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Enable GPU rendering #23

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Enable GPU rendering #23

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43f6961
enable GPU rendering
saswat0 Sep 6, 2025
67939a2
added serialization for float32
saswat0 Sep 6, 2025
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6 changes: 5 additions & 1 deletion data-gen/kubric/kubric/file_io.py
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Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,11 @@ class _NumpyEncoder(json.JSONEncoder):
def default(self, o):
if isinstance(o, np.ndarray):
return o.tolist()
return json.JSONEncoder.default(self, o)
elif isinstance(o, (np.floating,)):
return float(o)
elif isinstance(o, (np.integer,)):
return int(o)
return super().default(o)


def write_png(data: np.array, filename: PathLike) -> None:
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1 change: 1 addition & 0 deletions data-gen/kubric/kubric/renderer/blender.py
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Expand Up @@ -189,6 +189,7 @@ def use_gpu(self) -> bool:
def use_gpu(self, value: bool):
self.blender_scene.cycles.device = "GPU" if value else "CPU"
if value:
bpy.context.preferences.addons["cycles"].preferences.compute_device_type = "CUDA" # or "OPTIX"
# call get_devices() to let Blender detect GPU devices
bpy.context.preferences.addons["cycles"].preferences.get_devices()
devices_used = [d.name for d in bpy.context.preferences.addons["cycles"].preferences.devices
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