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Eric Arnebäck @erkaman2
, 12 tweets, 4 min read Read on Twitter
alright, below I'm gonna list some professors/researchers in Computer Graphics whose research and papers I absolutely love.

you folks are also very much welcome to post your own suggestions below!
Morgan McGuire(@CasualEffects)

Virtual Reality, Real-time Rendering, Transparency, Anti-aliasing
Shadows, Ambient Occlusion
casual-effects.com/#research
Keenan Crane(@keenanisalive)

Geometry Processing, Differential Geometry, Computational Design
cs.cmu.edu/~kmcrane/
Olga Sorkine-Hornung

Geometry Processing, Differential Geometry,Geometric Modelling,
igl.ethz.ch/people/sorkine/
Ulf Assarsson

Compression, Shadows, Many-light Rendering,GPGPU,
Volumetric Shadows, Hair rendering, global illumination
cse.chalmers.se/~uffe/
Alec Jacobson(@_AlecJacobson)

Geometry Processing,
cs.toronto.edu/~jacobson/
Wenzel Jakob

Physically based Materials, light transport,
rgl.epfl.ch/people/wjakob
Peter-Pike Sloan(@PeterPikeSloan)

Spherical harmonics, real-time indirect illumination
ppsloan.org/publications/
Hugues Hoppe

geometry processing, surface reconstruction, mesh lod, terrain rendering, etc
hhoppe.com
Eric Heitz(@eric_heitz)

physically based rendering, physically based area lights, physically based materials
eheitzresearch.wordpress.com
Laurent Belcour(@_Laurent)

physically based rendering, light transport.
belcour.github.io/blog/
alright, from the top of my head, that's what I could come up. as can be observed, my interests are very biased towards real-time rendering and geometry processing. :P
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someone asked me a good question, so I will write down the reply as a twitter thread below :D
Question is something like: "Where do the BRDF formulas come from? How can we make our own?"
Answer:
I will mostly explain specular BRDFs, since they are most used.
the most common way of making them, is by approximating the material
surface as a bunch of small mirrors called microfacets.
for very rough materials, these microfacets will have normals pointing
in all kinds of directions(left image). For smooth materials, there is less normal variation(right image),
and very smooth materials will closely resemble a flat mirror surface.
Read 26 tweets
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Alright! below im gonna post my collection of links related to
occlusion culling. if I missed good links, you folks are welcome to
post them below.
"Practical, Dynamic Visibility for Games"
blog.selfshadow.com/publications/p…
occlusion culling by creating hiz-buffer from occluders.
also uses it for shadow caster culling. they find AABB of
objects for culling against hiz-buffer
"Secrets of CryENGINE 3 Graphics Technology"
slideshare.net/TiagoAlexSousa…
occlusion culling by reprojecting depth of previous frame, downscale with max operator.
to cull objects, rasterize bounding boxes of objects, and cull them
against downsaled depth buffer.
Read 16 tweets
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Alright! Below Im gonna post some good links, for people who are interested in volume rendering!
webdocs.cs.ualberta.ca/~pierreb/Visua…
Old course notes. In particular, see section 1.2.2, which explains the
important volume rendering integral.
patapom.com/topics/Revisio…
Course notes from @Patapom2 , with explanations on participating mediums,
scattering, phase functions, and ray marching
Read 16 tweets

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