Index hero/code576
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Matt Mascarenhas
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[video member=cmuratori stream_platform=twitch stream_username=handmade_hero project=code title="Octahedral Encoding" vod_platform=youtube id=CUboglhuTDw annotator=Miblo]
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[0:04][Recap our generalised :"hot reloading" and set the stage for the day][:speech]
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[2:43][Set up to recompile shaders when reloading the renderer][:"hot reloading" :research]
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[4:33][Augment game_render_settings with Version, for WinMainCRTStartup() to increment and trigger shader recompilation][:"hot reloading"]
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[9:51][:Run the game]
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[10:09][Toggle off / on PushDebugBox() and watch it hot reload][:"hot reloading" :programming :run]
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[10:39][Make CompileZBiasProgram() hard set the SurfaceReflect.r to 1.0][:rendering]
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[11:15][See the shader recompilation take effect][:"hot reloading" :rendering]
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[11:22][Revert CompileZBiasProgram() to set the correct SurfaceReflect.r and see it hot reload][:"hot reloading" :programming :rendering :run]
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[12:14][Decide against flood filling the :lighting voxel][:performance :speech]
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[15:57][Spherical Harmonics[ref
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site="Research Gate"
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page="3-D shape of Spherical Harmonic basis functions"
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url=https://www.researchgate.net/profile/Kunihiro_Chihara/publication/224165074/figure/fig2/AS:302560503189516@1449147453437/3-D-shape-of-Spherical-Harmonic-basis-functions.png]][:lighting :research]
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[21:26][A few words on DuckDuckGo's[ref
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site=DuckDuckGo
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url=https://duckduckgo.com/] technical searches][:research]
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[22:14][:Research Spherical Harmonics truncation][:lighting]
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[25:59][Consult Peter-Pike Sloan's 'Efficient Spherical Harmonic Evaluation'[ref
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author="Peter-Pike Sloan"
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title="Efficient Spherical Harmonic Evaluation"
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publisher="NVIDIA Corporation"
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url=https://ppsloan.org/publications/SHJCGT.pdf]][:lighting :research]
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[31:43]["Reconstruction of a HDR light probe into order 1 to 6 Spherical Harmonics"[ref
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author="Peter-Pike Sloan"
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title="Efficient Spherical Harmonic Evaluation"
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publisher="NVIDIA Corporation"
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url=https://ppsloan.org/publications/SHJCGT.pdf]][:lighting :research]
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[35:55][Consult 'Dynamic Diffuse Global Illumination with Ray-Traced Irradiance Fields'[ref
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title="Dynamic Diffuse Global Illumination with Ray-Traced Irradiance Fields"
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author="Jean-Philippe Guertin, Derek Nowrouzezahrai, Morgan McGuire"
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url=http://jcgt.org/published/0008/02/01/]][:lighting :research]
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[41:50][Consult the Code and Video supplement of 'Dynamic Diffuse Global Illumination with Ray-Traced Irradiance Fields'[ref
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title="Dynamic Diffuse Global Illumination with Ray-Traced Irradiance Fields: Code and Video (589.8 MiB)"
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author="Jean-Philippe Guertin, Derek Nowrouzezahrai, Morgan McGuire"
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url=http://jcgt.org/published/0008/02/01/supplement.zip]][:lighting :research]
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[54:20][Consult 'Survey of Efficient Representations for Independent Unit Vectors'[ref
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title="Survey of Efficient Representations for Independent Unit Vectors"
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author="Zina H. Cigolle, Sam Donow, Daniel Evangelakos, Michael Mara, Morgan McGuire, Quirin Meyer"
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url=http://jcgt.org/published/0003/02/01/] with octahedral.glsl from the Code and Video supplement of 'Dynamic Diffuse Global Illumination with Ray-Traced Irradiance Fields'[ref
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title="Dynamic Diffuse Global Illumination with Ray-Traced Irradiance Fields: Code and Video (589.8 MiB)"
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author="Jean-Philippe Guertin, Derek Nowrouzezahrai, Morgan McGuire"
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url=http://jcgt.org/published/0008/02/01/supplement.zip]][:lighting :research]
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[1:06:47][Admire Octahedral Encoding[ref
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title="Dynamic Diffuse Global Illumination with Ray-Traced Irradiance Fields: Code and Video (589.8 MiB)"
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author="Jean-Philippe Guertin, Derek Nowrouzezahrai, Morgan McGuire"
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url=http://jcgt.org/published/0008/02/01/supplement.zip]][:lighting :research]
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[1:09:03][Consider the cage building part of Octahedral Encoding[ref
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title="Dynamic Diffuse Global Illumination with Ray-Traced Irradiance Fields"
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author="Jean-Philippe Guertin, Derek Nowrouzezahrai, Morgan McGuire"
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url=http://jcgt.org/published/0008/02/01/]][:lighting :research]
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[1:12:46][Consider edge-wrapping in Octahedral Encoding, using an atlas rather than a texture array[ref
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title="Dynamic Diffuse Global Illumination with Ray-Traced Irradiance Fields"
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author="Jean-Philippe Guertin, Derek Nowrouzezahrai, Morgan McGuire"
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url=http://jcgt.org/published/0008/02/01/]][:lighting :research]
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[1:16:06][Octahedral Encoding: Wrapped :Sampling][:blackboard :lighting]
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[1:19:55][@somebody_took_my_name][It is flipped][:lighting]
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[1:20:23][Octahedral Encoding: Edge Orientation][:blackboard :lighting]
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[1:22:55][:Research the wrapping modes of glTexParameter[ref
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site="docs.GL"
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page="glTexParameter"
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url=http://docs.gl/gl3/glTexParameter]]
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[1:24:31][:Research Cage :Sampling in Octahedral Encoding[ref
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title="Dynamic Diffuse Global Illumination with Ray-Traced Irradiance Fields"
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author="Jean-Philippe Guertin, Derek Nowrouzezahrai, Morgan McGuire"
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url=http://jcgt.org/published/0008/02/01/]][:lighting]
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[1:29:08][Q&A][:speech]
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[1:30:14][@grabix][Q: What is tomorrow?]
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[1:30:48][@euphius][Q: Are you preferring Chrome over Firefox? And if yes, what's the reason?]
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[1:31:13][@jakejscott][Question: You mentioned on Twitter you were building a Learn to Program course.[ref
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author="Casey Muratori"
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publisher="Twitter"
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title="BETA TESTERS WANTED: I am looking for some folks who want to learn C and low-level programming to test a new course I am working on. Please e-mail business@mollyrocket.com if you are interested."
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url=https://twitter.com/cmuratori/status/1218640096913543169] Can you tell us more about it?]
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[1:33:00][@tmellemseter][Q: How has the sparse :"entity system" been? Has there been any drastic modification to it?]
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[1:34:00][@reductum][Q: You can include the string "!g" in a DuckDuckGo[ref
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site=DuckDuckGo
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url=https://duckduckgo.com/] query to get google search results]
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[1:34:56][@filiadelski][Q: There are some Spherical Harmonics implementations on shadertoy.com[ref
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site=ShaderToy
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url=https://www.shadertoy.com/] you could look at. Don't know if something like this helps][:lighting]
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[1:35:51][@grabix][Q: So what is entity cache?][:"entity system"]
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[1:37:41][@filiadelski][Q: Basically cache tables?[ref
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site="The ryg blog"
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page="Cache tables"
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url=https://fgiesen.wordpress.com/2019/02/11/cache-tables/]]
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[1:38:55][Google[ref
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site=Google
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url=https://google.com/] vs DuckDuckGo[ref
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site=DuckDuckGo
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url=https://duckduckgo.com/]][:research]
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[1:43:52][Get some lunch][:speech]
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[/video]
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