Forums PDG/TOPs Outputting progress

Outputting progress

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dhemberg
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Joined: 11月 2015
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Hi there;

I have a TOP graph that uses a ROP Fetch to render a sequence of images. I'd like to cobble together a Python script that periodically outputs progress as the images are rendered. Currently the render runs in-process on my local machine; after the ROP fetch, I have a Python script node that just does something like:


import hou
current_frame = hou.frame()
print(" Frame", current_frame, "complete.")

This sort of works; I get an output message once each frame renders, except the output is always:

"Frame 1.0 complete."

I'm curious what I could use other than hou.frame() to correctly output the frame that is/was rendered?
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tpetrick
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Joined: 5月 2014
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If this is a Python Script TOP, you an use work_item.frame to access the frame value associated with the work item, which will be set to the same frame as the parent work item that's doing the render.
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dhemberg
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Joined: 11月 2015
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Thank you so much! This works splendidly.

A slightly-related question: I notice when my render TOP (which is a ROP Fetch of a USD render LOP) executes, it seems to cook the resulting work items in a wonky 'diagonal' pattern, rather than sequentially. I can't recall this always being the case for me, so I'm not sure if this is default behavior or if I've inadvertently twiddled a setting somewhere to cause this.

Is the execution order for ROP fetches controllable? This isn't a huge deal, but it does make playback of in-progress animation sequences a bit weird, so I'm curious if I can state that I'd like the tasks to run sequentially (which is to say: in ascending-by-frame-number order). 

[BEAUTIFUL SHELVES] Rendering animation...
[BEAUTIFUL SHELVES]   Frame range: 1 - 52
[BEAUTIFUL SHELVES]   Frame 1 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 2 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 6 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 7 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 13 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 14 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 19 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 20 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 21 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 26 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 27 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 32 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 33 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 39 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 40 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 3 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 4 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 5 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 8 of 52 complete.
[BEAUTIFUL SHELVES]   Frame 9 of 52 complete.
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