void TerrainApp::addQuad( int x, int y )
{
Vec2f p00( x, y );
Vec2f p10( x + 1, y );
Vec2f p11( x + 1, y + 1 );
Vec2f p01( x, y + 1 );
float zScale = mHeight;
float noiseScale = mNoiseScale;
float z00 = zScale * mPerlin.fBm( p00 * noiseScale );
float z10 = zScale * mPerlin.fBm( p10 * noiseScale );
float z11 = zScale * mPerlin.fBm( p11 * noiseScale );
float z01 = zScale * mPerlin.fBm( p01 * noiseScale );
size_t idx = mTriMesh.getNumVertices();
// positions
Vec3f t00( p00.x - xSize / 2., z00, p00.y - ySize / 2. );
Vec3f t10( p10.x - xSize / 2., z10, p10.y - ySize / 2. );
Vec3f t11( p11.x - xSize / 2., z11, p11.y - ySize / 2. );
Vec3f t01( p01.x - xSize / 2., z01, p01.y - ySize / 2. );
mTriMesh.appendVertex( t00 );
mTriMesh.appendVertex( t10 );
mTriMesh.appendVertex( t01 );
mTriMesh.appendVertex( t10 );
mTriMesh.appendVertex( t11 );
mTriMesh.appendVertex( t01 );
// normals
Vec3f n0 = ( t10 - t00 ).cross( t10 - t01 ).normalized();
Vec3f n1 = ( t11 - t10 ).cross( t11 - t01 ).normalized();
mTriMesh.appendNormal( n0 );
mTriMesh.appendNormal( n0 );
mTriMesh.appendNormal( n0 );
mTriMesh.appendNormal( n1 );
mTriMesh.appendNormal( n1 );
mTriMesh.appendNormal( n1 );
mTriMesh.appendTriangle( idx, idx + 1, idx + 2 );
mTriMesh.appendTriangle( idx + 3, idx + 4, idx + 5 );
}
void SmoothDisplacementMappingApp::createMesh()
{
// use the TriMesh class to easily construct the vertex buffer object
TriMesh mesh;
// create vertex, normal and texcoord buffers
const int RES_X = 400;
const int RES_Z = 100;
const Vec3f size(200.0f, 1.0f, 50.0f);
for(int x=0;x<RES_X;++x) {
for(int z=0;z<RES_Z;++z) {
float u = float(x) / RES_X;
float v = float(z) / RES_Z;
mesh.appendVertex( size * Vec3f( u - 0.5f , 0.0f, v - 0.5f ) );
mesh.appendNormal( Vec3f::yAxis() );
mesh.appendTexCoord( Vec2f( u, v ) );
}
}
// create index buffer
vector< uint32_t > indices;
for(int x=0;x<RES_X-1;++x) {
for(int z=0;z<RES_Z-1;++z) {
uint32_t i = x * RES_Z + z;
indices.push_back( i ); indices.push_back( i + 1 ); indices.push_back( i + RES_Z );
indices.push_back( i + RES_Z ); indices.push_back( i + 1 ); indices.push_back( i + RES_Z + 1 );
}
}
mesh.appendIndices( &indices.front(), indices.size() );
// construct vertex buffer object
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticTexCoords2d();
layout.setStaticIndices();
layout.setStaticNormals();
mVboMesh = gl::VboMesh( mesh, layout );
}
TriMesh MeshHelper::createTriMesh( vector<uint32_t> &indices, const vector<Vec3f> &positions,
const vector<Vec3f> &normals, const vector<Vec2f> &texCoords )
{
TriMesh mesh;
if ( indices.size() > 0 ) {
mesh.appendIndices( &indices[ 0 ], indices.size() );
}
if ( normals.size() > 0 ) {
for ( vector<Vec3f>::const_iterator iter = normals.begin(); iter != normals.end(); ++iter ) {
mesh.appendNormal( *iter );
}
}
if ( positions.size() > 0 ) {
mesh.appendVertices( &positions[ 0 ], positions.size() );
}
if ( texCoords.size() > 0 ) {
for ( vector<Vec2f>::const_iterator iter = texCoords.begin(); iter != texCoords.end(); ++iter ) {
mesh.appendTexCoord( *iter );
}
}
return mesh;
}
void RodSoundApp::setup()
{
// std::cout << solveBEM(constants::radius) << "\n\n";
// std::cout << "Expected:\n" << -constants::pi * constants::radius * constants::radius * Mat2e::Identity() << "\n\n";
// Setup scene
cam.setPerspective(40.0, getWindowAspectRatio(), 0.1, 1000.0);
cam.lookAt(eyePos, targetPos, Vec3c(0.0, 1.0, 0.0));
// Setup rendering stuff
spheredl = new gl::DisplayList(GL_COMPILE);
spheredl->newList();
gl::drawSphere(Vec3c::zero(), constants::radius);
spheredl->endList();
cylinderdl = new gl::DisplayList(GL_COMPILE);
cylinderdl->newList();
gl::drawCylinder(constants::radius, constants::radius, 1.0);
cylinderdl->endList();
l = new gl::Light(gl::Light::POINT, 0);
try {
rodTex = loadImage(loadResource(RES_SIM_YARN_TEX));
} catch (ImageIoException e) {
std::cerr << "Error loading textures: " << e.what();
exit(1);
}
// Load and compile shaders
try {
diffuseProg = gl::GlslProg(loadResource(RES_SIM_VERT_GLSL), loadResource(RES_SIM_FRAG_GLSL));
rodProg = gl::GlslProg(loadResource(RES_SIM_VERT_TEX_GLSL), loadResource(RES_SIM_FRAG_TEX_GLSL));
} catch (gl::GlslProgCompileExc e) {
std::cerr << "Error compiling GLSL program: " << e.what();
exit(1);
} catch (ResourceLoadExc e) {
std::cerr << "Error loading shaders: " << e.what();
exit(1);
}
floor.appendVertex(Vec3c(-100.0, 0.0, -100.0));
floor.appendNormal(Vec3c(0.0, 1.0, 0.0));
floor.appendTexCoord(Vec2c(-12.0, -12.0));
floor.appendVertex(Vec3c(100.0, 0.0, -100.0));
floor.appendNormal(Vec3c(0.0, 1.0, 0.0));
floor.appendTexCoord(Vec2c(12.0, -12.0));
floor.appendVertex(Vec3c(100.0, 0.0, 100.0));
floor.appendNormal(Vec3c(0.0, 1.0, 0.0));
floor.appendTexCoord(Vec2c(12.0, 12.0));
floor.appendVertex(Vec3c(-100.0, 0.0, 100.0));
floor.appendNormal(Vec3c(0.0, 1.0, 0.0));
floor.appendTexCoord(Vec2c(-12.0, 12.0));
floor.appendTriangle(0, 1, 2);
floor.appendTriangle(0, 3, 2);
ci::Surface s(4, 4, false);
auto iter = s.getIter();
do {
do {
Vec2i pos = iter.getPos();
unsigned char val = pos.x > 0 && pos.x < 3 && pos.y > 0 && pos.y < 3 ? 100 : 150;
iter.r() = iter.g() = iter.b() = val;
} while (iter.pixel());
} while (iter.line());
floorTex = gl::Texture(s);
floorTex.setMagFilter(GL_NEAREST);
floorTex.setWrap(GL_REPEAT, GL_REPEAT);
// Load the rod
loadDefaultRod(50);
// loadRodFile("");
loadStdEnergies();
PROFILER_START("Total");
}
void verticesApp::generateCapsule()
{
vector<uint> indices;
double fDeltaRingAngle = (M_PI_2 / mNumRings);
double fDeltaSegAngle = ((M_PI * 2.0) / mNumSegments);
double sphereRatio = mRadius / (2 * mRadius + mHeight);
double cylinderRatio = mHeight / (2 * mRadius + mHeight);
int offset = 0;
// Top half sphere
// Generate the group of rings for the sphere
for(unsigned int ring = 0; ring <= mNumRings; ring++ )
{
double r0 = mRadius * sinf ( ring * fDeltaRingAngle);
double y0 = mRadius * cosf (ring * fDeltaRingAngle);
// Generate the group of segments for the current ring
for(unsigned int seg = 0; seg <= mNumSegments; seg++)
{
double x0 = r0 * cosf(seg * fDeltaSegAngle);
double z0 = r0 * sinf(seg * fDeltaSegAngle);
Vec3f p(x0, 0.5f * mHeight + y0, z0);
Vec3f n(x0, y0, z0);
mesh.appendVertex(p);
mesh.appendNormal(n.normalized());
mesh.appendTexCoord(Vec2f((double) seg / (double) mNumSegments, (double) ring / (double) mNumRings * sphereRatio));
mesh.appendColorRgb(Colorf(1.0, 0, 0));
// each vertex (except the last) has six indices pointing to it
indices.push_back(offset + mNumSegments + 1);
indices.push_back(offset + mNumSegments);
indices.push_back(offset);
indices.push_back(offset + mNumSegments + 1);
indices.push_back(offset);
indices.push_back(offset + 1);
offset ++;
} // end for seg
} // end for ring
// Cylinder part
double deltaAngle = ((M_PI * 2.0) / mNumSegments);
double deltamHeight = mHeight/(double)mNumSegHeight;
for (unsigned short i = 1; i < mNumSegHeight; i++) {
for (unsigned short j = 0; j<=mNumSegments; j++)
{
double x0 = mRadius * cosf(j*deltaAngle);
double z0 = mRadius * sinf(j*deltaAngle);
Vec3f p(x0, 0.5f*mHeight-i*deltamHeight, z0);
Vec3f n(x0, 0, z0);
mesh.appendVertex(p);
mesh.appendNormal(n.normalized());
mesh.appendTexCoord(Vec2f(j/(double)mNumSegments, i/(double)mNumSegHeight * cylinderRatio + sphereRatio));
mesh.appendColorRgb(Colorf(0, 1.0 - (float(j)/float(mNumSegments)), 0));
indices.push_back(offset + mNumSegments + 1);
indices.push_back(offset + mNumSegments);
indices.push_back(offset);
indices.push_back(offset + mNumSegments + 1);
indices.push_back(offset);
indices.push_back(offset + 1);
offset ++;
}
}
// Bottom half sphere
// Generate the group of rings for the sphere
for(unsigned int ring = 0; ring <= mNumRings; ring++)
{
double r0 = mRadius * sinf (M_PI_2 + ring * fDeltaRingAngle);
double y0 = mRadius * cosf (M_PI_2 + ring * fDeltaRingAngle);
// Generate the group of segments for the current ring
for(unsigned int seg = 0; seg <= mNumSegments; seg++)
{
double x0 = r0 * cosf(seg * fDeltaSegAngle);
double z0 = r0 * sinf(seg * fDeltaSegAngle);
Vec3f p(x0, -0.5f*mHeight + y0, z0);
Vec3f n(x0, y0, z0);
mesh.appendVertex(p);
mesh.appendNormal(n.normalized());
mesh.appendTexCoord(Vec2f((double) seg / (double) mNumSegments, (double) ring / (double) mNumRings*sphereRatio + cylinderRatio + sphereRatio));
mesh.appendColorRgb(Colorf(0, 0, float(ring)/float(mNumRings)));
if (ring != mNumRings)
{
// each vertex (except the last) has six indices pointing to it
indices.push_back(offset + mNumSegments + 1);
indices.push_back(offset + mNumSegments);
indices.push_back(offset);
indices.push_back(offset + mNumSegments + 1);
indices.push_back(offset);
indices.push_back(offset + 1);
}
offset ++;
} // end for seg
} // end for ring
mesh.appendIndices( &indices[0], indices.size());
}
void ssaoApp::setup()
{
gl::disableVerticalSync();
RENDER_MODE = DeferredRenderer::SHOW_FINAL_VIEW;
//set up camera
mCam.setPerspective( 45.0f, getWindowAspectRatio(), 0.1f, 10000.0f );
Vec3f camPos( -14.0f, 7.0f, -14.0f );
mCam.lookAt(camPos * 1.5f, Vec3f::zero(), Vec3f(0.0f, 1.0f, 0.0f) );
mCam.setCenterOfInterestPoint(Vec3f::zero());
mMayaCam.setCurrentCam(mCam);
//create functions pointers to send to deferred renderer
boost::function<void(gl::GlslProg*)> fRenderShadowCastersFunc = boost::bind( &ssaoApp::drawShadowCasters, this, boost::lambda::_1 );
boost::function<void(gl::GlslProg*)> fRenderNotShadowCastersFunc = boost::bind( &ssaoApp::drawNonShadowCasters, this, boost::lambda::_1 );
boost::function<void(void)> fRenderOverlayFunc = boost::bind( &ssaoApp::drawOverlay, this );
mDeferredRenderer.setup( fRenderShadowCastersFunc, fRenderNotShadowCastersFunc, NULL, NULL, &mCam, Vec2i(1024, 768), 1024, true, true ); //no overlay or "particles"
//have these cast point light shadows
mDeferredRenderer.addCubeLight( Vec3f(-2.0f, 4.0f, 6.0f), Color(0.10f, 0.69f, 0.93f) * LIGHT_BRIGHTNESS_DEFAULT, true); //blue
mDeferredRenderer.addCubeLight( Vec3f(4.0f, 6.0f, -4.0f), Color(0.94f, 0.15f, 0.23f) * LIGHT_BRIGHTNESS_DEFAULT, true); //red
//add a bunch of lights
for(int i = 0; i < 10; i++) {
for(int j = 0; j < 10; j++) {
int randColIndex = Rand::randInt(5);
Color randCol;
switch( randColIndex ) {
case 0:
randCol = Color(0.99f, 0.67f, 0.23f); //orange
break;
case 1:
randCol = Color(0.97f, 0.24f, 0.85f); //pink
break;
case 2:
randCol = Color(0.00f, 0.93f, 0.30f); //green
break;
case 3:
randCol = Color(0.98f, 0.96f, 0.32f); //yellow
break;
case 4:
randCol = Color(0.10f, 0.69f, 0.93f); //blue
break;
case 5:
randCol = Color(0.94f, 0.15f, 0.23f); //red
break;
};
mDeferredRenderer.addCubeLight( Vec3f( i * 20, 30, j * 20), randCol * LIGHT_BRIGHTNESS_DEFAULT, false, true);
}
}
mCurrLightIndex = 0;
float size = 3000;
plane.appendVertex(Vec3f(size, -1,-size));
plane.appendColorRgba(ColorA(255,255,255,255));
plane.appendNormal(Vec3f(.0f, 1.0f, 0.0f));
plane.appendVertex(Vec3f(-size, -1,-size));
plane.appendColorRgba(ColorA(255,255,255,255));
plane.appendNormal(Vec3f(.0f, 1.0f, 0.0f));
plane.appendVertex(Vec3f(-size, -1, size));
plane.appendColorRgba(ColorA(255,255,255,255));
plane.appendNormal(Vec3f(.0f, 1.0f, 0.0f));
plane.appendVertex(Vec3f(size, -1, size));
plane.appendColorRgba(ColorA(255,255,255,255));
plane.appendNormal(Vec3f(.0f, 1.0f, 0.0f));
uint indices[6] = {0,1,2,2,3,0};
plane.appendIndices(&indices[0], 6);
gl::VboMesh::Layout layout;
shadowPlane = gl::VboMesh::create(plane);
TriMesh bunnyMesh;
ObjLoader loader( loadResource(RES_BUNNY) );
loader.load( &bunnyMesh );
bunny = gl::VboMesh(bunnyMesh);
}
