Make Batch Images node add alpha channel when one of the inputs has it (#10816)

* When one Batch Image input has alpha and one does not, add empty alpha channel

* Use torch.nn.functional.pad
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Jedrzej Kosinski 2025-11-20 14:42:46 -08:00 committed by GitHub
parent f5e66d5e47
commit 9e00ce5b76
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@ -1853,9 +1853,10 @@ class ImageBatch:
def batch(self, image1, image2):
if image1.shape[-1] != image2.shape[-1]:
channels = min(image1.shape[-1], image2.shape[-1])
image1 = image1[..., :channels]
image2 = image2[..., :channels]
if image1.shape[-1] > image2.shape[-1]:
image2 = torch.nn.functional.pad(image2, (0,1), mode='constant', value=1.0)
else:
image1 = torch.nn.functional.pad(image1, (0,1), mode='constant', value=1.0)
if image1.shape[1:] != image2.shape[1:]:
image2 = comfy.utils.common_upscale(image2.movedim(-1,1), image1.shape[2], image1.shape[1], "bilinear", "center").movedim(1,-1)
s = torch.cat((image1, image2), dim=0)