Mike Vasiljevs

Looks like polys are triangulated. Check the Maximum Edges parameter of the PolySoup node (described in docs, haven't tried myself yet).

Is there a quick way to do an arc length evaluation of a position on the surface - similar to uniform texture coordinate construction (uniformTexture()?)?

At the moment I have to do a workaround by constructing a curve and then using unitLengthToUnitDomain(); for example getting a position using curve u(s) parameter:

float unit_u = curve->unitLengthToUnitDomain(unit_s);
surface->evaluate(unit_u * num_segments, v, pos);

I had a similar issue in the beginning. I would recommend checking the compiler flags and that the linked libraries are copied into the right locations (Dependency Walker helps if you are running Windows).

In particular check that you link against Release runtime (/MD for Visual C++ dll) even if you make a debug build.

EDIT: Also defines. I have the following defines, adjust the version accordingly:

“WIN32”,
“_USE_MATH_DEFINES”,
“_DLL”,
“BOOST_ALL_DYN_LINK”,
“VERSION=\”13.0.476\“”,
“NOMINMAX”,
“_USE_MATH_DEFINES”,
“_CRT_SECURE_NO_DEPRECATE”,
“_CRT_NONSTDC_NO_DEPRECATE”,
“_SCL_SECURE_NO_WARNINGS”,
“BOOST_ALL_NO_LIB”,
“MAKING_DSO”,