11-2013 , 12:55 AM
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Hmm i hate to say this but have you tried a restart ? The file opens just fine for me and the two warnings are certainly nothing to worry about. I've saved the file out for you try opening this one.

Let me know if you can open this one ok.
David


From a readers' Q and A column in TV GUIDE: "If we get involved in a nuclear war, would the electromagnetic pulses from exploding bombs damage my videotapes?"
# 8 11-11-2013 , 01:00 AM
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forgot to attach the file

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File Type: zip new_bush.zip (13.9 KB, 365 views)

From a readers' Q and A column in TV GUIDE: "If we get involved in a nuclear war, would the electromagnetic pulses from exploding bombs damage my videotapes?"
# 9 11-11-2013 , 01:39 AM
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Yes I have tried a restart but that didn't do any good. I can open the new_bush file but as soon as I try to take a render of it, Maya quits.

I'm assuming you can render my file on your machine?


Cheers, the Yeti.

Last edited by MrYeti; 11-11-2013 at 01:44 AM.
# 10 11-11-2013 , 10:50 PM
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Still not having any luck with sorting out my issue so I've moved on to the second bush. Just wondering if can get my hands on the textures that are used (leaf_back_yellow_4x4.tif, leaf_bump_yellow_4x4.tif and leaf_front_yellow_4x4.tif) as they didn't come with the download. I like to use the tutors files first before I go and start creating my own.


Cheers, the Yeti.
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