the edge of the image is not smooth

[nixx]

I made my logo image using Corel Draw, and had it converted into BMP. This is my image in JPG.



But when I load it to my application, it lost its smoothness. Please take a look at this picture below.



I use the BMP version of this image. Even the JPG has better image.
What happened to the image? What I should I do t make it better?
I have no trouble running Irrlicht tutorial application, as well as softwares using Irrlicht.

I use this code

Code: Select all

nixxLogo = gameManager->getIrrlichtDevice()->getVideoDriver()->getTexture("resources/images/nixx.bmp");
gameManager->getIrrlichtDevice()->getVideoDriver()->makeColorKeyTexture(nixxLogo, core::position2d<s32>(0,0));

........

intro->getGameManager()->getIrrlichtDevice()->getVideoDriver()->draw2DImage(nixxLogo,
		pos,
		core::rect<s32> (0,0,400,143),
		0,
		video::SColor(255,255,255,255),
		true
		);

pos is a vector3df, nixxLogo is an ITexture.

Thanks, I'll appreciate the help.

ps: Never mind the production house, there is no such a company

[Dances]

Is the image size a power of 2? It needs to be to be clear.

[nixx]

mmm, no. It's 400 x 143.
Is it necessary to have the size of the power of 2? hmm, I think it's just for image that will be used as mesh texture. Or not?

[Virion]

yes, it's necessary to have a size of power of two.

[nixx]

OK, I will change all of my textures to the power of 2 size.
Thank you very much, I really appreciate it