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0029874: Visualization - capping plane transparency does not work

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Interface OpenGl_RenderFilter and its implementations have been merged into OpenGl_Workspace.
This limits flexibility of interface, but simplifies logic.
- OpenGl_RenderFilter_FillModeOnly flag replaces OpenGl_CappingAlgoFilter;
- OpenGl_RenderFilter_NonRaytraceableOnly flag replaces OpenGl_RaytraceFilter;
- OpenGl_RenderFilter_OpaqueOnly flag replaces OpenGl_OpaqueFilter;
- OpenGl_RenderFilter_TransparentOnly flag replaces OpenGl_TransparentFilter.

OpenGl_CappingAlgo now:
- avoids redundant Stencil clearing when Layer contains at least one transparent Element;
- renders semitransparent capping plane within transparent elements pass.

vclipplane command has been extended by new argument -transparency.
This commit is contained in:
kgv
2018-06-15 19:39:31 +03:00
committed by bugmaster
parent 14823c6f5e
commit 1b661a81d5
15 changed files with 249 additions and 363 deletions
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46
src/ViewerTest/ViewerTest_ViewerCommands.cxx
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@@ -8539,6 +8539,49 @@ static int VClipPlane (Draw_Interpretor& theDi, Standard_Integer theArgsNb, cons
aClipPlane->SetCappingMaterial (aMat);
anArgIter += aNbParsed;
}
else if ((aChangeArg == "-transparency"
|| aChangeArg == "-transp")
&& aNbChangeArgs >= 2)
{
TCollection_AsciiString aValStr (aChangeArgs[1]);
Handle(Graphic3d_AspectFillArea3d) anAspect = aClipPlane->CappingAspect();
if (aValStr.IsRealValue())
{
Graphic3d_MaterialAspect aMat = aClipPlane->CappingMaterial();
aMat.SetTransparency ((float )aValStr.RealValue());
anAspect->SetAlphaMode (Graphic3d_AlphaMode_BlendAuto);
aClipPlane->SetCappingMaterial (aMat);
}
else
{
aValStr.LowerCase();
Graphic3d_AlphaMode aMode = Graphic3d_AlphaMode_BlendAuto;
if (aValStr == "opaque")
{
aMode = Graphic3d_AlphaMode_Opaque;
}
else if (aValStr == "mask")
{
aMode = Graphic3d_AlphaMode_Mask;
}
else if (aValStr == "blend")
{
aMode = Graphic3d_AlphaMode_Blend;
}
else if (aValStr == "blendauto")
{
aMode = Graphic3d_AlphaMode_BlendAuto;
}
else
{
std::cout << "Syntax error at '" << aValStr << "'\n";
return 1;
}
anAspect->SetAlphaMode (aMode);
aClipPlane->SetCappingAspect (anAspect);
}
anArgIter += 1;
}
else if (aChangeArg == "-texname"
|| aChangeArg == "texname")
{
@@ -12367,7 +12410,7 @@ void ViewerTest::ViewerCommands(Draw_Interpretor& theCommands)
"\n\t\t: [-set|-unset|-setOverrideGlobal [objects|views]]"
"\n\t\t: [-maxPlanes]"
"\n\t\t: [-capping {0|1}]"
"\n\t\t: [-color R G B] [-hatch {on|off|ID}]"
"\n\t\t: [-color R G B] [-transparency Value] [-hatch {on|off|ID}]"
"\n\t\t: [-texName Texture] [-texScale SX SY] [-texOrigin TX TY]"
"\n\t\t: [-texRotate Angle]"
"\n\t\t: [-useObjMaterial {0|1}] [-useObjTexture {0|1}]"
@@ -12383,6 +12426,7 @@ void ViewerTest::ViewerCommands(Draw_Interpretor& theCommands)
"\n\t\t: Capping options:"
"\n\t\t: -capping {off|on|0|1} turn capping on/off"
"\n\t\t: -color R G B set capping color"
"\n\t\t: -transparency Value set capping transparency 0..1"
"\n\t\t: -texName Texture set capping texture"
"\n\t\t: -texScale SX SY set capping tex scale"
"\n\t\t: -texOrigin TX TY set capping tex origin"