Posts

Multiple-Scattering Microfacet BSDFs with the Smith Model

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Eric Heitz and his colleagues published one hell of a paper on rendering microfacet materials. It has lots of beautifully written mathematics, and is really well illustrated, evaluated, and the full source code is also published. Now it comes with a narrated supplementary video. The paper is available here (or click the image below), check it out!

Status: accepted to ACM SIGGRAPH 2016

(please note that I am in the acknowledgements section and was not a co-author of the paper, I just helped with the video. Happy to have been a very small part of this!)

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Ray Tracing / Subsurface Scattering @ Function 2015

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The seminar on ray tracing, global illumination and subsurface scattering from Function 2015 is now available!

Two Minute Papers – Manipulating Photorealistic Renderings

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Photorealistic rendering (also called global illumination) enables us to see how digital objects would look like in real life. It is an amazingly powerful tool in the hands of a professional artist, who can create breathtaking images or animations with. However, for the longest time, artists didn’t use it in the movie industry because it did not offer a great artistic freedom – after all, it works according to the laws of physics, which are exact. This piece of work enables us to apply artistic edits to photorealistic renderings easily and intuitively. I believe this one has the potential to single-handedly change the landscape of photorealistic rendering on a production scale.

Rendering course lectures going online

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The Rendering course lectures are going online this year!

If you’d like to see updates from the channel, you can subscribe to it.

Transient Rendering and Femto-Photography

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There are some really cool advancements in light transport research: first, a technique that enables us to capture the propagation of light as an electromagnetic wave as it illuminates our world. There is a never-before-seen example I am really fond of: strictly speaking, if you stand in front of a mirror, there is a moment while you’re already standing there, but your image in the mirror is not visible yet. This phenomenon exists due to the finite propagation speed of electromagnetic waves and only lasts for a few nanoseconds, and is now caught on tape (around the one minute mark). I never thought this would be possible in my lifetime! Recently, Adrián Jarabo and colleagues built a rendering algorithm that replicates this behavior. It takes quite a bit to get my jaw dropped with novel research works, and it never ceases to amaze me that it still happens all the time.

Automated Lighting Design For Photorealistic Rendering

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Silvana Podaras, my Bachelor student had her paper accepted to CESCG 2014! It is implemented as a LuxRender module and is available here. Be sure to read the attached readme. Congratulations! 🙂

We’re continuing this work, so if you decided to pick this up and improve it in any way, let us know!

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