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example: ++scene effect

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This commit is contained in:
Hermet Park 2024-10-22 15:27:11 +09:00
parent 2d47585c98
commit 98700ed2d2
1 changed files with 51 additions and 13 deletions
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64
examples/SceneEffect.cpp
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@ -28,22 +28,55 @@
struct UserExample : tvgexam::Example
{
tvg::Scene* pScene = nullptr;
tvg::Scene* pScene1 = nullptr; //direction both
tvg::Scene* pScene2 = nullptr; //direction horizontal
tvg::Scene* pScene3 = nullptr; //direction vertical
bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override
{
if (!canvas) return false;
//Prepare a scene for post effects.
auto scene = tvg::Scene::gen();
pScene = scene.get();
//Prepare a scene for post effects (direction both)
{
auto scene = tvg::Scene::gen();
pScene1 = scene.get();
auto picture = tvg::Picture::gen();
picture->load(EXAMPLE_DIR"/svg/tiger.svg");
picture->size(w, h);
auto picture = tvg::Picture::gen();
picture->load(EXAMPLE_DIR"/svg/tiger.svg");
picture->size(w / 2, h / 2);
scene->push(std::move(picture));
canvas->push(std::move(scene));
}
//Prepare a scene for post effects (direction horizontal)
{
auto scene = tvg::Scene::gen();
pScene2 = scene.get();
auto picture = tvg::Picture::gen();
picture->load(EXAMPLE_DIR"/svg/tiger.svg");
picture->size(w / 2, h / 2);
picture->translate(w / 2, 0);
scene->push(std::move(picture));
canvas->push(std::move(scene));
}
//Prepare a scene for post effects (direction vertical)
{
auto scene = tvg::Scene::gen();
pScene3 = scene.get();
auto picture = tvg::Picture::gen();
picture->load(EXAMPLE_DIR"/svg/tiger.svg");
picture->size(w / 2, h / 2);
picture->translate(0, h / 2);
scene->push(std::move(picture));
canvas->push(std::move(scene));
}
scene->push(std::move(picture));
canvas->push(std::move(scene));
return true;
}
@ -57,12 +90,17 @@ struct UserExample : tvgexam::Example
auto progress = tvgexam::progress(elapsed, 2.5f, true); //2.5 seconds
//Clear the previously applied effects
pScene->push(tvg::SceneEffect::ClearAll);
pScene1->push(tvg::SceneEffect::ClearAll);
//Apply GaussianBlur post effect (sigma, direction, border option, quality)
pScene->push(tvg::SceneEffect::GaussianBlur, 10.0f * progress, 0, 0, 100);
pScene1->push(tvg::SceneEffect::GaussianBlur, 10.0f * progress, 0, 0, 100);
canvas->update(pScene);
pScene2->push(tvg::SceneEffect::ClearAll);
pScene2->push(tvg::SceneEffect::GaussianBlur, 10.0f * progress, 1, 0, 100);
pScene3->push(tvg::SceneEffect::ClearAll);
pScene3->push(tvg::SceneEffect::GaussianBlur, 10.0f * progress, 2, 0, 100);
canvas->update();
return true;
}