Compensate UV and noise value on piece with very different aspect ration

[vinyvince]

Dealing with thousand pieces , some with extreme aspect ration and a quick weird shape as start... Just wondering, what will be the best way to distribute the noise and UV to compensate this?

something like orient the bounding box as best as possible, measure the max and min of bounding box, get the ratio from the two, use this as a attribute... ?

 

cheers

 

________________________________________________________________

Vincent Thomas   (VFX and Art since 1998)
Senior Env and Lighting  artist & Houdini generalist & Creative Concepts
 http://fr.linkedin.com/in/vincentthomas

[Librarian]

int dim = chi("dim");
int npt = chi("npt");
vector pos ;
vector prev_pos;
int  prev_prim;
vector dir;
vector uv;
vector prim_pos;
float dist;
float min_dist = 0.5;
float max_dist = length({0.5,0.5,0});
int pt;
int prim;

for(int j;j<dim*dim;j++){
    prim_pos = set(j%dim,j/dim);
    prim = addprim(0,"polyline");
    
    for (int i;i<npt;i++){
    pos=lspline(i/float(npt-1),{0,0,0},{0,1,0},{1,1,0},{1,0,0},{0,0,0});
    dist = length(pos-{0.5,0.5,0});
    dist= smooth(min_dist,max_dist,dist,ch("rolloff"));
    dist =fit01(dist,0.5,0);
    dir = normalize ({0.5,0.5,0}-pos);
    pos += dist *dir;
    pos += prim_pos;
    uv = pos/(dim-1);
    pos = uvsample(1,"P","uv",uv);
    
    
    dist = distance(pos,prev_pos);
        if(dist>1 && prev_prim == prim){
        
                prim = addprim(0,"polyline");
                }
                
                else {
                
                pt = addpoint(0,pos);
                addvertex(0,prim,pt);
                prev_pos = pos;
                prev_prim = prim;
                
                }
                
        }
        
        
 }       

attribtransferbyuv

[vinyvince]

Thanks Tesan i will give a try. If UV is only the concern, not to make uniform other details method of your own, lab texture texel density is handy