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-/*************************************************************************/
-/* pivot_transform.cpp */
-/*************************************************************************/
-/* This file is part of: */
-/* GODOT ENGINE */
-/* https://godotengine.org */
-/*************************************************************************/
-/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
-/* */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the */
-/* "Software"), to deal in the Software without restriction, including */
-/* without limitation the rights to use, copy, modify, merge, publish, */
-/* distribute, sublicense, and/or sell copies of the Software, and to */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions: */
-/* */
-/* The above copyright notice and this permission notice shall be */
-/* included in all copies or substantial portions of the Software. */
-/* */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
-/*************************************************************************/
-
-#include "pivot_transform.h"
-
-#include "tools/import_utils.h"
-
-void PivotTransform::ReadTransformChain() {
- const FBXDocParser::PropertyTable *props = fbx_model;
- const FBXDocParser::Model::RotOrder &rot = fbx_model->RotationOrder();
- const FBXDocParser::TransformInheritance &inheritType = fbx_model->InheritType();
- inherit_type = inheritType; // copy the inherit type we need it in the second step.
- print_verbose("Model: " + String(fbx_model->Name().c_str()) + " Has inherit type: " + itos(fbx_model->InheritType()));
- bool ok = false;
- raw_pre_rotation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "PreRotation", ok));
- if (ok) {
- pre_rotation = ImportUtils::EulerToQuaternion(rot, ImportUtils::deg2rad(raw_pre_rotation));
- print_verbose("valid pre_rotation: " + raw_pre_rotation + " euler conversion: " + (pre_rotation.get_euler() * (180 / Math_PI)));
- }
- raw_post_rotation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "PostRotation", ok));
- if (ok) {
- post_rotation = ImportUtils::EulerToQuaternion(FBXDocParser::Model::RotOrder_EulerXYZ, ImportUtils::deg2rad(raw_post_rotation));
- print_verbose("valid post_rotation: " + raw_post_rotation + " euler conversion: " + (pre_rotation.get_euler() * (180 / Math_PI)));
- }
- const Vector3 &RotationPivot = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "RotationPivot", ok));
- if (ok) {
- rotation_pivot = ImportUtils::FixAxisConversions(RotationPivot);
- }
- const Vector3 &RotationOffset = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "RotationOffset", ok));
- if (ok) {
- rotation_offset = ImportUtils::FixAxisConversions(RotationOffset);
- }
- const Vector3 &ScalingOffset = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "ScalingOffset", ok));
- if (ok) {
- scaling_offset = ImportUtils::FixAxisConversions(ScalingOffset);
- }
- const Vector3 &ScalingPivot = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "ScalingPivot", ok));
- if (ok) {
- scaling_pivot = ImportUtils::FixAxisConversions(ScalingPivot);
- }
- const Vector3 &Translation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "Lcl Translation", ok));
- if (ok) {
- translation = ImportUtils::FixAxisConversions(Translation);
- }
- raw_rotation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "Lcl Rotation", ok));
- if (ok) {
- rotation = ImportUtils::EulerToQuaternion(rot, ImportUtils::deg2rad(raw_rotation));
- }
- const Vector3 &Scaling = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "Lcl Scaling", ok));
- if (ok) {
- scaling = Scaling;
- } else {
- scaling = Vector3(1, 1, 1);
- }
- const Vector3 &GeometricScaling = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "GeometricScaling", ok));
- if (ok) {
- geometric_scaling = GeometricScaling;
- } else {
- geometric_scaling = Vector3(1, 1, 1);
- }
-
- const Vector3 &GeometricRotation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "GeometricRotation", ok));
- if (ok) {
- geometric_rotation = ImportUtils::EulerToQuaternion(rot, ImportUtils::deg2rad(GeometricRotation));
- } else {
- geometric_rotation = Quaternion();
- }
-
- const Vector3 &GeometricTranslation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "GeometricTranslation", ok));
- if (ok) {
- geometric_translation = ImportUtils::FixAxisConversions(GeometricTranslation);
- } else {
- geometric_translation = Vector3(0, 0, 0);
- }
-
- if (geometric_rotation != Quaternion()) {
- print_error("geometric rotation is unsupported!");
- //CRASH_COND(true);
- }
-
- if (!geometric_scaling.is_equal_approx(Vector3(1, 1, 1))) {
- print_error("geometric scaling is unsupported!");
- //CRASH_COND(true);
- }
-
- if (!geometric_translation.is_equal_approx(Vector3(0, 0, 0))) {
- print_error("geometric translation is unsupported.");
- //CRASH_COND(true);
- }
-}
-
-Transform3D PivotTransform::ComputeLocalTransform(Vector3 p_translation, Quaternion p_rotation, Vector3 p_scaling) const {
- Transform3D T, Roff, Rp, Soff, Sp, S;
-
- // Here I assume this is the operation which needs done.
- // Its WorldTransform * V
-
- // Origin pivots
- T.set_origin(p_translation);
- Roff.set_origin(rotation_offset);
- Rp.set_origin(rotation_pivot);
- Soff.set_origin(scaling_offset);
- Sp.set_origin(scaling_pivot);
-
- // Scaling node
- S.scale(p_scaling);
- // Rotation pivots
- Transform3D Rpre = Transform3D(pre_rotation);
- Transform3D R = Transform3D(p_rotation);
- Transform3D Rpost = Transform3D(post_rotation);
-
- return T * Roff * Rp * Rpre * R * Rpost.affine_inverse() * Rp.affine_inverse() * Soff * Sp * S * Sp.affine_inverse();
-}
-
-Transform3D PivotTransform::ComputeGlobalTransform(Transform3D t) const {
- Vector3 pos = t.origin;
- Vector3 scale = t.basis.get_scale();
- Quaternion rot = t.basis.get_rotation_quaternion();
- return ComputeGlobalTransform(pos, rot, scale);
-}
-
-Transform3D PivotTransform::ComputeLocalTransform(Transform3D t) const {
- Vector3 pos = t.origin;
- Vector3 scale = t.basis.get_scale();
- Quaternion rot = t.basis.get_rotation_quaternion();
- return ComputeLocalTransform(pos, rot, scale);
-}
-
-Transform3D PivotTransform::ComputeGlobalTransform(Vector3 p_translation, Quaternion p_rotation, Vector3 p_scaling) const {
- Transform3D T, Roff, Rp, Soff, Sp, S;
-
- // Here I assume this is the operation which needs done.
- // Its WorldTransform * V
-
- // Origin pivots
- T.set_origin(p_translation);
- Roff.set_origin(rotation_offset);
- Rp.set_origin(rotation_pivot);
- Soff.set_origin(scaling_offset);
- Sp.set_origin(scaling_pivot);
-
- // Scaling node
- S.scale(p_scaling);
-
- // Rotation pivots
- Transform3D Rpre = Transform3D(pre_rotation);
- Transform3D R = Transform3D(p_rotation);
- Transform3D Rpost = Transform3D(post_rotation);
-
- Transform3D parent_global_xform;
- Transform3D parent_local_scaling_m;
-
- if (parent_transform.is_valid()) {
- parent_global_xform = parent_transform->GlobalTransform;
- parent_local_scaling_m = parent_transform->Local_Scaling_Matrix;
- }
-
- Transform3D local_rotation_m, parent_global_rotation_m;
- Quaternion parent_global_rotation = parent_global_xform.basis.get_rotation_quaternion();
- parent_global_rotation_m.basis.set_quaternion(parent_global_rotation);
- local_rotation_m = Rpre * R * Rpost;
-
- //Basis parent_global_rotation = Basis(parent_global_xform.get_basis().get_rotation_quaternion().normalized());
-
- Transform3D local_shear_scaling, parent_shear_scaling, parent_shear_rotation, parent_shear_translation;
- Vector3 parent_translation = parent_global_xform.get_origin();
- parent_shear_translation.origin = parent_translation;
- parent_shear_rotation = parent_shear_translation.affine_inverse() * parent_global_xform;
- parent_shear_scaling = parent_global_rotation_m.affine_inverse() * parent_shear_rotation;
- local_shear_scaling = S;
-
- // Inherit type handler - we don't care about T here, just reordering RSrs etc.
- Transform3D global_rotation_scale;
- if (inherit_type == FBXDocParser::Transform_RrSs) {
- global_rotation_scale = parent_global_rotation_m * local_rotation_m * parent_shear_scaling * local_shear_scaling;
- } else if (inherit_type == FBXDocParser::Transform_RSrs) {
- global_rotation_scale = parent_global_rotation_m * parent_shear_scaling * local_rotation_m * local_shear_scaling;
- } else if (inherit_type == FBXDocParser::Transform_Rrs) {
- Transform3D parent_global_shear_m_noLocal = parent_shear_scaling * parent_local_scaling_m.affine_inverse();
- global_rotation_scale = parent_global_rotation_m * local_rotation_m * parent_global_shear_m_noLocal * local_shear_scaling;
- }
- Transform3D local_transform = T * Roff * Rp * Rpre * R * Rpost.affine_inverse() * Rp.affine_inverse() * Soff * Sp * S * Sp.affine_inverse();
- //Transform3D local_translation_pivoted = Transform3D(Basis(), LocalTransform.origin);
-
- ERR_FAIL_COND_V_MSG(local_transform.basis.determinant() == 0, Transform3D(), "Det == 0 prevented in scene file");
-
- // manual hack to force SSC not to be compensated for - until we can handle it properly with tests
- return parent_global_xform * local_transform;
-}
-
-void PivotTransform::ComputePivotTransform() {
- Transform3D T, Roff, Rp, Soff, Sp, S;
-
- // Here I assume this is the operation which needs done.
- // Its WorldTransform * V
-
- // Origin pivots
- T.set_origin(translation);
- Roff.set_origin(rotation_offset);
- Rp.set_origin(rotation_pivot);
- Soff.set_origin(scaling_offset);
- Sp.set_origin(scaling_pivot);
-
- // Scaling node
- if (!scaling.is_equal_approx(Vector3())) {
- S.scale(scaling);
- } else {
- S.scale(Vector3(1, 1, 1));
- }
- Local_Scaling_Matrix = S; // copy for when node / child is looking for the value of this.
-
- // Rotation pivots
- Transform3D Rpre = Transform3D(pre_rotation);
- Transform3D R = Transform3D(rotation);
- Transform3D Rpost = Transform3D(post_rotation);
-
- Transform3D parent_global_xform;
- Transform3D parent_local_scaling_m;
-
- if (parent_transform.is_valid()) {
- parent_global_xform = parent_transform->GlobalTransform;
- parent_local_scaling_m = parent_transform->Local_Scaling_Matrix;
- }
-
- Transform3D local_rotation_m, parent_global_rotation_m;
- Quaternion parent_global_rotation = parent_global_xform.basis.get_rotation_quaternion();
- parent_global_rotation_m.basis.set_quaternion(parent_global_rotation);
- local_rotation_m = Rpre * R * Rpost;
-
- //Basis parent_global_rotation = Basis(parent_global_xform.get_basis().get_rotation_quaternion().normalized());
-
- Transform3D local_shear_scaling, parent_shear_scaling, parent_shear_rotation, parent_shear_translation;
- Vector3 parent_translation = parent_global_xform.get_origin();
- parent_shear_translation.origin = parent_translation;
- parent_shear_rotation = parent_shear_translation.affine_inverse() * parent_global_xform;
- parent_shear_scaling = parent_global_rotation_m.affine_inverse() * parent_shear_rotation;
- local_shear_scaling = S;
-
- // Inherit type handler - we don't care about T here, just reordering RSrs etc.
- Transform3D global_rotation_scale;
- if (inherit_type == FBXDocParser::Transform_RrSs) {
- global_rotation_scale = parent_global_rotation_m * local_rotation_m * parent_shear_scaling * local_shear_scaling;
- } else if (inherit_type == FBXDocParser::Transform_RSrs) {
- global_rotation_scale = parent_global_rotation_m * parent_shear_scaling * local_rotation_m * local_shear_scaling;
- } else if (inherit_type == FBXDocParser::Transform_Rrs) {
- Transform3D parent_global_shear_m_noLocal = parent_shear_scaling * parent_local_scaling_m.inverse();
- global_rotation_scale = parent_global_rotation_m * local_rotation_m * parent_global_shear_m_noLocal * local_shear_scaling;
- }
- LocalTransform = Transform3D();
- LocalTransform = T * Roff * Rp * Rpre * R * Rpost.affine_inverse() * Rp.affine_inverse() * Soff * Sp * S * Sp.affine_inverse();
-
- ERR_FAIL_COND_MSG(LocalTransform.basis.determinant() == 0, "invalid scale reset");
-
- Transform3D local_translation_pivoted = Transform3D(Basis(), LocalTransform.origin);
- GlobalTransform = Transform3D();
- //GlobalTransform = parent_global_xform * LocalTransform;
- Transform3D global_origin = Transform3D(Basis(), parent_translation);
- GlobalTransform = (global_origin * local_translation_pivoted) * global_rotation_scale;
-
- ImportUtils::debug_xform("local xform calculation", LocalTransform);
- print_verbose("scale of node: " + S.basis.get_scale_local());
- print_verbose("---------------------------------------------------------------");
-}
-
-void PivotTransform::Execute() {
- ReadTransformChain();
- ComputePivotTransform();
-
- ImportUtils::debug_xform("global xform: ", GlobalTransform);
-
- if (LocalTransform.basis.determinant() == 0) {
- print_error("Serious det == 0!");
- }
-
- if (GlobalTransform.basis.determinant() == 0) {
- print_error("Serious! node has det == 0!");
- }
-
- computed_global_xform = true;
-}