[usdImagingGL,usdview] Add support to set the OCIO display, view, and colorspace

pxr/usdImaging/usdImagingGL/engine.cpp

@@ -274,7 +274,8 @@ UsdImagingGLEngine::RenderBatch(
 
     _PrepareRender(params);
 
-    SetColorCorrectionSettings(params.colorCorrectionMode);
+    SetColorCorrectionSettings(params.colorCorrectionMode, params.ocioDisplay,
+        params.ocioView, params.ocioColorSpace, params.ocioLook);
 
     // XXX App sets the clear color via 'params' instead of setting up Aovs 
     // that has clearColor in their descriptor. So for now we must pass this
@@ -1185,7 +1186,11 @@ UsdImagingGLEngine::RestartRenderer()
 //----------------------------------------------------------------------------
 void 
 UsdImagingGLEngine::SetColorCorrectionSettings(
-    TfToken const& id)
+    TfToken const& colorCorrectionMode,
+    TfToken const& ocioDisplay,
+    TfToken const& ocioView,
+    TfToken const& ocioColorSpace,
+    TfToken const& ocioLook)
 {
     if (ARCH_UNLIKELY(_legacyImpl)) {
         return;
@@ -1198,7 +1203,11 @@ UsdImagingGLEngine::SetColorCorrectionSettings(
     TF_VERIFY(_taskController);
 
     HdxColorCorrectionTaskParams hdParams;
-    hdParams.colorCorrectionMode = id;
+    hdParams.colorCorrectionMode = colorCorrectionMode;
+    hdParams.displayOCIO = ocioDisplay.GetString();
+    hdParams.viewOCIO = ocioView.GetString();
+    hdParams.colorspaceOCIO = ocioColorSpace.GetString();
+    hdParams.looksOCIO = ocioLook.GetString();
     _taskController->SetColorCorrectionParams(hdParams);
 }
 

pxr/usdImaging/usdImagingGL/engine.h

@@ -465,7 +465,11 @@ class UsdImagingGLEngine
     /// Set \p id to one of the HdxColorCorrectionTokens.
     USDIMAGINGGL_API
     void SetColorCorrectionSettings(
-        TfToken const& id);
+        TfToken const& ccType,
+        TfToken const& ocioDisplay = {},
+        TfToken const& ocioView = {},
+        TfToken const& ocioColorSpace = {},
+        TfToken const& ocioLook = {});
 
     /// @}
 

pxr/usdImaging/usdImagingGL/renderParams.h

@@ -100,7 +100,12 @@ class UsdImagingGLRenderParams
     bool enableUsdDrawModes;
     GfVec4f clearColor;
     TfToken colorCorrectionMode;
+    // Optional OCIO color setings, only valid when colorCorrectionMode==HdxColorCorrectionTokens->openColorIO
     int lut3dSizeOCIO;
+    TfToken ocioDisplay;
+    TfToken ocioView;
+    TfToken ocioColorSpace;
+    TfToken ocioLook;
 
     inline UsdImagingGLRenderParams();
 
@@ -168,6 +173,10 @@ UsdImagingGLRenderParams::operator==(const UsdImagingGLRenderParams &other)
         && enableUsdDrawModes          == other.enableUsdDrawModes
         && clearColor                  == other.clearColor
         && colorCorrectionMode         == other.colorCorrectionMode
+        && ocioDisplay                 == other.ocioDisplay
+        && ocioView                    == other.ocioView
+        && ocioColorSpace              == other.ocioColorSpace
+        && ocioLook                    == other.ocioLook
         && lut3dSizeOCIO               == other.lut3dSizeOCIO;
 }
 

pxr/usdImaging/usdImagingGL/wrapRenderParams.cpp

@@ -85,6 +85,9 @@ wrapRenderParams()
         .def_readwrite("enableUsdDrawModes", &Params::enableUsdDrawModes)
         .def_readwrite("colorCorrectionMode", &Params::colorCorrectionMode)
         .def_readwrite("clearColor", &Params::clearColor)
-        .def_readwrite("lut3dSizeOCIO", &Params::lut3dSizeOCIO)
+        .def_readwrite("ocioDisplay", &Params::ocioDisplay)
+        .def_readwrite("ocioView", &Params::ocioView)
+        .def_readwrite("ocioColorSpace", &Params::ocioColorSpace)
+        .def_readwrite("ocioLook", &Params::ocioLook)
         ;
 }

pxr/usdImaging/usdviewq/appController.py

@@ -76,7 +76,7 @@
 from .settings2 import StateSource
 from .usdviewApi import UsdviewApi
 from .rootDataModel import RootDataModel, ChangeNotice
-from .viewSettingsDataModel import ViewSettingsDataModel
+from .viewSettingsDataModel import ViewSettingsDataModel, OCIOSettings
 from . import plugin
 from .pythonInterpreter import Myconsole
 
@@ -650,6 +650,7 @@ def __init__(self, parserData, resolverContextFn):
                 self._ui.actionOpenColorIO)
             for action in self._colorCorrectionActions:
                 self._ui.colorCorrectionActionGroup.addAction(action)
+            self._ocioSettings, self._ocioMenu = None, None
 
             # XXX This should be a validator in ViewSettingsDataModel.
             if self._dataModel.viewSettings.renderMode not in RenderModes:
@@ -942,7 +943,7 @@ def __init__(self, parserData, resolverContextFn):
             self._ui.renderModeActionGroup.triggered.connect(self._changeRenderMode)
 
             self._ui.colorCorrectionActionGroup.triggered.connect(
-                self._changeColorCorrection)
+                lambda mode: self._changeColorCorrection(str(mode.text())))
 
             self._ui.pickModeActionGroup.triggered.connect(self._changePickMode)
 
@@ -1671,6 +1672,63 @@ def _configureColorManagement(self):
                       UsdImagingGL.Engine.IsColorCorrectionCapable())
         self._ui.menuColorCorrection.setEnabled(enableMenu)
 
+        try:
+            import PyOpenColorIO as OCIO
+            config = OCIO.GetCurrentConfig()
+            ocioMenu = QtWidgets.QMenu('OpenColorIO')
+            colorSpaceMenu = QtWidgets.QMenu('ColorSpace')
+            #looksMenu = QtWidgets.QMenu('Looks')
+            colorSpaceMap = {}
+
+            def addAction(menu, name):
+                action = menu.addAction(name)
+                action.setCheckable(True)
+                return action
+
+            def setColorSpace(action):
+                if self._ocioSettings._colorSpace:
+                    self._ocioSettings._colorSpace.setChecked(False)
+                self._ocioSettings._colorSpace = action
+                self._changeColorCorrection(ColorCorrectionModes.OPENCOLORIO)
+                self._refreshColorCorrectionModeMenu()
+                self._dataModel.viewSettings.setOCIOConfig(action.text())
+
+            def setOCIO(action):
+                if self._ocioSettings._view:
+                    self._ocioSettings._view.setChecked(False)
+                self._ocioSettings._display, self._ocioSettings._view = action.parent(), action
+                # Reset the colorspace to the display & view default
+                display = self._ocioSettings._display.title()
+                view = self._ocioSettings._view.text()
+                colorSpace = config.getDisplayColorSpaceName(display, view)
+                self._dataModel.viewSettings.setOCIOConfig(colorSpace, display, view)
+                # This will handle the UI / menu updates
+                colorSpaceMap[colorSpace].trigger()
+
+            for d in config.getDisplays():
+                displayMenu = QtWidgets.QMenu(d)
+                for v in config.getViews(d):
+                    a = addAction(displayMenu, v)
+                    a.triggered[bool].connect(lambda _, action=a: setOCIO(action))
+                ocioMenu.addMenu(displayMenu)
+
+            for cs in config.getColorSpaces():
+                colorSpace = cs.getName()
+                a = addAction(colorSpaceMenu, colorSpace)
+                colorSpaceMap[colorSpace] = a
+                a.triggered[bool].connect(lambda _, action=a: setColorSpace(action))
+
+            # for lk in config.getLooks():
+            #     addAction(looksMenu, lk)
+
+            ocioMenu.addMenu(colorSpaceMenu)
+            #ocioMenu.addMenu(looksMenu)
+            self._ui.menuColorCorrection.addMenu(ocioMenu)
+            self._ocioSettings, self._ocioMenu = OCIOSettings(None), ocioMenu
+
+        except ImportError:
+            return
+
     # Topology-dependent UI changes
     def _reloadVaryingUI(self):
 
@@ -2369,7 +2427,7 @@ def _changeRenderMode(self, mode):
         self._dataModel.viewSettings.renderMode = str(mode.text())
 
     def _changeColorCorrection(self, mode):
-        self._dataModel.viewSettings.colorCorrectionMode = str(mode.text())
+        self._dataModel.viewSettings.colorCorrectionMode = mode
 
     def _changePickMode(self, mode):
         self._dataModel.viewSettings.pickMode = str(mode.text())

pxr/usdImaging/usdviewq/stageView.py

@@ -1452,9 +1452,16 @@ def renderSinglePass(self, renderMode, renderSelHighlights):
         self._renderParams.highlight = renderSelHighlights
         self._renderParams.enableSceneMaterials = self._dataModel.viewSettings.enableSceneMaterials
         self._renderParams.enableSceneLights = self._dataModel.viewSettings.enableSceneLights
-        self._renderParams.colorCorrectionMode = self._dataModel.viewSettings.colorCorrectionMode
         self._renderParams.clearColor = Gf.Vec4f(self._dataModel.viewSettings.clearColor)
 
+        ccMode = self._dataModel.viewSettings.colorCorrectionMode
+        self._renderParams.colorCorrectionMode = ccMode
+        self._renderParams.ocioDisplay, self._renderParams.ocioView, self._renderParams.ocioColorSpace = \
+            (self._dataModel.viewSettings.ocioConfig.display,
+               self._dataModel.viewSettings.ocioConfig.view,
+               self._dataModel.viewSettings.ocioConfig.colorSpace) if ccMode == ColorCorrectionModes.OPENCOLORIO else \
+            ('','','')
+
         pseudoRoot = self._dataModel.stage.GetPseudoRoot()
 
         renderer.SetSelectionColor(self._dataModel.viewSettings.highlightColor)

pxr/usdImaging/usdviewq/viewSettingsDataModel.py

@@ -73,6 +73,25 @@ def wrapper(self, *args, **kwargs):
         self.signalSettingChanged.emit()
     return wrapper
 
+"""Class to hold OCIO display, view, and colorSpace settings.
+The underlying data is somewhat opaque (for view it is strings, but
+for an app-controler it may be the Qt object)
+"""
+class OCIOSettings():
+    def __init__(self, dflt=None):
+        self._display, self._view, self._colorSpace = dflt, dflt, dflt
+
+    @property
+    def display(self):
+        return self._display
+
+    @property
+    def view(self):
+        return self._view
+
+    @property
+    def colorSpace(self):
+        return self._colorSpace
 
 class ViewSettingsDataModel(QtCore.QObject, StateSource):
     """Data model containing settings related to the rendered view of a USD
@@ -110,6 +129,7 @@ def __init__(self, rootDataModel, parent):
         self._renderMode = self.stateProperty("renderMode", default=RenderModes.SMOOTH_SHADED)
         self._freeCameraFOV = self.stateProperty("freeCameraFOV", default=60.0)
         self._colorCorrectionMode = self.stateProperty("colorCorrectionMode", default=ColorCorrectionModes.SRGB)
+        self._ocioSettings = OCIOSettings('')
         self._pickMode = self.stateProperty("pickMode", default=PickModes.PRIMS)
 
         # We need to store the trinary selHighlightMode state here,
@@ -311,6 +331,23 @@ def colorCorrectionMode(self):
     def colorCorrectionMode(self, value):
         self._colorCorrectionMode = value
 
+    @property
+    def ocioConfig(self):
+        return self._colorCorrectionMode
+
+    @property
+    def ocioConfig(self):
+        return self._ocioSettings
+
+    def setOCIOConfig(self, colorSpace=None, display=None, view=None):
+        if display:
+            assert view, 'Cannot set a display without a view'
+            self._ocioSettings._display = display
+            self._ocioSettings._view = view
+        if colorSpace:
+            self._ocioSettings._colorSpace = colorSpace
+        self.colorCorrectionMode = ColorCorrectionModes.OPENCOLORIO
+
     @property
     def pickMode(self):
         return self._pickMode