Add glTF animation support

games/devtest/mods/gltf/LICENSE.md

@@ -1,4 +1,4 @@
-glTF test model (and corresponding texture) licenses:
+The glTF test models (and corresponding textures) in this mod are all licensed freely:
 
 * Spider (`gltf_spider.gltf`, `gltf_spider.png`):
   * By [archfan7411](https://github.com/archfan7411)

games/devtest/mods/gltf/init.lua

@@ -27,8 +27,34 @@ do
 		},
 	})
 end
+
 register_entity("snow_man", {"gltf_snow_man.png"})
 register_entity("spider", {"gltf_spider.png"})
+
+minetest.register_entity("gltf:spider_animated", {
+	initial_properties = {
+		visual = "mesh",
+		mesh = "gltf_spider_animated.gltf",
+		textures = {"gltf_spider.png"},
+	},
+	on_activate = function(self)
+		self.object:set_animation({x = 0, y = 140}, 1)
+	end
+})
+
+minetest.register_entity("gltf:simple_skin", {
+	initial_properties = {
+		visual = "mesh",
+		visual_size = vector.new(5, 5, 5),
+		mesh = "gltf_simple_skin.gltf",
+		textures = {},
+		backface_culling = false
+	},
+	on_activate = function(self)
+		self.object:set_animation({x = 0, y = 5.5}, 1)
+	end
+})
+
 -- Note: Model has an animation, but we can use it as a static test nevertheless
 -- The claws rendering incorrectly from one side is expected behavior:
 -- They use an unsupported double-sided material.

games/devtest/mods/gltf/models/gltf_simple_skin.gltf

@@ -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":"LINEAR","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"}}