Hello 
in my scene, i have a 3d model in the middle, HDRi for good lighting and reflections, and a reflective ground under the model. For the ground, I figured i would use MeshReflectorMaterial from the drei library; however im getting weird artifacts :
Playing around with the parameters of MeshReflectorMaterial can get rid of the artifacts; but even if you do so, adjusting the grounds metalness and roughness brings back the artifacts. I could ofcourse fix metalness and roughness to not get these artifacts, but i would like to give the user freedom to adjust and customize the grounds appearance.
The demos for MeshReflectorMaterial work fine but they dont use HDRi’s which is why im suspicious that it is the cause of the issue here. Anyone knows whats going on? Id like to hear your thoughts
I’ve made a sandbox which recreates the issue. Theres a button in the bottom for adjusting the grounds material. Thank you in advance!
Dependencies:
“@react-three/drei”: “^10.0.4”,
“@react-three/fiber”: “^9.1.0”,
“@react-three/postprocessing”: “^3.0.4”,
“leva”: “^0.10.0”,
“next”: “^15.2.1”,
“postprocessing”: “^6.37.1”,
“react”: “^19.0.0”,
“react-dom”: “^19.0.0”,
“three”: “^0.174.0”