hi, How is camera movement done in demos. For example, move camera back, rotate, and move camera left. Does that make sense? thanks, Scott Email Website
"If you try and don''t succeed, destroy all evidence that you tried."

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Jenison
''Things are more like they are now then they ever were before'' - Truman

hey,

actually, my problem is the sequence of events. would u just use a few loops?

Scott

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"If you try and don''t succeed, destroy all evidence that you tried."

I posted a similar queation... Try this!

http://www.iol.ie/~hennessye/steamdriven.htm

Thanks!

John William Blair

I would use keys...
if you have used any 3d program (maya or 3d studio) they calculate traslation though keys. bascially they have two points...they then calculate the path on how to get to that point when the file loads.

this is where knowing how to calculate benzier curves comes really handy.

lets say you have two keys...one at the origin and one at x,y.
You could say..I want to reach that point in 3 seconds. You calculate how much you need to move to get to that spot in 3 seconds....and how you get to that spot. Does that camera arc or does it go directly to that point.

thats just one approach...
from looking at how maya and 3DS save animation...it makes sense to me...but then again...all my reasoning makes sense to me





Jenison
''Things are more like they are now then they ever were before'' - Truman

okie.. so, i know how to do this in algebra class, but not at home to move from point 1 to point 2 i have to get a direction vector from 1 to 2 right? so i''m curious to get the direction vector and then how to move from point 1 to point 2 along that vector.. i know it''s a loaded question(s), but even just an outline of methods would be great.

Scott

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"If you try and don''t succeed, destroy all evidence that you tried."

well to calculate where your next positon is going to be with a constant velocity would be

roty = angle of rotation about the y axis
rotz = angle of rotation about the z axis

x = sin(rotz) * cos(roty)
y = sin(rotz)
z = cos(rotz) * cos(roty)

multiply each by its own velocity to get a more ''real'' effect.
(ie gravity on the y)



Jenison
''Things are more like they are now then they ever were before'' - Truman

You might want to have a look at www.fyslab.hut.fi/~jyp/tut/3dica2.htm. Look for the section about B-Splines. Never tried it; the English isn''t all it could be, but it is conprehensable; they sound like what you want.

HTH,
THamas

You might want to check www.fyslab.hut.fi/~jyp/tut/3dica2.htm. Read the section on B-Splines. I haven''t tried it myself, but they sound like what you want.

HTH,
ThamasTah

Yes i looked at it, but i dint understand much of it, i will have to find another source of information for this. haven''t anyone made anyhing similar based on nehes code, that would be the ultimate thing because we are all familiar with that.