Irrlicht Engine

Task is simple: My viewport size is 640x480. I need to get an exact 2D screen coordinates of certain point in 3D, but projected onto 1280x960 viewport. Additional info: - Simply multiplying coordinates by 2 is not an answer - I need precise coordinates. - Making viewport any larger is not acceptable...

Ok, so now it's a question of right triangulation of irregular poly, dividing one poly into number of triangles. I believe that this is not a problem
Thank you folks, I'll try my best.

Trouble is, that this .obj is generated by my program. Irrlicht fails to import even simplier models, like 4-vertex poly shaped like an end of arrow. Is there a way to solve this using standart procedures of Irrlicht? Or shall I triangulate model (never done this stuff in programming) before writing...

I've uploaded image to imgur and edited first message. 1_test.obj looks like this:   v 1.24151432514 -9.8482503891 -1.21268820763 v 1.21961474419 -9.67453289032 2.21719646454 v -2.84848546982 -9.32577991486 2.21719646454 v -2.89963340759 -9.4932346344 -1.21268820763 v -1.41504085064 -9.82481765747 -...

Importing it with standart procedure: scene::ISceneNode * Import_1 = smgr->addMeshSceneNode(smgr->getMesh("d:\\1_test.obj")); Compare the results in viewport with original model: http://i.imgur.com/RzUz7yV.jpg I've highlighted edges with thick red lines. Wrong triangulation, definitely. An...

WORKS! Thanks a lot! I use only one mesh node, so I think there won`t be any issues with this anymore. Thanks again!

Importing .obj like so: scene::ISceneNode * Import_1 = smgr->addMeshSceneNode(smgr->getMesh("d:\\1_test.obj")); Another nodes in scene - camera and one light. Then i wrote another button that removes this mesh: Import_1->remove(); Works well so far. Viewport showing that scene is empty (I ...