Flashes
Firework Flashes during the first Tsmoke seconds generates smoke filled
area (in a dark sky). Thereafter a series of light (reddish) flashes occur in the smoke
filled portion as in fire works. The duration
of flashes 'tflash', maximum radius of area 'radius' and its center 'x' and 'y'
coordinates may be specified. Reasonably long dark (or black blank) clip
will show the effect properly.
RGB, YUY2 and Planar 8/ 9-16/ 32 bit depth formats are supported. Thread safe.
Details of parameters
| Description |
Name |
Type |
Limits |
Default |
| clip |
|
clip |
|
none |
| start frame number |
sf |
Integer |
within clip |
first frame |
| end frame number |
ef |
Integer |
within clip |
last frame |
| x coordinate of source |
x |
integer |
to ensure visibilty of fireworks |
mid frame width |
| y coordinate of source |
y |
integer |
ensure visibility |
frame height/2 |
| Maximum radius of smoke area |
radius |
integer |
diagonal of frame |
half of smaller dimension of frame |
| time in seconds for smoke filling |
tsmoke |
float |
more than 0 |
1 |
| duration of each flash |
tflash |
float |
more than 0 |
1 |
#Usage examples:-
Flashes(last,51,650,280,200,300,4,1)
Flashes(last,51,650,tsmoke=4)
Flashes(last,51,650, radius=150, tflash=1)