How can I make OpenGL textures scale without becoming blurry?
- by adorablepuppy
I'm using OpenGL through LWJGL.
I have a 16x16 textured quad rendering at 16x16. When I change it's scale amount, the quad grows, then becomes blurrier as it gets larger.
How can I make it scale without becoming blurry, like in Minecraft.
Here is the code inside my RenderableEntity object:
public void render(){
Color.white.bind();
this.spriteSheet.bind();
GL11.glBegin(GL11.GL_QUADS);
GL11.glTexCoord2f(0,0);
GL11.glVertex2f(this.x, this.y);
GL11.glTexCoord2f(1,0);
GL11.glVertex2f(getDrawingWidth(), this.y);
GL11.glTexCoord2f(1,1);
GL11.glVertex2f(getDrawingWidth(), getDrawingHeight());
GL11.glTexCoord2f(0,1);
GL11.glVertex2f(this.x, getDrawingHeight());
GL11.glEnd();
}
And here is code from my initGL method in my game class
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glClearColor(0.46f,0.46f,0.90f,1.0f);
GL11.glViewport(0,0,width,height);
GL11.glOrtho(0,width,height,0,1,-1);
And here is the code that does the actual drawing
public void start(){
initGL(800,600);
init();
while(true){
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
for(int i=0;i<entities.size();i++){
((RenderableEntity)entities.get(i)).render();
}
Display.update();
Display.sync(100);
if(Display.isCloseRequested()){
Display.destroy();
System.exit(0);
}
}
}
