boby

Hi Simon, Use the node "isfrontface" to switch between your materials http://www.sidefx.com/docs/houdini/nodes/vop/isfrontface boby

Take a look at the Rivet tool http://www.sidefx.com/docs/houdini/nodes/obj/rivet boby

Default is to align copy's Z axis to point normal. -To align your line, build it align with z > direction = (0,0,1), instead of (1,0,0) -same thing for your sphere, stretch it in world Z axis boby

Display pref are not stored in hip file. Here loading your file doesn't display point.. Some possible solution: -uncheck point display (right menu bar in viewport) -maximise another view (i.e network view) to refresh Gl drawing -close your scene view and open a new one (should already be fixed now..) -close/reOpen houdini..

hi messipte, i guess you want to rotate it along the branch? here is a simple hip file. degtorad node let you rotate vector by an angle in degree, feel free to replace it with any random point value If you want to rotate it in other random direction, you can use any random vector per point instead of t. boby rot_vec.hipnc

Uncheck maximum segment length and set your maximum segment to 799 (or 800 if it's a closed curve) boby

Should be in Pz, not sure how it can't be.. Any hip file to share?

Amplitude is in world unit. As your sphere is 20m radius it needs a big amplitude to be effective. A smaller sphere would need less amplitude

Hey dunken, here it is: - I added nodes under yours in the vop - i made a similiar setup using vdb (on the right). It's often the best way to deal with volume (faster and lighter) boby vol_disp.hipnc

Hi logix! Put the timeblend before the delete SOP boby

Hey! Simply put @P in a vec volume Cd boby Vol_color.hip

Hey! Atom's Solution is quicker but as you are using polygon, i'm assuming you want the average position of your HR model to be taken into account in the distance calculation. Here is your scene modified to get it work (using vops too). Distance.hipnc

Hello ! I'm trying to understand the difference between Time scaling a Sim at DOP level vs Solver level. Basically i understood that DOP timescale will act on everything inside it (substepping every solver accordingly) whereas Solver scale time will only influence 'this' solver locally. This idea in mind, i tried to get similar result on a basic Flip Sim with both method (setting 0.5 for dop timeScale or for flip solver Scale Time). After lot's of test (messing with substepping, CFL etc), i was not able to get similar result and can't understand why :/ ! Here is the simplistic scene with only the timescale and scaletime modified. Can you get both sim to correspond exactly (get the same collision behaviour)? Or is there any reason both sim can't be identical? Thanks in advance! QFlip.hipnc

Check if - you activated refraction in your shader (+ refract objects) - have a refract roughness < 1 - Are you using raytrace/PBR? - mantra>rendering>limits>refract limit >= 2 - can render visibility is * (not only primary) hope it helps !

Atom, was speaking about MDD rops as f1480187 said . Works perfectly well for blender. @Mandrake0: Nice initiative you took with your exporter. Are you aware of the alembic branch being developped (first commit by a company called DwarfLabs). It's still under review but ll 'maybe' make it for next release and should add basic support for alembic i/o. Here is the diff if you wan't to build : https://developer.blender.org/D1783 Happy blending with houdini