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Iray Canvas Tutorial

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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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shedofjoy's avatar

Excellent, something to play with that i didn't know...

SnowSultan's avatar

Glad it could help!

bruntumber's avatar

Wonderful iRay canvas tutorial, thank you.

SnowSultan's avatar

Glad it could help!

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

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

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
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
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

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
but you said it appears in the Spot render and... for me it did not appear :(
SnowSultan's avatar
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
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

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
oh... well rendering a full scene takes much longer....
SnowSultan's avatar

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
Super useful to know. Thanks!
SnowSultan's avatar
Glad it could be useful!
plmad666's avatar
Very nice tutorial. All my doubts was cleared. Thanks.
SnowSultan's avatar
Glad it helped, thanks.  :)
honormacdonald's avatar
Great googley moogley... The possibilities. Thank you!
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