public static FDatasmithFacadeTexture ParseTexture(RhinoTextureInfo TextureInfo)
{
Texture RhinoTexture = TextureInfo.RhinoTexture;
if (!TextureInfo.IsSupported())
{
return(null);
}
FDatasmithFacadeTexture TextureElement = new FDatasmithFacadeTexture(TextureInfo.Name);
TextureElement.SetLabel(TextureInfo.Label);
TextureElement.SetFile(TextureInfo.FilePath);
TextureElement.SetTextureFilter(FDatasmithFacadeTexture.ETextureFilter.Default);
TextureElement.SetRGBCurve(1);
TextureElement.SetTextureAddressX(RhinoTexture.WrapU == TextureUvwWrapping.Clamp ? FDatasmithFacadeTexture.ETextureAddress.Clamp : FDatasmithFacadeTexture.ETextureAddress.Wrap);
TextureElement.SetTextureAddressY(RhinoTexture.WrapV == TextureUvwWrapping.Clamp ? FDatasmithFacadeTexture.ETextureAddress.Clamp : FDatasmithFacadeTexture.ETextureAddress.Wrap);
FDatasmithFacadeTexture.ETextureMode TextureMode = FDatasmithFacadeTexture.ETextureMode.Diffuse;
if (RhinoTexture.TextureType == TextureType.Bump)
{
TextureMode = FDatasmithFacadeTexture.ETextureMode.Bump;
}
TextureElement.SetTextureMode(TextureMode);
return(TextureElement);
}
public static void ParseMaterial(FDatasmithFacadeUEPbrMaterial DSMaterial, Material RhinoMaterial, DatasmithRhinoSceneParser SceneParser)
{
Color MaterialDiffuseColor = RhinoMaterial.DiffuseColor;
MaterialDiffuseColor = Color.FromArgb(255 - (byte)(255 * RhinoMaterial.Transparency), MaterialDiffuseColor);
Texture[] MaterialTextures = RhinoMaterial.GetTextures();
for (int TextureIndex = 0; TextureIndex < MaterialTextures.Length; ++TextureIndex)
{
Texture RhinoTexture = MaterialTextures[TextureIndex];
if (RhinoTexture != null)
{
RhinoTextureInfo TextureInfo = SceneParser.GetTextureInfoFromRhinoTexture(RhinoTexture.Id);
if (TextureInfo != null)
{
AddTextureToMaterial(DSMaterial, TextureInfo, MaterialDiffuseColor);
}
}
}
// Set a diffuse color if there's nothing in the BaseColor
if (DSMaterial.GetBaseColor().GetExpression() == null)
{
FDatasmithFacadeMaterialExpressionColor ColorExpression = DSMaterial.AddMaterialExpressionColor();
ColorExpression.SetName("Diffuse Color");
ColorExpression.SetsRGBColor(MaterialDiffuseColor.R, MaterialDiffuseColor.G, MaterialDiffuseColor.B, MaterialDiffuseColor.A);
ColorExpression.ConnectExpression(DSMaterial.GetBaseColor());
}
if (RhinoMaterial.Transparency > 0)
{
DSMaterial.SetBlendMode(/*EBlendMode::BLEND_Translucent*/ 2);
if (DSMaterial.GetOpacity().GetExpression() == null)
{
// Transparent color
FDatasmithFacadeMaterialExpressionScalar Scalar = DSMaterial.AddMaterialExpressionScalar();
Scalar.SetName("Opacity");
Scalar.SetScalar(1 - (float)RhinoMaterial.Transparency);
Scalar.ConnectExpression(DSMaterial.GetOpacity());
}
else
{
// Modulate the opacity map with the color transparency setting
FDatasmithFacadeMaterialExpressionGeneric Multiply = DSMaterial.AddMaterialExpressionGeneric();
Multiply.SetExpressionName("Multiply");
FDatasmithFacadeMaterialExpressionScalar Scalar = DSMaterial.AddMaterialExpressionScalar();
Scalar.SetName("Opacity Output Level");
Scalar.SetScalar(1 - (float)RhinoMaterial.Transparency);
Scalar.ConnectExpression(Multiply.GetInput(0));
FDatasmithFacadeMaterialExpression CurrentOpacityExpression = DSMaterial.GetOpacity().GetExpression();
CurrentOpacityExpression.ConnectExpression(Multiply.GetInput(1));
DSMaterial.GetOpacity().SetExpression(Multiply);
}
}
float Shininess = (float)(RhinoMaterial.Shine / Material.MaxShine);
if (Math.Abs(Shininess) > float.Epsilon)
{
FDatasmithFacadeMaterialExpressionScalar ShininessExpression = DSMaterial.AddMaterialExpressionScalar();
ShininessExpression.SetName("Roughness");
ShininessExpression.SetScalar(1f - Shininess);
ShininessExpression.ConnectExpression(DSMaterial.GetRoughness());
}
float Reflectivity = (float)RhinoMaterial.Reflectivity;
if (Math.Abs(Reflectivity) > float.Epsilon)
{
FDatasmithFacadeMaterialExpressionScalar ReflectivityExpression = DSMaterial.AddMaterialExpressionScalar();
ReflectivityExpression.SetName("Metallic");
ReflectivityExpression.SetScalar(Reflectivity);
ReflectivityExpression.ConnectExpression(DSMaterial.GetMetallic());
}
}
private static void AddTextureToMaterial(FDatasmithFacadeUEPbrMaterial DSMaterial, RhinoTextureInfo TextureInfo, Color DiffuseColor)
{
if (!TextureInfo.IsSupported())
{
return;
}
Texture RhinoTexture = TextureInfo.RhinoTexture;
// Extract texture mapping info
double BlendConstant, BlendA0, BlendA1, BlendA2, BlendA3;
RhinoTexture.GetAlphaBlendValues(out BlendConstant, out BlendA0, out BlendA1, out BlendA2, out BlendA3);
FDatasmithFacadeMaterialsUtils.FWeightedMaterialExpressionParameters WeightedExpressionParameters = new FDatasmithFacadeMaterialsUtils.FWeightedMaterialExpressionParameters((float)BlendConstant);
FDatasmithFacadeMaterialsUtils.FUVEditParameters UVParameters = GetUVParameter(RhinoTexture);
switch (RhinoTexture.TextureType)
{
case TextureType.Bitmap:
{
FDatasmithFacadeMaterialExpression TextureExpression = FDatasmithFacadeMaterialsUtils.CreateTextureExpression(DSMaterial, "Diffuse Map", TextureInfo.Name, UVParameters);
WeightedExpressionParameters.SetColorsRGB(DiffuseColor.R, DiffuseColor.G, DiffuseColor.B, DiffuseColor.A);
WeightedExpressionParameters.SetExpression(TextureExpression);
FDatasmithFacadeMaterialExpression Expression = FDatasmithFacadeMaterialsUtils.CreateWeightedMaterialExpression(DSMaterial, "Diffuse Color", WeightedExpressionParameters);
DSMaterial.GetBaseColor().SetExpression(Expression);
}
break;
case TextureType.Bump:
{
FDatasmithFacadeMaterialExpression TextureExpression = FDatasmithFacadeMaterialsUtils.CreateTextureExpression(DSMaterial, "Bump Map", TextureInfo.Name, UVParameters);
WeightedExpressionParameters.SetExpression(TextureExpression);
WeightedExpressionParameters.SetTextureMode(FDatasmithFacadeTexture.ETextureMode.Bump);
FDatasmithFacadeMaterialExpression Expression = FDatasmithFacadeMaterialsUtils.CreateWeightedMaterialExpression(DSMaterial, "Bump Height", WeightedExpressionParameters);
DSMaterial.GetNormal().SetExpression(Expression);
}
break;
case TextureType.Transparency:
{
FDatasmithFacadeMaterialExpression TextureExpression = FDatasmithFacadeMaterialsUtils.CreateTextureExpression(DSMaterial, "Opacity Map", TextureInfo.Name, UVParameters);
Color BlendColor = Color.White;
WeightedExpressionParameters.SetColorsRGB(BlendColor.R, BlendColor.G, BlendColor.B, BlendColor.A);
WeightedExpressionParameters.SetExpression(TextureExpression);
FDatasmithFacadeMaterialExpression Expression = FDatasmithFacadeMaterialsUtils.CreateWeightedMaterialExpression(DSMaterial, "White", WeightedExpressionParameters);
DSMaterial.GetOpacity().SetExpression(Expression);
if (Math.Abs(BlendConstant) > float.Epsilon)
{
DSMaterial.SetBlendMode(/*EBlendMode::BLEND_Translucent*/ 2);
}
}
break;
}
}
