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  • 6 votes cast
Jun
12
answered 3D zooming technique to maintain the relative position of an object on screen
May
27
awarded  Scholar
May
27
accepted Turn the front wheels of a car according to the car's bezier path
Apr
24
comment Turn the front wheels of a car according to the car's bezier path
After thinking about it, no, there can't be an error in the derivative calculation. I think my concept is wrong: the 2nd degree der shows how the direction changes, NOT where it goes. I think I should add the 2nd degree to the 1st degree to get the tires' direction. In the end, if I can't find out how to fix it, I'll just do it exactly as you describe! :-)
Apr
24
comment Turn the front wheels of a car according to the car's bezier path
Interpolating, no. I get the Bezier's exact position over time with getPointAt and assign that directly to the car's position. I don't use deltaTime but exact time values.
Apr
24
comment Turn the front wheels of a car according to the car's bezier path
Yes, that's what I thought. I thought of using 2nd degree derivative for more accurate results (instead of approximating with next-frame-location (t+0.0001)). Maybe I have a bug there with my 2nd degree der function, but I can't see it. Or maybe I need to combine 1st and 2nd degree derivatives..? Dunno
Apr
23
asked Turn the front wheels of a car according to the car's bezier path
Jan
6
comment Moving ships between two planets along a bezier, missing some equations for acceleration
@EvilActivity Yeah I saw that too, his original length must have been 20, then forgot to change 0.05 to 0.01. So better have a dynamic 'len' (adaptive to the true arc length, or maybe even exactly equal to it), and calculate the "step" by 1/'len'. I find it so weird noone else has brought this up all these years!!!
Sep
24
awarded  Autobiographer
Oct
8
awarded  Student
Oct
7
comment Extract derived 3D scaling from a 3D Sprite to set to a 2D billboard
@Jonathan Connell Come again?
Oct
7
asked Extract derived 3D scaling from a 3D Sprite to set to a 2D billboard
Aug
7
comment Where to promote your indie game?
The "List of PC game reviewers" example was awesome... Fallout 3, eh?
Jul
28
awarded  Supporter