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);
}
// dependent on a change in parameters, write new colors to the TriMesh
void GeoDeVisualizerApp::writeColors()
{
mTriangles.getColorsRGB().clear();
vector<Color> colors;
colors.reserve(mTriangles.getNumTriangles());
DisplayMode mode = (DisplayMode)mCurParams.displayMode;
switch(mode) {
case Geography:
{
colors = mWorld.mGeoColors;
break;
}
case Colonies:
{
colors = mWorld.mGeoColors;
// add sphere of influence and location
Colony& colRef = mWorld.mColonies[mCurParams.displayColony];
mCamVars.sceneRotation.set(getAverageVertex(colRef.mLocation), mCam.getEyePoint());
for (set<u32>::iterator soiIt = colRef.mSphereInfluence.begin(); soiIt != colRef.mSphereInfluence.end(); ++soiIt) {
colors[*soiIt] = Color(0.2, 0.2, 0.2);
}
colors[colRef.mLocation] = Color(1.0, 0.0, 0.0);
break;
}
case Resources:
{
vector<u32> activeResIdxs;
for (u32 i = 0; i < mCurParams.numResources; i++) {
if (mCurParams.showResources[i]) {
activeResIdxs.push_back(i);
}
}
if (activeResIdxs.size() > 0) {
colors.insert(colors.begin(), mTriangles.getNumTriangles(), Color(0.0, 0.0, 0.0));
} else {
colors.insert(colors.begin(), mTriangles.getNumTriangles(), Color(0.2, 0.2, 0.2));
break;
}
float numIndices = activeResIdxs.size();
for(vector<u32>::iterator idxIt = activeResIdxs.begin(); idxIt != activeResIdxs.end(); ++idxIt) {
vector<f32>& activeResVals = (mWorld.resources())[*idxIt].mVals;
vector<Color>::iterator colIt = colors.begin();
for (vector<f32>::iterator valIt = activeResVals.begin(); valIt != activeResVals.end(); ++valIt) {
*colIt += (resourceColors[*idxIt] * (*valIt)) / numIndices;
colIt++;
}
}
break;
}
case Attributes:
{
colors.insert(colors.begin(), mTriangles.getNumTriangles(), Color(0.0, 0.0, 0.0));
vector<u32> activeAttrIdxs;
for (u32 i = 0; i < NUM_ATTRIBUTES; i++) {
if (mCurParams.showAttributes[i]) {
activeAttrIdxs.push_back(i);
}
}
if (activeAttrIdxs.size() == 0) {
colors.clear();
colors.insert(colors.begin(), mTriangles.getNumTriangles(), Color(0.1, 0.1, 0.1));
break;
}
map<string, Color> attrMap;
attrMap["wetness"] = Color(0.0, 0.0, 1.0);
attrMap["temperature"] = Color(1.0, 0.0, 0.0);
attrMap["elevation"] = Color(0.0, 1.0, 0);
// iterate through all active indices
for(vector<u32>::iterator idxIt = activeAttrIdxs.begin(); idxIt != activeAttrIdxs.end(); ++idxIt) {
Color colorVal = attrMap[mWorld.mAttributes[*idxIt].mName];
vector<Color>::iterator faceColorIt = colors.begin();
// iterate through all attribute values
for (vector<f32>::iterator attrIt = mWorld.mAttributes[*idxIt].mVals.begin(); attrIt != mWorld.mAttributes[*idxIt].mVals.end(); ++attrIt) {
*faceColorIt += (colorVal * (*attrIt));
faceColorIt++;
}
}
break;
}
}
// triple the colors vector so that triangles show up as solid triangles
for (vector<Color>::iterator colIt = colors.begin(); colIt != colors.end(); ++colIt) {
mTriangles.appendColorRgb(*colIt);
mTriangles.appendColorRgb(*colIt);
mTriangles.appendColorRgb(*colIt);
}
mFrame = mTriangles;
mFrame.getColorsRGB().clear();
vector<Color> frameColors(colors.size()*3, Color(0.1, 0.1, 0.1));
mFrame.appendColorsRgb(frameColors.data(), frameColors.size());
}
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());
}
