Loading...
> >

Looking for information on canvases

mathiaskristofferssonmathiaskristoffersson Posts: 32
in The Commons

I've just learnt about canvases and their uses for compositing lights in post. Is there any description regarding the other types you can chose. I see stuff like depth and other things that sounds really interesting but I have no idea on how to use them or what they capture.

 

Comments

  • LinwellyLinwelly Posts: 6,067

    here are some links to threads about canvases, unfortunately I nothing about that myself, hope that helps

    http://www.daz3d.com/forums/discussion/73745/canvases-and-post-processing
    http://www.daz3d.com/forums/discussion/62832/quick-question-about-iray-canvases
    http://www.daz3d.com/forums/discussion/100381/sizing-render-canvas
    http://www.daz3d.com/forums/discussion/58779/iray-canvases-light-path-expressions-and-z-buffer
    http://www.daz3d.com/forums/discussion/62101/relighting-with-iray-canvases/p1

  • mathiaskristofferssonmathiaskristoffersson Posts: 32

    Seems I was too fast asking the question, should have tried searching the forums first. I guess I was asking for some kind of official description but I'll read the threads.

  • Oso3DOso3D Posts: 15,095

    Well, give yourself credit; searching forums is usually fruitless.

     

  • KnittingmommyKnittingmommy Posts: 8,191
    mathiaskristoffersson said:

    Seems I was too fast asking the question, should have tried searching the forums first. I guess I was asking for some kind of official description but I'll read the threads.

    Here's the link to the official documentation if you want it, but it's pretty bare, mostly just headers and presumeably someone was going to update to fill things in later, but didn't.  You'll more information in the provided links in previous posts plus more info here which is a smaller part of a larger tutorial by TabascoJack.

    What I'd really be curious in finding if anyone knows of any are tutorials that tell you how to use the .exr files in GIMP once you have them.  I've done a little bit of postwork with layers and stuff, but I'm not really sure how to use the .exr files once I have them inside GIMP as layers.  What do I do with them?

  • LinwellyLinwelly Posts: 6,067
    Knittingmommy said:

    Here's the link to the official documentation if you want it, but it's pretty bare, mostly just headers and presumeably someone was going to update to fill things in later, but didn't.  You'll more information in the provided links in previous posts plus more info here which is a smaller part of a larger tutorial by TabascoJack.

    Ah that is the one I was looking for, I knew one of you guys had something done on the matter but couldn't find it anymore.

  • TheKDTheKD Posts: 2,711

    Personally, I gave up on canvases, and just do render passes. Build the whole scene, then cut it up into at least foreground, midground and backround. Then put them together in photoshop. Last render I did was 6 passes, but it was a large widescreen landscape type deal.

  • KnittingmommyKnittingmommy Posts: 8,191

    So, what's the difference between having Iray do canvases and doing render passes?  What are render passes and how do you do them?

  • KnittingmommyKnittingmommy Posts: 8,191

    So, what's the difference between having Iray do canvases and doing render passes?  What are render passes and how do you do them?

    Linwelly said:
    Knittingmommy said:

    Here's the link to the official documentation if you want it, but it's pretty bare, mostly just headers and presumeably someone was going to update to fill things in later, but didn't.  You'll more information in the provided links in previous posts plus more info here which is a smaller part of a larger tutorial by TabascoJack.

    Ah that is the one I was looking for, I knew one of you guys had something done on the matter but couldn't find it anymore.

    Yeah, it was TJ.  A little beyond me yet, but I'm trying to learn!

  • TheKDTheKD Posts: 2,711
    edited August 2016

    For me, I make the whole scene how I want it, with camera set and locked and save. Then I will delete everything but the backround stuff and have show dome on in that render. Then reload the oringinal and turn show dome off, delete the foreground and backround stuff and render. Turning show dome off helps with alpha maps, as I render to PNG. Then I reload the whole scene and delete everything but forground elements, and turn off show dome again and render. Usually the only thing present in all renders will be the ground, to help line things up easy.

    Keeping them seperated just helps in post really. So I can say run a levels on and darken the whole foreground easily without worrying about messing up the foreground. Or add fog easily that only effect the far backround.   

    Post edited by TheKD on
  • KnittingmommyKnittingmommy Posts: 8,191

    Cool.  I'll have to add it to my ever growing list of things to try!

Sign In or Register to comment.