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Ever wonder why baked normal maps just don't look quite right in Unity? I did, so I decided to find out why.https://link.medium.com/IntBAke0L3
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My deep dive into tangent space inconsistencies between applications and Unity has led to a curious discovery. Unity uses per vertex binormal recalculation, _except_ the new VFX Graph which appears to use per pixel.
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Except when they absolutely should be, like for MikkTSpace tangent basis, or depth projections, or parallax offset / occlusion mapping ...https://twitter.com/eevee/status/1223482774428037120 …
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No game is ever truly finish. Every released game came out because the devs got tired of working on it or ran out of money.https://twitter.com/volgaksoy/status/1223770627695185921 …
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Ben Golus proslijedio/la je Tweet
A small prototype: I generated a tile-able liquid-mesh with
#Houdini and move several instances of it along an spline in#UnrealEngine. More details in my#realtimevfx-thread: https://realtimevfx.com/t/simon-trumpler-vfx-sketchbook/4177/35 …@sidefx@UnrealEngine#gamedev#flip#Simulationpic.twitter.com/g7o1MLMHJaHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
As far as I can tell means only xNormal and Substance can bake correct normal maps for Unity and
@godotengine. Every other tool that uses MikkTSpace uses per pixel binormals, like UE4. Everything online seems to suggest UE4 was the odd one here, and it turns out not to be so.Prikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Went through the source code as far back as I could. Looks like Blender really has always been calculating the binormal per pixel, which means it really has never matched Unity's MikkTSpace implementation.
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Does anyone know if
@blender_org changed their tangent space binormal calculations at some point? Lots of places say it matches Unity 5.3+, but at least for Blender 2.8 that's wrong. Blender 2.8 is baking using per pixel binormals, like Unreal.Prikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Ben Golus proslijedio/la je Tweet
Woohoo! After 6 years, The Pedestrian is finally out. Thank you all for the support over these years! https://store.steampowered.com/app/466630/The_Pedestrian/ …
#gamedev#indiedev#madewithunity#indiedevhour#indiegamepic.twitter.com/tnAfGfGgrpHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Oh, and this isn’t getting vertex positions still, just world space distance to edge. Should be able to do a few cross products & dot products to extrapolate the vertex positions from what’s there.
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The issues with it going bonkers when perspective is in the mix is kind of expected, but it also goes catawampus with orthographic views when viewed off-axis, which makes less sense. This is the kind of minutia in understanding of derivatives my brain hasn’t quite grokked.
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Sort of solved it on my own, at least for the use case I wanted to test it with, and only when the triangle is aligned to the view plane. https://twitter.com/bgolus/status/1222436798443311104?s=21 …https://twitter.com/bgolus/status/1222436798443311104 …
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Graphics programmers / shader wizards out there. Somewhere I saw someone post an article on deriving the vertex positions of a triangle in the fragment shader using barycentrics and pixel derivatives. I can't for the life of me find it, anyone else remember it?
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I should do another pass on it to center the grey better.
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Remade this in shader toy for fun. https://www.shadertoy.com/view/WtVGDc https://twitter.com/Rainmaker1973/status/1221455275246399489 …
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Anyone know what this illusion is called? For those wonder, "what illusion", there's no dark or light vertical edges in this image. It's just a saw toothed gradient. I'm going to call it Mock Bands, because I'm pretty sure it's not Mach Bands.pic.twitter.com/mafy3vFnhE
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Ben Golus proslijedio/la je Tweet
Twitter wisdom! In OpenGL, should compressed *3D* textures with S3TC (aka DXT) formats work? Can't quite get them to work (works in D3D/Metal/Vulkan fine). The S3TC spec seems to imply they should not work (https://www.khronos.org/registry/OpenGL/extensions/EXT/EXT_texture_compression_s3tc.txt …), but no such errors as in spec.
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Ben Golus proslijedio/la je Tweet
this is one of the damn geekiest things i have done in
#houdini, just made a tool for@SukiShadowKlaw to wrap ropes around any mesh.#gamedev#indiedevpic.twitter.com/1Zbcr50ZZ3Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Ben Golus proslijedio/la je Tweet
Wrote a post about normal reconstruction, described a method based on
@_Humus_ 's SDAA idea, which is more costly but also more accurate than@turanszkij 's method.@jendrikillnerhttps://atyuwen.github.io/posts/normal-reconstruction/ …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Ben Golus proslijedio/la je Tweet
Fellow Men. We need to talk about the way women are (mis) treated in this country and in this world. Here’s my thread. /1
#WomensMarchHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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