[nodes] Change in export animated cams and improving blender node

The returns in ExportAnimatedCamera didn't include the path toward the undistorted images so I added it.

The Blender Rendition nodes can now (among other things) diplay cloud of points. The code is cleaned up and only the background image sequence remains to be implemented...

meshroom/nodes/aliceVision/ExportAnimatedCamera.py

@@ -100,5 +100,13 @@ Based on the input image filenames, it will recognize the input video sequence t
             group='',  # exclude from command line
             uid=[],
         ),
+        desc.File(
+            name='outputUndistorted',
+            label='Output Undistorted images Filepath',
+            description='Output Undistorted images.',
+            value=desc.Node.internalFolder + 'undistort',
+            group='',  # exclude from command line
+            uid=[],
+        ),
         ]
 

meshroom/nodes/blender/scripts/camera_support.py

@@ -69,27 +69,45 @@ def main():
 
     #Clear Current Scene
     try:
-        print(bpy.data.objects[0])
-        print(bpy.data.objects[1])
-        print(bpy.data.objects[2])
         for objects in bpy.data.objects:
             bpy.data.objects.remove(objects)
-        print(bpy.data.objects)
     except:
         print("Error: While clearing current scene")
 
 
-    #import abc (Animated Camera)
+    #Place the particle cube
 
+    cube = bpy.data.meshes['Cube']
+    objectsCube = bpy.data.objects.new(name="Cube", object_data=cube)
+
+    objectsCube.scale = mathutils.Vector((0.3, 0.3, 0.3))
+    objectsCube.location = mathutils.Vector((0, -2.0, -1000))
+    bpy.context.scene.collection.objects.link(objectsCube)
+
+    # import Undistorted Images
+
+    undis_imgs = []
+    try:
+        files = os.listdir(args.undisto_images)
+        for f in files :
+            if f.endswith(".exr") :
+                undis_imgs.append({"name":f})
+    except:
+        print("Error: while importing the undistorted images.")
+
+    #import abc (Animated Camera)
+    cam_name = ""
     try:
         bpy.ops.wm.alembic_import(filepath=args.SFM_cam_path)
         animated_cams = bpy.context.selected_editable_objects[:] #Contains ['animxform_RJBframe_SONY_ILCE-7M3', 'mvgCameras', 'mvgCamerasUndefined', 'mvgPointCloud', 'mvgCloud', 'mvgRoot']
-        animated_cam_obj = animated_cams[1] ## scene.object
-        animated_cam_RJB = animated_cams[0]
         for obj in animated_cams:
             if obj.data and obj.data.type == 'PERSP':
                 bpy.context.scene.collection.objects.link(obj)
+                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)
+                obj.data.show_background_images = True
+
 
     except:
         print("Error: while importing the alembic file (Animated Camera).")
@@ -101,37 +119,28 @@ def main():
     try:
         bpy.ops.wm.alembic_import(filepath=args.SFM_Data)
         all_abc_info = bpy.context.selected_editable_objects[:] #Contains ['mvgCameras', 'mvgCamerasUndefined', 'mvgPointCloud', 'mvgCloud', 'mvgRoot']
-        pointCloud = all_abc_info[len(all_abc_info) - 3]
         for obj in all_abc_info:
             if obj.name == 'mvgPointCloud.001':
                 bpy.context.scene.collection.objects.link(obj)
+                bpy.context.view_layer.objects.active = obj
+                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.frame_end = 1.0
+                particle_system.use_emit_random = False
+                particle_system.particle_size = 0.02
+                particle_system.physics_type = 'NO'
                 
     except:
-        print("Error: while importing the alembic file (sfm Data).")
-
-
-
-    # import Undistorted Images
-
-    undis_imgs = []
-    try:
-        files = os.listdir(args.undisto_images)
-        for f in files :
-            if f.endswith(".exr") :                
-                undis_imgs.append(bpy.ops.image.open(filepath=args.undisto_images + '/' + f))
-    except:
-        print("Error: while importing the undistorted images.")
-
-
-    cube = bpy.data.meshes['Cube']
-    objects = bpy.data.objects.new(name="Cube", object_data=cube)
-    bpy.context.scene.collection.objects.link(objects)
-
+        print("Error: while importing the alembic file (Cloud Point).")
 
     ## Starts the rendering and launchs it with a blender animator player
 
     try:
-        bpy.context.scene.render.image_settings.file_format = 'FFMPEG' # Changes to video
+        bpy.context.scene.render.image_settings.file_format = 'FFMPEG'
         bpy.context.scene.render.filepath = args.output_path + '/render.mkv'
         bpy.ops.render.render(animation=True)
         bpy.ops.render.play_rendered_anim()