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Add gear icon toolbar button with viewport options dropdown

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Adds a ⚙ icon button to the right of the AA toggle in each viewport
tile's compact toolbar.  Clicking it opens a dropdown with:
  - Shading submenu: Smooth Shaded / Flat Shaded / Wireframe on Surface /
    Wireframe / Unlit  (new ShadingMode enum driving UsdImagingGLDrawMode)
  - Lighting submenu: Camera Headlight / Scene Lights + Dome Light toggle
  - Show Grid and Anti-Aliasing toggles (mirrored from icon buttons)
  - Bounding Box submenu: None / Per Object / All Selection
  - Background submenu: Dark Gray / Black / Light Gray / Midnight Blue

ShadingMode is persisted in viewport_settings.ini alongside the existing
per-tile settings (saved on shutdown, restored on startup).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
indigo
2026-06-25 09:56:49 +08:00
parent 9d8840ced6
commit 8316e419ba
8 changed files with 137 additions and 3 deletions
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src/core/UsdSceneRenderer.cpp
+19 -2
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@@ -131,6 +131,7 @@ UsdSceneRenderer::UsdSceneRenderer()
: m_showGrid(true)
, m_aaEnabled(false)
, m_backgroundColor(0.15f, 0.15f, 0.15f)
, m_shadingMode(ShadingMode::SmoothShaded)
, m_ambientLightOnly(true)
, m_domeLightEnabled(false)
, m_stageIsZup(false)
@@ -616,11 +617,27 @@ void UsdSceneRenderer::Render(int width, int height)
m_renderParams = pxr::UsdImagingGLRenderParams();
m_renderParams.frame = m_currentTime;
m_renderParams.complexity = 1.0f;
m_renderParams.drawMode = pxr::UsdImagingGLDrawMode::DRAW_SHADED_SMOOTH;
// Apply shading mode → drawMode + enableLighting
switch (m_shadingMode) {
case ShadingMode::FlatShaded:
m_renderParams.drawMode = pxr::UsdImagingGLDrawMode::DRAW_SHADED_FLAT;
m_renderParams.enableLighting = true; break;
case ShadingMode::WireframeOnSurface:
m_renderParams.drawMode = pxr::UsdImagingGLDrawMode::DRAW_WIREFRAME_ON_SURFACE;
m_renderParams.enableLighting = true; break;
case ShadingMode::Wireframe:
m_renderParams.drawMode = pxr::UsdImagingGLDrawMode::DRAW_WIREFRAME;
m_renderParams.enableLighting = false; break;
case ShadingMode::Unlit:
m_renderParams.drawMode = pxr::UsdImagingGLDrawMode::DRAW_SHADED_SMOOTH;
m_renderParams.enableLighting = false; break;
default: // SmoothShaded
m_renderParams.drawMode = pxr::UsdImagingGLDrawMode::DRAW_SHADED_SMOOTH;
m_renderParams.enableLighting = true; break;
}
m_renderParams.showGuides = true;
m_renderParams.showProxy = true;
m_renderParams.showRender = false;
m_renderParams.enableLighting = true;
m_renderParams.enableSampleAlphaToCoverage = true;
m_renderParams.gammaCorrectColors = false;
m_renderParams.cullStyle = pxr::UsdImagingGLCullStyle::CULL_STYLE_BACK_UNLESS_DOUBLE_SIDED;