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Computational Hydrographic Printing [video]

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Re: Computational Hydrographic Printing [video]

#11
If anyone is interested in the other papers that are presented at SIGGRAPH 2015, Ke-Sen Huang usually has a complete list with links to preprints and videos. You can find the list for SIGGRAPH 2015 here:

http://kesen.realtimerendering.com/sig2015.html

My favorite paper this year is "The SGGX Microflake Distribution" by E. Heitz et al. Sadly there aren't many papers on rendering this year.

Re: Computational Hydrographic Printing [video]

#12
post #9

What kind of surface doesn't fit this computational model? The elephant one for example, how to map the region which is occluded by the elephant's nose to the PVA surface? Anyway, really nice work. Looking forward to reading the paper and learn more!

The failure modes listed in the paper are models with a lot of concavities or self-occlusions. Looking at the video, it looks like the elephant cup succeeds because of surface tension properties of the water, which let the surface on each side of the trunk "snap together" when the trunk begins to be completely immersed. It's that wrapping or stretching that lets it be more than a simple light projection, which would fail due to self-occlusion.

Re: Computational Hydrographic Printing [video]

#13
post #9

What kind of surface doesn't fit this computational model? The elephant one for example, how to map the region which is occluded by the elephant's nose to the PVA surface? Anyway, really nice work. Looking forward to reading the paper and learn more!

The failure modes listed in the paper are models with a lot of concavities or self-occlusions. Looking at the video, it looks like the elephant cup succeeds because of surface tension properties of the water, which let the surface on each side of the trunk "snap together" when the trunk begins to be completely immersed. It's that wrapping or stretching that lets it be more than a simple light projection, which would…

Thanks. I found this in the paper too. Like you said, high concavity and significant self-occlusion are two cases that are more likely to fail.

Re: Computational Hydrographic Printing [video]

#14

If anyone is interested in the other papers that are presented at SIGGRAPH 2015, Ke-Sen Huang usually has a complete list with links to preprints and videos. You can find the list for SIGGRAPH 2015 here: http://kesen.realtimerendering.com/sig2015.html My favorite paper this year is "The SGGX Microflake Distribution" by E. Heitz et al. Sadly there aren't many papers on rendering this year.

No technical paper preview trailer this year?

Re: Computational Hydrographic Printing [video]

#16

I was amazed until they got to the cat (about 3:00 in). At that point I was blown away. The inside surfaces of the "outside" legs were also accounted for in the mapping, and it was spot on. This is seriously cool.

Yes, it's pretty seamless on boundaries.

Re: Computational Hydrographic Printing [video]

#18
I love how this is a complementary technology to 3D printing by the way of a traditional printer. Simple. Effective. The biggest obstacle for widespread adoption might be software, in other words a robust toolkit for designing "wraps" of these imprints for your own 3D models.

Re: Computational Hydrographic Printing [video]

#19

I was amazed until they got to the cat (about 3:00 in). At that point I was blown away. The inside surfaces of the "outside" legs were also accounted for in the mapping, and it was spot on. This is seriously cool.

This is incredible but I'm assuming that the print and the objects are painstakingly aligned as the immersion rod has no lateral movement.
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