Generate multiple frames with small differences between each.
move 400 0 0 0 0
move 400 0 0 0 .25
move 400 0 0 0 .50
move 400 0 0 0 .75
move 400 0 0 0 1
move 400 0 0 0 m0 <-- knob
vary <knob> <start frame> <end frame> <start value> <end value>
vary m0 0 4 0 1
defines knob behavior
frame <# of total frames>
basename <name>
Use animate instead of display to show GIFs in ImageMagick.
Default framrate for a gif: 100 frames per second
transformation <args> <knob>
if there is a knob, look up its value and apply it to the arguments
basename <name>
set a basename variable (global...)
frames <#>
set a frame # variable
vary <knob> <start frame> <end frame> <start val> <end val> <rate>
compute and store the knob value for each frame
- look for frames basename and vary
- set frames and basename, use default basename if none is provided
- if vary is present without frames, stop
- for each vary commmand
- compute and store every frame knob value
- normal drawing pass with:
- repeat loop for each frame
- update knob values in symbol table
- if animating, save at the end of each loop, create animation at final end
In C: linked list