我有一個問題,似乎將紋理綁定到一個形狀。當我這樣做時,我會得到正確尺寸的白色形狀,其顏色由Color.white.bind()
給出。紋理不綁定在OpenGL(LWJGL/Slick-util)
GraphicsManager.java
package com.jackwilsdon.spectrun;
import java.io.IOException;
import org.lwjgl.LWJGLException;
import org.lwjgl.opengl.Display;
import org.lwjgl.opengl.DisplayMode;
import org.lwjgl.opengl.GL11;
import org.lwjgl.util.vector.Vector2f;
import org.newdawn.slick.Color;
import org.newdawn.slick.opengl.Texture;
import org.newdawn.slick.opengl.TextureLoader;
import org.newdawn.slick.util.ResourceLoader;
public class GraphicsManager {
final static int WIDTH = 800;
final static int HEIGHT = 600;
private static Texture cloudTexture = null;
public static void initDisplay() throws LWJGLException
{
Display.setDisplayMode(new DisplayMode(WIDTH, HEIGHT));
Display.create();
}
public static void initOpenGL()
{
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glLoadIdentity();
GL11.glOrtho(0, WIDTH, 0, HEIGHT, 1, -1);
GL11.glMatrixMode(GL11.GL_MODELVIEW);
}
public static void loadTextures()
{
Texture currentObject = null;
try {
currentObject = TextureLoader.getTexture("PNG", ResourceLoader.getResourceAsStream("./resources/cloud.png"));
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("Texture loaded: "+currentObject);
System.out.println(">> Image width: "+currentObject.getImageWidth());
System.out.println(">> Image height: "+currentObject.getImageHeight());
System.out.println(">> Texture width: "+currentObject.getTextureWidth());
System.out.println(">> Texture height: "+currentObject.getTextureHeight());
System.out.println(">> Texture ID: "+currentObject.getTextureID());
cloudTexture = currentObject;
}
public static void DrawRectangle(int x, int y, int width, int height)
{
GL11.glBegin(GL11.GL_QUADS);
GL11.glVertex2f(x,y);
GL11.glVertex2f(x+width,y);
GL11.glVertex2f(x+width,y+height);
GL11.glVertex2f(x,y+height);
GL11.glEnd();
}
public static void DrawRectangle(int x, int y, int width, int height, int red, int green, int blue)
{
GL11.glColor3ub((byte)red, (byte)green, (byte)blue);
DrawRectangle(x, y, width, height);
}
public static Vector2f DrawCloud(int x, int y)
{
cloudTexture.bind();
int width = cloudTexture.getImageWidth();
int height = cloudTexture.getImageHeight();
GL11.glBegin(GL11.GL_QUADS);
GL11.glVertex2f(x,y);
GL11.glVertex2f(x+width,y);
GL11.glVertex2f(x+width,y+height);
GL11.glVertex2f(x,y+height);
GL11.glEnd();
return new Vector2f(cloudTexture.getImageWidth(), cloudTexture.getImageHeight());
}
}
我懷疑它是與我的initOpenGL()
方法,如我已經看過(http://ninjacave.com/slickutil1)爲例,他們有很大的不同。只需將它們複製到我的屏幕就會產生意想不到的結果(黑屏)。從我的initOpenGL()
方法是缺少的東西?
編輯:loadTextures()
方法輸出正確的圖像尺寸,但紋理的尺寸不同,這是什麼意思?
編輯2:PNG不是問題,我試過2個人找到相同的結果。
修復我的代碼後,通過設置紋理座標,出現了一個新問題。 我現在得到一個奇怪的效果,像這樣; i.imgur.com/5lr79.png。圖像不再是全尺寸,並在其左下方有一個黑色框。
GraphicsManager.java
package com.jackwilsdon.spectrun;
import java.io.IOException;
import org.lwjgl.LWJGLException;
import org.lwjgl.opengl.Display;
import org.lwjgl.opengl.DisplayMode;
import org.lwjgl.opengl.GL11;
import org.lwjgl.util.vector.Vector2f;
import org.newdawn.slick.Color;
import org.newdawn.slick.opengl.Texture;
import org.newdawn.slick.opengl.TextureLoader;
import org.newdawn.slick.util.ResourceLoader;
public class GraphicsManager {
final static int WIDTH = 800;
final static int HEIGHT = 600;
private static Texture cloudTexture = null;
public static void initDisplay() throws LWJGLException
{
Display.setDisplayMode(new DisplayMode(WIDTH, HEIGHT));
Display.create();
}
public static void initOpenGL()
{
GL11.glEnable(GL11.GL_TEXTURE);
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glLoadIdentity();
GL11.glOrtho(0, WIDTH, 0, HEIGHT, 1, -1);
GL11.glMatrixMode(GL11.GL_MODELVIEW);
}
public static void loadTextures()
{
Texture currentObject = null;
try {
currentObject = TextureLoader.getTexture("PNG", ResourceLoader.getResourceAsStream("./resources/cloud.png"));
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("Texture loaded: "+currentObject);
System.out.println(">> Image width: "+currentObject.getImageWidth());
System.out.println(">> Image height: "+currentObject.getImageHeight());
System.out.println(">> Texture width: "+currentObject.getTextureWidth());
System.out.println(">> Texture height: "+currentObject.getTextureHeight());
System.out.println(">> Texture ID: "+currentObject.getTextureID());
cloudTexture = currentObject;
}
public static void DrawRectangle(int x, int y, int width, int height)
{
GL11.glBegin(GL11.GL_QUADS);
GL11.glVertex2f(x,y);
GL11.glVertex2f(x+width,y);
GL11.glVertex2f(x+width,y+height);
GL11.glVertex2f(x,y+height);
GL11.glEnd();
}
public static void DrawRectangle(int x, int y, int width, int height, int red, int green, int blue)
{
GL11.glColor3ub((byte)red, (byte)green, (byte)blue);
DrawRectangle(x, y, width, height);
}
public static Vector2f DrawCloud(int x, int y)
{
cloudTexture.bind();
int width = cloudTexture.getImageWidth();
int height = cloudTexture.getImageHeight();
GL11.glBegin(GL11.GL_QUADS);
GL11.glTexCoord2f(1,1);
GL11.glVertex2f(x,y);
GL11.glTexCoord2f(0,1);
GL11.glVertex2f(x+width,y);
GL11.glTexCoord2f(0,0);
GL11.glVertex2f(x+width,y+height);
GL11.glTexCoord2f(1,0);
GL11.glVertex2f(x,y+height);
GL11.glEnd();
return new Vector2f(cloudTexture.getImageWidth(), cloudTexture.getImageHeight());
}
}
設置紋理座標後,我現在得到一個奇怪的效果,像這樣; http://i.imgur.com/5lr79.png。圖像不再是全尺寸,並在其左下方有一個黑色框。 –
@jackwilsdon:看起來像lwjgl將圖像重新調整爲2的冪。您最好使用軸上的2的冪的紋理,或者將max tex-coord設置爲(actualWidth/pow2Width),而不是1. – Goz