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About BlackPariah

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    Jack D.
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  1. Hello! Is the .obj export to other software disabled in Houdini apprentice 17? I'm just trying to export a simple grid geo for testing purposes. I tried the ROP geometry output, the Right click & Save Geometry method as well as the file node set to write mode & can't seem to open the file in either 3DS Max or Softimage. Max gives an error "nothing found to import..." and Softimage gives no error & loads nothing in the scene... so this has something to do with Houdini's obj export imo. The curious part is, I can import the .obj back into Houdini with the file node & it loads fine... I can also export .obj's from Max and Softimage & Houdini also opens them without problem so I don't understand what's happening... *EDIT*: The problem is resolved. Seems like the culprit was a pending system restart from Windows that updated a bunch of .NET framework versions. Exporting from/to Houdini now works without issue.
  2. Thank you Noobini The new constraint works in dops but it doesn't behave as expected... but regardless, that's a different problem. I mostly just wanted to know how to go about connecting 1 source point to many points and both your example are very helpful! Sepu: Also very helpful! Thank you guys!!
  3. Hello! I'm messing around with bullet constraint networks and I can't figure out how to connect a bunch of points to a single point... basically one source point and multiple paths from it towards each packed piece. Connect adjacent node doesn't have this behaviour. The idea is to connect a fractured packed geo with many points/parts to a non fractured packed geo that has just 1 point/part. I know this will requre some kind of wrangle & coding is not my strong point :| ... any help woud be appreciated! Thank you for your time I appreciate it! Attatched a simple scene, it's just missing the 2nd constraint network. polyline_constaint.hipnc
  4. Contract A Rope (Vellum)

    I'd look into the stiffness / stretchiness of the vellum material. IE: start the sim with the material stretched out with low stiffness & then increase it to squeeze/contract whatever it's wrapped on? I'm no expert by any means and I'm sure others will come up with better or more specific solutions
  5. Fix overlapping primitives (RESOLVED)

    Boolean Union did it!
  6. Hello! I got a very simple setup here... it's a cross shape with 2 primitives... one diagonal another vertical. How can I fuse/fix/clean this so there are no overlapping primitives? I tried clean/facet/divide/triangluate2d/polydoctor with no success... fix_overlapping.hipnc
  7. Snap transform handle to component

    I can also chose different alignment modes from the right click "Align Handle" menu once I'm happy with the new position of the handle right? So basically I first chose the desired position for the gizmo then use the Align Handle menu to chose the orientation & then finally do the transformation... does this seem like a good way to go about it? Edit: The " ' ; snap ' transform " flow is pretty decent! Thank you Tomas
  8. Snap transform handle to component

    OMG yea it works! I was going nuts with the myriad of modes and controls lol. SESI should really mention something about the insert key in the Snapping, Construction Plane & Alignment section of the help... or anywhere else relevant for that matter. I can't find any info about the insert key or the gizmo only mode... But regardless, thank you so much Noobini Saved me a headache
  9. Snap transform handle to component

    Just wanted to clarify: I'm looking at the "Snapping, construction plane, and alignment" section in the help and I cant figure out how to move/orient JUST the handle, without affecting the selected geometry I want to transform. I also tried the ; key for editing the align state... and again this moves my selected faces and the handle both at once... which is not what I want. It seems like no matter what I try, it moves/rotates my selection along with the handle instead of just the handle & let me manually transform with the handle's new position! Any help would be appreciated... :|
  10. Hello! I can't figure out how to use a point/edge/primitive on an object as the center of transformation for the transform handle... Moving the handle manually with the ' (apostrope) is not practical or convenient. Is there a way to make the handle snap to a specific object component & use it as the transformation center? Something like XSI's "Ref" menu where you can pick an object/point/edge/prim as the transformation center and the transform gizmo/handle moves and aligns itself with your selected component.
  11. Hello! I can't wrap my head around this one. I applied some random colors on the primitives with the default @Cd attribute & set the roughness to 0.1 on the principled shader. The colors show up and everything seems to work fine. BUT, just as a test, I tried to bind a custom roughness attribute with the same exact roughness values (0.1 on all primitives, just like it's set on the shader) and when I plug it in, the colors don't come through... I get a black & white render instead. I am lost as to why the shader/renderer is behaving this way... logically the outcome should be identical & I have no idea why the colors disappear. custom_shader_attribute.hipnc
  12. Hello! I can't figure out why the bind vop inside the material network will not grab a primitive float attribute from the geometry. I just made a simple float primitive attribute with some random values & want to use it as a roughness parameter on the principledshader material. *EDIT* Oops! Nevermind! it's working! By some luck I named the attribute "rough" which is the actual default attribute name for the shader's roughness... so it was reading the attribute directly without needing a bind vop.
  13. New PC only for Houdini

    It looks like Renderman will support raytracing acceleration with the Nvidia RTX cards! Probably other renderers might follow... So for rendering I think it would be worth waiting for RTX... and AMD gpu's are outclassed in this department. Speeding up Pyro & other sims that run on OpenCL is the only situation that might make AMD gpus somewhat useful... But I cannot recomment them just for that limited usefulness so please disregard my first reply.
  14. Channel parameter from a variable

    That's a bummer :| I was planning on using the output to drive parameters on other nodes (copy/paste relative reference etc..) I don't know anything about python... just learning vex is daunting enough for a non-programmer lol. But it's good to know that the functionality is missing at the moment. Does SESI have any plans to add it? Something like: ochf("parametername", myvariable); to output a float channel would be nice :s