Fixed bug that prevented Asset Viewer from using shader, manifests are now sorted by name, fixed sponza test model manifest

assets/base/sponza/manifest.yaml

@@ -0,0 +1,2 @@
+name: sponza_demo
+model: sponza.obj

lib/tools/asset_viewer/lib/main_menu.rb

@@ -16,6 +16,8 @@ class IMICFPS
           end
         end
 
+        @manifests.sort_by! { |m| m.name.downcase }
+
         flow(margin: 10) do
           @manifests.each do |manifest|
             button manifest.name do

lib/tools/asset_viewer/lib/turn_table.rb

@@ -8,7 +8,7 @@ class IMICFPS
         window.needs_cursor = false
         @manifest = @options[:manifest]
 
-        if window.config.get(:debug, :use_shaders)
+        if window.config.get(:debug_options, :use_shaders) && !Shader.available?("default")
           Shader.new(
             name: "default",
             includes_dir: "shaders/include",

lib/ui/commands/debug_command.rb

@@ -13,6 +13,10 @@ class IMICFPS
         $window.config[:debug_options, key] = value
       end
 
+      def get(key)
+        $window.config.get(:debug_options, key)
+      end
+
       def setup
         set(:boundingboxes, false) if $window.config.get(:debug_options, :boundingboxes).nil?
         set(:wireframe, false) if $window.config.get(:debug_options, :wireframe).nil?