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Well, I guess these could kinda fit here. 
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Last edited by Stahlregen; 1 August 2008, 19:02. -
and thanks for the chance to show again the benefit of one of my favorite shader code lines:
uv = 1.0 - abs( frac( uv * 0.5 ) * 2.0 - 1.0 ); // Eo.S' mirror code
(to use instead of frac(uv))
if you use tiles - mirror them
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Heh, I thought about that one, but I was too lazy to check what to replace with the mirror code.
Anyway, it's amazing what one can achieve with even just a slight grasp about how uv coordinates work and some trial and error... here's some variants with crazier tiling.
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Talk about having too much fun with a single preset...Comment
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for some reason this simply had to happen...
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one warp shader bugfix [GetBlur3(uv_red).x) --> GetBlur3(uv_red)).x] + some minor editsComment
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Heh, tried to squeeze some momentum out of my brain. 'm suprised it actually looks somewhat convincing. Could use some tweaking, though.
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cool, i thought if this too!
but that's horribly more complicated - angular-momentum means adding another kind of energy (which you have to keep constant in the sum).
without rotation it is quite simple:
@bounce:
- separating tangential and orthogonal property of the motion vector
- switching the orthogonal property of the velocity vector of the two balls (assuming an equal mass)
if you can tell me the formula for impuls transmission with angular momentum, i will see what i can do
(maybe it's in one of my game-programming books...
)
but i will hardly derive this on my own, maybe if i can't sleep in
and one more thing: adding a rotation would also mean 2 more variables per shape (rotation speed and current angle), and i already use 4 vars per shape... but you have only approx. 20 variables at all. - if i am lucky, i can do it with 3 shapes.
btw: here's one 'tracer ammunition' precursor of the original bouncing balls preset - just for the case that you like to do some further tests on your own
(NB: 'using tracer ammunition' is a concept described in the book 'The Pragmatic Programmer' - http://www.amazon.com/Pragmatic-Prog...7882701&sr=1-1 )
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2 and a half hour for that shit (without formulary or even pen and paper)
if i just could be that concentrated with my homework
Last edited by Flexi; 5 August 2008, 12:48.Comment
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Awesome stuff.
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there was one sign error with the bounce on the left border and i also reworked the collision detection - not to mention some composite shader action.
there's a work in progress - the blue channel is still unused. but i think this one is still worth a upload.Comment
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dammit, i fixed one sign error but produced another one
now this one looks most convincing to me.
you can fix the template by mashing the motion/equations from this preset to it.(if you want to produce remixes)Last edited by Flexi; 7 August 2008, 07:56.Comment
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and another episode of 'learn a lesson from a gifted'.
sometimes things flow to me and i just can't disguise.
again i reinforced the original bouncing cubes by reclaiming the full screen and doing some great shading effects.
I am into Milkdrop...Comment
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