mesh.proto

package mesh;

message Mesh {
    
	message Layer {
        required string name    = 1;
        required int32  columns = 2;
        required int32  rows    = 3;
        repeated float  data    = 4;
    }

    repeated Layer layers = 1;
    repeated uint32 indices = 2;
    
    required int32 primitive_type = 3;
}

message Quaternion {
    required float r = 1;
    required float i = 2;
    required float j = 3;
    required float k = 4;
}

message Vector {
    required float x = 1;
    required float y = 2;
    required float z = 3;
}


message Transform {
    required Vector translation = 1;
    required Quaternion rotation = 2;
}

message Animation {
    message Keyframe {
        required float time = 1;
        repeated Transform bone_transforms = 2;
    }

    required string name = 1;
    required float duration = 2;
    repeated Keyframe keyframes = 3;
}

message Skeleton {
    message Relationship {
        required int32 parent = 1;
        required int32 child = 2;
    }

    message Bone {
        required string name = 1;
        required Transform transform = 2;
    }

    repeated Bone bones = 1;
    repeated Relationship hierarchy = 2;
    repeated Animation animations = 3;
    
}