There are some threads here: http://diylightanimation.com/index.php?topic=8983.0 http://doityourselfchristmas.com/forums/showthread.php?21168-Question-on-using-Nutcracker-to-animate-a-single-strand-of-pixels Here is some of those threads <md..a thread on DIYC will probably cause me to do a new effect class for chases. The thread was here: http://doityourselfchristmas.com/forums/showthread.php?21168-Question-on-using-Nutcracker-to-animate-a-single-strand-of-pixels/page2 it was started by people who want to have a single string along their roofline and be able to get nutcracker effects. DennyMo; you are right it gives an error. I will look into this. For now, a workaround is this, if you want a 1x50 roofline, create this: 1 string x 200 pixels in the effect set display window as 90 degrees Now it generates 1 string with pixels 1-50 as you desire without giving a divide by zero I created a rgb target in your account called LINE_SEAN and an effect called meteors1_sean here is the result yep, i think just meteor and butterfly would be good for a single string. I will build the new effect class called chase and get a dozen or so options on it. I am thinking chase with 1,2,3 colors? color1? color2? color3? how many pixels per color (default 1)? ( I am thinking of things like grouping colors as 3 pixels each, 5 pixels .etc.) direction? Allow chase to go left to right or right to left speed? (1=normal speed, .5 twice as slow, 3 = 3 times faster.) sparkle percentage? (0-100, indicates random pixels set to white) solid color fades? (Y or N, take color 1 and fade to color 2 over fade duration) fade duration? (Enter seconds for fade, this is used with the above question) well, that is just a start for chases sean Some more single string effects. Target is 1x200, 4 folds, 90 degree window. This will produce a 1x50 single string GARLAND effect: Effect Settings username dennymo user_target LINE_SEAN effect_class garlands effect_name GARLAND_SEAN window_degrees 90 start_color #FF0D05 end_color #00FF00 frame_delay 30 sparkles 0 seq_duration 10 garland_gap 5 garland 0 show_frame N submit Submit Form to create your effect OBJECT_NAME garlands BUTTERFLY effect Effect Settings username dennymo user_target LINE_SEAN effect_class butterfly effect_name BFLY_SEAN window_degrees 90 frame_delay 50 sparkles 0 seq_duration 10 formula 1 radian_shift 0 start_color #FF1303 end_color #0FFF4F background_chunk 2 background_skip 50 background_color #FFFFFF submit Submit Form to create your effect OBJECT_NAME butterfly and some more discussion double chase i was thinking about, i will add it. multiple chase by dividing into sections sounds cool, ill look into it. shouldnt be hard. i am thinking of something else. a batch capablity. You have say 5 strings around your house. You want a different effect on each string (or maybe the same), fill in a table Batch# target Effect 1 chase garland1 2 chas2 garland1 3 chase3 garland3 4 chase5 fly now press a button and i will generate 4 runs of nutcracker and then merge the 4 into one output file. i am working on the target generator where u can change the starting pixel (right now it is always 1). This way if 30 pixels is one eave and 20 is the next you create two targets chase1 string 1 pixels 1-30 chase2 string 1 pixels 31-50 now you can do things like the butterfly effect on the two and they will be exactly synced in color even though they have different pixel count seems single string effects could get better and better. oh well, now i think i need rgb on my eaves.