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Added sphere cap deformations. This is influenced by config parameter "CapDeformation" (no UI yet) which ranges from 0 (sphere) to 100 (flat). Default is sphere.

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CCMAIL: <lmurray@undefinedfire.com>

svn path=/trunk/KDE/kdebase/workspace/; revision=853464
This commit is contained in:
Martin Gräßlin 2008-08-27 19:02:14 +00:00
parent cc6e98cec9
commit 1e1b0ef7c6
2 changed files with 4 additions and 0 deletions
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3
effects/sphere.cpp
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@ -47,6 +47,7 @@ SphereEffect::SphereEffect()
animateDesktopChange = false; animateDesktopChange = false;
KConfigGroup conf = effects->effectConfig( "Sphere" ); KConfigGroup conf = effects->effectConfig( "Sphere" );
zPosition = conf.readEntry( "ZPosition", 450.0 ); zPosition = conf.readEntry( "ZPosition", 450.0 );
capDeformationFactor = conf.readEntry( "CapDeformation", 0 )/100.0f;
bigCube = true; bigCube = true;
} }
@ -173,7 +174,9 @@ void SphereEffect::paintCapStep( float z, float zTexture, bool texture )
float topAngle = angle*i*M_PI/180.0; float topAngle = angle*i*M_PI/180.0;
float bottomAngle = angle*(i+1)*M_PI/180.0; float bottomAngle = angle*(i+1)*M_PI/180.0;
float yTop = rect.height() - radius * cos( topAngle ); float yTop = rect.height() - radius * cos( topAngle );
yTop -= (yTop-rect.height()*0.5)*capDeformationFactor;
float yBottom = rect.height() -radius * cos( bottomAngle ); float yBottom = rect.height() -radius * cos( bottomAngle );
yBottom -= (yBottom-rect.height()*0.5)*capDeformationFactor;
for( int j=0; j<36; j++ ) for( int j=0; j<36; j++ )
{ {
float x = radius * sin( topAngle ) * sin( (90.0+j*10.0)*M_PI/180.0 ); float x = radius * sin( topAngle ) * sin( (90.0+j*10.0)*M_PI/180.0 );

1
effects/sphere.h
View file

@ -45,6 +45,7 @@ class SphereEffect
bool mInited; bool mInited;
bool mValid; bool mValid;
GLShader* mShader; GLShader* mShader;
float capDeformationFactor;
}; };
} // namespace } // namespace