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git-svn-id: svn://db.shs.com.ru/libs@629 a8b55f48-bf90-11e4-a774-851b48703e85

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Пелипенко Иван
2019-11-24 18:49:53 +00:00
parent dbdda8ea3d
commit 6c8da692e2
14 changed files with 403 additions and 30 deletions
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46
qglengine/glprimitives.cpp
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@@ -263,6 +263,52 @@ Mesh * Primitive::arrow(int segments, float thick, float angle) {
}
Mesh * Primitive::torus(int segments_main, int segments_second, float radius_main, float radius_second) {
Mesh * ret = new Mesh();
QVector<QVector3D> & v(ret->vertices ());
QVector<QVector3D> & n(ret->normals ());
QVector<QVector2D> & t(ret->texcoords());
QVector< Vector3i> & ind(ret->indicesTriangles());
QVector<QVector3D> cv, cn;
QVector<QVector2D> ct;
segments_second = qMax(segments_second + 1, 4);
for (int i = 0; i < segments_second; i++) {
double x = (double)i / (segments_second - 1);
double a = x * M_2PI;
cv << QVector3D(radius_second * cos(a), 0., radius_second * sin(a));
cn << cv.back().normalized();
ct << QVector2D(0., x);
cv.back() += QVector3D(radius_main, 0., 0.);
}
segments_main = qMax(segments_main + 1, 4);
int ccnt = cv.size(), pcnt = 0;
for (int i = 0; i < segments_main; i++) {
double x = (double)i / (segments_main - 1);
QMatrix4x4 rm;
rm.rotate(x * 360., 0., 0., 1.);
for (int j = 0; j < ccnt; j++) {
ct[j].setX(x);
v << rm.map(cv[j]);
n << rm.map(cn[j]);
}
t.append(ct);
if (i > 0) {
for (int j = 0; j < ccnt - 1; j++) {
ind << Vector3i(pcnt + j, pcnt + j + 1, pcnt + j - ccnt);
ind << Vector3i(pcnt + j + 1, pcnt + j + 1 - ccnt, pcnt + j - ccnt);
}
}
pcnt = v.size();
}
return ret;
}
Mesh * Primitive::cubeFrame(float width, float length, float height) {
Mesh * ret = new Mesh(GL_LINES);
QVector3D scale(width, length, height);