Method draw

samples/Geometry/src/GeometryApp.cpp:190–270

}

void GeometryApp::draw()
{
	// Prepare for drawing.
	gl::clear();
	gl::setMatrices( mCamera );

	// Enable the depth buffer.
	gl::enableDepthRead();
	gl::enableDepthWrite();

	if( mPrimitive ) {
		gl::ScopedTextureBind scopedTextureBind( mTexture );
		mPhongShader->uniform( "uTexturingMode", mTexturingMode );
		mPhongShader->uniform( "uFreq", ( mPrimitiveCurrent == TORUSKNOT ) ? ivec2( 100, 10 ) : ivec2( 20 ) );

		// Rotate it slowly around the y-axis.
		gl::ScopedModelMatrix matScope;
		//gl::rotate( float( getElapsedSeconds() / 5 ), 0, 1, 0 );

		// Draw the normals.
		if( mShowNormals && mPrimitiveNormalLines ) {
			gl::ScopedColor colorScope( Color( 1, 1, 0 ) );
			mPrimitiveNormalLines->draw();
		}

		// Draw the tangents.
		if( mShowTangents && mPrimitiveTangentLines ) {
			gl::ScopedColor colorScope( Color( 0, 1, 0 ) );
			mPrimitiveTangentLines->draw();
		}

		// Draw the wire primitive.
		if( mShowWirePrimitive && mPrimitiveWire ) {
			gl::ScopedColor color( Color( 1, 1, 1 ) );
			gl::ScopedLineWidth linewidth( 2.5f );

			mPrimitiveWire->draw();
		}

		// Draw the primitive.
		if( mShowSolidPrimitive ) {
			gl::ScopedColor colorScope( Color( 1, 1, 1 ) );

			if( mViewMode == WIREFRAME ) {
				// We're using alpha blending, so render the back side first.
				gl::ScopedBlendAlpha blendScope;
				gl::ScopedFaceCulling cullScope( true, GL_FRONT );

				mWireframeShader->uniform( "uBrightness", 0.5f );
				mPrimitiveWireframe->draw();

				// Now render the front side.
				gl::cullFace( GL_BACK );

				mWireframeShader->uniform( "uBrightness", 1.0f );
				mPrimitiveWireframe->draw();
			}
			else {