0
votes
0answers
42 views

Error loading PCX image in FreeImage library

I'm using FreeImage in C++ for loading texuture from the PCX image. My FreeImage code is as following: FREE_IMAGE_FORMAT fif = FIF_UNKNOWN; //pointer to the image data BYTE* bits(0); fif = ...
0
votes
0answers
79 views

PNG file loading error in ImageMagick

I'm trying to understand the tutorial 16 at http://ogldev.atspace.co.uk, which requires the image processing library ImageMagick. But when I run the tutorial, I encountered an following error: ...
0
votes
1answer
105 views

Is there a need to set the parameters again when updating a texture?

Suppose that I'm developing the class COpenGLControl here in code guru to use it for showing a 2D texture in an MFC CPictureControl. and after applying some filters on the image, I will update the ...
8
votes
3answers
333 views

Why is it possible to encounter a texture coordinate greater than 1 or less than 0

I'm studying a text about texture mapping and in the preparing to draw session, I read: Define the texture wrapping parameters. This will control what happens when a texture coordinate greater than ...
4
votes
1answer
213 views

How do I draw a zoomable image in OpenGL?

Up to now I have used glDrawPixels but since my image is a large geotiff one, I'm getting some horrible results for example: this is the code used for zoom extent: void ...
2
votes
2answers
274 views

there is a BLOB standard to store images in memory?

I would like to abstract all the images in memory, to do so i would like to have just 1 format of reference without talking about the usual file formats for the filesystem like JPG, TGA, and so on. I ...
0
votes
1answer
6k views

DevIL image library isn't loading my image

This is the first time I've had this problem, my code just won't load the images I need it to. Here is my first function for loading the image into data: void ...