auto branching function

latent_blending.py

@@ -1030,6 +1030,8 @@ def get_time(resolution=None):
 def get_branching(
         quality: str = 'medium',
         depth: str = 'medium',
+        strength_injection_first: float = 0.65,
+        nmb_frames: int = 360,
     ):
     r"""
     Helper function to set up the branching structure automatically.
@@ -1043,9 +1045,15 @@ def get_branching(
             Deeper injections will cause (unwanted) formation of new structures,
             more shallow values will go into alpha-blendy land
             Choose: verydeep, deep, medium, shallow, veryshallow
+        strength_injection_first: float = 0.65,
+            ...
+        nmb_frames: int = 360,
+
     """ 
     nmb_mindist = 3 #minimum distance between injections
-    
+    depth = 'override'
+    #FIXME: XXX nmb frames last has to be enforced. avoid weird cases where no injection...
+
     if depth == 'verydeep':
         strength_injection_first = 0.35
     elif depth == 'deep':
@@ -1056,27 +1064,29 @@ def get_branching(
         strength_injection_first = 0.8
     elif depth == 'veryshallow':
         strength_injection_first = 0.9
-    else: 
-        raise ValueError("depth = '{depth}' not supported")
-    
-    if quality == 'fast':
-        num_iterations = 15
-        nmb_branches_final = 6
+
+        
+    if quality == 'superfast':
+        num_inference_steps = 8
+        nmb_branches_final = 5
+    elif quality == 'fast':
+        num_inference_steps = 15
+        nmb_branches_final = nmb_frames//30
     elif quality == 'medium':
-        num_iterations = 30
-        nmb_branches_final = 30
+        num_inference_steps = 30
+        nmb_branches_final = nmb_frames//10
     elif quality == 'high':
-        num_iterations = 60
-        nmb_branches_final = 150
+        num_inference_steps = 60
+        nmb_branches_final = nmb_frames//3
     elif quality == 'ultra':
-        num_iterations = 100
-        nmb_branches_final = 300
+        num_inference_steps = 100
+        nmb_branches_final = nmb_frames
     else: 
         raise ValueError("quality = '{quality}' not supported")
     
-    idx_injection_first = int(np.round(num_iterations*strength_injection_first))
-    idx_injection_last = num_iterations - 3
-    nmb_injections = int(np.floor(num_iterations/5)) - 1
+    idx_injection_first = int(np.round(num_inference_steps*strength_injection_first))
+    idx_injection_last = num_inference_steps - 3
+    nmb_injections = int(np.floor(num_inference_steps/5)) - 1
     
     list_injection_idx = [0]
     list_injection_idx.extend(np.linspace(idx_injection_first, idx_injection_last, nmb_injections).astype(int))
@@ -1091,12 +1101,14 @@ def get_branching(
             list_injection_idx_clean.append(list_injection_idx[i+1])
             list_nmb_branches_clean.append(list_nmb_branches[i+1])
             idx_last_check +=1 
-    
-    print(f"num_iterations: {num_iterations}")
+    list_injection_idx_clean = [int(l) for l in list_injection_idx_clean]
+    list_nmb_branches_clean = [int(l) for l in list_nmb_branches_clean]
+
+    print(f"num_inference_steps: {num_inference_steps}")
     print(f"list_injection_idx: {list_injection_idx_clean}")
     print(f"list_nmb_branches: {list_nmb_branches_clean}")
     
-    return list_injection_idx_clean, list_nmb_branches_clean
+    return num_inference_steps, list_injection_idx_clean, list_nmb_branches_clean
 
 #%% le main
 if __name__ == "__main__":