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Iray Canvas Tutorial

By SnowSultan
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124 Comments
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Beginner's tutorial for using the Canvases feature in DAZ Studio's Iray renderer. I tried to make this as simple and straightforward as I could - hopefully it makes sense!

Thanks for taking a look!
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© 2015 - 2020 SnowSultan
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anonymous's avatar
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LittleDragonKid's avatar
LittleDragonKidProfessional Digital Artist
Just tested again and it will not work...
With Alpha On, my hair+Backdrop image gets invisible, with Alpha off, my hair is there, but the background is just black... but I did set a image in the environment.

The Backdrop image is btw. not selectable in the Nodelist in Step 5/6.

SnowSultan's avatar
SnowSultanHobbyist Digital Artist
Background images do not render separately in canvases, that is normal.
LittleDragonKid's avatar
LittleDragonKidProfessional Digital Artist
but... how then do I use my background image if it isnt loaded in the render? ;)
SnowSultan's avatar
SnowSultanHobbyist Digital Artist

Can you place it in the transparent background using GIMP or Photoshop? That's much better if you can because you can resize it or edit it if necessary, which you can't do that well if it's actually part of the render.

LittleDragonKid's avatar
LittleDragonKidProfessional Digital Artist
yeah, but when I postedit it, i dont see it in the studio, where the stuff would be.
SnowSultan's avatar
SnowSultanHobbyist Digital Artist

I don't mean to sound frustrated, but I wrote this tutorial 5 years ago and can barely remember what I ate for breakfast this morning. :) If I didn't cover it here, I probably don't know the answer. Again, I would suggest that you post in the DAZ Commons and see if someone who works with canvases more often than I do might be able to help.

LittleDragonKid's avatar
LittleDragonKidProfessional Digital Artist
its okay, anyway thanks for your try :D
I just do my shadow editing in gimp :)
But I just ordered a new PC, so I dont will use much JPG's backdrops anymore and dont need such tricks anymore^^.
LittleDragonKid's avatar
LittleDragonKidProfessional Digital Artist
Hi!
I tested it and... nope :8 also should it work in active Iray so i can see the effect without rendering it?
i wanted to show the spoon on the table, because its a backdrop the spoon will make no shadow, so I placed the pane there, if I use the SPotRender my render will be empty...

Made I something wrong?
SnowSultan's avatar
SnowSultanHobbyist Digital Artist

Hi, thanks for writing. No, canvases must be rendered to show those sorts of shadows, it will not appear in a normal Iray render or in Iray preview mode.


If you still have problems, let me know.

LittleDragonKid's avatar
LittleDragonKidProfessional Digital Artist
but you said it appears in the Spot render and... for me it did not appear :(
SnowSultan's avatar
SnowSultanHobbyist Digital Artist
Did you set it to New Window? It's possible things have changed since I made this tutorial. I'll try to test it soon.
LittleDragonKid's avatar
LittleDragonKidProfessional Digital Artist
I always set to new window, the other one is stupid, also you can not cancel the other... which I hate... and I hate that I can not set it default to new window *sigh*
SnowSultan's avatar
SnowSultanHobbyist Digital Artist

Alright, I'll try to test this tomorrow. Studio updates fairly often, so it's possible that you can no longer do this in a spot render.

LittleDragonKid's avatar
LittleDragonKidProfessional Digital Artist
oh... well rendering a full scene takes much longer....
SnowSultan's avatar
SnowSultanHobbyist Digital Artist

It still works for me. I put a plane and a sphere in a scene, attached each one to a node, chose a Beauty canvas type and rendered to a new window with the Spot Renderer. The problem likely has something to do with what objects you have attached to which nodes. Make sure to check which node is selected as well (under the Alpha checkbox).

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BlindOwlProductions's avatar
BlindOwlProductionsHobbyist Digital Artist
Super useful to know. Thanks!
SnowSultan's avatar
SnowSultanHobbyist Digital Artist
Glad it could be useful!
plmad666's avatar
Very nice tutorial. All my doubts was cleared. Thanks.
SnowSultan's avatar
SnowSultanHobbyist Digital Artist
Glad it helped, thanks.  :)
honormacdonald's avatar
honormacdonaldProfessional Digital Artist
Great googley moogley... The possibilities. Thank you!
SnowSultan's avatar
SnowSultanHobbyist Digital Artist
It hasn't proven to be as useful as I thought because I can't get the renders to go on long enough to stop being grainy, but the possibilities are definitely there. Thanks for taking a look!
DesertLion3D's avatar
DesertLion3DHobbyist Digital Artist
Thank you for this tutorial.  For me, it will be useful to isolate/render figures from scenes so that I can add motion blur and photoshop them together into a final image.
SnowSultan's avatar
SnowSultanHobbyist Digital Artist
Sounds good, I hope it can help!
RAMWolff's avatar
RAMWolffHobbyist Digital Artist
Thanks Snow.  Good one!  
anonymous's avatar
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