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CRUCIBLE — COOK HOUDINI HDAS AT KARMA RENDER TIME AS A NATIVE HYDRA SCENE INDEX

An open-source Hydra scene index plugin that cooks Houdini HDAs lazily at Karma render time. Author a CrucibleProcedural prim in USD and the referenced HDA is evaluated on Houdini's main thread, its output mesh injected into the Hydra scene — with no pre-cooking, no LOPs recook, and no HAPI session to manage.

HoudiniHDAKarmaUSDHydraScene IndexProceduralSolarisVFX PipelineOpen Source

Plattipus Research Lab

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A CrucibleProcedural prim cooking a Houdini HDA live in the Karma viewport

May 2026vfx pipeline

6 min read

CRUCIBLE — COOK HOUDINI HDAS AT KARMA RENDER TIME AS A NATIVE HYDRA SCENE INDEX

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Gaussian splat scene rendered natively inside Houdini Solaris via houdini_usd_gsplat

May 2026vfx pipeline

4 min read

HOUDINI_USD_GSPLAT — NATIVE 3D GAUSSIAN SPLAT RENDERING IN HOUDINI SOLARIS

An open-source native integration of 3D Gaussian Splatting into Houdini Solaris via a first-class USD schema, UsdImaging adapter, and CPU Hydra render delegate — bringing Gaussian splats into the USD scene graph as proper USD primitives with full Houdini LOP workflows.

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