From 953c3eab7b3b952f7e96d728413a531d7fb521a2 Mon Sep 17 00:00:00 2001
From: AUTOMATIC1111 <16777216c@gmail.com>
Date: Mon, 21 Aug 2023 15:54:30 +0300
Subject: forbid Full live preview method for medvram and add a setting to undo
 the forbidding

---
 modules/sd_samplers_common.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'modules/sd_samplers_common.py')

diff --git a/modules/sd_samplers_common.py b/modules/sd_samplers_common.py
index feb1a9db..60fa161c 100644
--- a/modules/sd_samplers_common.py
+++ b/modules/sd_samplers_common.py
@@ -35,10 +35,15 @@ approximation_indexes = {"Full": 0, "Approx NN": 1, "Approx cheap": 2, "TAESD":
 
 
 def samples_to_images_tensor(sample, approximation=None, model=None):
-    '''latents -> images [-1, 1]'''
+    """Transforms 4-channel latent space images into 3-channel RGB image tensors, with values in range [-1, 1]."""
+
     if approximation is None or (shared.state.interrupted and opts.live_preview_fast_interrupt):
         approximation = approximation_indexes.get(opts.show_progress_type, 0)
 
+        from modules import lowvram
+        if approximation == 0 and lowvram.is_enabled(shared.sd_model) and not shared.opts.live_preview_allow_lowvram_full:
+            approximation = 1
+
     if approximation == 2:
         x_sample = sd_vae_approx.cheap_approximation(sample)
     elif approximation == 1:
-- 
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