Matt Vitalone

Matt Vitalone

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Technical Director
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United States
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Recent Forum Posts

Interactivity for Houdini Engine in Unreal 4.22 July 9, 2019, 7:10 p.m.

Hi,
I asked some developers a while back about the discrepancy between interactive performance in Houdini Engine for Unreal vs. other implementations like Unity and Maya. Unreal was far far slower. I was told that the mesh rendering enhancements in Unreal 4.22 would allow Houdini Engine for Unreal to have parity with the other implementations. I've started testing HE in UE4.22 and it does seem much faster than before, but it still doesn't have the interactivity of the other implementations. You can't see meshes update as you are adjusting parameter sliders. It seems like it's locked into “On Mouse Up” type update mode. Is that the expected behavior? Dialing in your values without any visual feedback is still a major disadvantage vs the Unity and Maya versions of Houdini Engine.

GameDev LOD create SOP suggestion for seamless LODs April 24, 2019, 2:28 p.m.

Do you ever get any artifacts when the difference between the low LOD normals (projected onto the high res model) and the high res normals are so large they can't be effectively captured by the normal map?

Triggering Maya Python or MEL from a Houdini Engine Asset button callback May 4, 2018, 12:58 p.m.

Does anyone know if this is possible? I want to save out a multi-frame ROP of a rigid body simulation, but it doesn't work if you just tell the ROP to do a frame range as Maya doesn't send it updated data for each frame, just on the one where the cook is called (https://www.sidefx.com/forum/topic/45488/). I wrote a script in Maya to go through frame by frame and write the ROP one frame at a time, but I would like to be able to launch this script from one of the buttons on my Houdini Asset rather than having an external button to do it. I've tried importing maya.cmds into python on a Houdini button callback but none of the commands I call from it seem to do anything in Maya.