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Ensure all tensors in GaussianRasterizer's raster_settings are on the same device #65

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Ensure all tensors in GaussianRasterizer's raster_settings are on the same device #65

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9 changes: 9 additions & 0 deletions diff_gaussian_rasterization/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -172,6 +172,15 @@ class GaussianRasterizer(nn.Module):
def __init__(self, raster_settings):
super().__init__()
self.raster_settings = raster_settings
self._sanitizeSettings()

def _sanitizeSettings(self):
# Check if all tensors in raster_settings is on same device
compute_devices = [_x.device for _x in self.raster_settings if isinstance(_x, torch.Tensor)]
if len(set(compute_devices)) > 1:
raise Exception('All tensors in raster_settings should be on the same device.')
if any([d == torch.device('cpu') for d in compute_devices]):
raise Exception('CUDA device is required for the rasterizer.')

def markVisible(self, positions):
# Mark visible points (based on frustum culling for camera) with a boolean
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