Hello people,

I'm in trouble trying to use the Solidworks API to set appearances to a parts face. I followed the example here​ but when I execute the code I get a black face like the image below.

Here is the code I am running:

ModelDoc2 model = part as ModelDoc2;
Configuration configuration = model.GetActiveConfiguration();
string[] displayStates = (string[])configuration.GetDisplayStates();
string defaultState = displayStates.First(state => state != DEFAULT_STATE_NAME);
if(!displayStates.Contains(DEFAULT_STATE_NAME))
      configuration.CreateDisplayState(DEFAULT_STATE_NAME);
ModelDocExtension swModelDocExt = model.Extension;
DisplayStateSetting swDisplayStateSetting = swModelDocExt.GetDisplayStateSetting((int)swDisplayStateOpts_e.swThisDisplayState);
swDisplayStateSetting.Entities = faces;
swDisplayStateSetting.Option = (int)swDisplayStateOpts_e.swThisDisplayState;
string[] displayStateNames = new string[1] { DEFAULT_STATE_NAME };
swDisplayStateSetting.Names = displayStateNames;
swDisplayStateSetting.PartLevel = true;
object appearances = (object)swModelDocExt.DisplayStateSpecMaterialPropertyValues[swDisplayStateSetting];
object[] appearancesArray = (object[])appearances;
AppearanceSetting swAppearanceSetting = (AppearanceSetting)appearancesArray[0];
int red_rgb = 255;
int green_rgb = 255;
int blue_rgb = 0;
swAppearanceSetting.Color = Math.Max(Math.Min(red_rgb, 255), 0) + Math.Max(Math.Min(green_rgb, 255), 0) * 16 * 16 + Math.Max(Math.Min(blue_rgb, 255), 0) * 16 * 16 * 16 * 16;
swAppearanceSetting.Diffuse = 1;
AppearanceSetting[] newAppearanceSetting = new AppearanceSetting[1];
newAppearanceSetting[0] = swAppearanceSetting;
swModelDExt.DisplayStateSpecMaterialPropertyValues[swDisplayStateSetting] = newAppearanceSetting;

Someone could help me understand what is happening?

Thanks