Problem in Array of Quads

OpenGL Development
#1

So i was trying to create an array of textured quads with lwjgl and i got this:

http://s30.postimg.org/ljzytu4c1/duvida.png

can anyone help me?

#2

Can you post the relevant code?

#3

I will post the Block Class:

package net.eternalaiden.world;

import java.io.FileNotFoundException;
import java.io.IOException;

import static org.lwjgl.opengl.GL11.*;

import org.newdawn.slick.opengl.Texture;
import org.newdawn.slick.opengl.TextureLoader;
import org.newdawn.slick.util.ResourceLoader;

public class Block{

	private float x, y;
	public BlockID id = BlockID.AR;
	private Texture texture = null;
	
	public Block(BlockID id, float x, float y) {
		this.x = x;
		this.y = y;
		this.id = id;
		try {
			this.texture = TextureLoader.getTexture("PNG", ResourceLoader.getResourceAsStream(id.location));
			System.out.println("Texture loaded: "+texture);
			System.out.println(">> Image width: "+texture.getImageWidth());
			System.out.println(">> Image height: "+texture.getImageHeight());
			System.out.println(">> Texture width: "+texture.getTextureWidth());
			System.out.println(">> Texture height: "+texture.getTextureHeight());
			System.out.println(">> Texture ID: "+texture.getTextureID());
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	public void render(){
		texture.bind();
		glPushMatrix();
		glTranslatef(x, y, 0);
		glBegin(GL_QUADS);
			glTexCoord2f(0,0);
			glVertex2d(0,0);
			glTexCoord2f(1,0);
			glVertex2d(BlockID.b_size, 0);
			glTexCoord2f(1,1);
			glVertex2d(BlockID.b_size, BlockID.b_size);
			glTexCoord2f(0,1);
			glVertex2d(0, BlockID.b_size);
		glEnd();
		glPopMatrix();
	}

}
#4

Try switching your texture coords to use texture.getWidth(), and texture.getHeight().

public void render(){
      texture.bind();
      glPushMatrix();
      glTranslatef(x, y, 0);
      glBegin(GL_QUADS);
         glTexCoord2f(0,0);
         glVertex2d(0,0);
         glTexCoord2f(texture.getWidth(),0);
         glVertex2d(BlockID.b_size, 0);
         glTexCoord2f(texture.getWidth(),texture.getHeight());
         glVertex2d(BlockID.b_size, BlockID.b_size);
         glTexCoord2f(0,texture.getHeight());
         glVertex2d(0, BlockID.b_size);
      glEnd();
      glPopMatrix();
   }
#5

Thank you very much! it works now :smiley:

#6

So now i got another problem… here is the pic:

http://s12.postimg.org/pehb8jyzh/duvida.png

Its a problem with the texture? :frowning:

#7

It appears like it would be. Double check the bottom of your texture and make sure that it isn’t transparent.

#8

It is not transparent :wink:

#9

I believe thats texture filtering, basically its because your texture is a low resolution, and scaled up, made to look really ugly.

Try this:

glEnable(GL_TEXTURE_2D);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
#10

I had tried that but it didn’t work :frowning:

#11

Are you sure, thats the main reason it wouldn’t be working. Just paste that in before you load your textures. Otherwise; google “LWJGL Blurry Textures”.

#12

Sorry men i put the code in wrong place… now it is working :smiley: