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A speculative recreation of the effect. (Nodes in replies) The basic idea is to flatten relative to the camera's local Z axis. To keep it from being shaded flat, some kind of custom normals must be used. You can derive it however you like, I'm just using original normals here.

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The #geometrynodes Curve Normals Proxy Rig is almost ready! You place it on the face and adjust some controls to line things up, and it just works. The controls can be worked with in lots of different ways. You can attach it to an existing rig or animate it. Those bones are controlling a mesh which controls the curve points, so you can also make Shapekeys on the meshes instead and Drive them to match other expression keys! The forehead above the top curve blends to Radial Normals, and under the chin blends to the actual mesh Normals. I'm adding the rest of the controls to allow completely arbitrary Normals per curve point, and then its just cleanup and it can be released! (There's lots more that can be added to it like falloff and interpolation controls, but if I try to put everything into the first version it'll never release.)
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The #geometrynodes Curve Normals Proxy Rig is almost ready! You place it on the face and adjust some controls to line things up, and it just works. The controls can be worked with in lots of different ways. You can attach it to an existing rig or animate it. Those bones are controlling a mesh which controls the curve points, so you can also make Shapekeys on the meshes instead and Drive them to match other expression keys! The forehead above the top curve blends to Radial Normals, and under the chin blends to the actual mesh Normals. I'm adding the rest of the controls to allow completely arbitrary Normals per curve point, and then its just cleanup and it can be released! (There's lots more that can be added to it like falloff and interpolation controls, but if I try to put everything into the first version it'll never release.)

aVersionOfReality

57,639 Aufrufe • vor 1 Jahr

I've built a setup in Geometry Nodes to get data from bones, so now I can do things like make Normals from them, and I'm experimenting with much more. The Normal here is basically a cylinder around each bone. So it doesn't work that great around the shoulders, but its great on the arms and legs. Its the same idea as when you do radial/sphere Normals for a face or hair, but for the whole body.
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I've built a setup in Geometry Nodes to get data from bones, so now I can do things like make Normals from them, and I'm experimenting with much more. The Normal here is basically a cylinder around each bone. So it doesn't work that great around the shoulders, but its great on the arms and legs. Its the same idea as when you do radial/sphere Normals for a face or hair, but for the whole body.

aVersionOfReality

13,309 Aufrufe • vor 9 Monaten

I'm putting a lot of attention into getting a high quality transfer for the Face Proxy Mesh we're adding to the Fondant Custom Normals Blender addon. Even if the proxy has great Normals, it will not matter if the transfer is distorted. A basic world space Nearest Surface (aka Nearest Face Interpolated) transfer can get screwed up if there are gaps between the meshes. And if they are different shapes and poly counts, there will be! So the first big piece of the puzzle is getting a clean transfer. Before transferring Normals, a transfer space is made and a UV map is transferred from the proxy. Then any other data needed can be transferred in that UV space. As long as it is right, any other data will be clean! (Normals or anything else you might want.) And a UV map is easy to debug because you can put a grid texture on it. If the grid is evenly spaced, then distortion is minimal. This clip shows the differences in distortion between a basic World Space transfer and a better transfer space made by blending Sphere projection and a simple projection of the face forward onto the proxy (used down the center line.) Different faces will need slightly different configuration. Most of this is automatic, but the addon will have some simple controls to adjust it to different face shapes.
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I'm putting a lot of attention into getting a high quality transfer for the Face Proxy Mesh we're adding to the Fondant Custom Normals Blender addon. Even if the proxy has great Normals, it will not matter if the transfer is distorted. A basic world space Nearest Surface (aka Nearest Face Interpolated) transfer can get screwed up if there are gaps between the meshes. And if they are different shapes and poly counts, there will be! So the first big piece of the puzzle is getting a clean transfer. Before transferring Normals, a transfer space is made and a UV map is transferred from the proxy. Then any other data needed can be transferred in that UV space. As long as it is right, any other data will be clean! (Normals or anything else you might want.) And a UV map is easy to debug because you can put a grid texture on it. If the grid is evenly spaced, then distortion is minimal. This clip shows the differences in distortion between a basic World Space transfer and a better transfer space made by blending Sphere projection and a simple projection of the face forward onto the proxy (used down the center line.) Different faces will need slightly different configuration. Most of this is automatic, but the addon will have some simple controls to adjust it to different face shapes.

aVersionOfReality

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Here's what's coming next for the Fondant Custom Normals Addon: Adjustable 3D anime face proxy mesh! If you've tried the proxy method before, you know that it can be difficult to get good results as you need the right topology and shape for good Normals, and also for it to fit to the face properly for a clean transfer. The solution is to use two proxies: one for the shape, and one for the fitting. But that gets cumbersome! And it is still often unintuitive to get the correct shading shapes. The next major feature of the addon will be aiming to solve these problems by providing a convenient proxy mesh that you can fit to your character's face with some rig controls, and then handles the rest under the hood with Geometry Nodes. All the benefits of complexity without having to deal with it yourself! This clip shows the general idea, but is early stages. I'll be sharing more as I build it out.
1:24

Here's what's coming next for the Fondant Custom Normals Addon: Adjustable 3D anime face proxy mesh! If you've tried the proxy method before, you know that it can be difficult to get good results as you need the right topology and shape for good Normals, and also for it to fit to the face properly for a clean transfer. The solution is to use two proxies: one for the shape, and one for the fitting. But that gets cumbersome! And it is still often unintuitive to get the correct shading shapes. The next major feature of the addon will be aiming to solve these problems by providing a convenient proxy mesh that you can fit to your character's face with some rig controls, and then handles the rest under the hood with Geometry Nodes. All the benefits of complexity without having to deal with it yourself! This clip shows the general idea, but is early stages. I'll be sharing more as I build it out.

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Fondant Easy Custom Normals 1.1.0 for Blender is out! In addition to better Weighted Normals and Laplacian Smooth, you can now use Extrapolated Boundaries to fix the edges of meshes. Clean anime toon shading with less hassle, holding loops, or workarounds. Link below ($0).
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Fondant Easy Custom Normals 1.1.0 for Blender is out! In addition to better Weighted Normals and Laplacian Smooth, you can now use Extrapolated Boundaries to fix the edges of meshes. Clean anime toon shading with less hassle, holding loops, or workarounds. Link below ($0).

aVersionOfReality

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The Fondant Custom Normals Blender addon is being tested, and we're aiming for a 1.0 release next week! The first feature is the Weighted Normals + Laplacian Smoothing Geometry Nodes modifier. This let's you calculate Normals that are as clean as a nice quad mesh even if your topology is a mess and triangulated! We'll be following up with more tools to support creating high quality Normals for 3D anime and vtuber characters. We have an optimized adjustable Face Normal Transfer proxy mesh nearly ready to go. Check out the Docs to see more about the Addon's features and workflow (link in the reply.)
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The Fondant Custom Normals Blender addon is being tested, and we're aiming for a 1.0 release next week! The first feature is the Weighted Normals + Laplacian Smoothing Geometry Nodes modifier. This let's you calculate Normals that are as clean as a nice quad mesh even if your topology is a mess and triangulated! We'll be following up with more tools to support creating high quality Normals for 3D anime and vtuber characters. We have an optimized adjustable Face Normal Transfer proxy mesh nearly ready to go. Check out the Docs to see more about the Addon's features and workflow (link in the reply.)

aVersionOfReality

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The Fondant Easy Custom Normals Blender addon 2.0.0 is out! We've added the Anime Face Proxy Normals tool I've been developing as a new tier to help fund further development ($10). Get it on Gumroad (link below.) The free tier Laplacian Smooth modifier has also received fixes and optimizations. The Normals Proxy is a set of rigged Curves + Geometry Nodes magic. Place it around your anime face and get clean toon shading fast (compared to other methods.) Easily adjust the shape with the rig for different expressions and poses, add it to your character's rig, and even shapekey it for expression keys!
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The Fondant Easy Custom Normals Blender addon 2.0.0 is out! We've added the Anime Face Proxy Normals tool I've been developing as a new tier to help fund further development ($10). Get it on Gumroad (link below.) The free tier Laplacian Smooth modifier has also received fixes and optimizations. The Normals Proxy is a set of rigged Curves + Geometry Nodes magic. Place it around your anime face and get clean toon shading fast (compared to other methods.) Easily adjust the shape with the rig for different expressions and poses, add it to your character's rig, and even shapekey it for expression keys!

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✏️Tutorial on how to achieve the eyeball effect: This effect is achieved by adding 2 meshes that have inverted normals on them! One is for the whites of the eyes and one is for the iris itself. You can see how the meshes look like in the video below.
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✏️Tutorial on how to achieve the eyeball effect: This effect is achieved by adding 2 meshes that have inverted normals on them! One is for the whites of the eyes and one is for the iris itself. You can see how the meshes look like in the video below.

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The first version of the Fondant Face Proxy Normals is feature complete, so here's a closer look at how it is used (character by Joce ). First, align the armature to the head. If you want to attach to an existing rig, make sure the Root bone is exactly placed on the head bone. Adjust it to fit the face with the alignment bone layers. Use the debug material to help see what you are doing. Then use the other bones to adjust the shape. You can attach it to an existing rig by parenting the root bone to the head bone, or even merging the proxy rig into it (2nd clip.) The Normals rig can be posed on the fly for different shots. Since the setup actually uses a mesh object to control the curves (via Geometry Nodes), you can also easily make shapekeys on the proxy to correspond to expression keys, and then drive them (3rd clip.)
3:10

The first version of the Fondant Face Proxy Normals is feature complete, so here's a closer look at how it is used (character by Joce ). First, align the armature to the head. If you want to attach to an existing rig, make sure the Root bone is exactly placed on the head bone. Adjust it to fit the face with the alignment bone layers. Use the debug material to help see what you are doing. Then use the other bones to adjust the shape. You can attach it to an existing rig by parenting the root bone to the head bone, or even merging the proxy rig into it (2nd clip.) The Normals rig can be posed on the fly for different shots. Since the setup actually uses a mesh object to control the curves (via Geometry Nodes), you can also easily make shapekeys on the proxy to correspond to expression keys, and then drive them (3rd clip.)

aVersionOfReality

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I'm really happy with how this hair turned out! This is made up of "hair bulk" which is just sculpted and then individual hair curves blending into it. I used the Data Transfer modifier to copy the normals from the bulk so you don't see the strands intersecting! #blender #b3d
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I'm really happy with how this hair turned out! This is made up of "hair bulk" which is just sculpted and then individual hair curves blending into it. I used the Data Transfer modifier to copy the normals from the bulk so you don't see the strands intersecting! #blender #b3d

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Taking a look at Camera based changes to the Face Proxy Normals. 3D anime characters have the fundamental problem that Normals which produce the right shading from the front often don't from 3/4ths and side view without making big compromises. On this character, the puffiness of the cheeks means it doesn't work right. If we reduce them, we ruin the silhouette of the geometry. If we change the Normals further around the side to get a shading terminator that does work in both views, then when the light moves it will probably have new problems at other angles. There are combos that work pretty well for every angle, but they limit your face shape options. Everything is easier if you can make Camera based changes! This is rotating the Normals on the proxy before transfer to the face in Geometry Nodes. Its the same as rotating the bones shown at the start. Since there are only 3 spline profiles, its a bit low res to get this quite right, but you get the general idea. Its going to take some experimenting to figure out the best way to handle it all, but it will be much easier to author on the proxy than on the face.
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Taking a look at Camera based changes to the Face Proxy Normals. 3D anime characters have the fundamental problem that Normals which produce the right shading from the front often don't from 3/4ths and side view without making big compromises. On this character, the puffiness of the cheeks means it doesn't work right. If we reduce them, we ruin the silhouette of the geometry. If we change the Normals further around the side to get a shading terminator that does work in both views, then when the light moves it will probably have new problems at other angles. There are combos that work pretty well for every angle, but they limit your face shape options. Everything is easier if you can make Camera based changes! This is rotating the Normals on the proxy before transfer to the face in Geometry Nodes. Its the same as rotating the bones shown at the start. Since there are only 3 spline profiles, its a bit low res to get this quite right, but you get the general idea. Its going to take some experimenting to figure out the best way to handle it all, but it will be much easier to author on the proxy than on the face.

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