GR_CommonDispOption.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        GR_CommonDispOption.h
 *
 * COMMENTS:    The display options that are common regardless of the geometry
 *              type (display, template, etc.).
 */

#ifndef __GR_CommonDispOption_h__
#define __GR_CommonDispOption_h__

#include "GR_API.h"
#include <SYS/SYS_Math.h>
#include <UT/UT_Array.h>
#include <UT/UT_Color.h>
#include <UT/UT_String.h>
#include <RE/RE_TextureTypes.h>
#include <GEO/GEO_PrimTypeCompat.h>
#include <GU/GU_SelectType.h>
#include "GR_HandleParts.h"
#include "GR_DisplayColors.h"
#include "GR_Defines.h"

class RE_Render;
class RE_LightList;
class GR_SchemeColors;
class GR_LightList;

#define FLAG_ACCESSORS(FLAGS, METHOD, FLAG) \
    bool METHOD() const { return FLAGS.FLAG; } \
    void METHOD(bool onoff) { FLAGS.FLAG = onoff; }

#define FLAG_ACCESSORS_BUMP_OPTS(FLAGS, METHOD, FLAG) \
    bool METHOD() const { return FLAGS.FLAG; } \
    void METHOD(bool onoff) { if(FLAGS.FLAG != onoff) mySerialNum++; \
                              FLAGS.FLAG = onoff; }
 
class GR_API GR_CommonDispOption
{
public:
     GR_CommonDispOption(bool for_lops);
     GR_CommonDispOption(const GR_CommonDispOption &opt);
    ~GR_CommonDispOption();

    // Return true if the load/save was successful, and false otherwise.
    bool                 save(std::ostream &, int indent=0) const;
    bool                 load(UT_IStream &);

    GR_CommonDispOption &operator=(const GR_CommonDispOption &opt);

    // The color scheme names are simply the suffixes applied to the
    // default color scheme file 3DSceneColors.  The dot '.' should
    // not be included in the scheme name. 
    void                 setColorScheme(const char *scheme_name);
    const UT_String     &getColorScheme() const { return myColorScheme; }
    static void          reloadAllColorSchemes();

    // Grab the colors and the color scheme from opt:
    void                 setColors(const GR_CommonDispOption &opt);

    bool         compatibleWith(const GR_CommonDispOption &opt) const;

    // Grab the color from the current pass
    const UT_Color      &color(GR_DisplayColor c) const
        { return myColors[c][myGammaPassPtr?*myGammaPassPtr:0]; }

    void         setGammaPassPtr(int *p) { myGammaPassPtr = p; }
    
    void                 setColor(GR_DisplayColor color_name,
                                const UT_Color &c);
    void                 setColor(GR_DisplayColor target_color,
                                GR_DisplayColor source_color);
    const UT_Color      &getColor(GR_DisplayColor color_name,
                                bool gamma = false) const
                         { return myColors[color_name][gamma?1:0]; }
    bool                 getColorByName(const char *name, UT_Color &color);
    
    // Color methods (soon to be deprecated; use color(GR_..._COLOR)
#define GET_COL(func, val) \
    const UT_Color &func() const \
    { return myColors[val][myGammaPassPtr?*myGammaPassPtr:0]; }
    
    GET_COL(backgndColor, GR_BACKGROUND_COLOR)
    GET_COL(backgndBottomColor, GR_BACKGROUND_BOTTOM_COLOR)
    GET_COL(defaultWireColor, GR_WIREFRAME_COLOR)
    GET_COL(wireOverColor, GR_WIRE_OVER_COLOR)
    GET_COL(ghostFillColor, GR_GHOST_FILL_COLOR)
    GET_COL(selPrimColor, GR_SELECTED_PRIM_COLOR)
    GET_COL(auxSelPrimColor1, GR_AUX_SELECTED_PRIM1_COLOR)
    GET_COL(auxSelPrimColor2, GR_AUX_SELECTED_PRIM2_COLOR)
    GET_COL(cookSelectionColor, GR_COOK_SELECTION_COLOR)
    GET_COL(primClosureColor, GR_PRIM_CLOSURE_COLOR)
    GET_COL(regAuxColor, GR_AUX_GEO_COLOR)
    GET_COL(selAuxColor, GR_SELECTED_AUX_GEO_COLOR)
    GET_COL(profileColor, GR_PROFILE_WIRE_COLOR)
    GET_COL(axesColor, GR_AXES_COLOR)
    GET_COL(xAxisColor, GR_X_AXIS_COLOR)
    GET_COL(yAxisColor, GR_Y_AXIS_COLOR)
    GET_COL(zAxisColor, GR_Z_AXIS_COLOR)
    GET_COL(selAxesColor, GR_SELECTED_AXES_COLOR)
    GET_COL(primInfoColor, GR_PRIM_INFO_COLOR)
    GET_COL(selPrimInfoColor, GR_SELECTED_PRIM_INFO_COLOR)
    GET_COL(pointColor, GR_POINT_COLOR)
    GET_COL(selPointColor, GR_SELECTED_POINT_COLOR)
    GET_COL(guide1Color, GR_GUIDE1_COLOR)
    GET_COL(guide2Color, GR_GUIDE2_COLOR)
    GET_COL(guideSelColor, GR_OBJECT_SELECT_COLOR)
    GET_COL(cplaneColor, GR_CPLANE_COLOR)
    GET_COL(activeCplaneColor, GR_ACTIVE_CPLANE_COLOR)
    GET_COL(selCplaneColor,  GR_SELECTED_CPLANE_COLOR)
    GET_COL(gridColor, GR_GRID_COLOR)
    GET_COL(heightVectorColor, GR_HEIGHT_VECTOR_COLOR)
    GET_COL(gridXRulerColor, GR_GRID_X_RULER_COLOR)
    GET_COL(gridYRulerColor, GR_GRID_Y_RULER_COLOR)
    GET_COL(gridZRulerColor, GR_GRID_Z_RULER_COLOR)
    GET_COL(handleColor, GR_HANDLE_COLOR)
    GET_COL(pickedHandleColor, GR_PICKED_HANDLE_COLOR)
    GET_COL(selHandleColor, GR_SELECTED_HANDLE_COLOR)
    GET_COL(peanutColor, GR_PEANUT_COLOR)
    GET_COL(labelColor, GR_LABEL_COLOR)
    GET_COL(pillTextColor, GR_PILL_TEXT_COLOR)
    GET_COL(pillBGColor, GR_PILL_BG_COLOR)
    GET_COL(pillOutlineColor, GR_PILL_OUTLINE_COLOR)
    GET_COL(pillCamLockTextColor, GR_PILL_CAM_LOCK_TEXT_COLOR)
    GET_COL(pillCamLockBGColor, GR_PILL_CAM_LOCK_BG_COLOR)
    GET_COL(pillCamLockOutlineColor, GR_PILL_CAM_LOCK_OUTLINE_COLOR)
    GET_COL(snapshotColor, GR_SNAPSHOT_COLOR)
    GET_COL(selLabelColor, GR_SELECTED_LABEL_COLOR)
    GET_COL(selPillTextColor, GR_SELECTED_PILL_TEXT_COLOR)
    GET_COL(selPillBGColor, GR_SELECTED_PILL_BG_COLOR)
    GET_COL(selPillOutlineColor, GR_SELECTED_PILL_OUTLINE_COLOR)
    GET_COL(overlayLabelColor, GR_OVERLAY_LABEL_COLOR)
    GET_COL(auxOverlayLabelColor, GR_AUX_OVERLAY_LABEL_COLOR)
    GET_COL(handlePivotColor, GR_HANDLE_PIVOT_COLOR)
    GET_COL(handleAxisColor, GR_HANDLE_AXIS_COLOR)
    GET_COL(handleXAxisColor, GR_HANDLE_X_AXIS_COLOR)
    GET_COL(handleYAxisColor, GR_HANDLE_Y_AXIS_COLOR)
    GET_COL(handleZAxisColor, GR_HANDLE_Z_AXIS_COLOR)
    GET_COL(handlePlaneAxisColor, GR_HANDLE_PLANE_AXIS_COLOR)
    GET_COL(handleTumbleSphereColor, GR_HANDLE_TUMBLE_SPHERE_COLOR)
    GET_COL(handleTracerColor, GR_HANDLE_TRACER_COLOR)
    GET_COL(handleDeltaTextColor, GR_HANDLE_DELTA_TEXT_COLOR)
    GET_COL(handleDeltaTextShadowColor, GR_HANDLE_DELTA_TEXT_SHADOW_COLOR)
    GET_COL(handleBendColor, GR_HANDLE_BEND_COLOR)
    GET_COL(handleTwistColor, GR_HANDLE_TWIST_COLOR)
    GET_COL(cplaneHandleXlateColor, GR_CPLANE_HANDLE_XLATE_COLOR)
    GET_COL(cplaneHandleRotateColor, GR_CPLANE_HANDLE_ROTATE_COLOR)
    GET_COL(cplaneHandleBorderColor, GR_CPLANE_HANDLE_BORDER_COLOR)
    GET_COL(orthoGridColor, GR_ORTHO_GRID_COLOR)
    GET_COL(orthoGridOriginColor, GR_ORTHO_GRID_ORIGIN_COLOR)
    GET_COL(uvGridColor, GR_UV_GRID_COLOR)
    GET_COL(uvGridOriginColor, GR_UV_GRID_ORIGIN_COLOR)
    GET_COL(uvGridBoundaryColor, GR_UV_GRID_BOUNDARY_COLOR)
    GET_COL(objSelectColor, GR_OBJECT_SELECT_COLOR)
    GET_COL(objCurrentColor, GR_OBJECT_CURRENT_COLOR)
    GET_COL(objSelectHintColor, GR_OBJECT_SELECT_HINT_COLOR)
    GET_COL(objGhostColor, GR_OBJECT_GHOST_COLOR)
    GET_COL(uvBackFaceFillColor, GR_UV_BACKFACE_FILL_COLOR)
    GET_COL(uvOverlapFillColor, GR_UV_OVERLAP_FILL_COLOR)
    GET_COL(uvSelBackFaceFillColor, GR_SELECTED_UV_BACKFACE_FILL_COLOR)
    GET_COL(ikCriticalZoneColor, GR_IK_CRITICAL_ZONE_COLOR)
    GET_COL(viewMaskOverlayColor, GR_VIEW_MASK_OVERLAY_COLOR)
    GET_COL(cameraMaskColor, GR_CAMERA_MASK_COLOR)
    GET_COL(lockedCameraMaskColor, GR_LOCKED_CAMERA_MASK_COLOR)
    GET_COL(cameraOverlayColor, GR_CAMERA_OVERLAY_COLOR)
    GET_COL(textColor, GR_TEXT_COLOR)
    GET_COL(textShadowColor, GR_TEXT_SHADOW_COLOR)
    GET_COL(geoWarningColor, GR_GEO_WARNING_COLOR)
    GET_COL(selectBoxOuterLineColor, GR_SELECTBOX_OUTER_LINE_COLOR)
    GET_COL(selectBoxInnerLineColor, GR_SELECTBOX_INNER_LINE_COLOR)
    GET_COL(selectBoxFillColor, GR_SELECTBOX_FILL_COLOR)
    GET_COL(handleLocateColor, GR_HANDLE_LOCATE_COLOR)
    GET_COL(handleLocatePassiveColor, GR_HANDLE_LOCATE_PASSIVE_COLOR)
    GET_COL(objectNameColor, GR_OBJECT_NAME_COLOR)
    GET_COL(pointTrailColor, GR_POINT_TRAIL_COLOR)
    GET_COL(selPointTrailColor, GR_POINT_TRAIL_SELECTED_COLOR)
    GET_COL(renderBorderColor, GR_RENDER_BORDER_COLOR)
    GET_COL(renderInactiveBorderColor, GR_RENDER_INACTIVE_BORDER_COLOR)
    GET_COL(renderTextColor, GR_RENDER_TEXT_COLOR)
    GET_COL(renderLocateColor, GR_RENDER_LOCATE_COLOR)
    GET_COL(renderBarColor, GR_RENDER_BAR_COLOR)
    GET_COL(flattenPinColor, GR_FLATTEN_PIN_COLOR)
    GET_COL(flattenPinSelColor, GR_FLATTEN_PIN_SELECTED_COLOR)
    GET_COL(flattenInitialPinColor, GR_FLATTEN_INITIAL_PIN_COLOR)
    GET_COL(messageColor, GR_MESSAGE_COLOR)
    GET_COL(promptColor, GR_PROMPT_COLOR)
    GET_COL(warningColor, GR_WARNING_COLOR)
    GET_COL(errorColor, GR_ERROR_COLOR)
    GET_COL(successColor, GR_SUCCESS_COLOR)
    GET_COL(overlayBackgroundColor, GR_OVERLAY_BACKGROUND_COLOR)
    GET_COL(boundaryColor, GR_BOUNDARY_COLOR)
    GET_COL(edgeTipColor, GR_EDGE_TIP_COLOR)
    GET_COL(viewPivotFGColor, GR_VIEW_PIVOT_FG_COLOR)
    GET_COL(viewPivotBGColor, GR_VIEW_PIVOT_BG_COLOR)
    GET_COL(bboxOutlineColor, GR_BBOX_OUTLINE_COLOR)
    GET_COL(bboxSolidColor, GR_BBOX_SOLID_COLOR)
    GET_COL(backfaceTint, GR_BACKFACE_TINT_COLOR)
    GET_COL(overviewViewRegionColor, GR_OVERVIEW_VIEW_REGION_COLOR)
    GET_COL(overviewWinRegionColor, GR_OVERVIEW_WIN_REGION_COLOR)
    GET_COL(overviewNominalWinRegionColor, GR_OVERVIEW_NOMINAL_WIN_REGION_COLOR)
    GET_COL(usdModifiedPrimitiveColor, GR_USD_MODIFIED_PRIMITIVE_COLOR)

    const UT_Color &wireColor() const
        { return myCurrentWireColor[myGammaPassPtr?*myGammaPassPtr:0]; }
    const UT_Color &crtAuxColor() const
        { return myColors[myCrtAuxColor][myGammaPassPtr?*myGammaPassPtr:0]; }
    
    const UT_Color &locateColor(fpreal &alpha) const
        {
            alpha = myAlphas[GR_LOCATE_ALPHA];
            return myColors[GR_LOCATE_COLOR][myGammaPassPtr?*myGammaPassPtr:0];
        }
    void componentLocateColor(int component_type,
                              GU_SelectionRule sel_rule,
                              UT_Color &clr, fpreal &alpha) const;
    void componentLocateNearColor(UT_Color &clr, fpreal &alpha) const;

#undef GET_COL

    fpreal       getAlpha(GR_DisplayColorAlpha alpha_name) const
                                 { return myAlphas[alpha_name]; }
    bool         getAlphaByName(const char *name, fpreal &alpha);
#define GET_ALPHA(func, val) fpreal func() const { return myAlphas[val]; }
    GET_ALPHA(objGhostAlpha, GR_OBJECT_GHOST_ALPHA)
    GET_ALPHA(selectBoxFillAlpha, GR_SELECTBOX_ALPHA)
    GET_ALPHA(cplaneAlpha, GR_CPLANE_ALPHA)
    GET_ALPHA(cplaneLineAlpha, GR_CPLANE_LINE_ALPHA)
    GET_ALPHA(cplaneLineFadedAlpha, GR_CPLANE_LINE_FADED_ALPHA)
    GET_ALPHA(gridLineAlpha, GR_GRID_LINE_ALPHA)
    GET_ALPHA(gridLineFadedAlpha, GR_GRID_LINE_FADED_ALPHA)
    GET_ALPHA(gridRulerAlpha, GR_GRID_RULER_ALPHA)
    GET_ALPHA(gridRulerFadedAlpha, GR_GRID_RULER_FADED_ALPHA)
    GET_ALPHA(handleLocateAlpha, GR_HANDLE_LOCATE_ALPHA)
    GET_ALPHA(handleAxisLocateAlpha, GR_HANDLE_AXIS_LOCATE_ALPHA)
    GET_ALPHA(handleTumbleSphereAlpha, GR_HANDLE_TUMBLE_SPHERE_ALPHA)
    GET_ALPHA(handleTracerFillAlpha, GR_HANDLE_TRACER_FILL_ALPHA);
    GET_ALPHA(fillSelectionAlpha, GR_FILL_SELECTION_ALPHA)
    GET_ALPHA(fillSelectionWireOverAlpha, GR_FILL_SELECTION_WIRE_OVER_ALPHA)
    GET_ALPHA(uvFillAlpha, GR_UV_FILL_ALPHA)
    GET_ALPHA(uvOverlapFillAlpha, GR_UV_OVERLAP_FILL_ALPHA)
    GET_ALPHA(overlayBackgroundAlpha, GR_OVERLAY_BACKGROUND_ALPHA)
    GET_ALPHA(pillMenuBGAlpha, GR_PILL_MENU_BG_ALPHA)
    GET_ALPHA(selPillMenuBGAlpha, GR_SELECTED_PILL_MENU_BG_ALPHA)
    GET_ALPHA(bboxOutlineAlpha, GR_BBOX_OUTLINE_ALPHA)
    GET_ALPHA(bboxSolidAlpha, GR_BBOX_SOLID_ALPHA)
    GET_ALPHA(backfaceTintBlend, GR_BACKFACE_TINT_ALPHA)
    GET_ALPHA(usdSelectedPrimitiveBlend, GR_USD_SELECTED_PRIMITIVE_ALPHA)
    GET_ALPHA(usdModifiedPrimitiveBlend, GR_USD_MODIFIED_PRIMITIVE_ALPHA)
#undef GET_ALPHA
    
    const GR_HandleParts        &handleParts() const { return myHandleParts; }
          GR_HandleParts        &handleParts()       { return myHandleParts; }

    GR_DecorFontSize    getDecorFontSize() const { return myDecorFontSize; }
    void                setDecorFontSize(GR_DecorFontSize s){myDecorFontSize=s;}

    fpreal              markerSize() const { return myMarkerSize*myDPIScale; }
    fpreal              getMarkerSize() const
                            { return myMarkerSize; }
    void                setMarkerSize(fpreal size)
                            { myMarkerSize = SYSmax(size, 0.1); }

    // Methods for accessing (setting/getting) the various flags.
    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, drawTexture, drawTexture)
    FLAG_ACCESSORS_BUMP_OPTS(myNoSaveFlags, drawMultiTexture, drawMultiTexture)
    FLAG_ACCESSORS(mySaveFlags, drawTransparent, drawTransparent)
    FLAG_ACCESSORS(mySaveFlags, showMaterials, showMaterials)
    FLAG_ACCESSORS(mySaveFlags, drawDisplacement, drawDisplacement)
    FLAG_ACCESSORS(mySaveFlags, drawTexturedSpots, drawTexturedSpots)
    FLAG_ACCESSORS(mySaveFlags, drawShadows, drawShadows)
    FLAG_ACCESSORS(mySaveFlags, drawTransparentMaps, drawTransparentMaps)
    FLAG_ACCESSORS(mySaveFlags, highQualityLighting, highQualityLighting)
    FLAG_ACCESSORS(mySaveFlags, drawDiffuse, drawDiffuse)
    FLAG_ACCESSORS(mySaveFlags, drawAmbient, drawAmbient)
    FLAG_ACCESSORS(mySaveFlags, drawEmission, drawEmission)
    FLAG_ACCESSORS(mySaveFlags, useLighting, useLighting)
    FLAG_ACCESSORS(mySaveFlags, ambientOcclusion, ambientOcclusion)
    FLAG_ACCESSORS(mySaveFlags, removeBackface, removeBackface)
    FLAG_ACCESSORS(mySaveFlags, fillSelection, fillSelection)
    FLAG_ACCESSORS(mySaveFlags, solidOnly, solidOnly)
    FLAG_ACCESSORS(mySaveFlags, correctBG, correctBG)
    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, polygonConvexQuality,
                             polygonConvexQuality)
    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, drawPartSprite, drawPartSprite)
    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, orientDiscs, orientDiscs)

    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, shadeOpenCurves, shadeOpenCurves)
    FLAG_ACCESSORS(mySaveFlags, displayAsSubdiv, displayAsSubdiv)

    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, drawHullsOnly, drawHullsOnly)
    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, drawPartOrigin, drawPartOrigin)
    FLAG_ACCESSORS(mySaveFlags, drawHandles, drawHandles)
    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, showObjectSelection,
                             showObjectSelection)

    FLAG_ACCESSORS(mySaveFlags, use2DLimitsFor3D, use2DTexLimits)
    FLAG_ACCESSORS(mySaveFlags, dynamicTexControl, dynamicTexControl)
    FLAG_ACCESSORS(mySaveFlags, dynamicReduceTex2D, reduceTex2D )
    FLAG_ACCESSORS(mySaveFlags, dynamicReduceTex3D, reduceTex3D )
    FLAG_ACCESSORS(mySaveFlags, dynamicReduceMipMap, reduceMipMap )
    FLAG_ACCESSORS(mySaveFlags, dynamicReduceBitDepth, reduceBitDepth )

    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, overrideColorAttrib,
                             overrideColorAttrib);
    FLAG_ACCESSORS(mySaveFlags, pickWireAsSolid, pickWireAsSolid)
    FLAG_ACCESSORS(mySaveFlags, wireOverPacked, wireOverPacked)
    FLAG_ACCESSORS(mySaveFlags, showGeoColor, showGeoColor )

    FLAG_ACCESSORS(myNoSaveFlags, applyVisualizers, applyVisualizers)
    FLAG_ACCESSORS(myNoSaveFlags, snapToSelected, snapToSelected)
    FLAG_ACCESSORS(myNoSaveFlags, showComponentSelections, showComponentSelections)

    // NB: This flag is somewhat overloaded.  At SOPs it determines whether
    //     we're showing the temporary or cook selections.  At DOPs it also
    //     indicates whether we're drawing temporary DETAIL selections.
    FLAG_ACCESSORS(myNoSaveFlags, showTempSelections, showTempSelections)

    FLAG_ACCESSORS(myNoSaveFlags, pickFrontFaces, pickFrontFaces)
    FLAG_ACCESSORS(myNoSaveFlags, pickBackFaces, pickBackFaces)
    FLAG_ACCESSORS_BUMP_OPTS(myNoSaveFlags, drawAuxColors, drawAuxColors)
    FLAG_ACCESSORS_BUMP_OPTS(myNoSaveFlags, forceWireColor, forceWireColor)
    FLAG_ACCESSORS(myNoSaveFlags, shadingOpenCurves, shadingOpenCurves)

    // This returns true if the interactive mode display option is on
    FLAG_ACCESSORS(mySaveFlags, interactiveEnable, interactiveEnable)


    FLAG_ACCESSORS(mySaveFlags, outlineSelection, outlineSelection)

    // This returns true if the user is interactively moving a handle or
    // tumbling, independent of the interative enable flag.
    FLAG_ACCESSORS(myNoSaveFlags, interactiveMove, interactive)

    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, pointInstancing, pointInstancing)

    bool   cuspNormals() const
                 { return mySaveFlags.cuspNormals; }
    void   cuspNormals(bool c)
                 {
                     if(c != mySaveFlags.cuspNormals)
                     {
                         mySerialNum++;
                         mySaveFlags.cuspNormals = c;
                     }
                 }
    fpreal getNormalCuspAngle() const
                 { return myNormalCuspAngle; }
    void   setNormalCuspAngle(fpreal a)
                 {
                     a = SYSclamp(a, 0.0, 180.0);
                     if(!SYSisEqual(a, myNormalCuspAngle))
                     {
                         mySerialNum++;
                         myNormalCuspAngle = a;
                     }
                 }
    int    getVertexNormalLimit() const
                 { return myVertNormalLimit; }
    void   setVertexNormalLimit(int poly_limit)
                 {
                     poly_limit = SYSmax(0, poly_limit);
                     if(poly_limit != myVertNormalLimit)
                     {
                         mySerialNum++;
                         myVertNormalLimit = poly_limit;
                     }
                 }

    enum gr_TangentMethod
    {
        TANGENT_MIKKT,
        TANGENT_FAST,
        TANGENT_DISABLE
    };
    void generateTangents(gr_TangentMethod method)
                {
                    if(myTangentMethod != method)
                    {
                        mySerialNum++;
                        myTangentMethod = method;
                    }
                }
    gr_TangentMethod generateTangents() const { return myTangentMethod; }
    
    bool limitTextureSize() const { return mySaveFlags.limitTextureSize; }
    void limitTextureSize(bool ls){ mySaveFlags.limitTextureSize = ls;
                                    myUpdates.texSize = true; }
    
    bool limitTexture3DSize() const { return mySaveFlags.limitTexture3DSize; }
    void limitTexture3DSize(bool ls){ mySaveFlags.limitTexture3DSize = ls;
                                      myUpdates.tex3DSize = true; }

    int  textureMemLimitMB() const { return myTextureMemLimitMB; }
    void textureMemLimitMB(int max_size)
                            { myTextureMemLimitMB = SYSmax(32, max_size);
                                myUpdates.textureMem = true; }

    // Specifies the anisotropic sampling for textures. getTextureAnisotropy()
    // must be called when rendering, to check for the GL extension.
    int getTextureAnisotropy(RE_Render *r) const;
    int textureAnisotropy() const;
    void textureAnisotropy(int ta);
    
    // Always use the version of getHDRTextureFormat() with RE_Render * when
    // rendering, to ensure hardware compatibility with the format.
    RE_TextureCompress getHDRTextureFormat(RE_Render *r) const;
    int getHDRTextureFormat() const;
    void setHDRTextureFormat(int hdrformat); // 2 = full HDR, 1=16b HDR, 0=8b
    void setDynamicFormat(int format);       // -1 = compressed 8b
    int getDynamicFormat() const { return myDynamicFormat; }
                                             

    RE_TextureCompress getHDRTexture3DFormat(RE_Render *r) const;
    int getHDRTexture3DFormat() const;
    void setHDRTexture3DFormat(int hdrformat); // 2 = full HDR, 1=16b HDR, 0=8b
    void setDynamic3DFormat(int format);
    int getDynamic3DFormat() const { return myDynamic3DFormat; }
    
    // Scale all textures down
    void  setTextureScale(float sc);    // 0.0 (min size) to 1.0 (full size)
    float getTextureScale() const;      // texture scale is applied before limit
    float getUserTextureScale() const;  // texture scale w/o dynamics applied
    void  setDynamicScale(float sc);    // For dynamic cache control
    float getDynamicScale() const;

    void  setTexture3DScale(float sc);  // 0.0 (min size) to 1.0 (full size)
    float getTexture3DScale() const;    // texture scale is applied before limit
    float getUserTexture3DScale() const;// texture scale w/o dynamics applied
    void  setDynamic3DScale(float sc);  // For dynamic cache control
    float getDynamic3DScale() const;

    // Maximum particle array texture size
    void setParticleTextureSize(int max_w, int max_h);
    void getParticleTextureSize(int &max_w, int &max_h) const;

    void setParticleDisplayType(GR_ParticleType t);
    GR_ParticleType particleDisplayType() const;

    // Limit texture resolution
    void setMaxTextureSize(bool limit, int max_w=0, int max_h=0);
    void getMaxTextureSize(int &max_w, int &max_h) const;
    void getMaxTextureSize(RE_Render *r, int &max_w, int &max_h) const;

    void setMaxTexture3DSize(bool limit, int max_w=0, int max_h=0, int max_d=0);
    void getMaxTexture3DSize(int &max_w, int &max_h, int &max_d) const;
    void getMaxTexture3DSize(RE_Render *r, int &max_w, int &max_h,
                                           int &max_d) const;

    bool mipMapTextures() const;
    void mipMapTextures(bool onoff);
    void setDynamicMipMap(bool onoff);
    bool getDynamicMipMap() const { return myNoSaveFlags.dynamicMipSetting; }

    void resetDynamicParms();

    void allowDeferredTextureLoad(bool a) { myNoSaveFlags.deferTexLoad = a; }
    bool allowDeferredTextureLoad() const { return myNoSaveFlags.deferTexLoad; }
    
    bool getHighQualityLighting(RE_Render *r) const;

    void alphaPass(GR_AlphaPass pass) { myAlphaPass = pass; }
    GR_AlphaPass alphaPass() const { return myAlphaPass; }

    int  getTransparentQuality() const { return myTransparentQuality; }
    void setTransparentQuality(int q)  { myTransparentQuality=SYSclamp(q,-1,2); }

    fpreal getDisplacementQuality() const { return myDisplacementQuality; }
    void setDisplacementQuality(fpreal q)
                                { myDisplacementQuality=SYSclamp(q,0.0,10.0); }

    int  getLightSampling() const      { return myLightSamples; }
    void setLightSampling(int s)       { myLightSamples = SYSclamp(s,1,100); }

    int  getVolumeQuality() const      { return myVolumeQuality; }
    void setVolumeQuality(int q)       { myVolumeQuality = SYSclamp(q,0,3); }

    fpreal getVolumeAmbientShadows() const { return myVolumeAmbientShadows; }
    void setVolumeAmbientShadows(fpreal q)
                                { myVolumeAmbientShadows = SYSmax((fpreal) 0, q); }

    int  getVolumeBSplines() const     { return myVolumeBSplines; }
    void setVolumeBSplines(int bs)     { myVolumeBSplines = bs; }

    bool getActiveRender() const       { return myActiveRender; }
    void setActiveRender(bool active)  { myActiveRender = active; }

    bool volumeWireAsPoints() const { return false; }
    void volumeWireAsPoints(bool vw){ }

    // DPI support.
    void   DPIScale(fpreal f) { myDPIScale = f; }
    fpreal DPIScale() const   { return myDPIScale; }

    void autoDPIScale(bool dpi);
    bool autoDPIScale() const { return mySaveFlags.autoDPIScale; }

    // Reflection cube maps
    bool         useReflectionMaps() const
                                { return mySaveFlags.enableReflectionMaps; }
    void         useReflectionMaps(bool e)
                                { mySaveFlags.enableReflectionMaps = e; }
    bool         hdrReflectionMaps() const
                                { return mySaveFlags.hdrReflectionMaps; }
    void         hdrReflectionMaps(bool e)
                                { myUpdates.hdrReflect = true;
                                  mySaveFlags.hdrReflectionMaps = e; }
    int          reflectionMapSize() const { return myReflectMapSize; }
    void         reflectionMapSize(int wh)
                                { myUpdates.reflectSize = true;
                                  myReflectMapSize = SYSclamp(wh, 16, 16384); }
    fpreal       reflectionMinLevel() const { return myReflectMinLevel; }
    void         reflectionMinLevel(fpreal lvl)
                                { myReflectMinLevel = SYSclamp(lvl, 0.0, 1.0); }
   
    // Agents
    FLAG_ACCESSORS_BUMP_OPTS(mySaveFlags, agentLODEnable, agentLODEnable)

    void   setAgentLODBias(fpreal b)
            {
                if(!SYSisEqual(b, myAgentLODBias))
                    mySerialNum++;
                myAgentLODBias = b;
            }
    fpreal getAgentLODBias() const { return myAgentLODBias; }

    void   setAgentMinPoints(int minp) { myAgentMinPoints = SYSmax(1, minp); }
    int    getAgentMinPoints() const { return myAgentMinPoints; }

    void   setAgentNumLODLevels(int lvls) { myAgentMaxLOD=SYSclamp(lvls,1,16);}
    int    getAgentNumLODLevels() const { return myAgentMaxLOD; }

    void   setAgentBaseLODLevel(int lvl)
            {
                if(lvl != myAgentBaseLOD)
                    mySerialNum++;
                myAgentBaseLOD=SYSclamp(lvl,0,16);
            }
    int    getAgentBaseLODLevel() const { return myAgentBaseLOD; }

    void   setAgentBoneDeform(int d) { myAgentBoneDeform = SYSclamp(d,0,2); }
    int    getAgentBoneDeform() const { return myAgentBoneDeform; }

    int    getAgentWireMode() const    { return myAgentWireMode; }
    void   setAgentWireMode(int mode)
                {
                    mode = SYSclamp(mode,0,1);
                    if(mode != myAgentWireMode)
                    {
                        mySerialNum++;
                        myAgentWireMode =  mode;
                    }
                }

    FLAG_ACCESSORS(mySaveFlags, agentBlendShapes, agentBlendShapes)

    FLAG_ACCESSORS(mySaveFlags, characterDeform, characterDeform)

    void   optimizePackedGeometry(bool opt){ mySaveFlags.optPackedGeo = opt; }
    bool   optimizePackedGeometry() const { return mySaveFlags.optPackedGeo; }

    void   offsetVertexDecor(bool use_offset)
                                { mySaveFlags.offsetVertexDecor = use_offset; }
    bool   offsetVertexDecor() const
                                { return mySaveFlags.offsetVertexDecor; }

    enum gr_BBoxMode
    {
        NO_BBOX,
        WIRE_BBOX,
        SHADED_BBOX,
        CURRENT_SHADING_BBOX // follow the current shading mode
    };
    void   shadedBoundingBoxes(gr_BBoxMode m) { myBBoxMode = m; }
    gr_BBoxMode shadedBoundingBoxes() const     { return myBBoxMode; }

    // "Get" methods:
    const UT_String &
                 visibleObjects()    const { return myVisibleObjects; }
    GA_PrimCompat::TypeMask  primMask() const { return myPrimMask; }
    unsigned     pickMask()          const { return myPickMask; }
    float        normalScale()       const { return myNormalScale; }
    float        getNormalScale()    const { return myNormalScale; }
    fpreal       vectorScale()       const { return myVectorScale; }
    fpreal       getVectorScale()    const { return myVectorScale; }
    float        LOD()               const { return myLOD; }
    float        hlOffsetVariable()  const { return myHLOffsetVariable; }
    float        hlOffsetConstant()  const { return myHLOffsetConstant; }
    float        wireWidth()         const { return SYSmax(0.1,
                                                myWireWidth*myDPIScale); }
    float        selectionWireWidth()const { return (wireWidth() > 1.0)
                                                ? wireWidth() + 1.0
                                                : wireWidth() * 2.0; }
    float        getWireWidth()      const { return myWireWidth; }
    float        wireBlend()         const { return SYSclamp(myWireBlend,
                                                0.0, 1.0); }
    float        interiorWireAlpha() const { return myInteriorWireAlpha; }
    float        pointSize()         const { return myPointSize*myDPIScale; }
    float        getPointSize()      const { return myPointSize; }
    float        discSize()          const { return myDiscSize; }
    float        shadowOffsetVariable() const { return myShadowOffsetVariable; }
    float        shadowOffsetConstant() const { return myShadowOffsetConstant; }
    int          shadowAA() const          { return myShadowAA; }
    bool         useLightShadowSize() const { return myUseLightShadowSize; }
    int          getShadowMapSize() const   { return myShadowMapSize; } 
    int          selectionListInst() const { return mySelectionListInst; }

    const char  *colorAttrib() const { return myColorAttrib; }
    int          colorType() const { return myColorType; }
    void         getColorDomain(fpreal &s, fpreal &e) const
                        {  s = myColorDomain[0];
                           e = myColorDomain[1]; }

    int          getSceneAntialias() const { return mySceneAntialias; }
    bool         getHDRRendering() const   { return mySaveFlags.hdrRender; }
    float        getViewGamma() const      { return myViewGamma; }
    bool         useViewLUT() const        { return myUseLUT; }
    const char  *getViewLUT() const        { return myViewLUT; }
    bool         useOCIO() const           { return myUseOCIO; }
    const char  *getOCIOColorspace() const { return myOCIOColorspace; }
    const char  *getOCIOLooks() const      { return myOCIOLooks; }
    const char  *getOCIODisplay() const    { return myOCIODisplay; }
    const char  *getOCIOView() const       { return myOCIOView; }
    exint        getOCIOSerial() const     { return myOCIOSerial; }
    float        getViewBlack() const      { return myViewBlack; }
    float        getViewWhite() const      { return myViewWhite; }
    int          getViewComponents() const { return myViewComponents; }
    
    int          getAmbOcclusionLevel() const { return myAmbOcclusionLevel; }

    fpreal       getInstancingFraction() const { return myInstancingFraction; }
    int          getInstancingLimit() const    { return myInstancingLimit; }
    int          getInstancingLimitAction() const
                                            { return myInstancingLimitAction; }
    
    fpreal       getMinHomeZoom() const        { return myMinHomeZoom; }

    // In millions of polygons (eg, 10 for 10M).
    int          getSubdivisionPolyLimit() const { return mySubdPolyLimit; }

    // "Set" methods:
    void         visibleObjects(const char *mask)
                                             { myVisibleObjects.harden(mask); }
    void         primMask(GA_PrimCompat::TypeMask mask)
                                             { myPrimMask = mask; }
    void         pickMask(unsigned mask)     { myPickMask = mask; }
    void         setNormalScale(float s);
    void         setVectorScale(float s);

    void         useRegularAuxColor() { myCrtAuxColor=GR_AUX_GEO_COLOR; }
    void         useSelectedAuxColor(){ myCrtAuxColor=GR_SELECTED_AUX_GEO_COLOR;}
    
    void         setCurrentWireColor(const UT_Color &color);
    void         setCurrentWireColor(GR_DisplayColor color);
    const UT_Color &getCurrentWireColor() const { return myCurrentWireColor[0]; }
    
    void         LOD(float l);
    void         hlOffsetVariable(float f)   { myHLOffsetVariable = (f>=0.0f)
                                                             ? f :0.0f;}
    void         hlOffsetConstant(float f)   { myHLOffsetConstant = (f>=0.0f)
                                                             ? f :0.0f;}
    void         setWireWidth(float width)   { myWireWidth   = width;}
    void         wireBlend(float blend)      { myWireBlend   = blend;}
    void         interiorWireAlpha(float a)  { myInteriorWireAlpha
                                                   = SYSclamp(a, 0.0f, 1.0f); }
    void         setPointSize(float size)    { myPointSize   = size; }
    void         discSize(float size);
    void         shadowOffsetVariable(float f)
                        { myShadowOffsetVariable = (f>=0.0f) ? f : 0.0f;}
    void         shadowOffsetConstant(float f)
                        { myShadowOffsetConstant = (f>=0.0f) ? f : 0.0f;}
    void         shadowAA(int aa)            { myShadowAA = SYSclamp(aa, 1,4); }
    void         selectionListInst(int inst) { mySelectionListInst = inst; }
    void         setUseLightShadowSize(bool e) { myUseLightShadowSize = e; }
    void         setShadowMapSize(int s)     { myShadowMapSize = s;
                                                myUpdates.shadowSize = true; }

    void         setColorAttrib(const char *a);
    void         setColorType(int t);
    void         setColorDomain(fpreal s, fpreal e);

    void         setSceneAntialias(int a)  { mySceneAntialias = SYSmax(a,2);
                                             myUpdates.sceneAA = true; }

    void         setHDRRendering(bool hdr) { mySaveFlags.hdrRender = hdr; }

    void         setViewGamma(float gamma);
    void         setUseViewLUT(bool b)     { myUseLUT = b; }
    void         setViewLUT(const char *lut) { myViewLUT.harden(lut); }
    void         useOCIO(bool use)         { myUseOCIO = use; }
    void         setOCIOColorspace(const char *cs)
                                       { myOCIOColorspace.harden(cs); }
    void         setOCIOLooks(const char *looks)
                                       { myOCIOLooks.harden(looks); }
    void         setOCIODisplayView(const char *display, const char *view)
                 { myOCIODisplay = display; myOCIOView = view; }
    void         setOCIOSerial(exint serial) { myOCIOSerial = serial; }
    void         setViewBlack(float b) { myViewBlack = b; }
    void         setViewWhite(float w) { myViewWhite = w; }
    void         setViewComponents(int c) { myViewComponents = c; }
    void         setAmbOcclusionLevel(int lvl)
                 { myAmbOcclusionLevel = SYSclamp(lvl, 1, 4); }
    
    void         setInstancingFraction(fpreal s)
                 { if(!SYSisEqual(s, myInstancingFraction))
                        mySerialNum++;
                     myInstancingFraction = s; }
    void         setInstancingLimit(int limit)
                 { limit = SYSmax(0, limit);
                     if(!SYSisEqual(limit, myInstancingLimit))
                         mySerialNum++;
                     myInstancingLimit = limit;
                 }
    void         setInstancingLimitAction(int action)
                 { myInstancingLimitAction = SYSclamp(action, 0,2); }
    
    void         setMinHomeZoom(fpreal val)
                 { myMinHomeZoom = SYSmax(val, 0.001); }

    // In millions of polygons (eg, 10 for 10M).
    void         setSubdivisionPolyLimit(int limit)
                 {
                     limit = SYSmax(0, limit);
                     if(limit != mySubdPolyLimit)
                         mySerialNum++;
                     mySubdPolyLimit = limit;
                 }
    
    void         setUVDisplayAttrib(const UT_StringHolder &attrib)
                 {
                     if(myUVAttrib != attrib)
                     {
                         mySerialNum++;
                         myUVAttrib = attrib;
                     }
                 }
    const UT_StringHolder &getUVDisplayAttrib() const { return myUVAttrib; }
    
    // Onion skinning
    bool        isOnionSkinEnabled() const
                        { return mySaveFlags.onionSkinEnable; }
    int         getOnionSkinFrameIncrement() const
                        { return myOnionSkinFrameInc; }
    int         getOnionSkinPreFrameCount() const
                        { return myOnionSkinPreFrameCount; }
    int         getOnionSkinPostFrameCount() const
                        { return myOnionSkinPostFrameCount; }
    const UT_Color &getOnionSkinPreFrameColor() const
                        { return myOnionSkinPreFrameColor; }
    const UT_Color &getOnionSkinPostFrameColor() const
                        { return myOnionSkinPostFrameColor; }
    fpreal      getOnionSkinAlpha() const { return myOnionSkinAlpha; }

    void        setOnionSkinEnable(bool enable)
                        { mySaveFlags.onionSkinEnable = enable; }
        
    void        setOnionSkinParms(int frame_inc,
                                  int pre_count,
                                  int post_count,
                                  UT_Color pre_color,
                                  UT_Color post_color,
                                  fpreal alpha);

    // These are used to determine if geometry-related parms have changed on a
    // very coarse level.
    int          getUniqueID() const         { return myUniqueID; }
    int          getSerialNum() const        { return mySerialNum; }
    void         bumpSerialNum()             { mySerialNum++; }

    // changes when the view is changed. ID changes if the rendered viewport
    // is different. 3D is for 3D view changes, 2D is for screen pan/zoom.
    // getViewSerialID() is bumped for either.
    int          getViewSerialNum() const { return mySerialView +mySerialView2; }
    int          getView3DSerialNum() const   { return mySerialView; }
    int          getView2DSerialNum() const   { return mySerialView2; }
    int          getViewSerialID() const     { return mySerialID; }
    void         setViewSerialNum(int num, int num_2d, int id)
                        {
                            mySerialView = num;
                            mySerialView2 = num_2d;
                            mySerialID = id;
                        }

    bool         isLopsView() const { return myLopsView; } 

    bool         defaultTextureSize() const  { return !myUpdates.texSize; }
    bool         default3DTextureSize() const{ return !myUpdates.tex3DSize; }
    bool         defaultShadowSize() const   { return !myUpdates.shadowSize; }
    bool         defaultReflectSize() const  { return !myUpdates.reflectSize; }
    bool         defaultHDRTexture() const   { return !myUpdates.hdrTexture; }
    bool         defaultHDRReflect() const   { return !myUpdates.hdrReflect; }
    bool         defaultSmoothLines() const  { return !myUpdates.smoothLines; }
    bool         defaultSceneAA() const      { return !myUpdates.sceneAA; }
    bool         defaultTextureMem() const   { return !myUpdates.textureMem; }
    bool         defaultGuideFont() const    { return !myUpdates.guideFont; }
    bool         defaultDPIScale() const     { return !myUpdates.dpiScale; }

    // Turns on the closure selection on hull-based or all geometry
    int          closureSelection() const    { return myClosureSelection; }
    void         closureSelection(int s) { myClosureSelection=SYSclamp(s,0,2); }

    int          getVisContext() const       { return myVisContext; }
    void         setVisContext(int ctxt)     { myVisContext = ctxt; }

    // dummy callbacks for obsolete options.
    bool         obsoleteOption() const { return false; }
    void         obsoleteOption(bool onoff) {}

    static void  setYUp(bool up) { theYUp = up; }
    static bool  isYUp()         { return theYUp; }
    
    // Some looks can render progressively. This reports if this is a) allowed
    // and b) whether the viewport is currently only partially rendered.
    bool                isPartialRender() const { return myIsPartialRender; }
    void                clearPartialRender()    { myIsPartialRender = false; }
    void                setPartialRender()      { myIsPartialRender = true; }
    void                allowPartialRender(bool allowed)
                                          { myAllowPartialRender = allowed; }
    bool                allowsPartialRender() const
                                          { return myAllowPartialRender; }
    void                setPartialPercentDone(fpreal p)
                        { myPartialPercentDone = p; }
    fpreal              getPartialPercentDone() const
                        {
                            return myIsPartialRender ? myPartialPercentDone
                                                     : 100.0;
                        }

    // Lights currently used for rendering
    void                setLightList(const GR_LightList *list)
                        { myLightList = list;}
    const GR_LightList *getLightList() const { return myLightList; }

private:
    void         loadDefaultColors();
    void         getColorsByName();

    // data
    UT_Color     myColors[GR_NUM_DISPLAY_COLORS][2];
    fpreal       myAlphas[GR_NUM_DISPLAY_ALPHAS];
    UT_Color     myCurrentWireColor[2];
    
    UT_String    myVisibleObjects;      // Visibility mask
    GA_PrimCompat::TypeMask myPrimMask; // What types of prims to draw
    unsigned     myPickMask;            // What geo entities to pick

    fpreal       myMarkerSize;          // point,vertex,breakpoint marker diam
    float        myNormalScale;         // A size to scale the normal by
    fpreal       myVectorScale;         // Scale custom vectors
    float        myLOD;                 // level of detail
    float        myHLOffsetVariable;    // hidden line constant offset
    float        myHLOffsetConstant;    // hidden line variable offset
    float        myWireWidth;
    fpreal32     myWireBlend;
    fpreal32     myInteriorWireAlpha;
    GR_ParticleType myParticleDisplayType;
    fpreal       myDPIScale;            // DPI scale factor
    float        myPointSize;           // point size in pixels
    float        myDiscSize;            // disc size
    int          myParticleTextureWidth;  // in pixels
    int          myParticleTextureHeight; // in pixels
    float        myShadowOffsetVariable;// shadow constant offset
    float        myShadowOffsetConstant;// sadow line variable offset
    int          myShadowAA;            // Antialiasing of shadow edges.
    bool         myUseLightShadowSize;  // Shadowmap size source from light
    int          myShadowMapSize;       // Shadowmap size or max size
    int          myReflectMapSize;      // Reflect map resolution
    fpreal       myReflectMinLevel;     // No reflect map below min level
    int          mySelectionListInst;   // which selection instance to draw
    int          mySceneAntialias;      // scene antialiasing (2^a samples).
    int          myTextureAnisotropy;   // Texture anisotropic sampling
    int          myAmbOcclusionLevel;   // 1-4, for more occlusion
    int          myLightSamples;        // 1-64, for area/env light sampling
    float        myViewGamma;
    bool         myUseLUT;
    UT_String    myViewLUT;
    bool         myUseOCIO;
    UT_StringHolder myOCIOColorspace;
    UT_StringHolder myOCIOLooks;
    UT_StringHolder myOCIODisplay;
    UT_StringHolder myOCIOView;
    exint        myOCIOSerial; 
    float        myViewBlack;
    float        myViewWhite;
    int          myViewComponents;
    int          myTransparentQuality;  // Transparent object layering quality
    fpreal       myDisplacementQuality; // Bias displacement auto-LOD
    int          myVolumeQuality;       // Volume slice quality
    fpreal       myVolumeAmbientShadows;// Default intensity of volume ambient shadows
    int          myVolumeBSplines;      // Use b-splines for volume interpolation
                                        // (-1: never, 0: non-interactive, 1: always)
    bool         myActiveRender;        // Is the viewport currently being interacted with?
    int          myClosureSelection;    // 0=hide, 1=hull geo only, 2=show

    fpreal       myNormalCuspAngle;
    int          myVertNormalLimit;
    gr_TangentMethod myTangentMethod;
    
    // 2D Textures
    float        myTextureScale;        // 0.0-1.0
    float        myDynamicScale;        // when dynamic cache adjust is on
    int          myMaxTextureWidth;     // in pixels
    int          myMaxTextureHeight;    // in pixels
    int          myHDRTextureFormat;    // 2=full,1=16FP,0=8b,-1=compressed
    int          myDynamicFormat;

    // 3D Textures. If mySaveFlags.use2DTextureLimits is true, these are ignored
    float        myTexture3DScale;      // 0.0-1.0
    float        myDynamic3DScale;      // when dynamic cache adjust is on
    int          myMaxTexture3DWidth;   // in pixels
    int          myMaxTexture3DHeight;  // in pixels
    int          myMaxTexture3DDepth;   // in pixels
    int          myHDRTexture3DFormat;  // 2=full,1=16FP,0=8b,-1=compressed
    int          myDynamic3DFormat;

    int          myTextureMemLimitMB;   // max single texture size, in MB

    fpreal       myInstancingFraction;  // portion of instances to draw, 0..1
    int          myInstancingLimit;     // #tris
    int          myInstancingLimitAction; // How to handle over-limit instances

    fpreal       myMinHomeZoom;         // minimum area to zoom to when homing

    GR_DisplayColor myCrtAuxColor;      // current auxiliary color

    char         myGotDefaults;
    UT_String    myColorScheme;

    UT_String    myColorAttrib;         // Color override parameters
    int          myColorType;
    fpreal       myColorDomain[2];

    GR_AlphaPass myAlphaPass;           // Type of alpha pass
    GR_DecorFontSize myDecorFontSize;

    fpreal       myAgentLODBias;
    int          myAgentMinPoints;
    int          myAgentBaseLOD;
    int          myAgentMaxLOD;
    int          myAgentBoneDeform;
    int          myAgentWireMode;

    int          myOnionSkinPreFrameCount;
    int          myOnionSkinPostFrameCount;
    int          myOnionSkinFrameInc;
    UT_Color     myOnionSkinPreFrameColor;
    UT_Color     myOnionSkinPostFrameColor;
    fpreal       myOnionSkinAlpha;

    gr_BBoxMode  myBBoxMode;
    int          mySubdPolyLimit;

    UT_StringHolder      myUVAttrib;
    
    static UT_SymbolMap<GR_SchemeColors *>      *ourSchemeDefaults;
    static UT_Array<GR_CommonDispOption *>       ourInstancesArray;

    GR_HandleParts      myHandleParts;

    struct grSaveFlags
    {
        unsigned     drawTexture        :1,
                     drawTransparent    :1,
                     drawDisplacement   :1,
                     drawTexturedSpots  :1,
                     highQualityLighting:1,
                     ambientOcclusion   :1,
                     limitTextureSize   :1,
                     limitTexture3DSize :1,
                     mipMapTextures     :1,
                     hdrRender          :1,
                     drawShadows        :1,
                     drawTransparentMaps:1,
                     removeBackface     :1,
                     correctBG          :1,
                     frameTime          :1,
                     fillSelection      :1,
                     solidOnly          :1,     // Only draw solid geometry.
                                                // Don't bother with shading
                                                // information (normals, etc).
                     drawPartSprite     :1,     // draw particles as sprites
                     orientDiscs        :1,     // draw particles as sprites

                     drawPartOrigin     :1,     // draw particle origin
                     drawHandles        :1,     // draw handles
                     drawHullsOnly      :1,
                     showObjectSelection:1,     // object selection highlight

                     shadeOpenCurves    :1,     // shade open curve in shaded
                     displayAsSubdiv    :1,     // display as subdiv
                     overrideColorAttrib:1,     // override Cd attribute
                     use2DTexLimits     :1,     // 3D tex use 2D tex settings
                     dynamicTexControl  :1,     // dynamic texture cache
                     reduceTex2D        :1,     // controls - auto reduction of
                     reduceTex3D        :1,     // quality when resources are
                     reduceMipMap       :1,     // low.
                     reduceBitDepth     :1,     //
                     drawDiffuse        :1,
                     drawAmbient        :1,
                     drawEmission       :1,
                     useLighting        :1,
                     pointInstancing    :1,
                     polygonConvexQuality:1,
                     autoDPIScale       :1,     // auto-set DPI scale
                     volumeWireAsPoints :1,
                     pickWireAsSolid    :1,     // pick wire prims as solid
                     wireOverPacked     :1,     // draw wire-over for packed geo
                     agentLODEnable     :1,
                     agentBlendShapes   :1,
                     characterDeform    :1,     // deform kinefx characters
                     onionSkinEnable    :1,     // global onion skinning flag
                     cuspNormals        :1,
                     enableReflectionMaps:1, // cubemap gen for refl obj
                     hdrReflectionMaps  :1, // 8b or fp16 refl cubmaps
                     showGeoColor       :1, // show or ignore Cd on geometry
                     interactiveEnable  :1,     // interactive mode is on
                     optPackedGeo       :1, // optimize packed geo for GL
                     outlineSelection   :1, // Outline obj/lop selections
                     offsetVertexDecor  :1,
                     showMaterials:1;       // If materials are shown
   };
    grSaveFlags mySaveFlags;                    // flags that get saved

    struct grNoSaveFlags
    {
        unsigned     snapToSelected     :1,     // snap to selection
                     showComponentSelections :1, // draw geometry component  
                     showTempSelections :1,     // draw temporary or cooked
                                                // selections?
                     pickFrontFaces     :1,     // pick front-facing polygons
                     pickBackFaces      :1,     // pick back-facing polygons
                     drawAuxColors      :1,     // draw auxilary colors for
                                                // things like prim axes
                     forceWireColor     :1,     // use wire color for wire
                     shadingOpenCurves  :1,     // shade open curves
                     drawMultiTexture   :1,     // mat layers in GUI_DispOpts
                     dynamicMipSetting  :1,
                     interactive        :1,     // interactively moving
                     deferTexLoad       :1,     // allow deferred texture loads
                     applyVisualizers   :1;     // master visualization toggle
    };

    // These option can be auto-set by Houdini, so it is important to keep
    // track of whether they have been manually set or loaded from defaults/hip
    // so that they are not overwritten by the auto-set.
    struct gr_UpdatedOptions
    {
        bool    texSize;
        bool    tex3DSize;
        bool    shadowSize;
        bool    reflectSize;
        bool    hdrTexture;
        bool    hdrReflect;
        bool    smoothLines;
        bool    sceneAA;
        bool    textureMem;
        bool    guideFont;
        bool    dpiScale;
    } myUpdates;
    
    grNoSaveFlags      myNoSaveFlags;           // flags that don't get saved

    int                myVisContext;            // vis context (viewport index)
                                                // assigned by vis manager.
    bool               myLopsView;
    int                myUniqueID;
    int                mySerialNum;
    int                mySerialView;
    int                mySerialView2;
    int                mySerialID;
    int               *myGammaPassPtr;          // ptr to gamma pass flag which
                                                // can be changed during render
    const GR_LightList *myLightList;
    static bool        theYUp; 

    bool               myAllowPartialRender;
    bool               myIsPartialRender;
    fpreal             myPartialPercentDone;
};

inline void
GR_CommonDispOption::LOD(float l)
{
    float lod = (l>0.0) ? l : 0.001;
    if(myLOD != lod)
    {
        myLOD = lod;
        mySerialNum++;
    }
}

inline void
GR_CommonDispOption::setColorAttrib(const char *a)
{
    if(myColorAttrib != a)
    {
        myColorAttrib.harden(a);
        mySerialNum++;
    }
}

inline void
GR_CommonDispOption::setColorType(int t)
{
    if(myColorType != t)
    {
        myColorType = t;
        mySerialNum ++;
    }
}

inline void
GR_CommonDispOption::setColorDomain(fpreal s, fpreal e)
{
    if(!SYSisEqual(myColorDomain[0], s) ||
       !SYSisEqual(myColorDomain[1], e))
    {
        myColorDomain[0] = s;
        myColorDomain[1] = e;
        mySerialNum ++;
    }
}
       

#undef FLAG_ACCESSORS

#endif