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Added fog toggling to Viewer.cpp, 'y' reduces fog density, 'Y' increases

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fog density.
This commit is contained in:
Robert Osfield
2002-07-23 15:45:55 +00:00
parent 6d690740a6
commit 9033b8a336
1 changed files with 45 additions and 10 deletions
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55
src/osgGLUT/Viewer.cpp
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@@ -36,6 +36,8 @@
#include <osg/Notify>
#include <osg/CollectOccludersVisitor>
#include <osg/Fog>
#include <osgDB/WriteFile>
#include <osgUtil/IntersectVisitor>
@@ -843,6 +845,7 @@ void Viewer::keyboard(unsigned char key, int x, int y)
sceneView->setGlobalStateSet(globalStateSet);
}
switch( key )
{
@@ -1219,6 +1222,38 @@ void Viewer::keyboard(unsigned char key, int x, int y)
}
break;
case 'y':
case 'Y':
{
osg::Fog* globalFog = dynamic_cast<osg::Fog*>(globalStateSet->getAttribute(osg::StateAttribute::FOG));
if(!globalFog)
{
globalFog = new osg::Fog;
globalFog->setColor(osg::Vec4(0.9,0.9,0.9,1.0));
globalFog->setDensity(0.01f);
globalStateSet->setAttributeAndModes(globalFog,osg::StateAttribute::ON);
}
//increase/reduce fog:
if(globalFog)
{
float density = globalFog->getDensity();
if (key=='y') density -= 0.001;
else density += 0.001;
if (density<0.0f) density=0.0f;
std::cout<<"setting fog density "<<density<<endl;
globalFog->setDensity(density);
}
}
break;
case 27 :
_exit = true;
@@ -1529,16 +1564,16 @@ int writePrims( const int ypos, osg::Statistics& stats)
int npix=0; // offset from ypos
static char *prtypes[]=
{
" Point", // GL_POINTS 0x0000
" Lines", // GL_LINES 0x0001
" LnLoop", // GL_LINE_LOOP 0x0002
" LnStr", // GL_LINE_SRIP 0x0002
" Tris", // GL_TRIANGLES 0x0004
" TriStr", // GL_TRIANGLE_STRIP 0x0005
" TriFan", // GL_TRIANGLE_FAN 0x0006
" Quads", // GL_QUADS 0x0007
" QudStr", // GL_QUAD_STRIP 0x0008
" Poly" // GL_POLYGON 0x0009
" Point", // GL_POINTS 0x0000
" Lines", // GL_LINES 0x0001
" LnLoop", // GL_LINE_LOOP 0x0002
" LnStr", // GL_LINE_SRIP 0x0002
" Tris", // GL_TRIANGLES 0x0004
" TriStr", // GL_TRIANGLE_STRIP 0x0005
" TriFan", // GL_TRIANGLE_FAN 0x0006
" Quads", // GL_QUADS 0x0007
" QudStr", // GL_QUAD_STRIP 0x0008
" Poly" // GL_POLYGON 0x0009
};
glColor3f(.9f,.9f,0.0f);