Librarian

Following some tutos ..Don't see and understand properly maybe this spinets .. Isssue.hiplc

@Follyx This

Ola Peoples! I'm just gonna post my adventure regarding and learning more about organic form and modeling. Have fun , and I hope that someone can help with tips and other Trix in Vex or just enjoying this Topic. Starting model, it's Lily - L-system. Reading ON GROWTH AND FORM BY D’ARCY WENTWORTH THOMPSON Cambridge: at the University Press 1917. This is not for professionally CG artists only for Hobbyist-sss

Crossing and Winding Number Algorithm + wave Solver .. Learning Sharing CrosswINDsoLVERwAVEsRLE.hiplc

Finito with this also ,,meanly because its Vop baserad .. I see somehow better in VOp..have Fun. SrleForeachprimVop.hiplc

Yessssssss @vinyvince Hm Like it

single_lineFix1.hiplc

On this site you have Olalala la Nice stuff and Codes Files abs Everything.Have Fun . http://dgd.service.tu-berlin.de/wordpress/ddg2018/

@dyei nightmare i did some research on Flocky MOcky . HAve Fun //variable set v@v = (nrandom() - 0.5) * 2;//chv("InitVelocity"); float extent = 1; v@v += normalize(@P);//normalize(fit01(rand(@ptnum), {1,1,1} * -extent, {1,1,1} * extent)); v@accel = {0,0,0}; v@N = normalize(v@v); v@up = {0,1,0}; f@mass = 1; i@id = @ptnum; f@CohesionRadius = chf("CohesionRadius"); f@CohesionSpeed = chf("CohesionSpeed"); f@AlignmentRadius = chf("AlignmentRadius"); f@AlignmentWeight = chf("AlignmentWeight"); //Solver Set -------------------------- //integr @v += @accel * @TimeInc; @P += @v * @TimeInc; @accel = {0,0,0}; -------------------------- //cohesion @v += @accel * @TimeInc; @P += @v * @TimeInc; @accel = (random(@ptnum)-10.5) * 0.3;//{0,0,0}; int Neighbours[] = nearpoints(0, @P, @CohesionRadius); int NeighboursCount = len(Neighbours); vector AvgPos = {0,4,0.5}; foreach (int i ; Neighbours) { if(@ptnum != i) { vector pos; getattribute(@OpInput1, pos, "point", "P", i, 0); AvgPos += pos; } } AvgPos /= NeighboursCount; v@accel += normalize(AvgPos - @P) * @CohesionSpeed; ----------------------------------------------------------- //Align int Neighbours[] = nearpoints(0, @P, @AlignmentRadius); int NeighboursCount = len(Neighbours); vector AvgVel = {0,1,0}; foreach (int i ; Neighbours) { if(@ptnum != i) { vector vel; getattribute(@OpInput1, vel, "point", "v", i, 0); AvgVel += vel; } } AvgVel /= NeighboursCount; v@accel += (AvgVel - @v) * @AlignmentWeight; -------------------------------------------------------------------- //Separation float SeparationRadius = @CohesionRadius * chf("speed"); int Neighbours[] = nearpoints(0, @P, SeparationRadius); int NeighboursCount = len(Neighbours); vector DirectionToNeighbour = {0,0,0}; foreach (int i ; Neighbours) { if(@ptnum != i) { vector pos; getattribute(@OpInput1, pos, "point", "P", i, 0); DirectionToNeighbour += normalize(@P - pos); } } DirectionToNeighbour *= 1.0 / SeparationRadius; v@accel += DirectionToNeighbour; ------------------------------------------------------------------ tips -- animate only speed with constant you can Combine with files from jhorikawa Dude.. for the momment working on predator and Ants (sim)

If you have a time to Change your avatar Please post your File with displacement

different projection ....learning sharing projectionLearn.hipnc

maybe it Helps sample1.hiplc

@Follyx Contour line 0.5 int drawLine(vector f; vector t){ int base=addpoint(0,f); int to=addpoint(0,t); int line=addprim(0,"polyline",base,to); return line; } //----------------------------- int read=0; if(npoints(1)>0){ read=1; } int maxLines=chi("maxLineCount"); float minLen=chf("minLineLength"); int pts[]=pcfind(read,"P",v@P,chf("maxLineLength"),chi("maxFindCount")); int randomConnect=chi("randomConnect"); int keepPointCount=min(1, max(0,chi("keepPointCount"))); int runner=0; vector curPos; int pt; if(randomConnect == 0){ for(int x=0; x<len(pts);++x){ pt=pts[x]; if(runner > maxLines){ break; } curPos=attrib(read,"point", "P", pt); if(length(curPos-v@P)>minLen && (@ptnum<pt || read)){ if(keepPointCount){ int to=pt; if(read){ to=addpoint(0,curPos); } addprim(0,"polyline",@ptnum,to); }else{ drawLine(v@P,curPos); } runner++; } } }else{ int l=len(pts); float fl=float(l); int rander=pts[int(random(@ptnum*fl+randomConnect)*fl*fl) % l]; curPos=attrib(read,"point", "P", rander); if(keepPointCount){ int to=rander; if(read){ to=addpoint(0,curPos); } addprim(0,"polyline",@ptnum,to); }else{ drawLine(v@P,curPos); } } Have Fun investigate

https://a124.borndigital.jp/houdini/houdini_tips/201703houdinivex.html Learned Something NIce tricks and setups..(Morphing Filet VEx nice stuff) for Lazy peoples Snippets Combining with this Cop setups Olalalalaal //MOrph Blend float A = prim(0,"perimeter",@primnum); float B = prim(1,"perimeter",@primnum); float C = prim(2,"perimeter",@primnum); float T = A +B + C ; float Au = A/T; float Bu= B/T; float Cu = C/T; @Au =Au; @Bu = Bu; @Cu = Cu; float offset = fit01(chf("offset"),0,Au+Bu); int i, pt; int pts[] = primpoints(0, @primnum); foreach (i, pt; pts){ float localu = 1.0/ (len(pts)-1)*i; float offsetu = localu *Au +offset ; if (offsetu > Au+Bu){ float setu = ( offsetu- (Au+Bu)) / Cu; vector setp = primuv(2,"P",@primnum,setu); setpointattrib(0,"P",pt,setp,"set"); } else if (offsetu> Au ){ float setu = (offsetu -Au)/Bu; vector setp = primuv(1,"P",@primnum,setu); setpointattrib(0,"P",pt,setp,"set"); }else{ float setu = offsetu /Au; vector setp= primuv(0,"P",@primnum,setu); setpointattrib(0,"P",pt,setp,"set"); } } //Duplicate int points[]= primpoints (0,@primnum); int pcount = len(points); int nmax = chi("duplicate"); for (int n = 0; n < nmax ; n++){ int prim = addprim(0, "polyline"); float primof= fit01(rand(prim+chf("rand")),1,pcount); for (int i = 0; i <= pcount;i++){ int offset = int( i +primof ) % pcount; vector pos = point(0, "P", points[offset]); int point = addpoint(0,pos); addvertex(0,prim,point); } } removeprim(0,@primnum,1); //Offset tangents int points[]= primpoints(0,@primnum); for (int i = 0; i< len(points); i ++) { int ptnum = points[i]; vector pos = point (0,"P", ptnum); vector tv = normalize(point(0,"tangentv",ptnum)); vector posB = pos + tv * chf("scale"); vector blend = pos + (posB -pos) *rand(@primnum); setpointattrib (0,"P",ptnum,blend,"set"); } Endless Control ..Have Fun

That was just Hints ...you can use those with

yess something different and creative ..Love it

@range = @ptnum/(@numpt - 1.0); min max curvature (Lab- min max average) @curvature = fit(@curvature, detail(0, "min_curvature"), detail(0, "max_curvature"), 0, 1); @curvature = chramp("curvature", @curvature);

Have Fun reading (with files) https://dl.acm.org/doi/abs/10.1145/2897824.2925963

Have Fun. some Nice Tricks and Files ..Thanks (Asia Students ). click on the right Menu to download files .. https://trello.com/b/7ftxZclJ/houdiniゆるゆる会

I have that by Default ..strange Play with the file Have FUn I can t find that results now ..its there just play DsExpand copsrle.hiplc

float m = @mask; m = m*10; m = clamp(m,0,1); @mask = m; plus play with expand COp I learned something Ds.hiplc DsExpand cop.hiplc

vector _ndc = toNDC("/obj/cam1", @P); float _ox=ch("ox"); float _oy=ch("oy"); float _oz=ch("oz"); if ((_ndc[0]<0-_ox)||(_ndc[0]>1+_ox)) removepoint(geoself(), @ptnum); if ((_ndc[1]<0-_oy)||(_ndc[1]>1+_oy)) removepoint(geoself(), @ptnum); if ((_ndc[2]>0+_oz)) removepoint(geoself(), @ptnum);

Now when I have everything for better learning (Nice PC-config -first H18 indie version) just happy. Having fun with solvers ..(must learn to combine somehow forces) trying to learn more about solvers ..(fishes- predators- ants -birds -etc-- https://www.red3d.com/cwr/boids/ https://nccastaff.bournemouth.ac.uk/jmacey/MastersProjects/MSc13/08/_assets/i7784427_TusharK_Thesis.pdf