Squashed commit of the following:

commit 7d1344282d942a33dcecda4d5144fc154ec82915
Merge: caf4ea3 ebeb556
Author: Lincoln Stein <[email protected]>
Date:   Mon Sep 5 10:07:27 2022 -0400

    Merge branch 'development' of github.com:WebDev9000/stable-diffusion into WebDev9000-development

commit ebeb556
Author: Web Dev 9000 <[email protected]>
Date:   Sun Sep 4 18:05:15 2022 -0700

    Fixed unintentionally removed lines

commit ff2c4b9
Author: Web Dev 9000 <[email protected]>
Date:   Sun Sep 4 17:50:13 2022 -0700

    Add ability to recreate variations via image click

commit c012929
Author: Web Dev 9000 <[email protected]>
Date:   Sun Sep 4 14:35:33 2022 -0700

    Add files via upload

commit 02a6018
Author: Web Dev 9000 <[email protected]>
Date:   Sun Sep 4 14:35:07 2022 -0700

    Add files via upload

Author: lstein

ldm/dream/server.py

@@ -75,13 +75,39 @@ def do_POST(self):
         seamless = 'seamless' in post_data
         cfgscale = float(post_data['cfgscale'])
         sampler_name  = post_data['sampler']
+        variation_amount = float(post_data['variation_amount'])
+        with_variations = post_data['with_variations']
         gfpgan_strength = float(post_data['gfpgan_strength']) if gfpgan_model_exists else 0
         upscale_level    = post_data['upscale_level']
         upscale_strength = post_data['upscale_strength']
         upscale = [int(upscale_level),float(upscale_strength)] if upscale_level != '' else None
         progress_images = 'progress_images' in post_data
         seed = self.model.seed if int(post_data['seed']) == -1 else int(post_data['seed'])
 
+        if with_variations != '':
+            parts = []
+            broken = False
+            for part in with_variations.split(','):
+                seed_and_weight = part.split(':')
+                if len(seed_and_weight) != 2:
+                    print(f'could not parse with_variation part "{part}"')
+                    broken = True
+                    break
+                try:
+                    vseed = int(seed_and_weight[0])
+                    vweight = float(seed_and_weight[1])
+                except ValueError:
+                    print(f'could not parse with_variation part "{part}"')
+                    broken = True
+                    break
+                parts.append([vseed, vweight])
+            if broken:
+                raise CanceledException
+            if len(parts) > 0:
+                with_variations = parts
+            else:
+                with_variations = None
+
         self.canceled.clear()
         print(f">> Request to generate with prompt: {prompt}")
         # In order to handle upscaled images, the PngWriter needs to maintain state
@@ -163,6 +189,8 @@ def image_progress(sample, step):
                                         height = height,
                                         seed = seed,
                                         steps = steps,
+                                        variation_amount = variation_amount,
+                                        with_variations = with_variations,
                                         gfpgan_strength = gfpgan_strength,
                                         upscale         = upscale,
                                         sampler_name    = sampler_name,
@@ -184,6 +212,8 @@ def image_progress(sample, step):
                                             cfg_scale  = cfgscale,
                                             seed       = seed,
                                             steps      = steps,
+                                            variation_amount = variation_amount,
+                                            with_variations = with_variations,
                                             sampler_name    = sampler_name,
                                             width      = width,
                                             height     = height,

static/dream_web/index.css

@@ -125,6 +125,9 @@ label {
 #txt2img {
     background-color: #DCDCDC;
 }
+#variations {
+    background-color: #EEEEEE;
+}
 #img2img {
     background-color: #F5F5F5;
 }

static/dream_web/index.html

@@ -23,7 +23,7 @@ <h1>Stable Diffusion Dream Server</h1>
           <div id="search-box">
             <textarea rows="3" id="prompt" name="prompt"></textarea>
             <input type="submit" id="submit" value="Generate">
-          </div>
+	  </div>
         </fieldset>
         <fieldset id="fieldset-config">
           <label for="iterations">Images to generate:</label>
@@ -40,7 +40,7 @@ <h1>Stable Diffusion Dream Server</h1>
             <option value="k_dpm_2">KDPM_2</option>
             <option value="k_dpm_2_a">KDPM_2A</option>
             <option value="k_euler">KEULER</option>
-            <option value="k_euler_a">KEULER_A</option>
+	    <option value="k_euler_a">KEULER_A</option>
             <option value="k_heun">KHEUN</option>
           </select>
           <input type="checkbox" name="seamless" id="seamless">
@@ -68,23 +68,28 @@ <h1>Stable Diffusion Dream Server</h1>
             <option value="832">832</option> <option value="896">896</option>
             <option value="960">960</option> <option value="1024">1024</option>
           </select>
-
           <label title="Set to -1 for random seed" for="seed">Seed:</label>
           <input value="-1" type="number" id="seed" name="seed">
           <button type="button" id="reset-seed">&olarr;</button>
           <input type="checkbox" name="progress_images" id="progress_images">
-          <label for="progress_images">Display in-progress images (slower):</label>
-          <button type="button" id="reset-all">Reset to Defaults</button>
-        </fieldset>
-	<fieldset id="img2img">
-	  <label title="Upload an image to use img2img" for="initimg">Initial image:</label>
-	  <input type="file" id="initimg" name="initimg" accept=".jpg, .jpeg, .png">
-	  <button type="button" id="remove-image">Remove Image</button>
-	  <br>
-	  <label for="strength">Img2Img Strength:</label>
-	  <input value="0.75" type="number" id="strength" name="strength" step="0.01" min="0" max="1">
-	  <input type="checkbox" id="fit" name="fit" checked>
-	  <label title="Rescale image to fit within requested width and height" for="fit">Fit to width/height:</label>
+	  <label for="progress_images">Display in-progress images (slower)</label>
+	  <button type="button" id="reset-all">Reset to Defaults</button>
+	  <div id="variations">
+            <label title="If > 0, generates variations on the initial seed instead of random seeds per iteration. Must be between 0 and 1. Higher values will be more different." for="variation_amount">Variation amount (0 to disable):</label>
+            <input value="0" type="number" id="variation_amount" name="variation_amount" step="0.01" min="0" max="1">
+            <label title="list of variations to apply, in the format `seed:weight,seed:weight,..." for="with_variations">With variations (seed:weight,seed:weight,...):</label>
+            <input value="" type="text" id="with_variations" name="with_variations">
+	  </div>
+	  <div id="img2img">
+            <label title="Upload an image to use img2img" for="initimg">Initial image:</label>
+            <input type="file" id="initimg" name="initimg" accept=".jpg, .jpeg, .png">
+            <button type="button" id="remove-image">Remove Image</button>
+	    <br>
+	    <label for="strength">Img2Img Strength:</label>
+	    <input value="0.75" type="number" id="strength" name="strength" step="0.01" min="0" max="1">
+	    <input type="checkbox" id="fit" name="fit" checked>
+	    <label title="Rescale image to fit within requested width and height" for="fit">Fit to width/height:</label>
+	  </div>
 	</fieldset>
         <fieldset id="gfpgan">
           <label title="Strength of the gfpgan (face fixing) algorithm." for="gfpgan_strength">GPFGAN Strength (0 to disable):</label>
@@ -105,7 +110,7 @@ <h1>Stable Diffusion Dream Server</h1>
           <progress id="progress-bar" value="0" max="1"></progress>
           <span id="cancel-button" title="Cancel">&#10006;</span>
           <br>
-          <img id="progress-image" src='data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg"/>'></img>
+          <img id="progress-image" src='data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg"/>'>
           <div id="scaling-inprocess-message">
             <i><span>Postprocessing...</span><span id="processing_cnt">1/3</span></i>
           </div>

static/dream_web/index.js

@@ -25,10 +25,25 @@ function appendOutput(src, seed, config) {
     figcaption.addEventListener('click', () => {
         let form = document.querySelector("#generate-form");
         for (const [k, v] of new FormData(form)) {
-	    if (k == 'initimg') { continue; }
-	    form.querySelector(`*[name=${k}]`).value = config[k];
+            if (k == 'initimg') { continue; }
+            form.querySelector(`*[name=${k}]`).value = config[k];
+        }
+        if (config.variation_amount > 0 || config.with_variations != '') {
+            document.querySelector("#seed").value = config.seed;
+        } else {
+            document.querySelector("#seed").value = seed;
+        }
+
+        if (config.variation_amount > 0) {
+            let oldVarAmt = document.querySelector("#variation_amount").value
+            let oldVariations = document.querySelector("#with_variations").value
+            let varSep = ''
+            document.querySelector("#variation_amount").value = 0;
+            if (document.querySelector("#with_variations").value != '') {
+                varSep = ","
+            }
+            document.querySelector("#with_variations").value = oldVariations + varSep + seed + ':' + config.variation_amount
         }
-        document.querySelector("#seed").value = seed;
 
         saveFields(document.querySelector("#generate-form"));
     });