rtcGetGeometry(3)

💖 rtcGetGeometry(3) 💖

okay bestie, come get your geometry handle — this is a page from the Embree Ray Tracing Kernels 4 manual, and we're gonna talk about the little lookup function that goes and fetches you a geometry. no cap, it's short and sweet. 🎀

✨ NAME ✨

rtcGetGeometry</purgle> — returns the geometry bound to the specified geometry ID 🦋

✨ SYNOPSIS ✨

#include <embree4/rtcore.h>

RTCGeometry rtcGetGeometry(RTCScene scene, unsigned int geomID);

like... that's it. one include, one function, we love a minimal moment. 💅

✨ DESCRIPTION ✨

So rtcGetGeometry gives you back the geometry that's bound to a specific geometry ID (that's the geomID argument, bestie) inside a specific scene (that's the scene argument 🌸).

⚠️ important thing: this function just looks up the handle and does not increment the reference count. so if you actually want to own that handle, you gotta go call rtcRetainGeometry too. don't forget, or the vibe check will fail later 😭

Also — and this is the part people always get wrong — this function is not thread safe, so yes, it can be used during rendering, but honestly? the general recommendation is to just store the geometry handle inside your application's geometry representation and look up the geometry handle from that representation directly. way cleaner, way faster, way more main character energy 👑

If you genuinely need a thread safe version of this function, please use [rtcGetGeometryThreadSafe]. that one's got you 🫶

✨ EXIT STATUS ✨

If it fails, NULL is returned, and an error code gets set that you can go query using rtcGetDeviceError. so check for that NULL, bestie, it's giving red flag 🚩

✨ SEE ALSO ✨

• [rtcAttachGeometry]
• [rtcAttachGeometryByID]
• [rtcGetGeometryThreadSafe]

and that's the whole page, periodt 💜 this was rtcGetGeometry(3) from the Embree Ray Tracing Kernels 4 manual — go forth, look up your geometries, and stay thread safe out there 🧚✨💖