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POLWJGL texture does not render
 

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    <p>I've been trying to write a game engine in lwjgl and I've come across an issue with rendering and I'd like a bit of help. Basically, I've followed some steps in the lwjgl-basics (mattdesl on GitHub) and produced a Texture class and a section in my renderer that work except that they don't render a texture. Here's the code...</p> <pre><code>public void drawTexturedRectangle(float x1, float y1, float w, float h, Texture t){ t.bind(); GL11.glColor4f(1.0f, 0, 1.0f, 1.0f); GL11.glBegin(GL11.GL_QUADS); GL11.glTexCoord2f(0, 0); GL11.glVertex2f(x1, y1); GL11.glTexCoord2f(1.0f, 0); GL11.glVertex2f(x1 + w, y1); GL11.glTexCoord2f(1.0f, 1.0f); GL11.glVertex2f(x1 + w, y1 + h); GL11.glTexCoord2f(0, 1.0f); GL11.glVertex2f(x1, y1 + h); GL11.glEnd(); } </code></pre> <p>That's where it renders. Here's the Texture class:</p> <pre><code>package com.nightfall.morningside; import java.io.*; import java.net.URL; import java.nio.ByteBuffer; import de.matthiasmann.twl.utils.*; import org.lwjgl.opengl.*; import org.lwjgl.opengl.GL12.*; import org.lwjgl.BufferUtils; public class Texture { public int width; public int height; public int id; public Texture(URL pathToTexture){ try { InputStream pngstream = pathToTexture.openStream(); PNGDecoder pngdecoder = new PNGDecoder(pngstream); width = pngdecoder.getWidth(); height = pngdecoder.getHeight(); int bpp = 4; ByteBuffer buffer = BufferUtils.createByteBuffer(bpp * width * height); pngdecoder.decode(buffer, width * bpp, PNGDecoder.Format.RGBA); buffer.flip(); id = GL11.glGenTextures(); GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_S, GL12.GL_CLAMP_TO_EDGE); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T, GL12.GL_CLAMP_TO_EDGE); GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, width, height, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, buffer); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public void bind(){ GL11.glBindTexture(GL11.GL_TEXTURE_2D, id); } } </code></pre> <p>The TexturedRectangle class:</p> <pre><code>package com.nightfall.morningside.geometry; import com.nightfall.morningside.Texture; import com.nightfall.morningside.Textured; public class TexturedRectangle extends Rectangle implements Textured{ public Texture texture; public TexturedRectangle(float xone, float yone, float w, float h, Texture t) { super(xone, yone, w, h); texture = t; } public Texture getTexture() { return texture; } } </code></pre> <p>The Rectangle class:</p> <pre><code>package com.nightfall.morningside.geometry; public class Rectangle { private float x1; private float y1; private float width; private float height; public Rectangle(float xone, float yone, float w, float h){ x1 = xone; y1 = yone; width = w; height = h; } public float getX1(){ return x1; } public float getY1(){ return y1; } public float getHeight(){ return height; } public float getWidth(){ return width; } public Point getLocation(){ return new Point(x1, y1); } } </code></pre> <p>And the Textured interface:</p> <pre><code>package com.nightfall.morningside; public interface Textured { public Texture getTexture(); } </code></pre> <p>And the Point class:</p> <pre><code>package com.nightfall.morningside.geometry; public class Point { private float x1; private float y1; public Point(float x, float y){ x1 = x; y1 = y; } public float getX(){ return x1; } public float getY(){ return y1; } } </code></pre> <p>I hope this is everything. I believe it's an issue in the way I'm rendering but maybe there's an issue in where I load textures. If you need anything else, I'll put it up for you. Thanks.</p>
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    1. COOh, and just to clarify, it's with lwjgl 2.90
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    2. COIf you're making an engine, then don't use all the deprecated OpenGL methods.
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    3. COI'm only doing it to learn - I'll replace everything as soon as I am sure I can actually do it at all.
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