Why Does DAZ Suddenly stop spot rendering?

DrowElfMorwenDrowElfMorwen Posts: 538
edited December 1969 in Daz Studio Discussion

This absolutely drives me crazy!! I'll render a scene just fine, but when I go to spot render, even though I've been doing it all day, it just suddenly decides to not do it.
And I cannot figure it out because I even closed the scene, closed the program, opened it all again and it STILL doesn't work. Basically the Rendering Image box comes up, loads, and the render window opens (I'm rendering in a new window, because I need it large). But it won't render! The timer goes up and up but NOTHING is happening. What is this bug and am I the only one experiencing it? I know I've had this problem many many times and I can't finish my picture without it.

Comments

  • BeeMKayBeeMKay Posts: 7,019
    edited December 1969

    Well...
    For one, it would strongly depend on what's in your scene. If a window pops up, you are doing a proper render... spot render would be marking something in the viewport with the camera preview tool, and that will be rendered, and also the size of that image you render.
    Anyway, if you have things like HD content, or deep shadow maps for shadows, it will take a while before the actual render starts. Also, some shader and light settings need "silent" calculation time.
    You can see if your PC is still working by checking the CPU usage in the task manager. If it's stuck,. it usually goes down to close to zero. If it's around 60-70, or even 100, it's still rendering, and need a few more seconds or minutes.

  • CypherFOXCypherFOX Posts: 3,401
    edited December 1969

    Greetings,
    You say 'the timer goes up', but does the progress bar?

    -- Morgan

  • DrowElfMorwenDrowElfMorwen Posts: 538
    edited December 1969

    Quick screencap. The progress bar doesn't move at all. But if I cancel it, it acts like I canceled an actual render. And suddenly the bar jumps to, say, 5% done, even though it's not showing ANYTHING. Also, this tiny tiny piece I'm trying to spot render shouldn't even take 2 minutes! But I let the render go on for 5...

    And no, it doesn't matter if I give it an hour or whatever amount of time, nothing happens!!! This is completely frustrating because it works in all my other files, just not this one (as far as I can remember).

    error.jpg
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  • mjc1016mjc1016 Posts: 15,001
    edited December 1969

    Quick screencap. The progress bar doesn't move at all. But if I cancel it, it acts like I canceled an actual render. And suddenly the bar jumps to, say, 5% done, even though it's not showing ANYTHING. Also, this tiny tiny piece I'm trying to spot render shouldn't even take 2 minutes! But I let the render go on for 5...

    And no, it doesn't matter if I give it an hour or whatever amount of time, nothing happens!!! This is completely frustrating because it works in all my other files, just not this one (as far as I can remember).

    Does it go through the Optimizing Images every time you try to render? Compiling Shaders?

    I've never seen the Spot Render open a new window...

  • barbultbarbult Posts: 24,755
    edited December 1969

    Spot render can be configured to render in a new window by selecting it in the Tool Settings pane.

    Spot_render_to_new_window.PNG
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  • mjc1016mjc1016 Posts: 15,001
    edited December 1969

    barbult said:
    Spot render can be configured to render in a new window by selecting it in the Tool Settings pane.

    That's kind of odd...somewhat defeats the purpose of it being a quick spot check on what you are doing.

    Another oddity about it, was that it took nearly 2x as long to render. That's after popping open a full size render window.

  • barbultbarbult Posts: 24,755
    edited December 1969

    mjc1016 said:
    barbult said:
    Spot render can be configured to render in a new window by selecting it in the Tool Settings pane.

    That's kind of odd...somewhat defeats the purpose of it being a quick spot check on what you are doing.

    Another oddity about it, was that it took nearly 2x as long to render. That's after popping open a full size render window.The advantage is that you can correct something and rerender only that spot, at exactly the size and position of your original full render. It makes it easy to patch the bad spot with an image editor.

  • CypherFOXCypherFOX Posts: 3,401
    edited December 1969

    Greetings,
    This is part of my 3Delight workflow *constantly*. I can usually re-render a tiny piece of the image VASTLY faster than re-rendering the whole thing. If I have poke-through on fingers, or a hand at a weird angle, I can usually fix it with one or two quick spot-renders. I also have one render where I put the character in pants, shorts, shorter shorts, and underwear, all just changing it out and using spot render to do it. So I have a file with different layers for each different amount of clothing, and depending on which layers I hide, the character is dressed differently.

    I've not used Iray for spot renders, though... The progressive nature of it makes me wonder how I could get it to match the rest of the scene... How DOES convergence work with just a piece of a scene, for instance...? If it didn't render the same number of iterations, converging faster because it's smaller(?), then it'd be very visible that it's an edited area...

    -- Morgan

  • barbultbarbult Posts: 24,755
    edited December 1969

    I did an Iray spot render a few beta versions ago, and it did converge to a finer degree than my total render. I didn't make any effort to control the convergence percent or number of iterations, though. You asked a very good question!

  • DrowElfMorwenDrowElfMorwen Posts: 538
    edited December 1969

    I never did get a solution to my problem... ~_~

    But now I am fiddling with IRAY, and I think I found out too the converging is faster. I think I've decided to give up on spot rendering for iray because it wouldn't work >.> Well, I suppose it can if you eyeball it.

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