I have 5 minutes of sunset ....Now i dragged the video on the time line and i'm stretching the video with ctrl and drag then i'm adding the Velocity envelope...
I remember there's the option how to import image sequence from a file and choosing how many pictures to take.....
Could you explain how to act in Vegas 10 please?
thx

I can't find the script render image sequence in Vegas 10!

It's now under the "Render As" options (6th one in the list).

Thx my friend!

Sorry, but I'm confused, Are you saying now you can choose to render a specific numbering of frames,
eg. frames 0,5,10,15,20 or 1,26,51,76,101 etc to enable simulated timelapse.
if so, I cant find it :(

You can't. You should find "Render Image Sequence" script for this task. It is free, but I can not remember the link

The "Render Image" script was included in older versions of Vegas before going to an image sequence got moved to File - Render As. But there are many other scripts out there that can do that task.