Irrlicht Engine

setPosition and manually setting to 0 both should work enough for this (as [15] should be 0 already). Your code kinda looks like what I'd expect to work. Except for having yaw and pitch separated. I'm not sure what that is doing and maybe it's messing up things. With euler rotations the order matter...

If you use svn trunk version of Irrlicht things are slightly easier. It has a function ISceneNode::setUpdateAbsolutePosBehavior which you can set to irr::scene::ESNUA_TRANSFORM_POSITION. Then child-nodes simply ignores the parent rotation and only updates the position based on parent. So child has i...

Sorry, not enough information. Check the pointers. Make sure the ID's are correct. Is that element really a IGUIEditBox? You can also see all that in the debugger, just set a breakpoint and step through (if you ware not familiar with a debugger yet, take the chance to learn it, it's simply to use an...

STL has some function in <string> like stoi or others in <cwchar> like wcstoll. Irrlicht has no tool function for wchar_t I think - so you'd have to convert to char first.

You can loop over children like: irr::core::list<IGUIElement*>& children = guiElement->getChildren(); for (irr::core::list<IGUIElement*>::Iterator it = children.begin(); it != Children.end(); ++it) { (*it)->setVisible(false); } Note that when you hide a parent element then all children are hidde...

I don't say it can't be done. I say you can't get it just from comparing 2 matrices. But you need the info about the path taken. It's the same in 2d - if you walk around in your city and I record 2 points in time where you have been I still won't be able to tell how fast you walked. Not unless I als...

Not sure if other nodes are patched that easily for that, terrain is somewhat special. For the general case it's probably easier to have application code which switches out the mesh (or node) at a certain distance. Also I noticed that with newer GPU's you can go really high with polygons before thos...

Not code I'm really familiar with. But on a quick check - getCurrentLODOfPatches returns indices to an array which is always square. So in theory setLODOfPatch could be used to set another LOD and the maximal patchX and patchZ you can set should be the sqrt(of the array size returned by getCurrentLO...

If you are lucky the format already creates a meshbuffer with tangents (I think .X format does, not sure about others). Then you have to ensure the normalmap is in texture 1 slot (slot 0 has diffuse). And materialType is EMT_NORMAL_MAP_SOLID, EMT_PARALLAX_MAP_SOLID, EMT_NORMAL_MAP_TRANSPARENT_VERTEX...

Ah yes, -O3 is with g++ compiler. Visual studio tends to automatically create 2 compile targets called "debug" and "release" for new c++ projects. And release has all the typical optimizations. In general people work with debug for development (because debugging is easier) and re...

Slight risk the compiler will optimize away your "complex operation" as the result isn't used. Better to have one result variable on top and maybe print out at the end or something so it can't be removed. If it's not removed I'd rather suspect it's not compiled with optimizations. Also not...

I wrote down some options for doing this in a recent post: viewtopic.php?t=53033
Hope that helps.

Works nicely. You could also use the irrlicht strings for this I guess (to avoid mixing Stl with Irrlicht). Thought I have to admit I also often mix those ;-)

relVel without parameters is initialized to 0. Transformation use multiplications so 0 stays 0. I do not know what you mean with relative velocity. Do we still talk about angular velocity? Or do you mean real velocity (ship speed) now? Try initializing relVel with your velocity then instead of 0. Al...

If getAngularVelocity is in radians you can use setRotationRadians in the Irrlicht matrix. Your guess wasn't correct in this case. You can kinda think of as those 3 rows in the inner 3x3 matrix as the directions of the x,y,z axes (so for example could be the front, up, right directions your ship has...