WIP root bone transform calc
Martin Felis
parent
d4f9459060
commit
6aabe98931
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@ -43,6 +43,14 @@ void AnimSamplerNode::Evaluate(
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if (!sampling_job.Run()) {
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ozz::log::Err() << "Error sampling animation." << std::endl;
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}
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ozz::vector<ozz::math::SoaTransform> root_bone_cur;
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root_bone_prev.push_back(ozz::math::SoaTransform());
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sampling_job.ratio = m_anim_ratio;
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sampling_job.output = make_span (root_bone_cur);
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if (!sampling_job.Run()) {
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ozz::log::Err() << "Error sampling animation." << std::endl;
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}
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ozz::math::SoaFloat3 translation =
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root_bone_prev[m_root_bone_index].translation;
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@ -61,6 +69,10 @@ void AnimSamplerNode::Evaluate(
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_mm_store_ps(root_current_trans_x, translation.x);
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_mm_store_ps(root_current_trans_y, translation.y);
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_mm_store_ps(root_current_trans_z, translation.z);
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root_transform->translation.x = root_current_trans_x[0];
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root_transform->translation.y = root_current_trans_y[0];
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root_transform->translation.z = root_current_trans_z[0];
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}
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void AnimSamplerNode::DrawDebugUi() {
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@ -3,16 +3,169 @@
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//
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#include "AnimNodes/AnimSamplerNode.h"
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#define OZZ_INCLUDE_PRIVATE_HEADER
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#include "../src/animation/runtime/animation_keyframe.h"
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#include "catch.hpp"
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TEST_CASE("AnimSamplerNode", "[AnimSamplerNode]") {
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void get_bone_transform(
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int i_bone_idx,
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const ozz::vector<ozz::math::SoaTransform>& i_local_matrices,
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ozz::math::Transform& o_transform) {
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int matrix_index = i_bone_idx / 4;
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short simd_component = i_bone_idx % 4;
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o_transform.translation.x =
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i_local_matrices[matrix_index].translation.x[simd_component];
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o_transform.translation.y =
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i_local_matrices[matrix_index].translation.y[simd_component];
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o_transform.translation.z =
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i_local_matrices[matrix_index].translation.z[simd_component];
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}
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void sample_bone_transform(
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float ratio,
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int i_bone_idx,
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const ozz::animation::Animation* i_animation,
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ozz::animation::SamplingCache& io_cache,
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ozz::vector<ozz::math::SoaTransform>& io_local_matrices,
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ozz::math::Transform& o_transform) {
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ozz::animation::SamplingJob sampling_job;
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sampling_job.animation = i_animation;
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sampling_job.cache = &io_cache;
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sampling_job.ratio = ratio;
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sampling_job.output = make_span(io_local_matrices);
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if (!sampling_job.Run()) {
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ozz::log::Err() << "Error sampling animation." << std::endl;
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}
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get_bone_transform(i_bone_idx, io_local_matrices, o_transform);
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}
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void calc_bone_translation(
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float ratio,
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int i_bone_idx,
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const ozz::animation::Animation* i_animation,
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ozz::math::Transform& o_transform) {
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int key_idx = 0;
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const ozz::span<const ozz::animation::Float3Key>& translations =
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i_animation->translations();
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int key_idx_prev = 0;
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int key_idx_next = 0;
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while (key_idx < translations.size()) {
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key_idx_next = key_idx;
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if (translations[key_idx].track == i_bone_idx) {
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if (translations[key_idx].ratio < ratio) {
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key_idx_prev = key_idx;
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} else {
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break;
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}
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}
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key_idx++;
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}
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const ozz::animation::Float3Key& key_prev = translations[key_idx_prev];
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const ozz::animation::Float3Key& key_next = translations[key_idx_next];
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float r = 0.f;
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if (key_prev.ratio != key_next.ratio) {
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r = (ratio - key_prev.ratio) / (key_next.ratio - key_prev.ratio);
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}
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o_transform.translation.x =
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ozz::math::HalfToFloat(key_prev.value[0])
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+ r
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* (ozz::math::HalfToFloat(key_next.value[0])
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- ozz::math::HalfToFloat(key_prev.value[0]));
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o_transform.translation.y =
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ozz::math::HalfToFloat(key_prev.value[1])
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+ r
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* (ozz::math::HalfToFloat(key_next.value[1])
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- ozz::math::HalfToFloat(key_prev.value[1]));
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o_transform.translation.z =
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ozz::math::HalfToFloat(key_prev.value[2])
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+ r
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* (ozz::math::HalfToFloat(key_next.value[2])
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- ozz::math::HalfToFloat(key_prev.value[2]));
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}
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TEST_CASE("Sample single bone channel", "[AnimSamplerNode]") {
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SkinnedMesh skinned_mesh;
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skinned_mesh.LoadSkeleton("../media/MixamoYBot-skeleton.ozz");
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skinned_mesh.LoadAnimation("../media/Walking-loop.ozz");
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ozz::animation::Animation* animation = skinned_mesh.m_animations[0];
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const int num_soa_joints = skinned_mesh.m_skeleton.num_soa_joints();
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const int num_joints = skinned_mesh.m_skeleton.num_joints();
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ozz::vector<ozz::math::SoaTransform> local_matrices;
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ozz::animation::SamplingCache sampling_cache;
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local_matrices.resize(num_soa_joints);
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sampling_cache.Resize(num_joints);
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// sample at ratio 0.
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float ratio = 0.f;
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ozz::animation::SamplingJob sampling_job;
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sampling_job.animation = animation;
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sampling_job.cache = &sampling_cache;
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sampling_job.ratio = ratio;
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sampling_job.output = make_span(local_matrices);
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if (!sampling_job.Run()) {
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ozz::log::Err() << "Error sampling animation." << std::endl;
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}
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ozz::math::Transform root_transform_0;
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sample_bone_transform(
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0.f,
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0,
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animation,
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sampling_cache,
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local_matrices,
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root_transform_0);
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int n_samples = 20;
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for (int i = 0; i <= n_samples; i++) {
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float ratio = i * 1.f / n_samples;
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ozz::math::Transform sampled_root_transform;
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sample_bone_transform(
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i * 1.f / n_samples,
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0,
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animation,
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sampling_cache,
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local_matrices,
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sampled_root_transform);
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ozz::math::Transform calculated_root_transform;
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calc_bone_translation(ratio, 0, animation, calculated_root_transform);
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std::cout << "ratio: " << ratio << "\t" << "err: " << ozz::math::Length(sampled_root_transform.translation - calculated_root_transform.translation) << std::endl;
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}
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ozz::math::Transform root_transform_1;
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calc_bone_translation(0.f, 0, animation, root_transform_0);
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calc_bone_translation(1.f, 0, animation, root_transform_1);
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}
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TEST_CASE("Root Bone Sampling", "[AnimSamplerNode]") {
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SkinnedMesh skinned_mesh;
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skinned_mesh.LoadSkeleton("../media/MixamoYBot-skeleton.ozz");
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int anim_idx = 0;
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skinned_mesh.LoadAnimation("../media/Walking-loop.ozz");
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float walking_markers[] = {0.293, 0.762};
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skinned_mesh.m_animation_sync_track[anim_idx] = SyncTrack::CreateFromMarkers(skinned_mesh.m_animations[anim_idx]->duration(), 2, walking_markers);
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skinned_mesh.m_animation_sync_track[anim_idx] = SyncTrack::CreateFromMarkers(
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skinned_mesh.m_animations[anim_idx]->duration(),
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2,
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walking_markers);
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AnimationController anim_controller(&skinned_mesh);
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AnimSamplerNode test_node (&anim_controller);
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AnimSamplerNode test_node(&anim_controller);
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test_node.SetAnimation(skinned_mesh.m_animations[0], SyncTrack());
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test_node.Reset();
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test_node.UpdateTime(0.2f);
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ozz::math::Transform root_transform;
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// test_node.Evaluate(&skinned_mesh.m_local_matrices, &root_transform);
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}
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