Hi guys.
@Kadri
QuoteThe first thing that comes to my mind is an animated footprint sequence for displacement.
Do you mean that I can cause a displacement in TG surface, by using an image or object sequence made out side of TG? Or to do it all in TG.
My preference is to do it in TG. I think I can add a crater in TG. For me the hard part (like with the foot prints) is to not just simply have it appear in 1 frame, but have it happen over the course of several frames.
But really, the hardest part for to understand is how to get the surface to displace severely (the crater or the foot print) at on place, and then less so around the crater or foot print... Over time.
Fior example, in the impact video, there should be a sort of "ripple" effect that displaces the terrain. And with a foot print, there should be sand moving around the area of each step... Im sure I don't want the things to just appear, although from a long distance its not as much of an issue.
So I need the crater. I think that can be done as you guys say, pretty easy. But what about a ripple effect moving out from the impact zone in a circular fashion, where the ground is only momentarily displaced like in a ripple effect from dropping a stone on a calm pond?
And with the foot steps, how to make the sand shader move with the impact of each step... Not just make a step/foot shape (although that is hard for me to think of how to do step by step too) But how to get it to happen !over time (a second or two) and 2) how to displace the sand or dirt shader *around the tracks* in an animated way.
For the foot steps, there is also the question how to get dirt/sand to "kick up" behind the object as it lays down tracks. But probably for that part I would make it part of the object sequence or composite it.
As far as compositing goes, I really want the craters and footsteps to be in TG, it will help me a lot in post to make sure things are where they should be. Having it in TG should look more real, and also give me strong visual indications for time and placement.
But Im open to all Ideas. I just want to finish this finally, and solve a number of other practical problems I have been having of the same sort.
@UI,
THe explosion was all done in post via after effects. IT incorporates 3d animation, 2.5D techniques, as well as stock video(the fire in the first moments and the dust wave). In total it is a pretty simple composite, and took about 2 or 3 hours to do.
And by the way, this is not one of my theory questions, Im actually trying to do this.
