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From Laurens Voerman, "

Browse Source 
osgPlugins\pfb\ConvertFromPerformer.cpp

Added support for
       PFSTATE_ALPHAFUNC
       PFSTATE_ALPHAREF
Improved handling of
       PFTR_NO_OCCLUDE

I have tested this with WIN32 performer 3.1 and 3.2.2
and linux OpenGL Performer 3.1.1"

------------------------------------------------
This commit is contained in:
Robert Osfield
2006-08-10 13:12:47 +00:00
parent a4063335fa
commit 0c91825ee6
1 changed files with 50 additions and 1 deletions
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51
src/osgPlugins/pfb/ConvertFromPerformer.cpp
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@@ -19,6 +19,8 @@
#include <osg/Geometry>
#include <osg/Sequence>
#include <osg/ShadeModel>
#include <osg/Depth>
#include <osg/AlphaFunc>
#include <osgDB/FileNameUtils>
#include <osgDB/Registry>
@@ -1021,10 +1023,57 @@ osg::StateSet* ConvertFromPerformer::visitGeoState(osg::Drawable* osgDrawable,pf
// if (inherit & PFSTATE_ENTEXLOD) osg::notify(DEBUG) << "Inherit PFSTATE_ENTEXLOD"<<std::endl;
// else osg::notify(DEBUG) << "Define PFSTATE_ENTEXLOD"<<std::endl;
if (!(inherit & PFSTATE_ALPHAFUNC)) {
int mode = geostate->getMode(PFSTATE_ALPHAFUNC);
float value = geostate->getVal(PFSTATE_ALPHAREF);
osg::AlphaFunc* aFunc = new osg::AlphaFunc();
switch (mode) {
case PFAF_ALWAYS:
aFunc->setFunction(osg::AlphaFunc::ALWAYS); //==PFAF_OFF in performer 311
break;
case PFAF_EQUAL:
aFunc->setFunction(osg::AlphaFunc::EQUAL);
break;
case PFAF_GEQUAL:
aFunc->setFunction(osg::AlphaFunc::GEQUAL);
break;
case PFAF_GREATER:
aFunc->setFunction(osg::AlphaFunc::GREATER);
break;
case PFAF_LEQUAL:
aFunc->setFunction(osg::AlphaFunc::LEQUAL);
break;
case PFAF_LESS:
aFunc->setFunction(osg::AlphaFunc::LESS);
break;
case PFAF_NEVER:
aFunc->setFunction(osg::AlphaFunc::NEVER);
break;
case PFAF_NOTEQUAL:
aFunc->setFunction(osg::AlphaFunc::NOTEQUAL);
break;
// case PFAF_OFF: //==PFAF_ALWAYS
// break;
default: //warn PFAF not recognized?
break;
}
aFunc->setReferenceValue(value);
if (mode != PFAF_OFF) {
osgStateSet->setAttributeAndModes(aFunc);
} else {
osgStateSet->setAttributeAndModes(aFunc,osg::StateAttribute::OFF);
}
}
if (inherit & PFSTATE_TRANSPARENCY) osgStateSet->setMode(GL_BLEND,osg::StateAttribute::INHERIT);
else
{
int mode = geostate->getMode(PFSTATE_TRANSPARENCY);
if (mode & PFTR_NO_OCCLUDE) {
mode &= ~PFTR_NO_OCCLUDE;//remove NO_OCCLUDE bit
osg::Depth* depth = new osg::Depth(osg::Depth::LESS,0.0f,1.0f,false);
osgStateSet->setAttributeAndModes(depth);
}
switch(mode)
{
case(PFTR_FAST):
@@ -1032,7 +1081,7 @@ osg::StateSet* ConvertFromPerformer::visitGeoState(osg::Drawable* osgDrawable,pf
case(PFTR_BLEND_ALPHA):
case(PFTR_MS_ALPHA):
case(PFTR_MS_ALPHA_MASK):
case(PFTR_NO_OCCLUDE):
// case(PFTR_NO_OCCLUDE): //this is a bit flag.
case(PFTR_ON):
osgStateSet->setMode(GL_BLEND,osg::StateAttribute::ON);
osgStateSet->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);