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Add glTF STEP interpolation support (#15525)

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Lars Müller 2024-12-24 15:25:07 +01:00 • committed by GitHub
parent d1dd044455
commit b087e2554f
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4 changed files with 37 additions and 7 deletions
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14
games/devtest/mods/gltf/init.lua
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@ -55,6 +55,20 @@ core.register_entity("gltf:simple_skin", {
end
})
core.register_entity("gltf:simple_skin_step", {
initial_properties = {
infotext = "Simple skin, but using STEP interpolation",
visual = "mesh",
visual_size = vector.new(5, 5, 5),
mesh = "gltf_simple_skin_step.gltf",
textures = {},
backface_culling = false
},
on_activate = function(self)
self.object:set_animation({x = 0, y = 5.5}, 1)
end
})
-- The claws rendering incorrectly from one side is expected behavior:
-- They use an unsupported double-sided material.
core.register_entity("gltf:frog", {

1
games/devtest/mods/gltf/models/gltf_simple_skin_step.gltf Normal file
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@ -0,0 +1 @@
{"scene":0,"scenes":[{"nodes":[0,1]}],"nodes":[{"skin":0,"mesh":0},{"children":[2]},{"translation":[0.0,1.0,0.0],"rotation":[0.0,0.0,0.0,1.0]}],"meshes":[{"primitives":[{"attributes":{"POSITION":1,"JOINTS_0":2,"WEIGHTS_0":3},"indices":0}]}],"skins":[{"inverseBindMatrices":4,"joints":[1,2]}],"animations":[{"channels":[{"sampler":0,"target":{"node":2,"path":"rotation"}}],"samplers":[{"input":5,"interpolation":"STEP","output":6}]}],"buffers":[{"uri":"data:application/gltf-buffer;base64,AAABAAMAAAADAAIAAgADAAUAAgAFAAQABAAFAAcABAAHAAYABgAHAAkABgAJAAgAAAAAvwAAAAAAAAAAAAAAPwAAAAAAAAAAAAAAvwAAAD8AAAAAAAAAPwAAAD8AAAAAAAAAvwAAgD8AAAAAAAAAPwAAgD8AAAAAAAAAvwAAwD8AAAAAAAAAPwAAwD8AAAAAAAAAvwAAAEAAAAAAAAAAPwAAAEAAAAAA","byteLength":168},{"uri":"data:application/gltf-buffer;base64,AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAABAPwAAgD4AAAAAAAAAAAAAQD8AAIA+AAAAAAAAAAAAAAA/AAAAPwAAAAAAAAAAAAAAPwAAAD8AAAAAAAAAAAAAgD4AAEA/AAAAAAAAAAAAAIA+AABAPwAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAA=","byteLength":320},{"uri":"data:application/gltf-buffer;base64,AACAPwAAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAAAAAACAPwAAgD8AAAAAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAIC/AAAAAAAAgD8=","byteLength":128},{"uri":"data:application/gltf-buffer;base64,AAAAAAAAAD8AAIA/AADAPwAAAEAAACBAAABAQAAAYEAAAIBAAACQQAAAoEAAALBAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAkxjEPkSLbD8AAAAAAAAAAPT9ND/0/TQ/AAAAAAAAAAD0/TQ/9P00PwAAAAAAAAAAkxjEPkSLbD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAkxjEvkSLbD8AAAAAAAAAAPT9NL/0/TQ/AAAAAAAAAAD0/TS/9P00PwAAAAAAAAAAkxjEvkSLbD8AAAAAAAAAAAAAAAAAAIA/","byteLength":240}],"bufferViews":[{"buffer":0,"byteLength":48,"target":34963},{"buffer":0,"byteOffset":48,"byteLength":120,"target":34962},{"buffer":1,"byteLength":320,"byteStride":16},{"buffer":2,"byteLength":128},{"buffer":3,"byteLength":240}],"accessors":[{"bufferView":0,"componentType":5123,"count":24,"type":"SCALAR"},{"bufferView":1,"componentType":5126,"count":10,"type":"VEC3","max":[0.5,2.0,0.0],"min":[-0.5,0.0,0.0]},{"bufferView":2,"componentType":5123,"count":10,"type":"VEC4"},{"bufferView":2,"byteOffset":160,"componentType":5126,"count":10,"type":"VEC4"},{"bufferView":3,"componentType":5126,"count":2,"type":"MAT4"},{"bufferView":4,"componentType":5126,"count":12,"type":"SCALAR","max":[5.5],"min":[0.0]},{"bufferView":4,"byteOffset":48,"componentType":5126,"count":12,"type":"VEC4","max":[0.0,0.0,0.707,1.0],"min":[0.0,0.0,-0.707,0.707]}],"asset":{"version":"2.0"}}