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Smooth out the fading of background textures on the main menu

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This commit is contained in:
Henrik Rydgård
2026-03-15 11:30:43 +01:00
parent c4b81a37a4
commit e5cd4d69e9
2 changed files with 15 additions and 2 deletions
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UI/MainScreen.cpp
+14 -2
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@@ -1619,14 +1619,21 @@ void MainScreen::OnLoadFile(UI::EventParams &e) {
}
void MainScreen::DrawBackground(UIContext &dc) {
if (highlightedBackgrounds_.empty()) {
return;
}
constexpr float fadeTime = 0.5f; //
double now = time_now_d();
for (auto iter = highlightedBackgrounds_.begin(); iter != highlightedBackgrounds_.end(); ) {
float timeSinceStart = float(now - iter->startTime);
std::shared_ptr<GameInfo> ginfo;
ginfo = g_gameInfoCache->GetInfo(dc.GetDrawContext(), iter->gamePath, GameInfoFlags::PIC1);
float timeSinceStart = float(now - std::max(iter->startTime, ginfo->pic1.timeLoaded));
float alpha = std::clamp(timeSinceStart / fadeTime, 0.0f, 1.0f);
if (iter->endTime > 0.0) {
// TODO: Consider only fading out if it's the last one in the list, to avoid background shine-through.
float fadeOutAlpha = std::max(0.0f, float(now - iter->endTime) / fadeTime);
if (fadeOutAlpha > 1.0f) {
iter = highlightedBackgrounds_.erase(iter);
@@ -1634,8 +1641,13 @@ void MainScreen::DrawBackground(UIContext &dc) {
}
alpha *= 1.0f - fadeOutAlpha;
}
DrawBackgroundFor(dc, iter->gamePath, alpha);
iter++;
if (!ginfo->pic1.texture) {
continue;
}
DrawBackgroundTexture(dc, ginfo->pic1.texture, Lin::Vec3(0.0f, 0.0f, 0.0f), alpha);
}
}