#SPINE2D CHARACTER PHYSICS HOW TO#
#SPINE2D CHARACTER PHYSICS LICENSE#

Additionally, some of the assets I am using in this demonstration are part of asset packs available for purchase and arenвЂ™t my creation.

#SPINE2D CHARACTER PHYSICS LICENSE#

If you are bored, the story of how Spine came to be is an interesting read.ДЇull disclosure, I requested a review license in order to get hands-on time with Spine. Since Spine itself is built over top of the LibGDX library (by one of the frameworks founders to boot), therefore I suppose a LibGDX example makes the most sense.

#SPINE2D CHARACTER PHYSICS HOW TO#

Today we are going to look inside Spine, look at the art generation process, how to make sprite graphics that are animation ready, define an animation, then perhaps most importantly, play that animation back in our game engine of choice. If only there was some way to take the 3D worlds bone based animations and apply them to generating 2D art? Well, there isвЂ¦ Spine. There are other techniques such as onion skinning and rotoscoping to aid in the animation process, but it still remains time intensive. If you have ever done a flipbook animation at the top corner of any of your textbooks, you already have the process of traditional 2D animation down.

Generally, the approach here is to generate a sprite sheet, which is a sequence of slightly altered versions of the same character, which played in sequence results in an animation. In the land of 2D art, the process is often quite different. ItвЂ™s a pretty powerful way to perform animation and every single major 3D application implements IK (and FK вЂ“ forward kinematics). IK is basically a fancy way of saying вЂњmove an end bone and the computer will calculate how all the other bones in the chain will respondвЂќ enabling you to animate by positioning the foot for example and the ankle, knee, and hip will rotate appropriately. Animations are generally defined by moving a series of bones controlling your mesh, which in turn are powered by a system called inverse kinematics. One of the major advantages of working in 3D is once you have your character modeled and rigged, creating new animations is simply a matter of defining a series of poses on a timeline.

Spine2d character physics