void RepulsionApp::setFboVelocities( gl::Fbo &fbo )
{
Surface32f vel( fbo.getTexture() );
Surface32f::Iter it = vel.getIter();
while( it.line() ){
while( it.pixel() ){
Vec3f r = Rand::randVec3f() * 0.1f;
it.r() = 0.0f;//r.x;
it.g() = 0.0f;//r.y;
it.b() = 0.0f;//r.z;
it.a() = 0.0f;
}
}
gl::Texture velTexture( vel );
velTexture.bind();
gl::setMatricesWindow( mFboSize, false );
gl::setViewport( mFboBounds );
fbo.bindFramebuffer();
mVelInitShader.bind();
mVelInitShader.uniform( "initTex", 0 );
gl::drawSolidRect( mFboBounds );
mVelInitShader.unbind();
fbo.unbindFramebuffer();
}
void CatalogApp::setFboPositions( gl::Fbo &fbo )
{
int numBrightStars = mBrightStars.size();
int index = 0;
Surface32f posSurface( fbo.getTexture() );
Surface32f::Iter it = posSurface.getIter();
while( it.line() ){
while( it.pixel() ){
Vec3f pos = Vec3f( 1000000.0f, 0.0f, 0.0f );
float col = 0.4f;
float rad = 0.0f;
if( index < numBrightStars ){
pos = mBrightStars[index]->mPos;
col = mBrightStars[index]->mColor;
rad = floor( constrain( ( ( 6.0f - ( mBrightStars[index]->mAbsoluteMag ) )/6.0f ), 0.3f, 1.0f ) * 3.0f * 1000 );
}
it.r() = pos.x;
it.g() = pos.y;
it.b() = pos.z;
it.a() = rad + col;
index ++;
}
}
gl::Texture posTexture( posSurface );
fbo.bindFramebuffer();
gl::setMatricesWindow( fbo.getSize(), false );
gl::setViewport( fbo.getBounds() );
gl::clear( ColorA( 0, 0, 0, 0 ), true );
gl::draw( posTexture );
fbo.unbindFramebuffer();
}
void RepulsionApp::setFboPositions( gl::Fbo &fbo )
{
Surface32f pos( fbo.getTexture() );
Surface32f::Iter it = pos.getIter();
while( it.line() ){
while( it.pixel() ){
Vec3f r = mRoom.getRandRoomPos();
float mass = Rand::randFloat( 20.0f, 30.0f );
if( Rand::randFloat() < 0.05f )
mass = Rand::randFloat( 50.0f, 60.0f );
if( it.y() < 5 && it.x() < 50 )
mass = Rand::randFloat( 300.0f, 5000.0f );
else
mass = Rand::randFloat( 50.0f, 300.0f );
it.r() = r.x;
it.g() = r.y;
it.b() = r.z;
it.a() = 100.0f;
}
}
gl::Texture posTexture( pos );
posTexture.bind();
gl::setMatricesWindow( mFboSize, false );
gl::setViewport( mFboBounds );
fbo.bindFramebuffer();
mPosInitShader.bind();
mPosInitShader.uniform( "initTex", 0 );
gl::drawSolidRect( mFboBounds );
mPosInitShader.unbind();
fbo.unbindFramebuffer();
}