Tuesday I hosted a talk about iridescence and anisotropy for glTF materials. Went well I thought, and good to hear people's questions. https://www.youtube.com/watch?v=PyMgrV8BErY
This one uses counter-rotating Depth and Normal maps, for a moire like distortion effect which aims to obscure the fact that it’s using rotating UVs to distort the refraction to fake something like a heat refraction effect.
Nice! The previous one was a lot more obviously rotating, making it look like a clear liquid on top, swirling around. This one looks really good though
Working on cleaning up a CC0 car model, to make a showcase asset to demo glTF materials. A gazillion nodes to clean up, bad transforms, all kinds of fun things to fix.
Anyhow, early materials test with the glTF thin film shader...
Added UVs for the paint, so I could so a powder coat. The seats have a quick leather texture, and the tires have a normal map for the tread instead of geo.
Note: this isn't my model, it's a CC0 asset from Sketchfab. I'm cleaning it up as a job for the Khronos Group, to add it to the glTF Sample Assets repo which I've been contributing to for a while.
Replies
https://nme.babylonjs.com/#UPFJUT#2
Found the original, it’s in the Huntington!
https://ericchadwick.com/gltf/
Tuesday I hosted a talk about iridescence and anisotropy for glTF materials. Went well I thought, and good to hear people's questions.
Slides etc. here https://www.khronos.org/events/exploring-the-artistic-frontier-unleashing-creativity-in-3d-models-with-gltf-and-pbr
You can download the model here:
https://github.com/KhronosGroup/glTF-Sample-Assets/blob/bd48bfc14440e2e1a5b27741d57493cfd29e83e3/Models/glTFPotOfCoals/glTF-Animation/glTFPotOfCoals_HeatAnimation.glb
https://github.com/KhronosGroup/glTF-Sample-Assets/pull/127
This one uses counter-rotating Depth and Normal maps, for a moire like distortion effect which aims to obscure the fact that it’s using rotating UVs to distort the refraction to fake something like a heat refraction effect.
Anyhow, early materials test with the glTF thin film shader...
USDz isn't right yet, the AO is bleeding into the glass. But here's a live demo, and you can check it out in AR too!
https://api.rapidpipeline.com/viewer?id=cnRkol7wbe
Note: this isn't my model, it's a CC0 asset from Sketchfab. I'm cleaning it up as a job for the Khronos Group, to add it to the glTF Sample Assets repo which I've been contributing to for a while.
https://sandbox.babylonjs.com/?kiosk=false&assetUrl=https://raw.githubusercontent.com/KhronosGroup/glTF-Sample-Assets/e3a4ce73bc361ef1a4597a74d5bff5e3d70a3b7a/Models/CarConcept/glTF/CarConcept.gltf&cameraPosition=2,1.5,0&autoRotate=true&3dcommerce