From 9b3f7fa1273c145d67357ada01dc249fba8ee2f2 Mon Sep 17 00:00:00 2001
From: Solal Depardieu <solaldep@hotmail.fr>
Date: Fri, 7 May 2021 13:24:11 +0200
Subject: [PATCH] [node] Adding a density factor to the render node

Added a numeral scale to the node to make the density rendering of the cloud of point more customisable...
---
 meshroom/nodes/blender/RenderAnimatedCamera.py   |  8 ++++++++
 meshroom/nodes/blender/scripts/camera_support.py | 16 ++++++++++++++--
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/meshroom/nodes/blender/RenderAnimatedCamera.py b/meshroom/nodes/blender/RenderAnimatedCamera.py
index 5f85aa84..b14dd4bb 100644
--- a/meshroom/nodes/blender/RenderAnimatedCamera.py
+++ b/meshroom/nodes/blender/RenderAnimatedCamera.py
@@ -39,6 +39,14 @@ class RenderAnimatedCamera(desc.CommandLineNode):
             value='',
             uid=[0],
         ),
+        desc.FloatParam(
+            name='cloudPointDensity',
+            label='Cloud Point Density',
+            description='''Number of point from the cloud rendered''',
+            value=0.50,
+            range=(0.01, 0.75, 0.01),
+            uid=[0],
+        ),
         desc.File(
             name='undistortedImages',
             label='Images Folder',
diff --git a/meshroom/nodes/blender/scripts/camera_support.py b/meshroom/nodes/blender/scripts/camera_support.py
index d6fd585f..2188d44b 100644
--- a/meshroom/nodes/blender/scripts/camera_support.py
+++ b/meshroom/nodes/blender/scripts/camera_support.py
@@ -32,7 +32,12 @@ def main():
         "--sfMCameraPath", dest="SFM_cam_path", metavar='FILE', required=True,
         help="This text will be used to render an image",
     )
-    
+
+    parser.add_argument(
+        "--cloudPointDensity", dest="Cloud_Point_Density", type=float, required=True,
+        help="Number of point from the cloud rendered",
+    )
+
     parser.add_argument(
         "--undistortedImages", dest="undisto_images", metavar='FILE', required=True,
         help="Save the generated file to the specified path",
@@ -58,6 +63,11 @@ def main():
         print("Error: --undisto_images argument not given, aborting.")
         parser.print_help()
         return
+        
+    if not args.Cloud_Point_Density:
+        print("Error: --Cloud_Point_Density argument not given, aborting.")
+        parser.print_help()
+        return
 
     if not args.output_path:
         print("Error: --output_path argument not given, aborting.")
@@ -106,6 +116,7 @@ def main():
                 bpy.context.view_layer.objects.active = obj
                 bpy.context.scene.camera = obj
                 #bpy.ops.image.open(directory=args.undisto_images, files=undis_imgs, show_multiview=False)
+                bpy.ops.image.open(filepath=args.undisto_images + "985078214_RJB05565.exr", directory=args.undisto_images, files=undis_imgs, relative_path=True, show_multiview=False)
                 obj.data.show_background_images = True
 
 
@@ -126,9 +137,10 @@ def main():
                 obj.modifiers.new("ParticleSystem", "PARTICLE_SYSTEM")
                 particle_system = bpy.data.particles["ParticleSystem"]
                 particle_system.render_type = 'OBJECT'
+                
                 particle_system.instance_object = bpy.data.objects["Cube"]
                 particle_system.emit_from = 'VERT'
-                particle_system.count = 4000   #Modulation of numbers in the node
+                particle_system.count = 4000#args.Cloud_Point_Density * len(obj.vertices.values())
                 particle_system.frame_end = 1.0
                 particle_system.use_emit_random = False
                 particle_system.particle_size = 0.02