FGFS-4.1/OpenSceneGraph
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Fixed bug in setting the ratio value

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This commit is contained in:
Robert Osfield 2016-07-18 20:04:45 +01:00
parent 0faebbef33
commit f9172a000e
1 changed files with 7 additions and 7 deletions
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14
examples/osgplanets/osgplanets.cpp
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@ -120,15 +120,15 @@ osg::Image* createBillboardImage(const osg::Vec4& centerColour, unsigned int siz
float mid = (float(size)-1)*0.5f;
float div = 2.0f/float(size);
for(unsigned int r=0;r<size;++r)
for(unsigned int row=0;row<size;++row)
{
unsigned char* ptr = image->data(0,r,0);
for(unsigned int c=0;c<size;++c)
unsigned char* ptr = image->data(0,row,0);
for(unsigned int col=0;col<size;++col)
{
float dx = (float(c) - mid)*div;
float dy = (float(r) - mid)*div;
float dx = (float(col) - mid)*div;
float dy = (float(row) - mid)*div;
float pr = powf(1.0f-sqrtf(dx*dx+dy*dy),power);
if (pr<0.0f) r=0.0f;
if (pr<0.0f) pr=0.0f;
osg::Vec4 color = centerColour*pr+backgroundColour*(1.0f-pr);
// color.set(1.0f,1.0f,1.0f,0.5f);
*ptr++ = (unsigned char)((color[0])*255.0f);
@ -902,7 +902,7 @@ int main( int argc, char **argv )
// run optimization over the scene graph
osgUtil::Optimizer optimzer;
optimzer.optimize( root );
// optimzer.optimize( root );
// set the scene to render
viewer.setSceneData( root );