void ShadowMapSample::draw()
{
gl::clear();
gl::enableDepthWrite();
glEnable( GL_LIGHTING );
updateShadowMap();
gl::enableDepthRead();
glEnable( GL_TEXTURE_2D );
mDepthFbo.bindDepthTexture();
mShader.bind();
mShader.uniform( "shadowTransMatrix", mLight->getShadowTransformationMatrix( *mCamera ) );
if( mLookThroughCamera )
gl::setMatrices( *mCamera );
else
gl::setMatrices( mLight->getShadowCamera() );
mLight->update( *mCamera );
glPushMatrix();
mBackboard.draw();
mTorus.draw();
gl::drawCube( vec3::zero(), vec3( 1, 1, 1 ) );
glPopMatrix();
mShader.unbind();
mDepthFbo.unbindTexture();
// Draw the lighting frustum unless we're looking through it
if( mLookThroughCamera ) {
glDisable( GL_LIGHTING );
glColor3f( 1.0f, 1.0f, 0.1f );
gl::drawFrustum( mLight->getShadowCamera() );
}
if( mDrawDepthMap ) { // there are faster ways to achieve this, but this is a handy way to see the depth map
gl::setMatricesWindow( getWindowSize() );
Surface32f shadowMapSurface( mDepthFbo.getDepthTexture() );
ip::hdrNormalize( &shadowMapSurface );
gl::color( Color::white() );
gl::draw( gl::Texture( shadowMapSurface ), Rectf( 0, 0, 128, 128 ) );
}
}
void PopGameApp::draw()
{
if(getElapsedFrames()>200)return;
gl::pushMatrices();
gl::setMatrices( *mCamera );
gl::enable(GL_DEPTH_TEST);
gl::clear(ColorA(0.5,0.5,0.5,1));
gl::enableDepthWrite();
glEnable( GL_LIGHTING );
updateShadowMap();
gl::enableDepthRead();
// clear out the window with black
glEnable( GL_TEXTURE_2D );
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, 0.5);
mShader.bind();
mDepthFbo.bindDepthTexture(1);
mShader.uniform( "shadowTransMatrix", mLight->getShadowTransformationMatrix( *mCamera ) );
//gl::enable(GL_BLEND);
mLight->update( *mCamera );
gl::pushMatrices();
stage.int_draw();
gl::popMatrices();
gl::popMatrices();
// gl::setMatrices( *mCamera );
mShader.unbind();
gl::disable (GL_DEPTH_TEST);
glDisable( GL_LIGHTING );
glDisable (GL_ALPHA_TEST);
glEnable(GL_BLEND);
gl::enableAlphaBlending();
stage2D.int_draw();
glDisable(GL_BLEND);
gl::disableAlphaBlending();
/*
glDisable( GL_LIGHTING );
gl::setMatricesWindow( getWindowSize() );
Surface32f shadowMapSurface( mDepthFbo.getDepthTexture() );
ip::hdrNormalize( &shadowMapSurface );
gl::color( Color::white() );
gl::draw( gl::Texture( shadowMapSurface ), Rectf( 0, 0, 128*2, 128*2 ) );
*/
}