Only powers of 2 work for width/height, not multiples of 8

[jonahclarsen]

Hi there,

I am having trouble generating images with width/heights other than powers of 2. Using the fix mentioned in #1, I can generate images with different dimensions than 512x512, but only 256x256 and 128x128 have worked for me so far.

When I use 248x248 (a multiple of 8) as the width/height, I get the following error:

Generating 1. image.
0it [00:01, ?it/s]
Traceback (most recent call last):
...
File "C:\...\Anaconda3\envs\sd_playground\lib\site-packages\diffusers\models\unet_blocks.py", line 1034, in forward
hidden_states = torch.cat([hidden_states, res_hidden_states], dim=1)
RuntimeError: Sizes of tensors must match except in dimension 1. Expected size 32 but got size 31 for tensor number 1 in the list.

For 224x224 (a multiple of 32), I get a similar error but ending in this instead:

RuntimeError: Sizes of tensors must match except in dimension 1. Expected size 8 but got size 7 for tensor number 1 in the list.

Any help would be greatly appreciated.

Also, I keep getting NSFW content detected at low resolutions (especially 128x128), even with the default prompt. Is there a way to disable the NSFW filter?

[jonahclarsen]

For some reason, as I mentioned in #5, I was able to do 640x512 as well, but not 648x512. So maybe it needs to be a multiple of 128 rather than 8...