217 lines
8.2 KiB
C++
217 lines
8.2 KiB
C++
//----------------------------------------------------------------------------//
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// //
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// ozz-animation is hosted at http://github.com/guillaumeblanc/ozz-animation //
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// and distributed under the MIT License (MIT). //
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// //
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// Copyright (c) Guillaume Blanc //
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// //
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// Permission is hereby granted, free of charge, to any person obtaining a //
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// copy of this software and associated documentation files (the "Software"), //
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// to deal in the Software without restriction, including without limitation //
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// the rights to use, copy, modify, merge, publish, distribute, sublicense, //
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// and/or sell copies of the Software, and to permit persons to whom the //
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// Software is furnished to do so, subject to the following conditions: //
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// //
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// The above copyright notice and this permission notice shall be included in //
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// all copies or substantial portions of the Software. //
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// //
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR //
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, //
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL //
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER //
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING //
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER //
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// DEALINGS IN THE SOFTWARE. //
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// //
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//----------------------------------------------------------------------------//
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#include "framework/application.h"
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#include "framework/imgui.h"
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#include "framework/renderer.h"
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#include "framework/utils.h"
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#include "ozz/animation/runtime/animation.h"
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#include "ozz/animation/runtime/local_to_model_job.h"
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#include "ozz/animation/runtime/sampling_job.h"
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#include "ozz/animation/runtime/skeleton.h"
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#include "ozz/animation/runtime/skeleton_utils.h"
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#include "ozz/base/log.h"
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#include "ozz/base/maths/box.h"
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#include "ozz/base/maths/simd_math.h"
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#include "ozz/base/maths/soa_transform.h"
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#include "ozz/base/maths/vec_float.h"
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#include "ozz/options/options.h"
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// Skeleton archive can be specified as an option.
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OZZ_OPTIONS_DECLARE_STRING(skeleton,
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"Path to the skeleton (ozz archive format).",
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"media/skeleton.ozz", false)
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// Animation archive can be specified as an option.
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OZZ_OPTIONS_DECLARE_STRING(animation,
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"Path to the animation (ozz archive format).",
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"media/animation.ozz", false)
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class AttachSampleApplication : public ozz::sample::Application {
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public:
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AttachSampleApplication() : attachment_(0), offset_(-.02f, .03f, .05f) {}
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protected:
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// Updates current animation time and skeleton pose.
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virtual bool OnUpdate(float _dt, float) {
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// Updates current animation time.
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controller_.Update(animation_, _dt);
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// Samples optimized animation at t = animation_time_.
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ozz::animation::SamplingJob sampling_job;
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sampling_job.animation = &animation_;
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sampling_job.context = &context_;
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sampling_job.ratio = controller_.time_ratio();
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sampling_job.output = make_span(locals_);
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if (!sampling_job.Run()) {
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return false;
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}
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// Converts from local space to model space matrices.
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ozz::animation::LocalToModelJob ltm_job;
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ltm_job.skeleton = &skeleton_;
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ltm_job.input = make_span(locals_);
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ltm_job.output = make_span(models_);
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if (!ltm_job.Run()) {
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return false;
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}
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return true;
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}
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// Samples animation, transforms to model space and renders.
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virtual bool OnDisplay(ozz::sample::Renderer* _renderer) {
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if (!_renderer->DrawPosture(skeleton_, make_span(models_),
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ozz::math::Float4x4::identity())) {
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return false;
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}
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// Prepares attached object transformation.
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// Gets model space transformation of the joint.
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const ozz::math::Float4x4& joint = models_[attachment_];
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// Builds offset transformation matrix.
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const ozz::math::SimdFloat4 translation =
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ozz::math::simd_float4::Load3PtrU(&offset_.x);
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// Concatenates joint and offset transformations.
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const ozz::math::Float4x4 transform =
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joint * ozz::math::Float4x4::Translation(translation);
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// Prepare rendering.
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const float thickness = .01f;
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const float length = .5f;
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const ozz::math::Box box(ozz::math::Float3(-thickness, -thickness, -length),
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ozz::math::Float3(thickness, thickness, 0.f));
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const ozz::sample::Color colors[2] = {ozz::sample::kRed,
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ozz::sample::kGreen};
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return _renderer->DrawBoxIm(box, transform, colors);
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}
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virtual bool OnInitialize() {
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// Reading skeleton.
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if (!ozz::sample::LoadSkeleton(OPTIONS_skeleton, &skeleton_)) {
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return false;
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}
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// Reading animation.
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if (!ozz::sample::LoadAnimation(OPTIONS_animation, &animation_)) {
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return false;
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}
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// Allocates runtime buffers.
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const int num_joints = skeleton_.num_joints();
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const int num_soa_joints = skeleton_.num_soa_joints();
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locals_.resize(num_soa_joints);
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models_.resize(num_joints);
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// Allocates a context that matches animation requirements.
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context_.Resize(num_joints);
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// Finds the joint where the object should be attached.
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attachment_ = FindJoint(skeleton_, "LeftHandMiddle1");
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if (attachment_ < 0) {
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return false;
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}
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return true;
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}
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virtual void OnDestroy() {}
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virtual bool OnGui(ozz::sample::ImGui* _im_gui) {
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// Exposes animation runtime playback controls.
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{
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static bool open = true;
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ozz::sample::ImGui::OpenClose oc(_im_gui, "Animation control", &open);
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if (open) {
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controller_.OnGui(animation_, _im_gui);
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}
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}
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// Exposes selection of the attachment joint.
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{
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static bool open = true;
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ozz::sample::ImGui::OpenClose oc(_im_gui, "Attachment joint", &open);
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if (open && skeleton_.num_joints() != 0) {
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_im_gui->DoLabel("Select joint:");
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char label[64];
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std::snprintf(label, sizeof(label), "%s (%d)",
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skeleton_.joint_names()[attachment_], attachment_);
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_im_gui->DoSlider(label, 0, skeleton_.num_joints() - 1, &attachment_);
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_im_gui->DoLabel("Attachment offset:");
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std::snprintf(label, sizeof(label), "x: %02f", offset_.x);
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_im_gui->DoSlider(label, -1.f, 1.f, &offset_.x);
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std::snprintf(label, sizeof(label), "y: %02f", offset_.y);
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_im_gui->DoSlider(label, -1.f, 1.f, &offset_.y);
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std::snprintf(label, sizeof(label), "z: %02f", offset_.z);
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_im_gui->DoSlider(label, -1.f, 1.f, &offset_.z);
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}
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}
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return true;
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}
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virtual void GetSceneBounds(ozz::math::Box* _bound) const {
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ozz::sample::ComputePostureBounds(make_span(models_), _bound);
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}
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private:
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// Playback animation controller. This is a utility class that helps with
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// controlling animation playback time.
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ozz::sample::PlaybackController controller_;
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// Runtime skeleton.
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ozz::animation::Skeleton skeleton_;
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// Runtime animation.
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ozz::animation::Animation animation_;
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// Sampling context.
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ozz::animation::SamplingJob::Context context_;
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// Buffer of local transforms as sampled from animation_.
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ozz::vector<ozz::math::SoaTransform> locals_;
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// Buffer of model space matrices.
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ozz::vector<ozz::math::Float4x4> models_;
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// Joint where the object is attached.
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int attachment_;
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// Offset, translation of the attached object from the joint.
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ozz::math::Float3 offset_;
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};
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int main(int _argc, const char** _argv) {
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const char* title =
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"Ozz-animation sample: Attachment to animated skeleton joints";
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return AttachSampleApplication().Run(_argc, _argv, "1.0", title);
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}
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