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example: update EffectGaussianBlur

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Hermet Park 2024-12-04 19:22:33 +09:00 • committed by Hermet Park
parent 445000ba66
commit a2d2b3f07c
1 changed files with 14 additions and 47 deletions
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57
examples/EffectGaussianBlur.cpp
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@ -28,53 +28,24 @@
struct UserExample : tvgexam::Example
{
tvg::Scene* scene1 = nullptr; //direction both
tvg::Scene* scene2 = nullptr; //direction horizontal
tvg::Scene* scene3 = nullptr; //direction vertical
tvg::Scene* scene[3] = {nullptr, nullptr, nullptr}; //(for direction both, horizontal, vertical)
bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override
{
if (!canvas) return false;
//Prepare a scene for post effects (direction both)
{
scene1 = tvg::Scene::gen();
for (int i = 0; i < 3; ++i) {
scene[i] = tvg::Scene::gen();
auto picture = tvg::Picture::gen();
picture->load(EXAMPLE_DIR"/svg/tiger.svg");
picture->size(w / 2, h / 2);
picture->size(w / 3, h);
picture->translate((w / 3) * i, 0);
scene1->push(picture);
canvas->push(scene1);
scene[i]->push(picture);
canvas->push(scene[i]);
}
//Prepare a scene for post effects (direction horizontal)
{
scene2 = tvg::Scene::gen();
auto picture = tvg::Picture::gen();
picture->load(EXAMPLE_DIR"/svg/tiger.svg");
picture->size(w / 2, h / 2);
picture->translate(w / 2, 0);
scene2->push(picture);
canvas->push(scene2);
}
//Prepare a scene for post effects (direction vertical)
{
scene3 = tvg::Scene::gen();
auto picture = tvg::Picture::gen();
picture->load(EXAMPLE_DIR"/svg/tiger.svg");
picture->size(w / 2, h / 2);
picture->translate(0, h / 2);
scene3->push(picture);
canvas->push(scene3);
}
return true;
}
@ -86,16 +57,12 @@ struct UserExample : tvgexam::Example
auto progress = tvgexam::progress(elapsed, 2.5f, true); //2.5 seconds
for (int i = 0; i < 3; ++i) {
//Clear the previously applied effects
scene1->push(tvg::SceneEffect::ClearAll);
scene[i]->push(tvg::SceneEffect::ClearAll);
//Apply GaussianBlur post effect (sigma, direction, border option, quality)
scene1->push(tvg::SceneEffect::GaussianBlur, 10.0f * progress, 0, 0, 100);
scene2->push(tvg::SceneEffect::ClearAll);
scene2->push(tvg::SceneEffect::GaussianBlur, 10.0f * progress, 1, 0, 100);
scene3->push(tvg::SceneEffect::ClearAll);
scene3->push(tvg::SceneEffect::GaussianBlur, 10.0f * progress, 2, 0, 100);
scene[i]->push(tvg::SceneEffect::GaussianBlur, 10.0f * progress, i, 0, 100);
}
canvas->update();
@ -111,5 +78,5 @@ struct UserExample : tvgexam::Example
int main(int argc, char **argv)
{
return tvgexam::main(new UserExample, argc, argv, 800, 800, 4, true);
return tvgexam::main(new UserExample, argc, argv, 1200, 400, 4, true);
}