/// <summary>
/// Creates the default resource for the given type name..
/// </summary>
/// <typeparam name="T">The type for which the generic resource should be created.</typeparam>
internal static T CreateDefaultResource <T>()
where T : Resource
{
var resourceType = typeof(T);
T? result = null;
// Try to create default resources
if (resourceType == typeof(MaterialResource))
{
result = new StandardMaterialResource() as T;
}
else if (resourceType == typeof(TextureResource))
{
result = new StandardTextureResource(
new AssemblyResourceLink(
typeof(ResourceDictionary),
"SeeingSharp.Resources.Textures.Blank_16x16.png")) as T;
}
else if (resourceType == typeof(GeometryResource))
{
var dummyGeometry = new Geometry();
dummyGeometry.FirstSurface.BuildCube(
Vector3.Zero,
new Vector3(1f, 1f, 1f))
.SetVertexColor(Color4.White);
result = new GeometryResource(dummyGeometry) as T;
}
//Try to create the resource using the standard constructor
if (result == null)
{
var standardConstructor =
resourceType.GetTypeInfo().DeclaredConstructors
.FirstOrDefault(actConstructor => actConstructor.GetParameters().Length <= 0);
if (standardConstructor != null)
{
result = Activator.CreateInstance(resourceType) as T;
}
}
if (result == null)
{
throw new SeeingSharpGraphicsException("Unable to create default resource for resource type " + resourceType.FullName);
}
return(result);
}
private static void ProcessMaterials(ImportedModelContainer modelContainer, Scene scene)
{
var materialCount = scene.MaterialCount;
for (var materialIndex = 0; materialIndex < materialCount; materialIndex++)
{
var actMaterial = scene.Materials[materialIndex];
modelContainer.AddResource(new ImportedResourceInfo(
modelContainer.GetResourceKey("Material", materialIndex.ToString()),
_ =>
{
var materialResource = new StandardMaterialResource();
if (actMaterial.HasColorDiffuse)
{
materialResource.UseVertexColors = false;
materialResource.MaterialDiffuseColor =
AssimpHelper.Color4FromAssimp(actMaterial.ColorDiffuse);
}
return(materialResource);
}));
}
}
