void triMeshApp::setup(){
// cam, lights material
mCam = new CameraPersp(getWindowWidth(), getWindowHeight(), 45.0f);
mCam->lookAt( Vec3f(300, 700, -600), Vec3f(0,0,0) );
mCam->setPerspective( 60.0f, getWindowAspectRatio(), 0.1f, 5000.0f );
yrot = 0;
glEnable(GL_DEPTH_TEST);
glShadeModel(GL_SMOOTH);
glEnable(GL_LIGHTING);
glEnable(GL_NORMALIZE);
mLight = new gl::Light(gl::Light::DIRECTIONAL, 0);
mLight->setDirection( Vec3f(0,0.1,0.3).normalized());
mLight->setAmbient( Color( 0.2f, 0.2f, 0.2f ) );
mLight->setDiffuse( Color( 1.0f, 1.0f, 1.0f ) );
mLight->update( *mCam );
mLight->enable();
mMaterial1.setSpecular( Color(0.5,0.5,0.5) );
mMaterial1.setDiffuse( Color( 0.0f, 1.0f, 0.0f ) );
mMaterial1.setAmbient( Color( 0.1f, 0.1f, 0.1f ) );
mMaterial1.setShininess( 20.0f );
mMaterial1.apply();
mMaterial2.setSpecular( Color(0,0,0) );
mMaterial2.setDiffuse( Color(1,0,0) );
mMaterial2.setAmbient( Color( 0.4f, 0.0f, 0.0f ) );
mMaterial2.setEmission(Color(1,0,0));
initPhysics();
ObjLoader loader( loadResource( RES_LOSPHERE )->createStream() );
loader.load( &mConvex );
mVBO = gl::VboMesh( mConvex );
ObjLoader loader2( loadResource( RES_TORUS )->createStream() );
loader2.load( &mConcave );
mVBOTerrain = gl::VboMesh( mConcave );
btConvexHullShape* shape = bullet::createConvexHullShape(mConvex, Vec3f(CONVEX_SCALE, CONVEX_SCALE, CONVEX_SCALE));
m_convexRigidBody = bullet::createConvexHullBody(m_dynamicsWorld, shape, Vec3f(0,500,0), 10000);
btBvhTriangleMeshShape* concaveShape = bullet::createStaticConcaveMeshShape(mConcave, Vec3f(CONCAVE_SCALE, CONCAVE_SCALE, CONCAVE_SCALE), 5.0f);
m_concaveRigidBody = bullet::createStaticRigidBody(m_dynamicsWorld, concaveShape, Vec3f(0,255,0));
m_hfImage = loadImage(loadResource(RES_HEIGHTMAP));
m_hfChannel = new Channel32f(m_hfImage);
// note that HF_HEIGHTSCALE is ignored since we are using float data. we adjust the y-scale with the local scaling parameter only!
btHeightfieldTerrainShape* hfShape = bullet::createHeightfieldTerrainShape(m_hfChannel, 64, 64, HF_HEIGHTSCALE, -500, 500, 1, Vec3f(HF_SCALE,HF_SCALEY,HF_SCALE));
m_hfRigidBody = bullet::createStaticRigidBody(m_dynamicsWorld, hfShape, Vec3f(0,0,0));
gl::VboMesh::Layout layout;
layout.setDynamicColorsRGB();
layout.setDynamicPositions();
mVBOHeightfield = gl::VboMesh( m_hfImage.getWidth() * m_hfImage.getHeight(), 0, layout, GL_POINTS );
updateData( );
}
void DelaunayMeshMaker::fileDrop( FileDropEvent event ){
try {
mSurface = loadImage( event.getFile( 0 ) );
int width = mSurface.getWidth();
int height = mSurface.getHeight();
app::setWindowSize( width, height );
mFbo = gl::Fbo( width, height, false );
mBorderPoints.clear();
mBorderPoints.push_back( Vec2f::zero() );
mBorderPoints.push_back( Vec2f( (float)width, 0 ) );
mBorderPoints.push_back( Vec2f( (float)width ,(float)height ) );
mBorderPoints.push_back( Vec2f( 0 ,(float)height ) );
mSteinerPoints.clear();
mMesh.clear();
tesselate();
}
catch( ... ) {
console() << "unable to load the texture file!" << std::endl;
};
}
void DelaunayMeshMaker::setup()
{
mSurface = loadImage( app::loadAsset( "texture0.jpg" ) );
int width = mSurface.getWidth();
int height = mSurface.getHeight();
app::setWindowSize( width, height );
mFbo = gl::Fbo( width, height, false );
mBorderPoints.push_back( Vec2f::zero() );
mBorderPoints.push_back( Vec2f( (float)width, 0 ) );
mBorderPoints.push_back( Vec2f( (float)width ,(float)height ) );
mBorderPoints.push_back( Vec2f( 0 ,(float)height ) );
mMesh.clear();
mParams = params::InterfaceGl( "Parameters", Vec2i( 300, 250 ) );
mParams.addParam( "Alpha", &mAlpha, "max=1.0 min=0.0 step=0.005" );
mParams.addParam( "Blend", &mBlend );
mParams.addParam( "Phong Shading", &mApplyPhongShading );
mParams.addParam( "Depth Offset", &mDepthOffset, "step=0.1" );
mParams.addParam( "Draw wireframe", &mDrawWireframe );
mParams.addSeparator();
mParams.addText("Edge detection");
mParams.addParam( "Edge detection scale down", &mScaleDown, "min=1" );
mParams.addParam( "Minimum threshold", &mCannyMinThreshold, "min=0.0f" );
mParams.addParam( "Maximum threshold", &mCannyMaxThreshold, "min=0.0f" );
mParams.addSeparator();
mParams.addButton( "Tesselate", std::bind( &DelaunayMeshMaker::tesselate, this ) );
mScaleDown = 8;
mScaleDownPrev = mScaleDown;
mCannyMinThreshold = 60.0;
mCannyMaxThreshold = 70.0;
mAlpha = 0.0f;
mBlend = false;
mApplyPhongShading = false;
mDrawWireframe = false;
mDepthOffset = 0.0f;
mPrevDepthOffset = mDepthOffset;
mPrevBlend = mBlend;
mPhongShader = gl::GlslProg( loadAsset("phong_vert.glsl"), loadAsset("phong_frag.glsl") );
mEdgeDetectSurface = edgeDetect( Surface8u( mSurface ), mCannyMinThreshold, mCannyMaxThreshold, mScaleDownPrev );
mTesselator = Tesselator::makeTesselator();
mTesselator->sDone.connect( boost::bind( &DelaunayMeshMaker::onTesselationDone, this ) );
}
void BasicApp::openFile()
{
mImage = loadImage( loadAsset( "mona.jpg" ) );
mWidth = mImage.getWidth();
mHeight = mImage.getHeight();
dx::VboMesh::Layout layout;
layout.setDynamicColorsRGB();
layout.setDynamicPositions();
mVboMesh = dx::VboMesh( mWidth * mHeight, 0, layout, D3D_PRIMITIVE_TOPOLOGY_POINTLIST );
updateData( kColor );
}
void ImageHFApp::openFile()
{
fs::path path = getOpenFilePath( "", ImageIo::getLoadExtensions() );
if( ! path.empty() ) {
mImage = loadImage( path );
mWidth = mImage.getWidth();
mHeight = mImage.getHeight();
mVboMesh = gl::VboMesh::create( mWidth * mHeight, GL_POINTS, { gl::VboMesh::Layout().usage(GL_STATIC_DRAW).attrib(geom::POSITION, 3).attrib(geom::COLOR, 3) } );
mPointsBatch = gl::Batch::create( mVboMesh, gl::getStockShader( gl::ShaderDef().color() ) );
updateData( kColor );
}
}
Texture::Texture( const Surface32f &surface, Format format )
: mObj( shared_ptr<Obj>( new Obj( surface.getWidth(), surface.getHeight() ) ) )
{
if( format.mInternalFormat < 0 ) {
#if ! defined( CINDER_GLES )
if( GLEE_ARB_texture_float )
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA32F_ARB : GL_RGB32F_ARB;
else
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA : GL_RGB;
#else
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA : GL_RGB;
#endif
}
mObj->mInternalFormat = format.mInternalFormat;
mObj->mTarget = format.mTarget;
init( surface.getData(), surface.hasAlpha()?GL_RGBA:GL_RGB, format );
}
void triMeshApp::updateData()
{
Surface32f::Iter pixelIter = m_hfImage.getIter();
gl::VboMesh::VertexIter vertexIter( mVBOHeightfield );
while( pixelIter.line() ) {
while( pixelIter.pixel() ) {
Color color( pixelIter.r(), pixelIter.g(), pixelIter.b() );
float height;
height = color.dot( Color( 0.3333f, 0.3333f, 0.3333f ) );
// the x and the z coordinates correspond to the pixel's x & y
float x = (pixelIter.x() - m_hfImage.getWidth() / 2.0f);
float z = (pixelIter.y() - m_hfImage.getHeight() / 2.0f);
vertexIter.setPosition( x * HF_SCALE, height * HF_SCALEY, z * HF_SCALE);
vertexIter.setColorRGB( color );
++vertexIter;
}
}
}
Texture::Texture( const Surface32f &surface, Format format )
: mObj( shared_ptr<Obj>( new Obj( surface.getWidth(), surface.getHeight() ) ) )
{
#if defined( CINDER_MAC )
bool supportsTextureFloat = gl::isExtensionAvailable( "GL_ARB_texture_float" );
#elif defined( CINDER_MSW )
bool supportsTextureFloat = GLEE_ARB_texture_float != 0;
#endif
if( format.mInternalFormat < 0 ) {
#if ! defined( CINDER_GLES )
if( supportsTextureFloat )
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA32F_ARB : GL_RGB32F_ARB;
else
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA : GL_RGB;
#else
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA : GL_RGB;
#endif
}
mObj->mInternalFormat = format.mInternalFormat;
mObj->mTarget = format.mTarget;
init( surface.getData(), surface.hasAlpha()?GL_RGBA:GL_RGB, format );
}