Texture problem with texture larger 256

Graphics and GPU Programming Programming

Started by Eistoeter July 16, 2008 10:36 AM

3 comments, last by Eistoeter 15 years, 9 months ago

138

Author

July 16, 2008 10:36 AM

Hi there. I have a problem with texture mapping. I have just a 2d quad that i want to map a texture onto. Everything works fine if the texture is less then 512x512 pixels. So if I have a quad with a size of 256 x 256 pixels where I map a texture with 256 x 256 pixels everyhting is just fine. But if I have a quad with a size 512 x 512 pixels where I map a texture with 512 x 512 pixels the rendering is very unsharp. How can I fix this?

mrbastard

1,577

July 16, 2008 10:43 AM

are you using mipmapping?

[size="1"]

Eistoeter

138

Author

July 16, 2008 10:57 AM

No I do not.

MARS_999

1,627

July 16, 2008 12:03 PM

Use mipmapping. And adjust your filtering mode.

Eistoeter

138

Author

July 16, 2008 12:12 PM

Thanks for your replies. I managed to solve the problem. The problem was that I used the method ilutGLTexImage, because I use DevIL to load images.

It solved the problem to instead do this by hand with glTexImage2D