scripts-blender/addons/brushstroke_tools/settings.py

@@ -134,8 +134,10 @@ def set_brush_style(self, value):
     ng_name = f'BSBST-BS.{value}'
     ng = utils.ensure_node_group(ng_name, [bs for bs in addon_prefs.brush_styles if bs.name==value][0].filepath)
 
-    # if ng.preview:
-    #    utils.set_preview(ng.preview.image_pixels_float, ng.preview.image_size[:])
+    if ng.preview:
+        utils.set_preview(ng.preview.image_pixels_float, ng.preview.image_size[:])
+    else:
+        utils.set_preview(None)
 
     node = self.node_tree.nodes['Brush Style']
     node_prev_inputs = [input.name for input in node.inputs]

scripts-blender/addons/brushstroke_tools/ui.py

@@ -214,8 +214,7 @@ def draw_material_settings(layout, material, surface_object=None):
         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
-                brush_panel.prop(settings.preview_texture, 'use_flip_axis')
+                row.template_preview(settings.preview_texture, show_buttons=False, preview_id='brushstroke_preview')
 
             row = brush_panel.row(align=True)
             row.prop_search(material, 'brush_style', addon_prefs, 'brush_styles', text='', icon='BRUSHES_ALL')

scripts-blender/addons/brushstroke_tools/utils.py

@@ -586,18 +586,22 @@ def round_n(val, n):
     return round(val, n-int(math.floor(math.log10(abs(val))))-1)
 
 def set_preview(pixels, size = (256, 256)):
-    if not pixels:
-        return
-    preview_name = 'BSBST-preview'
+    preview_name = '.BSBST-preview'
     preview_img = bpy.data.images.get(preview_name)
+    preview_texture = bpy.data.textures.get(preview_name)
+    if not pixels:
+        if preview_img:
+            bpy.data.images.remove(preview_img)
+        if preview_texture:
+            bpy.data.textures.remove(preview_texture)
+        return
     if preview_img:
         if not len(preview_img.pixels) == len(pixels):
             bpy.data.images.remove(preview_img)
             preview_img = None
     if not preview_img:
         preview_img = bpy.data.images.new(preview_name, width=size[0], height=size[1])
-    
-    preview_texture = bpy.data.textures.get(preview_name)
+
     if not preview_texture:
         preview_texture = bpy.data.textures.new(name=preview_name, type="IMAGE")
         settings = bpy.context.scene.BSBST_settings