3d movement question
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I am a little bit confused about movement in 3d space.
Lets say I have an object at position (x,y,z) and I have
a movement vector V and lets say I want to think of movement
in terms of meters/sec and my vector''s magnitude is in meters/sec.
How would I use my positions and my movement vectors, and how would I set up the viewing space(OpenGL) so that my objects move
with the specified speeds.
I guess what im saying is how would I scale meters into pixels
just say that one pixel is one meter?
I am wondering how this is done in professional games.
You don''t scale to pixels, the rendering pipeline will eventually do that for you.
If you have a velocity vector V, then the movement for that object for a frame is this:
r1 = r0 + V*t
wher r1 is the new position vector, and r0 is the current position vector, and t is the elapsed time. Make sure the units are all compatible and it''s easy. When you render the object, you use r as it''s translation.
And you change the direction of V (as well as the camera) whenever they turn.
Magmai Kai Holmlor
- Not For Rent
If you have a velocity vector V, then the movement for that object for a frame is this:
r1 = r0 + V*t
wher r1 is the new position vector, and r0 is the current position vector, and t is the elapsed time. Make sure the units are all compatible and it''s easy. When you render the object, you use r as it''s translation.
And you change the direction of V (as well as the camera) whenever they turn.
Magmai Kai Holmlor
- Not For Rent
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