How does accuratetesting work ?

[vuduynguyen]

Hi All,

I have a room with floor and 4 walls and many object inside that room. I want to use MousePicking to test collision between the mouse and objects inside the room with "TV_TESTTYPE_ACCURATETESTING" parameter.

The collision result is always return floor and walls mesh rather than the object which the mouse picked. But if I turn of the floor and walls, it return the right object which the mouse picked. So I think that it seems that "TV_TESTTYPE_ACCURATETESTING" return the farthest object, is it right? Or I need to modify a parameter of Truevision Engine to get nearest object of collison. How can we do that ?

I read in the documentation that the "TV_TESTTYPE_ACCURATETESTING " uses ray-triangle collision. What is the ray-triangle collision ?

Thank you very much for your help.

Sincerely,
Brian