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Utility: Refactor some algorithms

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This commit is contained in:
SirLynix
2022-05-12 18:15:20 +02:00
parent 7c2b8e0576
commit 6469ab5fde
7 changed files with 80 additions and 58 deletions
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53
include/Nazara/Utility/Algorithm.inl
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@@ -8,6 +8,59 @@
namespace Nz
{
inline Vector3f TransformPositionTRS(const Vector3f& transformTranslation, const Quaternionf& transformRotation, const Vector3f& transformScale, const Vector3f& position)
{
return transformRotation * (transformScale * position) + transformTranslation;
}
Vector3f TransformNormalTRS(const Quaternionf& transformRotation, const Vector3f& transformScale, const Vector3f& normal)
{
return Quaternionf::Mirror(transformRotation, transformScale) * normal;
}
inline Quaternionf TransformRotationTRS(const Quaternionf& transformRotation, const Vector3f& transformScale, const Quaternionf& rotation)
{
return Quaternionf::Mirror(transformRotation, transformScale) * rotation;
}
inline Vector3f TransformScaleTRS(const Vector3f& transformScale, const Vector3f& scale)
{
return transformScale * scale;
}
inline void TransformTRS(const Vector3f& transformTranslation, const Quaternionf& transformRotation, const Vector3f& transformScale, Vector3f& position, Quaternionf& rotation, Vector3f& scale)
{
position = TransformPositionTRS(transformTranslation, transformRotation, transformScale, position);
rotation = TransformRotationTRS(transformRotation, transformScale, rotation);
scale = TransformScaleTRS(transformScale, scale);
}
inline void TransformVertices(VertexPointers vertexPointers, UInt64 vertexCount, const Matrix4f& matrix)
{
if (vertexPointers.positionPtr)
{
for (UInt64 i = 0; i < vertexCount; ++i)
*vertexPointers.positionPtr++ = matrix.Transform(*vertexPointers.positionPtr);
}
if (vertexPointers.normalPtr || vertexPointers.tangentPtr)
{
Vector3f scale = matrix.GetScale();
if (vertexPointers.normalPtr)
{
for (UInt64 i = 0; i < vertexCount; ++i)
*vertexPointers.normalPtr++ = matrix.Transform(*vertexPointers.normalPtr, 0.f) / scale;
}
if (vertexPointers.tangentPtr)
{
for (UInt64 i = 0; i < vertexCount; ++i)
*vertexPointers.tangentPtr++ = matrix.Transform(*vertexPointers.tangentPtr, 0.f) / scale;
}
}
}
template<typename T> constexpr ComponentType ComponentTypeId()
{
static_assert(AlwaysFalse<T>::value, "This type cannot be used as a component.");