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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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10
src/OpenGl/OpenGl_View_Redraw.cxx
View File

@@ -1095,11 +1095,6 @@ void OpenGl_View::renderStructs (Graphic3d_Camera::Projection theProjection,
const Standard_Integer aSizeY = theReadDrawFbo != NULL ? theReadDrawFbo->GetVPSizeY() : myWindow->Height();
myOpenGlFBO ->InitLazy (aCtx, aSizeX, aSizeY, myFboColorFormat, myFboDepthFormat, 0);
if (myRaytraceFilter.IsNull())
myRaytraceFilter = new OpenGl_RaytraceFilter;
myRaytraceFilter->SetPrevRenderFilter (myWorkspace->GetRenderFilter());
if (theReadDrawFbo != NULL)
theReadDrawFbo->UnbindBuffer (aCtx);
@@ -1109,7 +1104,8 @@ void OpenGl_View::renderStructs (Graphic3d_Camera::Projection theProjection,
// Render bottom OSD layer
myZLayers.Render (myWorkspace, theToDrawImmediate, OpenGl_LF_Bottom, theReadDrawFbo, theOitAccumFbo);
myWorkspace->SetRenderFilter (myRaytraceFilter);
const Standard_Integer aPrevFilter = myWorkspace->RenderFilter() & ~(Standard_Integer )(OpenGl_RenderFilter_NonRaytraceableOnly);
myWorkspace->SetRenderFilter (aPrevFilter | OpenGl_RenderFilter_NonRaytraceableOnly);
{
if (theReadDrawFbo != NULL)
{
@@ -1123,7 +1119,7 @@ void OpenGl_View::renderStructs (Graphic3d_Camera::Projection theProjection,
// Render non-polygonal elements in default layer
myZLayers.Render (myWorkspace, theToDrawImmediate, OpenGl_LF_Default, theReadDrawFbo, theOitAccumFbo);
}
myWorkspace->SetRenderFilter (myRaytraceFilter->PrevRenderFilter());
myWorkspace->SetRenderFilter (aPrevFilter);
}
if (theReadDrawFbo != NULL)