I just wanted to send one big THANK YOU to all of you posting great
patches recently, especially Andreas, Andrew, Dan Winckler, Joshua
(Fried Banana) Clayton, vade, Wesley and yair!

and to yourself as well good sir.

Incidentally, I’m trying to replicate the pool.pat example with shaders. Xray.jit.water is great but fairly expensive in CPU cycles. I’ll post it if I’m successful.

width = prev_minfo->dim[0];
height = prev_minfo->dim[1];

incolspan = in1_minfo->dimstride[0];
inrowspan = in1_minfo->dimstride[1];
outcolspan = out_minfo->dimstride[0];
outrowspan = out_minfo->dimstride[1];
prevcolspan = prev_minfo->dimstride[0];
prevrowspan = prev_minfo->dimstride[1];

if (in1_minfo->type==_jit_sym_float32) {
timestep = x->timestep;
damping = x->damping;
timeSpaceFactor = (timestep*timestep)/(x->spacestep*x->spacestep);
dampFactor = 1 – damping*timestep;

for(i=1; i < height-1; i++) {
fip1_up = (float *)(bip1 + (i-1)*inrowspan);
fip1 = (float *)(bip1 + i*inrowspan);
fip1_down = (float *)(bip1 + (i+1)*inrowspan);
fip2 = (float *)(bip2 + i*inrowspan);

prev_fp = (float *)(prev_bp + i*prevrowspan);
fop = (float *)(bop + i*outrowspan);

for(j=1; j < width-1; j++) {
fop[j] = fip1[j] + dampFactor*(fip1[j] – prev_fp[j] )
- timeSpaceFactor*fip2[j]*(4*fip1[j] – fip1[j-1] – fip1[j+1] -
fip1_up[j] – fip1_down[j]
+ 0.5*(4*fip1[j] – fip1_up[j-1] – fip1_up[j+1] – fip1_down[j-1]
- fip1_down[j+1] ));

CLIP(fop[j], -1, 1);
}
}
}

wes

These last couple of weeks have been amazing on the jitter list, I quite
agree – nothing like pillaging through the work of others – I guess
there are still some viking genes left in me!

Andreas
(working w. boids now, thanks to sage advice from Wesley :-) )

Thanks to all!

AB

>
> Andreas
> (working w. boids now, thanks to sage advice from Wesley :-) )

That sounds like a good ingredient for a recipe:

Put five fresh jit.boids in a fresh xray.jit.water, quickly bringing
cpu to the boil…

I’ve been playing with convolution+feedback lately, and I’m totally
hooked. Here are two lq clips, one recorded using Wesley’s ‘depth
artifacts’ patch with some standard slabs added:

http://www.ruccas.org/pub/nesa/wes2a.mov

and one failed attempt to make a water-like effect:

http://www.ruccas.org/pub/nesa/retro%20flow-17k.mov

made using this patch(which didn’t have the same results on xp):

#P toggle 75 275 15 0;
#P window setfont “Sans Serif” 9.;
#P flonum 199 130 76 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P window linecount 1;
#P message 199 151 88 196617 param amount $1;
#P newex 179 203 332 196617 jit.gl.slab flow @file co.normal.jxs
@type float32 @param amount 0.93;
#P newex 130 23 32 196617 sel 1;
#P number 305 47 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P message 468 416 75 196617 param width 4;
#P newex 179 479 377 196617 jit.gl.slab flow @file cc.brcosa.jxs
@param contrast 5.5 @param brightness 0.99;
#N counter 200;
#X flags 0 0;
#P newobj 58 122 66 196617 counter 200;
#P flonum 469 376 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P message 467 397 81 196617 param width $1;
#P newex 318 168 272 196617 jit.gl.texture flow @adapt 0 @dim 320 240
@type float32;
#P newex 179 441 251 196617 jit.gl.slab flow @file cf.dilate.jxs
@param width 0.98;
#P flonum 469 242 76 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P message 467 263 88 196617 param amount $1;
#P newex 179 294 337 196617 jit.gl.slab flow @file co.additive.jxs
@type float32 @param amount 0.93;
#P newex 173 89 176 196617 jit.matrix 4 char 320 240 @interp 1;
#P newex 172 63 109 196617 jit.op @op > @val 250;
#P newex 172 26 109 196617 jit.noise 1 char 32 24;
#P flonum 287 316 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P message 285 337 81 196617 param width $1;
#P button 135 56 15 0;
#P newex 179 355 326 196617 jit.gl.slab flow @file cf.emboss.jxs
@type float32 @param width 0.28;
#P message 50 293 46 196617 sync $1;
#P user jit.fpsgui 29 203 60 196617 0;
#P newex 179 504 201 196617 jit.gl.videoplane flow @transform_reset 2;
#P newex 36 143 66 196617 t b b erase b;
#P toggle 41 80 15 0;
#P newex 41 101 50 196617 qmetro 5;
#P newex 20 178 88 196617 jit.gl.render flow;
#P newex 39 251 81 196617 jit.window flow;
#P window linecount 2;
#P message 15 35 107 196617 ; jitter glreadback fbo;
#P connect 5 0 2 0;
#P connect 5 2 2 0;
#P connect 2 0 7 0;
#P connect 3 0 5 0;
#P connect 8 0 1 0;
#P connect 4 0 3 0;
#P connect 31 0 8 0;
#P connect 3 0 23 0;
#P connect 23 2 27 0;
#P connect 4 0 27 0;
#P connect 27 0 10 0;
#P connect 10 0 13 0;
#P connect 13 0 14 0;
#P connect 14 0 15 0;
#P fasten 29 0 28 0 204 196 184 196;
#P connect 5 1 28 0;
#P fasten 15 0 28 0 153 145;
#P connect 28 0 16 0;
#P connect 17 0 16 0;
#P connect 11 0 9 0;
#P connect 16 0 9 0;
#P connect 25 0 19 0;
#P connect 21 0 19 0;
#P connect 9 0 19 0;
#P connect 19 0 24 0;
#P connect 24 0 6 0;
#P connect 30 0 29 0;
#P connect 26 0 14 1;
#P connect 12 0 11 0;
#P connect 28 0 20 0;
#P connect 18 0 17 0;
#P connect 22 0 21 0;
#P connect 20 0 28 1;
#P fasten 19 0 16 1 184 465 565 465 565 286 511 286;
#P window clipboard copycount 32;