feat: support eevee

Author: icrdr

README.md

@@ -56,3 +56,15 @@ It is not support editing the same blender file across add-on versions. In order
 But even then, there is still no guarantee that the new version of the add-on will work on the old blender file. Therefore, it is highly recommended to open a new blender file to start the creating, not based on the old one.
 
 Alternatively, objects from the old file that have nothing to do with Bioxel Nodes could be append to the new blender file.
+
+## About EEVEE Render
+
+Bioxel Nodes is designed for Cycles Render. However, it does support eevee render partially. "Solid Shader" node and "Volume Shader" node have a toggle called "EEVEE Render". If you want to render Bioxel Component in real-time, turn it on.
+
+Also, there are some limitations:
+
+1. Only one cutter supported.
+2. You cannot use "Color Ramp" over 2 colors.
+3. EEVEE Render result is not that great as Cycles does.
+
+> "Volume Shader" node is not work properly in EEVEE Next since 4.2. It is because EEVEE Next is not support attributes from instances of volume shader by now. But the Blender 4.2 docs still say attributes reading is ok, so I suppose this feature will eventually be implemented.

bioxelnodes/assets/Nodes/BioxelNodes_4.0.blend

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:673262476653e04ca793e97f2d998cba31f338e1219199585a3844fd3c8d6b33
-size 4887206
+oid sha256:6721aaf62fda8d104312d290032ab045b9f7d06f7f71ef9dd17b851c0e7293b5
+size 5410056

bioxelnodes/assets/Nodes/BioxelNodes_4.1.blend

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:cecabd497316a2c0a0e64cb30274ea4c62000288fb13481102b4f2f2eaca2e7d
-size 4196897
+oid sha256:9dc863260e46ad32b0101f9e082a4c7162ccf1e1df7a8ea678d02961d9866d99
+size 4702346

bioxelnodes/io.py

@@ -6,10 +6,11 @@
 from pathlib import Path
 from uuid import uuid4
 import mathutils
+import random
 
 from .nodes import custom_nodes
 from .props import BIOXELNODES_Series
-from .utils import (calc_bbox_verts, get_container, get_layer, get_text_index_str,
+from .utils import (calc_bbox_verts, get_all_layers, get_container, get_layer, get_text_index_str,
                     get_node_by_type, hide_in_ray, lock_transform, show_message)
 
 try:
@@ -218,6 +219,7 @@ class ImportVolumeDataDialog(bpy.types.Operator):
     )  # type: ignore
 
     def execute(self, context):
+        is_first_import = len(get_all_layers()) == 0
         image, name = read_image(self.filepath, self.series_id)
         container_name = self.container_name or name
         bioxel_size = self.bioxel_size
@@ -258,7 +260,7 @@ def execute(self, context):
             interpolator = sitk.sitkNearestNeighbor
         elif self.resample_method == "gaussian":
             interpolator = sitk.sitkGaussian
-            
+
         if self.read_as == "labels":
             interpolator = sitk.sitkNearestNeighbor
 
@@ -451,11 +453,14 @@ def create_layer(array, layer_name, layer_type="scalar"):
             input_node = get_node_by_type(nodes, 'NodeGroupInput')[0]
             output_node = get_node_by_type(nodes, 'NodeGroupOutput')[0]
 
-            to_layer_node = custom_nodes.add_node(nodes, "BioxelNodes__ConvertToLayer")
+            to_layer_node = custom_nodes.add_node(nodes,
+                                                  "BioxelNodes__ConvertToLayer")
 
             links.new(input_node.outputs[0], to_layer_node.inputs[0])
             links.new(to_layer_node.outputs[0], output_node.inputs[0])
 
+            to_layer_node.inputs['Layer ID'].default_value = random.randint(-200000000,
+                                                                            200000000)
             to_layer_node.inputs['Bioxel Size'].default_value = bioxel_size
             to_layer_node.inputs['Shape'].default_value = layer_shape
             to_layer_node.inputs['Origin'].default_value = layer_origin
@@ -531,7 +536,7 @@ def create_layer(array, layer_name, layer_type="scalar"):
         bpy.context.view_layer.objects.active = container
 
         # Change render setting for better result
-        if preferences.do_change_render_setting:
+        if preferences.do_change_render_setting and is_first_import:
             bpy.context.scene.render.engine = 'CYCLES'
             bpy.context.scene.cycles.volume_bounces = 12
             bpy.context.scene.cycles.transparent_max_bounces = 16

bioxelnodes/operators.py

@@ -1,4 +1,5 @@
 from pathlib import Path
+import random
 import bpy
 import pyopenvdb as vdb
 from uuid import uuid4
@@ -107,7 +108,29 @@ def execute(self, context):
             filepath=str(vdb_path), align='WORLD', location=(0, 0, 0), scale=(1, 1, 1))
 
         joined_layer = bpy.context.active_object
-        
+
+        # Set props to VDB object
+        joined_layer.name = f"{base_layer.name}_Joined"
+        joined_layer.data.name = f"{base_layer.name}_Joined"
+
+        lock_transform(joined_layer)
+        hide_in_ray(joined_layer)
+        joined_layer.hide_select = True
+        joined_layer.hide_render = True
+        joined_layer.hide_viewport = True
+        joined_layer.data.display.use_slice = True
+        joined_layer.data.display.density = 1e-05
+
+        joined_layer['bioxel_layer'] = True
+        joined_layer.parent = base_layer.parent
+
+        for collection in layer.users_collection:
+            collection.objects.unlink(layer)
+
+        for collection in base_layer.users_collection:
+            collection.objects.link(layer)
+
+        # add convert to layer node
         base_layer_node = base_layer.modifiers[0].node_group.nodes['BioxelNodes__ConvertToLayer']
         bioxel_size = base_layer_node.inputs['Bioxel Size'].default_value
         layer_shape = base_layer_node.inputs['Shape'].default_value
@@ -116,7 +139,7 @@ def execute(self, context):
         scalar_offset = base_layer_node.inputs['Scalar Offset'].default_value
         scalar_min = base_layer_node.inputs['Scalar Min'].default_value
         scalar_max = base_layer_node.inputs['Scalar Max'].default_value
-        
+
         if self.scalar_layer != "None":
             scalar_layer_node = scalar_layer.modifiers[0].node_group.nodes['BioxelNodes__ConvertToLayer']
             scalar_offset = scalar_layer_node.inputs['Scalar Offset'].default_value
@@ -130,15 +153,15 @@ def execute(self, context):
 
         input_node = get_node_by_type(nodes, 'NodeGroupInput')[0]
         output_node = get_node_by_type(nodes, 'NodeGroupOutput')[0]
-        
 
         joined_layer_node = custom_nodes.add_node(
             nodes, "BioxelNodes__ConvertToLayer")
 
-        
         links.new(input_node.outputs[0], joined_layer_node.inputs[0])
         links.new(joined_layer_node.outputs[0], output_node.inputs[0])
 
+        joined_layer_node.inputs['Layer ID'].default_value = random.randint(-200000000,
+                                                                            200000000)
         joined_layer_node.inputs['Bioxel Size'].default_value = bioxel_size
         joined_layer_node.inputs['Shape'].default_value = layer_shape
         joined_layer_node.inputs['Origin'].default_value = layer_origin
@@ -147,21 +170,6 @@ def execute(self, context):
         joined_layer_node.inputs['Scalar Min'].default_value = scalar_min
         joined_layer_node.inputs['Scalar Max'].default_value = scalar_max
 
-        # Set props to VDB object
-        joined_layer.name = f"{base_layer.name}_Joined"
-        joined_layer.data.name = f"{base_layer.name}_Joined"
-
-        lock_transform(joined_layer)
-        hide_in_ray(joined_layer)
-        joined_layer.hide_select = True
-        joined_layer.hide_render = True
-        joined_layer.hide_viewport = True
-        joined_layer.data.display.use_slice = True
-        joined_layer.data.display.density = 1e-05
-
-        joined_layer['bioxel_layer'] = True
-        joined_layer.parent = base_layer.parent
-
         return {'FINISHED'}
 
     def invoke(self, context, event):
@@ -206,8 +214,8 @@ def execute(self, context):
         output_node = get_node_by_type(nodes, 'NodeGroupOutput')[0]
         object_node = nodes.new("GeometryNodeObjectInfo")
         realize_nodes = nodes.new("GeometryNodeRealizeInstances")
-        separate_node = custom_nodes.add_node(
-            nodes, "BioxelNodes__SeparateComponent")
+        separate_node = custom_nodes.add_node(nodes,
+                                              "BioxelNodes__SeparateComponent")
 
         object_node.inputs[0].default_value = container
         separate_node.inputs[1].default_value = 1

docs/index.md

@@ -54,3 +54,15 @@ It is not support editing the same blender file across add-on versions. In order
 But even then, there is still no guarantee that the new version of the add-on will work on the old blender file. Therefore, it is highly recommended to open a new blender file to start the creating, not based on the old one.
 
 Alternatively, objects from the old file that have nothing to do with Bioxel Nodes could be append to the new blender file.
+
+## About EEVEE Render
+
+Bioxel Nodes is designed for Cycles Render. However, it does support eevee render partially. "Solid Shader" node and "Volume Shader" node have a toggle called "EEVEE Render". If you want to render Bioxel Component in real-time, turn it on.
+
+Also, there are some limitations:
+
+1. Only one cutter supported.
+2. You cannot use "Color Ramp" over 2 colors.
+3. EEVEE Render result is not that great as Cycles does.
+
+> "Volume Shader" node is not work properly in EEVEE Next since 4.2. It is because EEVEE Next is not support attributes from instances of volume shader by now. But the Blender 4.2 docs still say attributes reading is ok, so I suppose this feature will eventually be implemented.

extension/blender_manifest.toml

@@ -3,7 +3,7 @@ schema_version = "1.0.0"
 # Example of manifest file for a Blender extension
 # Change the values according to your extension
 id = "bioxelnodes"
-version = "0.2.0"
+version = "0.2.2"
 name = "Bioxel Nodes"
 tagline = "For scientific volumetric data visualization in Blender"
 maintainer = "Ma Nan <[email protected]>"

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "bioxelnodes"
-version = "0.2.0"
+version = "0.2.2"
 description = ""
 authors = ["Ma Nan <[email protected]>"]
 license = "MIT"