Add VAE scaling and shift factor (#6)

- add scaling/shift factor and update dtype (f62a75d8684a451b3647d5bc252c075609b6ce52)

vae/config.json

@@ -24,7 +24,8 @@
   "norm_num_groups": 32,
   "out_channels": 3,
   "sample_size": 1024,
-  "scaling_factor": 0.13025,
+  "scaling_factor": 1.5305,
+  "shift_factor": 0.0609,
   "up_block_types": [
     "UpDecoderBlock2D",
     "UpDecoderBlock2D",

vae/diffusion_pytorch_model.safetensors

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d972e5c4aa354ca9eeee7517bd8b6a7da1c2df2cdf8d657723f689ca1ad65679
-size 335306212
+oid sha256:f1173613744f03c3c49b15fbf4a33829736931e1217aca4b1b11d2057a4581fd
+size 167666654