void VoxelTreeGenerator::generateSegments()
{
int width = mpTargetChunk->getWidth();
int height = mpTargetChunk->getWidth();
int depth = mpTargetChunk->getDepth();
vec3 startPoint = vec3(width / 2.0f, 0.0f, depth / 2.0f);
vec3 direction = glm::normalize(vec3(0.1f, 1.0f, 0.1f));
float length = height / 5.0f;
generateSegments(startPoint, direction, length, 0);
}
vector<Segment> generateCollection(vector<Trajectory> &trajs, double epsilon){
vector<Segment> ret;
int i = 0;
progress::begin();
for(Trajectory &t : trajs){
progress::step("building segs ", i, 1, trajs.size());
vector<Segment> segs = generateSegments(t, epsilon, i);
t.start_index = ret.size()-1;
t.fragments_size = segs.size();
ret.insert(ret.end(), segs.begin(), segs.end());
i++;
}
progress::done();
return ret;
}
void VoxelTreeGenerator::generateSegments(const vec3& startPoint, const vec3& direction, float length, int itCount)
{
if (itCount < 7)
{
LineSegment segment;
segment.start = startPoint;
segment.end = startPoint + direction * length;
mSegments.push_back(segment);
float nextLength = length / 1.2f;
vec3 xRotationVec = glm::normalize(glm::cross(direction, vec3(1.0f, 0.0f, 0.0f)));
vec3 yRotationVec = glm::normalize(glm::cross(direction, vec3(0.0f, 1.0f, 0.0f)));
vec3 zRotationVec = glm::normalize(glm::cross(direction, vec3(0.0f, 0.0f, 1.0f)));
mat4 identity = mat4(1.0f);
for (int i = 0; i < 6; i++)
{
vec3 newDirection = direction;
float randX = ((rand() / (float)RAND_MAX) - 0.5f) * 10.0f * (5 - itCount);
float randY = ((rand() / (float)RAND_MAX) - 0.5f) * 10.0f * (5 - itCount);
float randZ = ((rand() / (float)RAND_MAX) - 0.5f) * 10.0f * (5 - itCount);
mat4 rotationMatrix(1.0f);
rotationMatrix = glm::rotate(rotationMatrix, randX, xRotationVec);
rotationMatrix = glm::rotate(rotationMatrix, randY, yRotationVec);
rotationMatrix = glm::rotate(rotationMatrix, randZ, zRotationVec);
newDirection = (mat3)rotationMatrix * newDirection;
newDirection = glm::normalize(newDirection);
generateSegments(segment.end, newDirection, nextLength, itCount + 1);
}
}
}
FigL::FigL(){
generateSegments(123);
//angle
}
FigT::FigT(){
generateSegments(124);
}
FigStrip::FigStrip(){
generateSegments(379);
}
FigS::FigS(){
generateSegments(1234);
}
FigSquare::FigSquare( ){
generateSegments(134);
}
