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FBX -> Scene, part 2. Code changes, file renames (#1704)

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* First pass FBX -> Scene File conversion.
This is the simple pass, minimizing code changes and focused on comments.

Signed-off-by: stankowi <4838196+AMZN-stankowi@users.noreply.github.com>

* Step 1 of part 2 of the FBX -> Scene rename

Signed-off-by: stankowi <4838196+AMZN-stankowi@users.noreply.github.com>

* Renaming FbxSceneBuilder folder to SceneBuilder

Signed-off-by: stankowi <4838196+AMZN-stankowi@users.noreply.github.com>

* Renamed files

Signed-off-by: stankowi <4838196+AMZN-stankowi@users.noreply.github.com>

* More FBX -> Scene

Signed-off-by: stankowi <4838196+AMZN-stankowi@users.noreply.github.com>
This commit is contained in:
AMZN-stankowi
2021-07-01 15:46:55 -07:00
committed by GitHub
parent 328a0f09a5
commit 73522e90c9
83 changed files with 475 additions and 559 deletions
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Code/Tools/SceneAPI/SceneBuilder/SceneSystem.cpp
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/*
* Copyright (c) Contributors to the Open 3D Engine Project. For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#include <AzCore/Math/Vector3.h>
#include <SceneAPI/SceneBuilder/SceneSystem.h>
#include <SceneAPI/SceneCore/Utilities/Reporting.h>
#include <SceneAPI/SDKWrapper/AssImpSceneWrapper.h>
#include <SceneAPI/SDKWrapper/AssImpTypeConverter.h>
#include <assimp/scene.h>
namespace AZ
{
namespace SceneAPI
{
SceneSystem::SceneSystem() :
m_unitSizeInMeters(1.0f),
m_originalUnitSizeInMeters(1.0f),
m_adjustTransform(nullptr),
m_adjustTransformInverse(nullptr)
{
}
void SceneSystem::Set(const SDKScene::SceneWrapperBase* scene)
{
// Get unit conversion factor to meter.
if (!azrtti_istypeof<AssImpSDKWrapper::AssImpSceneWrapper>(scene))
{
return;
}
const AssImpSDKWrapper::AssImpSceneWrapper* assImpScene = azrtti_cast<const AssImpSDKWrapper::AssImpSceneWrapper*>(scene);
// If either meta data piece is not available, the default of 1 will be used.
assImpScene->GetAssImpScene()->mMetaData->Get("UnitScaleFactor", m_unitSizeInMeters);
assImpScene->GetAssImpScene()->mMetaData->Get("OriginalUnitScaleFactor", m_originalUnitSizeInMeters);
/* Conversion factor for converting from centimeters to meters */
m_unitSizeInMeters = m_unitSizeInMeters * .01f;
AZStd::pair<AssImpSDKWrapper::AssImpSceneWrapper::AxisVector, int32_t> upAxisAndSign = assImpScene->GetUpVectorAndSign();
if (upAxisAndSign.second <= 0)
{
AZ_TracePrintf(SceneAPI::Utilities::ErrorWindow, "Negative scene orientation is not a currently supported orientation.");
return;
}
AZStd::pair<AssImpSDKWrapper::AssImpSceneWrapper::AxisVector, int32_t> frontAxisAndSign = assImpScene->GetFrontVectorAndSign();
if (upAxisAndSign.first != AssImpSDKWrapper::AssImpSceneWrapper::AxisVector::Z &&
upAxisAndSign.first != AssImpSDKWrapper::AssImpSceneWrapper::AxisVector::Unknown)
{
AZ::Matrix4x4 currentCoordMatrix = AZ::Matrix4x4::CreateIdentity();
//(UpVector = +Z, FrontVector = +Y, CoordSystem = -X(RightHanded))
AZ::Matrix4x4 targetCoordMatrix = AZ::Matrix4x4::CreateFromColumns(
AZ::Vector4(-1, 0, 0, 0),
AZ::Vector4(0, 0, 1, 0),
AZ::Vector4(0, 1, 0, 0),
AZ::Vector4(0, 0, 0, 1));
switch (upAxisAndSign.first)
{
case AssImpSDKWrapper::AssImpSceneWrapper::AxisVector::X: {
if (frontAxisAndSign.second == 1)
{
currentCoordMatrix = AZ::Matrix4x4::CreateFromColumns(
AZ::Vector4(0, -1, 0, 0),
AZ::Vector4(1, 0, 0, 0),
AZ::Vector4(0, 0, 1, 0),
AZ::Vector4(0, 0, 0, 1));
}
else
{
currentCoordMatrix = AZ::Matrix4x4::CreateFromColumns(
AZ::Vector4(0, 1, 0, 0),
AZ::Vector4(1, 0, 0, 0),
AZ::Vector4(0, 0, -1, 0),
AZ::Vector4(0, 0, 0, 1));
}
}
break;
case AssImpSDKWrapper::AssImpSceneWrapper::AxisVector::Y: {
if (frontAxisAndSign.second == 1)
{
currentCoordMatrix = AZ::Matrix4x4::CreateFromColumns(
AZ::Vector4(1, 0, 0, 0),
AZ::Vector4(0, 1, 0, 0),
AZ::Vector4(0, 0, 1, 0),
AZ::Vector4(0, 0, 0, 1));
}
else
{
currentCoordMatrix = AZ::Matrix4x4::CreateFromColumns(
AZ::Vector4(-1, 0, 0, 0),
AZ::Vector4(0, 1, 0, 0),
AZ::Vector4(0, 0, -1, 0),
AZ::Vector4(0, 0, 0, 1));
}
}
break;
}
AZ::Matrix4x4 inverse = currentCoordMatrix.GetInverseTransform();
AZ::Matrix4x4 adjustmatrix = targetCoordMatrix * currentCoordMatrix.GetInverseTransform();
m_adjustTransform.reset(new DataTypes::MatrixType(AssImpSDKWrapper::AssImpTypeConverter::ToTransform(adjustmatrix)));
m_adjustTransformInverse.reset(new DataTypes::MatrixType(m_adjustTransform->GetInverseFull()));
}
}
void SceneSystem::SwapVec3ForUpAxis(Vector3& swapVector) const
{
if (m_adjustTransform)
{
swapVector = *m_adjustTransform * swapVector;
}
}
void SceneSystem::SwapTransformForUpAxis(DataTypes::MatrixType& inOutTransform) const
{
if (m_adjustTransform)
{
inOutTransform = (*m_adjustTransform * inOutTransform) * *m_adjustTransformInverse;
}
}
void SceneSystem::ConvertUnit(Vector3& scaleVector) const
{
scaleVector *= m_unitSizeInMeters;
}
void SceneSystem::ConvertUnit(DataTypes::MatrixType& inOutTransform) const
{
Vector3 translation = inOutTransform.GetTranslation();
translation *= m_unitSizeInMeters;
inOutTransform.SetTranslation(translation);
}
void SceneSystem::ConvertBoneUnit(DataTypes::MatrixType& inOutTransform) const
{
// Need to scale translation explicitly as MultiplyByScale won't change the translation component
// and we need to convert to meter unit
Vector3 translation = inOutTransform.GetTranslation();
translation *= m_unitSizeInMeters;
inOutTransform.SetTranslation(translation);
}
}
}