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MikkT tangent generation support

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* Default setting when no tangents rule: MikkT tangents.
* Calculates tangents/bitangents for all available uv sets.
* Creates tangent/bitangent data in in case they are not existing yet (as in: the source scene contains tangents/bitangents)
* Overwrites the tangent/bitangent data from the source scene in case MikkT is wished.
* Added helper functions to create tangent/bitangent scene nodes, finding tangent/bitangent data for a given uv layer and calculating the number of uv layers provided by the mesh scene node.

Signed-off-by: Benjamin Jillich <jillich@amazon.com>
This commit is contained in:
Benjamin Jillich
2021-07-20 16:32:34 +02:00
parent fe661bc159
commit d987c45072
4 changed files with 211 additions and 96 deletions
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Code/Tools/SceneAPI/SceneData/Tests/GraphData/GraphDataBehaviorTests.cpp
+1 -1
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@@ -94,7 +94,7 @@ namespace AZ
tangentData->AppendTangent(AZ::Vector4{0.12f, 0.34f, 0.56f, 0.78f});
tangentData->AppendTangent(AZ::Vector4{0.18f, 0.28f, 0.19f, 0.29f});
tangentData->AppendTangent(AZ::Vector4{0.21f, 0.43f, 0.65f, 0.87f});
tangentData->SetTangentSpace(AZ::SceneAPI::DataTypes::TangentSpace::EMotionFX);
tangentData->SetTangentSpace(AZ::SceneAPI::DataTypes::TangentSpace::MikkT);
tangentData->SetTangentSetIndex(2);
return true;
}