1. һͼƬļĿǰ֧bmpʽ (File->Open)
2. Ҳ
main spikesâ
secondary spikes: â
inner flare: ڲ
ring flare: 

min radius: ǵС뾶ֵԽСâԽࡣ󿴲ЧԳ԰ֵСһЩ
intensity: â/ǿ
length: â=ֵ*ǵ뾶
# of point: âı
angle: תǶ
sharpness: âԵ
saturation: ɫͶ
width: â
rainbow: 0뽥ɫ
size: âεİ뾶
distance: εǵľ
thickness: εĺ

3. òoperation->processʾЧ
4. operation->do allЧӦͼ
