Aero Glassエフェクト - Siv3D/Reference-JP GitHub Wiki

# include <Siv3D.hpp>

void Main()
{
    const Image image = Dialog::OpenImage();
    const Texture texture(image);
    const Texture textureGaussian(image.gaussianBlurred(20, 20));

    Window::Resize(image.size);

    while (System::Update())
    {
        texture.draw();

        const RectF rect(Mouse::Pos(), 300, 200);

        textureGaussian(rect).draw(rect.pos);

        rect.draw(Color(255, 160));

        rect.drawFrame(1);
    }
}