Easy way to load a texture in LWJGL?

OpenGL Development
#1

Okay, so now that devIL isn’t supported anymore it seems I’m expected create my own texture loader (I didn’t have to do this in JOGL!), so I was wondering if there was a easier way to load a texture (.png). Thanks in advance.

#2

Fmod and Devil were both removed for LWJGL2+, the recommended replacement is a library called slick-util (note different from slick2d). You should be able to load various texture and sound formats with it.

you can get it from http://slick.cokeandcode.com/downloads/util/ and the javadoc is located at http://slick.cokeandcode.com/javadoc-util/

Its pretty easy to use, just download the package and have a look at the examples included in the source code on how to use it.

#3

int textureID = TextureLoader.getTexture(".PNG",this.getClass().getClassLoader().getResourceAsStream(“image.png”),true).getTextureID();

#4

Thank you very much. I’m now using Slick :slight_smile:
Problem when I use textures though :frowning:

 texture.bind();
        
        GL11.glBegin(GL11.GL_QUADS);
        // Front Face
	        GL11.glTexCoord2f(0.0f, 0.0f);
	        GL11.glVertex3f(-1.0f, -1.0f, 1.0f); // Bottom Left Of The Texture and Quad
	        GL11.glTexCoord2f(1.0f, 0.0f);
	        GL11.glVertex3f(1.0f, -1.0f, 1.0f); // Bottom Right Of The Texture and Quad
	        GL11.glTexCoord2f(1.0f, 1.0f);
	        GL11.glVertex3f(1.0f, 1.0f, 1.0f); // Top Right Of The Texture and Quad
	        GL11.glTexCoord2f(0.0f, 1.0f);
	        GL11.glVertex3f(-1.0f, 1.0f, 1.0f); // Top Left Of The Texture and Quad
        GL11.glEnd();
#5

that’s a non power of two texture i think.

#6

So I’m trying to get a tech demo out of Ultra GL as a JWS App, and for some reason the TextureLoader from Slick-Util doesn’t want to see my .png from inside the jar file. Here’s the code.


try {
			texture = TextureLoader.getTexture("PNG", new FileInputStream("data/wall.png"));
		} catch (IOException e) {
			e.printStackTrace();
#7

You need to do:


texture = TextureLoader.getTexture("PNG", this.getClass().getClassLoader().getResource("data/wall.png").openStream());

This should work, or be very close to something that works. You need to use getResource() to easily fetch resources that are inside jars.

#8

Actually, for (old, bugged versions of?) Java WebStart you need to do:

Thread.currentThread().getContextClassLoader().getResourceAsStream("abc/def/Ghi.jkl");

This works everywhere.

#9

If you are using Slick, you can use:


texture = TextureLoader.getTexture("PNG", ResourceLoader.getResource("data/wall.png"));

This will find it both in the classpath and on the filesystem.