Irrlicht Engine

When i try to load .x to my program, there are error message "Only uncompressed x files currently supported".
My question, are there some code to uncompressed this file in Irrlicht???

What's usually that make the frame per second decrease ? Before this, i try to run my program, and the fps > 300 but know i run the program the fps just = 4, what should I check first to solve this problem?? int fps = driver->getFPS(); if (lastFPS != fps) { core::stringw str = L""; str += ...

when i run this code, the first xml data was replaced by the second xml data, and the second replaced by the third, how i can make the xml data that the previous data will not replace by the newest one??

thank you...

I get something trouble when I used this writer->writeElement(L"CharacterName",false, L"value", characterName); where characterName is variable that used to save text... core::stringw characterName = "Hai"; but when I use this writer->writeElement(L"CharacterName&q...

I have some data, the type is stringc. data3 = found2->getText(); const char *c_str3 = data3.c_str(); for example the type variable data3 is stringc, and there are 5 others the same type data, I want to write the value from the variabel using xml writer.. I already open the manual but i don't unders...

Sorry 4 bad english... I already make some 3d visualization , and to rendering the terrain i use class and constructor using IEventReceiver and in the same file i make user interface, and detect some button clicked. In the terrain function i use // create event receiver MyEventReceiver receiver(terr...

What do you mean with ICompassSceneNode, i could't find it...
Where i can found the tutorial and the library? I really new in this case...

while(device->run()) if (device->isWindowActive()) { driver->beginScene(true, true, 0 ); SMaterial m; m.Lighting = false; driver->setMaterial(m); driver->setTransform(video::ETS_WORLD, core::matrix4()); driver->draw3DLine(vector3df(0,0,0),vector3df(1,0,0),video::SColor(255,255,0,0)); driver->draw3D...

it's that true?? but i still can't see my line...

I still can't see the line... whereas i did your suggestion to write between while device run etc....

Would you like to give me the way to create the line per frame ? I dont know how to create that?

I've made a speedometer but the needle can't be seen??what am I supposed to do??Please help... Here's the my source code : video::IVideoDriver* driver = device->getVideoDriver(); gui::IGUIEnvironment* env = device->getGUIEnvironment(); driver-> draw2DLine (position2d <s32> (20, 20), position2d <s32>...

I already made the picture,,what should I do next??
How does I make it??
I don't have any idea how to make it...

Yups... i want to make speedometer... How can i create it??