In Scotty3D, the `Skeleton::skin()` function gets called on every frame draw iteration, recomputing all skinning related quantities. In this function, you should read vertices from `input.verts()` and indices from `input.indices()`, and write the resulting positions and norms to `v.pos` and `v.norm` for every vertex in the input vertices list.
<!-- In Scotty3D, the `Skeleton::skin()` function gets called on every frame draw iteration, recomputing all skinning related quantities. In this function, you should read vertices from `input.verts()` and indices from `input.indices()`, and write the resulting positions and norms to `v.pos` and `v.norm` for every vertex in the input vertices list. -->
In Scotty3D, the `Skeleton::skin()` function gets called on every frame draw iteration, recomputing all skinning related quantities. In this function, you should read vertices from `input.verts()` and indices from `input.indices()`, and write the resulting positions to `v.pos` for every vertex in the input vertices list.
You will be implementing a Capsule-Radius Linear Blend Skin method, which only moves vertices with a joint if they lie in the joint's radius. The `Skeleton::skin()` function also takes in a `map` of vertex index to relevant joints that you must compute the above distance/transformation metrics on. You are also responsible for creating this `map`, which is done so in `Skeleton::find_joints()`. Don't worry about calling this function, it is called automatically before skin is called, populating the `map` field and sending it over to the `skin()` function. Your `Skeleton::find_joints()` implementation should iterate over all the vertices and add joint j to vertex index i in the map if the distance between the vertex and joint is less than `j->radius` (remember make sure they're both in the same coordinate frame.)
You will be implementing a Capsule-Radius Linear Blend Skin method, which only moves vertices with a joint if they lie in the joint's radius. The `Skeleton::skin()` function also takes in a `map` of vertex index to relevant joints that you must compute the above distance/transformation metrics on. You are also responsible for creating this `map`, which is done so in `Skeleton::find_joints()`. Don't worry about calling this function, it is called automatically before skin is called, populating the `map` field and sending it over to the `skin()` function. Your `Skeleton::find_joints()` implementation should iterate over all the vertices and add joint j to vertex index i in the map if the distance between the vertex and joint is less than `j->radius` (remember make sure they're both in the same coordinate frame.)
