void ciFaceTracker::addTriangleIndices(TriMesh& mesh) const {
for (int i = 0; i < mTri.rows; i++) {
int i0 = mTri.it(i, 0), i1 = mTri.it(i, 1), i2 = mTri.it(i, 2);
bool visible = getVisibility(i0) && getVisibility(i1) && getVisibility(i2);
if (mUseInvisible || visible) {
mesh.appendTriangle(i0, i1, i2);
}
}
}
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 addQuadToMesh( TriMesh& mesh, const Vec3f& P0, const Vec3f& P1, const Vec3f& P2, const Vec3f& P3 )
{
mesh.appendVertex( P0 );
mesh.appendVertex( P1 );
mesh.appendVertex( P2 );
mesh.appendVertex( P3 );
int vert0 = mesh.getNumVertices() - 4;
int vert1 = mesh.getNumVertices() - 1;
int vert2 = mesh.getNumVertices() - 2;
int vert3 = mesh.getNumVertices() - 3;
mesh.appendTriangle( vert0, vert1, vert3 );
mesh.appendTriangle( vert3, vert1, vert2 );
}
void GeoDeVisualizerApp::writeMesh(json &j)
{
vector<Vec3f> vertices;
for (json::iterator vecIt = j["vertices"].begin(); vecIt != j["vertices"].end(); vecIt += 3) {
vertices.push_back(Vec3f(*vecIt, *(vecIt+1), *(vecIt+2)));
}
u32 i = 0;
for (json::iterator faceIt = j["face indices"].begin(); faceIt != j["face indices"].end(); faceIt += 3) {
mTriangles.appendTriangle(3*i, 3*i+1, 3*i+2);
mTriangles.appendVertex(vertices[*faceIt]);
mTriangles.appendVertex(vertices[*(faceIt+1)]);
mTriangles.appendVertex(vertices[*(faceIt+2)]);
i++;
}
}
BaseMeshRef SimpleMesh::generateQuad(Rectf dimensions,
Rectf uvCoords = Rectf(0.0f, 0.0f, 1.0f,
1.0f)) {
// cout << "SimpleMesh::GenerateQuad(); dims: " << dimensions
// << " uvCoords: " << uvCoords << endl;
TriMesh mesh;
mesh.clear();
// Vertexes
mesh.appendVertex(Vec3f(dimensions.x1, dimensions.y1, 0));
mesh.appendVertex(Vec3f(dimensions.x1, dimensions.y2, 0));
mesh.appendVertex(Vec3f(dimensions.x2, dimensions.y2, 0));
mesh.appendVertex(Vec3f(dimensions.x2, dimensions.y1, 0));
// Vertex Colors
mesh.appendColorRgb(Color(1.0f, 1.0f, 1.0f));
mesh.appendColorRgb(Color(1.0f, 1.0f, 1.0f));
mesh.appendColorRgb(Color(1.0f, 1.0f, 1.0f));
mesh.appendColorRgb(Color(1.0f, 1.0f, 1.0f));
// Tex coords
mesh.appendTexCoord(Vec2f(uvCoords.x1, uvCoords.y1));
mesh.appendTexCoord(Vec2f(uvCoords.x1, uvCoords.y2));
mesh.appendTexCoord(Vec2f(uvCoords.x2, uvCoords.y2));
mesh.appendTexCoord(Vec2f(uvCoords.x2, uvCoords.y1));
int vert0 = mesh.getNumVertices() - 4;
int vert1 = mesh.getNumVertices() - 1;
int vert2 = mesh.getNumVertices() - 2;
int vert3 = mesh.getNumVertices() - 3;
mesh.appendTriangle(vert0, vert1, vert3);
mesh.appendTriangle(vert3, vert1, vert2);
mesh.recalculateNormals();
SimpleMeshRef meshWrapper = make_shared<SimpleMesh>(mesh);
meshWrapper->_bounds = mesh.calcBoundingBox();
return dynamic_pointer_cast<BaseMesh>(meshWrapper);
}
void ProjectionMappingApp::bezierMesh(const int mode)
{
const int span = mSpan;
float hx = mHandleSize;
float hy = mHandleSize;
//if (mode == 0) { mMesh.clear(); }
int k = 0;
for (int ix = 0; ix < mGridNum.x-1; ++ix) {
for (int iu = 0; iu < span; ++iu) {
if (ix > 0 && iu == 0) continue;
for (int iy = 0; iy < mGridNum.y-1; ++iy) {
for (int iv = 0; iv < span; ++iv) {
if (iy > 0 && iv == 0) continue;
int loc0 = ((ix+0)*(mGridNum.y)) + (iy+0);
int loc1 = ((ix+0)*(mGridNum.y)) + (iy+1);
int loc2 = ((ix+1)*(mGridNum.y)) + (iy+0);
int loc3 = ((ix+1)*(mGridNum.y)) + (iy+1);
Vec2f p[4][4];
p[0][0] = deform(mCtrlPoints[loc0].base+Vec2f(0, 0)) + mCtrlPoints[loc0].mag;
p[0][1] = deform(mCtrlPoints[loc0].base+Vec2f(0, hy)) + mCtrlPoints[loc0].mag;
p[0][2] = deform(mCtrlPoints[loc1].base+Vec2f(0, -hy)) + mCtrlPoints[loc1].mag;
p[0][3] = deform(mCtrlPoints[loc1].base+Vec2f(0, 0)) + mCtrlPoints[loc1].mag;
p[1][0] = deform(mCtrlPoints[loc0].base+Vec2f(hx, 0)) + mCtrlPoints[loc0].mag;
p[1][1] = deform(mCtrlPoints[loc0].base+Vec2f(hx, hy)) + mCtrlPoints[loc0].mag;
p[1][2] = deform(mCtrlPoints[loc1].base+Vec2f(hx, -hy)) + mCtrlPoints[loc1].mag;
p[1][3] = deform(mCtrlPoints[loc1].base+Vec2f(hx, 0)) + mCtrlPoints[loc1].mag;
p[2][0] = deform(mCtrlPoints[loc2].base+Vec2f(-hx, 0)) + mCtrlPoints[loc2].mag;
p[2][1] = deform(mCtrlPoints[loc2].base+Vec2f(-hx, hy)) + mCtrlPoints[loc2].mag;
p[2][2] = deform(mCtrlPoints[loc3].base+Vec2f(-hx, -hy)) + mCtrlPoints[loc3].mag;
p[2][3] = deform(mCtrlPoints[loc3].base+Vec2f(-hx, 0)) + mCtrlPoints[loc3].mag;
p[3][0] = deform(mCtrlPoints[loc2].base+Vec2f(0, 0)) + mCtrlPoints[loc2].mag;
p[3][1] = deform(mCtrlPoints[loc2].base+Vec2f(0, hy)) + mCtrlPoints[loc2].mag;
p[3][2] = deform(mCtrlPoints[loc3].base+Vec2f(0, -hy)) + mCtrlPoints[loc3].mag;
p[3][3] = deform(mCtrlPoints[loc3].base+Vec2f(0, 0)) + mCtrlPoints[loc3].mag;
mCtrlPoints[loc0].pos = p[0][0];
mCtrlPoints[loc1].pos = p[0][3];
mCtrlPoints[loc2].pos = p[3][0];
mCtrlPoints[loc3].pos = p[3][3];
float v = (float)iv/(float)(span-1);
float u = (float)iu/(float)(span-1);
Vec2f r[4];
r[0] = bezierNrm(p[0], v);
r[1] = bezierNrm(p[1], v);
r[2] = bezierNrm(p[2], v);
r[3] = bezierNrm(p[3], v);
Vec2f fp = bezierNrm(r, u);
if (mode == 0) { // create
mMesh.appendVertex(Vec3f(fp.x, fp.y, 0));
mMesh.appendTexCoord(Vec2f(fp.x, fp.y));
} else { // update
mMesh.getVertices()[k] = Vec3f(fp.x, fp.y, 0);
}
k++;
}
}
}
}
if (mode == 0) { // create
int nx = ((mGridNum.x-1)*span) - (mGridNum.x-2);
int ny = ((mGridNum.y-1)*span) - (mGridNum.y-2);
int id = 0;
for (int ix = 0; ix < nx-1; ++ix) {
for (int iy = 0; iy < ny-1; ++iy) {
int id0 = id;
int id1 = id+1;
int id2 = id1+ny;
int id3 = id2-1;
mMesh.appendTriangle(id0, id1, id2);
mMesh.appendTriangle(id0, id2, id3);
++id;
}
++id;
}
}
}
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");
}
