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viewport: wire up the backface-culling setting

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The "Backface Culling" checkbox persisted a value and reflected it, but
nothing consumed AppSettings::backfaceCulling — the opaque pipeline
hardcoded cullMode = Back, so toggling had no effect.

Build a second opaque pipeline (cullMode None) alongside the culled one and
pick between them per-frame from a backface_culling_ flag; setBackfaceCulling
flips the flag and requests a redraw (no rebuild). ViewportWindow forwards
it, and MainWindow applies the persisted value at startup and re-applies on
change — same wiring as the nav preset.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Dion Moult
2026-07-09 17:23:48 +10:00
parent ed21dd7ecc
commit 9ccbcc2216
5 changed files with 45 additions and 2 deletions
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src/bonsaiviewer/MainWindow.cpp
+9
View File
@@ -510,6 +510,15 @@ void MainWindow::setupStatus() {
vp->applyNavPreset(AppSettings::navPresetName(preset));
});
// Backface culling: apply the persisted choice and re-apply live on change.
if (auto* vp = viewport_widget_->viewport())
vp->setBackfaceCulling(AppSettings::instance().backfaceCulling());
connect(&AppSettings::instance(), &AppSettings::backfaceCullingChanged, this,
[this](bool enabled) {
if (auto* vp = viewport_widget_->viewport())
vp->setBackfaceCulling(enabled);
});
connect(session_state_, &bonsaiviewer::SessionState::statusMessageChanged,
this, [this](const QString& mode, const QString& detail) {
status_mode_label_->setText(mode);