How do I make IK constraints for custom rigs?

[intergravitation (devin real)]

1. What do you want to achieve?
   I want to make my custom rig able to use IK, like this:
   
2. What solutions have you tried so far?
   I tried looking around on the developer forum and hub for any tutorials or if anyone else was having this problem but couldn’t find anything.

Edit: Moved to Art Design Support.

[dthecoolest]

I’m assuming you want to use inverse kinematics to create predefined animations and if so yeah Roblox only does it for R15. The only other option is to use another software like Blender in order to define your own IK rig then import it to Roblox I believe using the tutorial below.

Blender rig exporter/animation importer

I’ve developed a plugin for Roblox that can export any Roblox rig into Blender and generate a Blender Armature (rig) equivalent to the Roblox one using the accompanying Blender addon. Then, in Blender an animation can be designed. When done, the Blender addon can be used to generate Roblox animation data equivalent to the animation designed in Blender. Using the Roblox plugin, this can be imported back into Roblox again. Note: Skinned meshes/bones are not supported. If you want to animate a ski…