From c04f9697731cd5127ff424b2124b13396ec51e1c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Vital?= <mugulmotion@gmail.com>
Date: Mon, 10 Jul 2023 17:00:02 +0200
Subject: [PATCH 1/2] [blender] preview: fix first chunk behaviour

---
 meshroom/nodes/blender/scripts/preview.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/meshroom/nodes/blender/scripts/preview.py b/meshroom/nodes/blender/scripts/preview.py
index ef32b337df..e9e7a2758e 100644
--- a/meshroom/nodes/blender/scripts/preview.py
+++ b/meshroom/nodes/blender/scripts/preview.py
@@ -23,11 +23,11 @@ def createParser():
         help="sfmData with the animated camera.",
     )
     parser.add_argument(
-        "--rangeStart", type=int, required=False,
+        "--rangeStart", type=int, required=False, default=-1,
         help="Range start for processing views. Set to -1 to process all views.",
     )
     parser.add_argument(
-        "--rangeSize", type=int, required=False,
+        "--rangeSize", type=int, required=False, default=0,
         help="Range size for processing views.",
     )
     parser.add_argument(
@@ -321,8 +321,8 @@ def main():
         setupPointCloudShading(sceneObj, color, args.particleSize)
 
     print("Retrieve range")
-    rangeStart = args.rangeStart if args.rangeStart else -1
-    rangeSize = args.rangeSize if args.rangeSize else -1
+    rangeStart = args.rangeStart
+    rangeSize = args.rangeSize
     if rangeStart != -1:
         if rangeStart < 0 or rangeSize < 0 or rangeStart > len(views):
             print("Invalid range")

From 2d6d87cad13490c49aefc6fb67ef6121c9197e4a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Vital?= <mugulmotion@gmail.com>
Date: Mon, 10 Jul 2023 17:54:12 +0200
Subject: [PATCH 2/2] [nodes] ScenePreview: increase block size to 40

---
 meshroom/nodes/blender/ScenePreview.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meshroom/nodes/blender/ScenePreview.py b/meshroom/nodes/blender/ScenePreview.py
index e002c2fc15..fb39467e5e 100644
--- a/meshroom/nodes/blender/ScenePreview.py
+++ b/meshroom/nodes/blender/ScenePreview.py
@@ -8,7 +8,7 @@
 class ScenePreview(desc.CommandLineNode):
     commandLine = '{blenderCmdValue} -b --python {scriptValue} -- {allParams}'
     size = desc.DynamicNodeSize('cameras')
-    parallelization = desc.Parallelization(blockSize=10)
+    parallelization = desc.Parallelization(blockSize=40)
     commandLineRange = '--rangeStart {rangeStart} --rangeSize {rangeBlockSize}'
 
     category = 'Utils'