CGI tech news box

General project and community related discussions and offtopic threads.
patrickawalz
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Swallowing the elephant...

Post by patrickawalz » Fri Jun 22, 2018 8:37 pm

matt pharr, of pbrt fame, recently did a series of blog posts on getting a scene from moana to run and render over pbrt3. while this isn't as much cgi news, it would be neat to convert a production ready scene to luxcore and see if we can render it.
the scene is somewhere between 50-70gb when loaded into memory. I'm sure it will be different for us with a different system, but a hefty scene would be a nice stress test on the CPU part of the engine at least.

http://pharr.org/matt/blog/2018/07/16/m ... t-all.html
Last edited by patrickawalz on Tue Jul 31, 2018 1:27 pm, edited 1 time in total.

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Dade
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Re: CGI tech news box

Post by Dade » Thu Jun 28, 2018 9:03 am

Stratified Sampling of Projected Spherical Caps: http://www.iliyan.com/publications/Proj ... ericalCaps
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Dade
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Re: CGI tech news box

Post by Dade » Thu Jun 28, 2018 9:07 am

High-Performance Procedural Noise using an Histogram-Preserving Blending Operator: https://eheitzresearch.wordpress.com/722-2/ (this could be extremely useful for GPUs)
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B.Y.O.B.
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Re: CGI tech news box

Post by B.Y.O.B. » Thu Jun 28, 2018 5:02 pm

Dade wrote:
Thu Jun 28, 2018 9:07 am
High-Performance Procedural Noise using an Histogram-Preserving Blending Operator: https://eheitzresearch.wordpress.com/722-2/ (this could be extremely useful for GPUs)
Woah this is even better than I hoped for when I saw the "Noise" in the title!
Auto-tiling of image maps - very cool. And the triplanar blending at the end is also super useful.
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neo2068
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Re: CGI tech news box

Post by neo2068 » Fri Jun 29, 2018 7:51 pm

B.Y.O.B. wrote:
Thu Jun 28, 2018 5:02 pm
Dade wrote:
Thu Jun 28, 2018 9:07 am
High-Performance Procedural Noise using an Histogram-Preserving Blending Operator: https://eheitzresearch.wordpress.com/722-2/ (this could be extremely useful for GPUs)
Woah this is even better than I hoped for when I saw the "Noise" in the title!
Auto-tiling of image maps - very cool. And the triplanar blending at the end is also super useful.
+1
That one is very cool.
i7 5820K, 32 GB RAM, NVIDIA Geforce GTX 1080 + GTX 780, Windows 10 64bit, Blender 2.79b
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kintuX
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Re: CGI tech news box

Post by kintuX » Tue Jul 03, 2018 1:40 pm

Spectral Gradient Sampling for Path Tracing
Victor Petitjean, Pablo Bauszat, Elmar Eisemann
Computer Graphics Forum (Proceedings of EGSR) - 2018

Image

patrickawalz
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Re: CGI tech news box

Post by patrickawalz » Fri Aug 24, 2018 9:17 pm


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B.Y.O.B.
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Re: CGI tech news box

Post by B.Y.O.B. » Sat Aug 25, 2018 9:51 am

This is not really CGI news, but might be useful anyway:
double-conversion is a library that can convert strings to floating point and vice versa roughly twice as fast as strtof().
I found it mentioned here: https://pharr.org/matt/blog/2018/08/03/ ... -mail.html
I remember that we had problems with the standard C++ floating point parsing with PySide/pyinstaller on Linux - this library may be able to fix that, too.
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B.Y.O.B.
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Re: CGI tech news box

Post by B.Y.O.B. » Sat Aug 25, 2018 1:27 pm

Sorry if this is old news, it's from 2013:
Watertight Ray/Triangle Intersection
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patrickawalz
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Re: CGI tech news box

Post by patrickawalz » Sat Aug 25, 2018 3:36 pm

B.Y.O.B. wrote:
Sat Aug 25, 2018 1:27 pm
Sorry if this is old news, it's from 2013:
Watertight Ray/Triangle Intersection
pbrt-v3 actually uses this in its triangle mesh intersection code, if you wanted to take a look at some code already using this

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