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#OpenSiv3D #3D #Box #Disc #MSRenderTexture #BasicCamera3D #ScopedRenderTarget3D #Transformer3D
https://gyazo.com/29c4aae6c6dc44ffeef481fb436d524d
Web版 (22.2MB)
code:dice.cpp
# include <Siv3D.hpp> // OpenSiv3D v0.6.11
void drawDice()
{
// ダイス本体
const double diceSize = 4.0;
Box{ 0, 0, 0, diceSize }.draw(ColorF{ 0.9, 0.9, 0.9 }.removeSRGBCurve());
// ダイスの目
constexpr std::array<std::array<Vec3, 6>, 6> dotPosition = { {
{ Vec3{ 0, 1, 0 }, },
{ Vec3{ 1, -0.6, -0.6 }, Vec3{ 1, 0.6, 0.6 }, },
{ Vec3{ -0.6, -0.6, 1 }, Vec3{ 0, 0, 1 }, Vec3{ 0.6, 0.6, 1 }, },
{ Vec3{ -0.6, -0.6, -1 }, Vec3{ 0.6, 0.6, -1 }, Vec3{ -0.6, 0.6, -1 }, Vec3{ 0.6, -0.6, -1 }, },
{ Vec3{ -1, -0.6, -0.6 }, Vec3{ -1, 0.6, 0.6 }, Vec3{ -1, 0.6, -0.6 }, Vec3{ -1, -0.6, 0.6 }, Vec3{ -1, 0, 0 }, },
{ Vec3{ -0.6, -1, -0.6 }, Vec3{ -0.6, -1, 0 }, Vec3{ -0.6, -1, 0.6 }, Vec3{ 0.6, -1, -0.6 }, Vec3{ 0.6, -1, 0 }, Vec3{ 0.6, -1, 0.6 } },
} };
constexpr std::array<Vec3, 6> dotRotation = {
Vec3{ 0, 0, 0 }, Vec3{ 0, 0, -90_deg }, Vec3{ 90_deg, 0, 0 }, Vec3{ -90_deg, 0, 0 }, Vec3{ 0, 0, 90_deg }, Vec3{ 180_deg, 0, 0 },
};
constexpr std::array<double, 6> dotSizeScale = {
1.2, 1, 1, 1, 1, 1,
};
constexpr std::array<Color, 6> dotColor = {
Palette::Darkred, Palette::Black, Palette::Black, Palette::Black, Palette::Black, Palette::Black,
};
for (int i : step(6))
{
const int nDots = i + 1;
for (int j : step(nDots))
{
const double dotSize = 0.4;
const auto mat = Mat4x4::RollPitchYaw(dotRotationi.x, dotRotationi.y, dotRotationi.z)
.translated(dotPositionij * (diceSize / 2 + 0.0001));
Disc{ dotSize * dotSizeScalei }.draw(mat, dotColori);
}
}
}
void Main()
{
const ColorF bgColor = ColorF{ 0.1, 0.15, 0.2 }.removeSRGBCurve();
const MSRenderTexture renderTexture{ Scene::Size(), TextureFormat::R8G8B8A8_Unorm_SRGB, HasDepth::Yes };
Graphics3D::SetGlobalAmbientColor(ColorF{ 0.6, 0.65, 0.7 });
BasicCamera3D camera{ renderTexture.size(), 30_deg };
while (System::Update())
{
const double angle = Scene::Time() * 0.3;
camera.setView(Vec3{ 28 * Math::Cos(angle), 16, 28 * Math::Sin(angle) }, Vec3{});
Graphics3D::SetCameraTransform(camera);
{
const ScopedRenderTarget3D target{ renderTexture.clear(bgColor) };
{
const auto mat = Mat4x4::RollPitchYaw(0.5 * Scene::Time(), 0.1 * Scene::Time(), 0.8 * Scene::Time());
const Transformer3D transformer{ mat };
drawDice();
}
}
{
Graphics3D::Flush();
renderTexture.resolve();
Shader::LinearToScreen(renderTexture);
}
}
}