[Plugin] ShadowProjector
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OK, consistent splat on this one. I can run Shadowprojector on the two at right for 12/21 09:00 and it works, but either of the left ones, which shouldn't have any shade anyway, will splat.
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Of course it shouldn't splat !
But if a face is not receiving any shadows why include it in the process ?If I process a face in shadow it works, a face in shadow and one NOT works but the un-shaded face gives an error in the Ruby Console [which of course it shouldn't!] - some kind of transformation error...
If I try and process just the un-shaded face on its own I too get a splat.
Some something is clearly adrift...
I'm investigating...
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@tig said:
But if a face is not receiving any shadows why include it in the process ?
Normally I wouldn't in a model this simple, but in something more complex, I tend to just select all the faces of interest on each run. Those faces would be shaded for the 16:00 run, so in a complex model I wouldn't be picking each one individually. I was only checking them one at a time this time because I wanted to narrow the problem down as much as possible to see if there was something goofy with my model first.
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it's working on my mac...
john
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I've worked out the issue.
It IS to do with empty groups - there's an intersection needed but if there is nothing to intersect it was splatting...
With a % text it's NOT empty so no issues !
Now I have it trapped and so far in retesting there's not splatting.
I'm preparing an update.
I'll also get it signed for v2016 full compatibility... -
Here's v5.0 http://sketchucation.com/pluginstore?pln=TIG_shadowProjector Main changes:
- Unshaded face splat trapped.
- Text better placed.
- Signed for v2016 full compatibility.
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@tig said:
I've worked out the issue.
It IS to do with empty groups - there's an intersection needed but if there is nothing to intersect it was splatting...
With a % text it's NOT empty so no issues !
Now I have it trapped and so far in retesting there's not splatting.That makes perfect sense now; even on the full model, it didn't splat on the first run, but after I'd exploded the shadow lines and marked the shaded areas, the remaining area was split into multiple faces, and apparently some of those were empty.
5.0 is working perfectly on a couple of the smaller sections. I'm tempted to test it on the full model when I have some free time.
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MUCHAS GRACIAS.....
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Hello Friend.
You made a very good plugin. But I have problems in using it. I get artifacts with a shadow. Can you help me with this problem?
I installed this plugin in 2017 -
@newvector said:
Hello Friend.
You made a very good plugin. But I have problems in using it. I get artifacts with a shadow. Can you help me with this problem?
I installed this plugin in 2017
Please explain these 'artifacts' more fully.
Use a screen-shot or even a small SKP example... -
Hi
I regret the inconvenience. That's my fault. I reduced the value of the variable 've.length' too much. This led to the appearance of artifacts. Now everything is fine, I changed this value to 0.00001.mm
The value chosen by you 0.25mm is not very good, it generates additional points when the scene is exporting. -
This tool is incredibly useful... thank you very much TIG!
Do you plan to update it? I'm using it in Sketchup 2018, and it's very slow, even though the geometry is simple.
Neither it is able to create the percentages.Best regards!!!
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i just want to leave my thanks
this helped me to get the sketch-up shadow over into autocad
still needed a bit trickery but still a step closer to getting all these programs closer together
keep on tig! -
Great plugin for shadow analysis!
If I may suggest a few improvements:
- ability to project shadows on grouped faces, so if you select a group with faces, shadows are also projected there and you don't have to explode groups,
- applying the projecton wouldn't reset the selection,
- make an automatic text tablel (outside the shadow face) only informing at what time of day a projection was taken.
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I also noticed that the instance ID of a projected shadow-face shows wrong hour (the difference is always 2 hours). As in example below: I projected a shadow at 17:00 and it says 19:00.
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Thanks for the report on the time-stamp error.
There was also an error with the % formatting in the newer SketchUps.
Here's v6.0 https://sketchucation.com/pluginstore?pln=TIG_shadowProjectorI've fixed the issue with those incorrect UTC time-stamps, and the error with sprintf %. It's also been re-signed.Apparently the incorrect time-stamp from the UTC AND ignored DaylightSavings when reported by SketchUp's ShadowInfo have been known for some time. But I've only just learnt of the workaround when extracting the time from the data, which I think now fixes it...
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Wow, you did this faster than I could think
Thanks, it's fixed!
Are you perhaps going to further develop this plugin? Implementing these three points would be so cool! -
Here's v7.0 https://sketchucation.com/pluginstore?pln=TIG_shadowProjector The original Selection is now kept on completion.
The Time & Date [...@hh:mm-mo-dd] is now added to the Shadow group's name for clarity - so it's easier to find and select in the Outliner.
It has been re-signed. -
Thank you!
Would it make a lot of work to also code projecting shadows onto grouped faces when a group is selected? -
Yes, it is much much more difficult - since the group's transformation must be accounted for when deciding the 'hits' etc.
I have already looked at it briefly, but I've decided to do nothing in the immediate future, since I have other more urgent fish-to-fry...
A workaround that avoids exploding a group, is [after processing any faces within the model's context] to edit that group, and then select any faces within it to process.
Any objects outside of the group [in the model's context] should still cast shadows on the face[s], making the Shadow@... group[s] as normal.
You can then Select any Shadow@... groups inside the group's edit [use the Outline if needed] and then use Edit>Cut; immediately exit the group-edit, and use Edit>PasteInPlace to relocate the Shadow@... group[s] into the main model's context onto the surface of the group...
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