Filter
1, create a new 500x500 black background file, with a brush on the above any point point.
2. Display the ruler and draw horizontal and vertical guides at (250,250). Create a new layer, hold down SHIFT and pull the gradient from the center, what is this gradient called? I do not know, anyway, this is the case, (note, be sure to start from the center), the layer mode is color filter.
3, filter--rotation distortion, angle 400
4, filters--polar coordinates/polar coordinates to the plane coordinates
5, this step must look carefully. Adjust the image size to 1000x1000 and deform so that the upper image is located just below the image. Copy a layer, transform, flip vertically, and move it to the top half of the image. The key to this step is to be aligned, the way is to move the "show bounding box" before the hook, the graphics in the movement of the boundary display, good and the Guide line aligned.
6, to the good two-tier merger, must be good, or the consequences of conceit! Filters--Polar coordinates/from plane to polar coordinates
7, below the free play well, hue/saturation coloring, and then deformation, whatever you. If you think the color is not rich enough, add a gradient adjustment layer on top, and try to color the layer mode.