scripts-blender/addons/brushstroke_tools/settings.py

@@ -233,6 +233,7 @@ class BSBST_Settings(bpy.types.PropertyGroup):
                                        description="Estimate the length, width and distribution density of the brush strokes based on the bounding box to provide a reasonable starting point regardless of scale")
 
     silent_switch: bpy.props.BoolProperty(default=False)
+    preview_texture: bpy.props.PointerProperty(type=bpy.types.Texture)
 
 classes = [
     BSBST_socket_info,

scripts-blender/addons/brushstroke_tools/ui.py

@@ -212,6 +212,10 @@ def draw_material_settings(layout, material, surface_object=None):
         brush_header, brush_panel = layout.panel('brush_panel', default_closed = True)
         brush_header.label(text='Brush Style', icon='BRUSHES_ALL')
         if brush_panel:
+            if settings.preview_texture:
+                row = brush_panel.row(align=True)
+                row.template_preview(settings.preview_texture, show_buttons=False, preview_id='brushstroke_preview') # TODO: Figure out how to redraw the preview on style change
+
             row = brush_panel.row(align=True)
             row.prop_search(material, 'brush_style', addon_prefs, 'brush_styles', text='', icon='BRUSHES_ALL')
             row.operator('brushstroke_tools.refresh_styles', text='', icon='FILE_REFRESH')

scripts-blender/addons/brushstroke_tools/utils.py

@@ -531,12 +531,24 @@ def round_n(val, n):
 def set_preview(pixels):
     if not pixels:
         return
-    preview_name = '.BSBST-preview'
+    preview_name = 'BSBST-preview'
     preview_img = bpy.data.images.get(preview_name)
     if not preview_img:
-        preview_img = bpy.data.images.new(preview_name, width=256, height=256, float_buffer=True, is_data=True)
+        preview_img = bpy.data.images.new(preview_name, width=256, height=256)
+    if not len(preview_img.pixels) == len(pixels):
+        return # TODO handle different sizes
     
-    preview_img.pixels.foreach_set(pixels)
+    preview_texture = bpy.data.textures.get(preview_name)
+    if preview_texture:
+        bpy.data.textures.remove(preview_texture)
+    preview_texture = bpy.data.textures.new(name=preview_name, type="IMAGE")
+    preview_texture.extension = 'EXTEND'
+    preview_texture.image = preview_img
+    
+    settings = bpy.context.scene.BSBST_settings
+    settings.preview_texture = preview_texture
+    
+    preview_img.pixels.foreach_set(numpy.array(pixels, dtype=numpy.float32))
 
 def register():
     bpy.app.handlers.depsgraph_update_post.append(refresh_preset)