void Corrdinate_spacesApp::update()
{
vector<Vec3f> positions;
positions.resize(4);
for( int i=0;i<positions.size();i++ ){
Perlin p;
positions[i] = 3. * ( p.dnoise( getElapsedSeconds()+i,
getElapsedSeconds()+i*2,
getElapsedSeconds() ) * 2 - Vec3f(1.,1.,1.) );
}
mVboMesh->bufferPositions(positions);
mVboMesh->unbindBuffers();
}
void Corrdinate_spacesApp::setup()
{
vector<Vec3f> positions;
vector<uint32_t> indices;
positions.push_back( Vec3f( -1, 1, 0) ); //0
positions.push_back( Vec3f( -1, -1, 0) ); //1
positions.push_back( Vec3f( 1, -1, 0) ); //2
positions.push_back( Vec3f( 1, 1, 0) ); //3
indices.push_back(1);
indices.push_back(3);
indices.push_back(0);
indices.push_back(1);
indices.push_back(2);
indices.push_back(3);
// mMesh.appendVertices(positions.data(), positions.size());
// mMesh.appendIndices(indices.data(), indices.size());
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticIndices();
mVboMesh = gl::VboMesh::create( 4, 6, layout, GL_TRIANGLES );
mVboMesh->bufferPositions(positions);
mVboMesh->bufferIndices(indices);
mVboMesh->unbindBuffers();
mCam.setPerspective(60, getWindowAspectRatio(), .1, 10000);
mCam.lookAt( Vec3f(0,0,5), Vec3f(0,0,0), Vec3f::yAxis() );
}