New Year's IT ball

Happy New Year everyone!

I am the author of iPixelSDK and also join the New Year demoscene.

Video and more about the process of creating a ball under the cut.



Device: iPad
Engine: Cocos2d 2.0
Development environment: iPad iPixelSDK 1.0

The development process on the iPad is as follows: The

ball consists of 4 functions and 2 shaders.

201000: 20. Stars (radial) Ball control function. Initializes an object, calls the move function, connects the draw function and shaders.



201010: 20.0. # Draw (radial) The draw function. Draws a vertex array.



201020: 20.0. # Init_stars (radial) Initialization of the ball, sets the number of points, color and position of each point in a spherical coordinate system.



201030: 20.0. # Move_stars (radial) Moving points, rotation along the xz, xy axes.



201100: S: 20.0. ^ Starfield.vsh (radial) The vertex shader, sets the size of the points, translates the spherical coordinates into three-dimensional Cartesian, and then into two-dimensional (since cocos2d is a 2d engine).



201101: S: 20.0. ^ Starfield.fsh (radial) Pixel shader, draws a glare.



Thanks for attention. Waiting for your comments.