konstantin magnus

Hi Robert, it seems he animated a Voronoi diagram: int pts[] = nearpoints(1, v@P, 1.0, 2); vector pos_0 = point(1, 'P', pts[0]); vector pos_1 = point(1, 'P', pts[1]); float d_0 = distance(pos_0, v@P); float d_1 = distance(pos_1, v@P); float d = d_1 - d_0; d_0 is the distance for driving the growing circles and d is the distance to the cell boundaries. https://procegen.konstantinmagnus.de/voronoi-diagram-reveal voronoi_reveal.hipnc

Is there any way to make the clip SOP not fuse both parts? Or do we have to deal with splitting up its above- and below-groups each time?

Sorry Matt, I accidently set it to 'draft'. It should be available now. It's just a for loop iterating over the vdb resample-node.

Hi @bentraje, you could map the surface curvature to the height field. The erosion of the landscape can then be transferred back for displacement. https://procegen.konstantinmagnus.de/height-field-erosion-on-meshes

Iteratively resampling a voxel field and visualizing the VDB tree as cubes might also be an option: https://procegen.konstantinmagnus.de/cubify-meshes

Hi Vincent, it seems to work on my side. Did you fill the image paths?

Hi Burton, I've attached a more intuitive non-VEX solution. It's basically the same thing. Let us know if you have any questions. laser_cutting_SOPs.hipnc

You could create a curveu attribute and add the primitive number to it. This does not consider varying curve lengths though. ap_km_etch_font_into_grid_u.hipnc

Hi Burton, you could also use the clip node driven by the distance towards the curve along with a time mask for cutting: https://procegen.konstantinmagnus.de/plasma-cutting-along-curve

Hi Mark, attribute copy + transform by attribute should get you there.

Hi Naim, you could displace grids and stick them to a sweeped curve: hair_microscopic.hip

A simple way to render outlines right in SOPs. outlines.hiplc

I've just posted a written article explaining the same technique: https://procegen.konstantinmagnus.de/render-cartoon-outlines-in-sops

I have just published the same article on my procedural generation page: https://procegen.konstantinmagnus.de/cubic-uv-projection-in-vex

https://www.sidefx.com/docs/houdini/nodes/sop/circlefromedges.html

The connectivity node can split meshes based upon UV seams which should make removing inside surfaces easier. remove_inside.hipnc

.. perhaps like so: array_near_prims.hipnc

The triangulate2D node can redraw the outline of the plate. And match-size is good for replacing parts. simplify.hipnc

Hi Tobias, would you be allowed to upload an example of the imported data?

Usually with a point grid and the Ray SOP. pin_art.hip

Hi alxtop, beveling a quad patch after removing some polygons: Beveling a quad patch after cutting some polygons: gun.hipnc

Match size another grid to it if it's a rectangle. match_size_grid.hiplc

UVcoords - UVxform - Shader

Hi Rival, here are some ways to connect copied points by their ID. Use the enumerate SOP to give each point an individual ID before copying. Non-VEX: Add SOP: Polygons > By group > By attribute: id H-Script + VEX: Grid set to rows: // HScript expressions for grid resolution nuniquevals('../copy1', D_POINT, 'id') nuniquevals('../copy1', D_PRIMITIVE, 'copynum') // point wrangle for connecting int index = vertexprimindex(0, i@vtxnum); int pt_crv = findattribval(1, 'point', 'id', i@primnum, index); v@P = point(1, 'P', pt_crv); VEX: // detail wrangle int num = nuniqueval(0, 'point', 'id'); for(int i = 0; i < num; i++){ int pts[] = {}; int count = findattribvalcount(0, 'point', 'id', i); for(int k = 0; k < count; k++){ int pt = findattribval(0, 'point', 'id', i, k); append(pts, pt); } int prim_crv = addprim(0, 'polyline', pts); setprimgroup(0, 'connect', prim_crv, 1, 'set'); } nuniqueval() returns how many IDs exist in total findattribvalcount() returns the number of points that share the same ID findattribval() returns the point number of each member with the same ID connect_ids.hiplc