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TSpace setting for MikkT tangent generation (#2386)

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* Added TSpace method setting which is only visible for MikkT generation.
* Fixed a bug with generating tangents for blend shapes.
* Renamed tangent space into generation method.
* Some code cleaning

Signed-off-by: Benjamin Jillich <jillich@amazon.com>
This commit is contained in:
Benjamin Jillich
2021-07-27 00:15:26 -07:00
committed by GitHub
parent c9b3ed8bc7
commit a3712b5564
17 changed files with 385 additions and 371 deletions
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Code/Tools/SceneAPI/SceneData/Rules/TangentsRule.cpp
+29 -11
View File
@@ -26,13 +26,22 @@ namespace AZ
{
TangentsRule::TangentsRule()
: DataTypes::IRule()
, m_tangentSpace(AZ::SceneAPI::DataTypes::TangentSpace::MikkT)
{
}
AZ::SceneAPI::DataTypes::TangentSpace TangentsRule::GetTangentSpace() const
AZ::SceneAPI::DataTypes::TangentGenerationMethod TangentsRule::GetGenerationMethod() const
{
return m_tangentSpace;
return m_generationMethod;
}
AZ::SceneAPI::DataTypes::MikkTSpaceMethod TangentsRule::GetMikkTSpaceMethod() const
{
return m_tSpaceMethod;
}
AZ::Crc32 TangentsRule::GetSpaceMethodVisibility() const
{
return (m_generationMethod == AZ::SceneAPI::DataTypes::TangentGenerationMethod::MikkT) ? AZ::Edit::PropertyVisibility::Show : AZ::Edit::PropertyVisibility::Hide;
}
void TangentsRule::Reflect(AZ::ReflectContext* context)
@@ -43,20 +52,29 @@ namespace AZ
return;
}
serializeContext->Class<TangentsRule, DataTypes::IRule>()->Version(3)
->Field("tangentSpace", &TangentsRule::m_tangentSpace);
serializeContext->Class<TangentsRule, DataTypes::IRule>()->Version(4)
->Field("tangentSpace", &TangentsRule::m_generationMethod)
->Field("tSpaceMethod", &TangentsRule::m_tSpaceMethod);
AZ::EditContext* editContext = serializeContext->GetEditContext();
if (editContext)
{
editContext->Class<TangentsRule>("Tangents", "Specify how tangents are imported or generated.")
->ClassElement(Edit::ClassElements::EditorData, "")
->Attribute("AutoExpand", true)
->Attribute(AZ::Edit::Attributes::NameLabelOverride, "")
->DataElement(AZ::Edit::UIHandlers::ComboBox, &AZ::SceneAPI::SceneData::TangentsRule::m_tangentSpace, "Tangent space", "Specify the tangent space used for normal map baking. Choose 'From Fbx' to extract the tangents and bitangents directly from the Fbx file. When there is no tangents rule or the Fbx has no tangents stored inside it, the 'MikkT' option will be used with orthogonal tangents of unit length, so with the normalize option enabled, using the first UV set.")
->EnumAttribute(AZ::SceneAPI::DataTypes::TangentSpace::FromSourceScene, "From Source Scene")
->EnumAttribute(AZ::SceneAPI::DataTypes::TangentSpace::MikkT, "MikkT")
->Attribute(AZ::Edit::Attributes::ChangeNotify, AZ::Edit::PropertyRefreshLevels::EntireTree)
->Attribute("AutoExpand", true)
->Attribute(AZ::Edit::Attributes::NameLabelOverride, "")
->DataElement(AZ::Edit::UIHandlers::ComboBox, &AZ::SceneAPI::SceneData::TangentsRule::m_generationMethod, "Generation Method", "Specify the tangent generation method. Choose 'From Source Scene' to extract the tangents and bitangents directly from the source scene file. When there is no tangents rule or the source scene has no tangents stored inside it, the 'MikkT' option will be used.")
->EnumAttribute(AZ::SceneAPI::DataTypes::TangentGenerationMethod::FromSourceScene, "From Source Scene")
->EnumAttribute(AZ::SceneAPI::DataTypes::TangentGenerationMethod::MikkT, "MikkT")
->Attribute(AZ::Edit::Attributes::ChangeNotify, AZ::Edit::PropertyRefreshLevels::EntireTree)
->DataElement(AZ::Edit::UIHandlers::ComboBox, &AZ::SceneAPI::SceneData::TangentsRule::m_tSpaceMethod, "TSpace Method",
"TSpace generates the tangents and bitangents with their true magnitudes which can be used for relief mapping effects. "
" It calculates the 'real' bitangent which may not be perpendicular to the tangent. "
"However, both, the tangent and bitangent are perpendicular to the vertex normal. "
"TSpaceBasic calculates unit vector tangents and bitangents at pixel/vertex level which are sufficient for basic normal mapping.")
->EnumAttribute(AZ::SceneAPI::DataTypes::MikkTSpaceMethod::TSpace, "TSpace")
->EnumAttribute(AZ::SceneAPI::DataTypes::MikkTSpaceMethod::TSpaceBasic, "TSpaceBasic")
->Attribute(AZ::Edit::Attributes::Visibility, &TangentsRule::GetSpaceMethodVisibility);
;
}
}