此问题现已修复。我的着色器属性没有正确绑定(bind)。

我有一个游戏，从 IDE 运行时看起来像这样:



但是，当我使用这些设置从 Eclipse 导出它时，



纹理完全不正确。纹理仍然加载，但它们没有正确包裹到对象上。



代码完全相同，因为我只是导出了它，而且我目前正在同时运行游戏的两个窗口(一个在 IDE 中运行良好，一个在导出的 JAR 中看起来很奇怪)。

我还将所有资源从 IDE 目录复制到带有外部 JAR 的文件夹中。 IDE目录:


我从以下位置运行外部 JAR 的目录:


另外，我知道纹理实际上正在加载 - 它们没有正确包装。我知道这是因为:

loader.loadTexture("PlaneTexture", 1);
//loadTexture() method:
public int loadTexture(String fileName, int mipmap) {
    Texture texture = null;
    try {
        try{
        texture = TextureLoader.getTexture("PNG", new FileInputStream("res/" + fileName + ".png")); //TextureLoader is a Slick-Util class.
        }catch (Exception e){
            e.printStackTrace();
        }
        if (texture == null){
            throw new Exception("Null texture!");
        }
        //texture = TextureLoader.getTexture("GIF", new FileInputStream("res/" + fileName + ".png"));
        if (mipmap > -10){
       GL30.glGenerateMipmap(GL11.GL_TEXTURE_2D);
       GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR_MIPMAP_LINEAR);
       GL11.glTexParameterf(GL11.GL_TEXTURE_2D, GL14.GL_TEXTURE_LOD_BIAS, mipmap);
        }
    } catch (Exception e) {
        e.printStackTrace();
        System.err.println("Tried to load texture " + fileName + ".png , didn't work");
        System.exit(1);
        return -1;


    }
    textures.add(texture.getTextureID());
    return texture.getTextureID();
}

Plane you = Main.TerrainDemo.shipsID.get(Main.TerrainDemo.UID);
    Main.TerrainDemo.shader.start();
    TexturedModel texturedModel = TerrainDemo.shipModel; //The plane model
    RawModel model = texturedModel.getRawModel();
    GL30.glBindVertexArray(model.getVaoID());
    GL20.glEnableVertexAttribArray(0);
    GL20.glEnableVertexAttribArray(1);
    GL20.glEnableVertexAttribArray(2);
    GL13.glActiveTexture(GL13.GL_TEXTURE0);
        GL11.glBindTexture(GL11.GL_TEXTURE_2D, TerrainDemo.shipModel.getTexture().getID()); //The ID of the texture.

    glDrawElements(GL_TRIANGLES, model.getVertexCount(), GL11.GL_UNSIGNED_INT, 0);

//Vertex shader
#version 130

in vec3 position;
in vec2 textureCoords;
in vec3 normal;

out vec2 pass_textureCoords;
out vec3 surfaceNormal;
out vec3 toLightVector;

uniform mat4 transformationMatrix;
uniform vec3 lightPosition;

void main(void){
gl_Position = ftransform();
pass_textureCoords = textureCoords;
surfaceNormal = (transformationMatrix * vec4(normal, 0.0)).xyz;
toLightVector = (vec3(500, 50000, 500)) - (transformationMatrix * vec4(position, 1.0)).xyz;
}

//Fragment shader
#version 130

in vec2 pass_textureCoords;
in vec3 surfaceNormal;
in vec3 toLightVector;

out vec4 out_Color;

uniform sampler2D textureSampler;

uniform vec3 lightColour;

void main(void){
vec3 unitNormal = normalize(surfaceNormal);
vec3 unitLightVector = normalize(toLightVector);

float nDot1 = dot(unitNormal, unitLightVector);
float brightness = max(nDot1, 0.2);
brightness = brightness + 0.5;
vec3 diffuse = brightness * vec3(1, 1, 1);

vec4 textureColor = vec4(diffuse, 1.0) * texture(textureSampler, pass_textureCoords);
if(textureColor.a<1){
    discard;
}
out_Color = vec4(textureColor.r, textureColor.g, textureColor.b, 1);

}

# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x1cd6b57f, pid=36828,  tid=35556
#
# JRE version: Java(TM) SE Runtime Environment (8.0_31-b13) (build 1.8.0_31-b13)
# Java VM: Java HotSpot(TM) Client VM (25.31-b07 mixed mode windows-x86 )
# Problematic frame:
# C  [atioglxx.dll+0xc0b57f]
#

Stack: [0x011d0000,0x01220000],  sp=0x0121f1e8,  free space=316k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C  [atioglxx.dll+0xc0b57f]
C  [atioglxx.dll+0xbe8b95]
C  [atioglxx.dll+0x641852]
C  [lwjgl.dll+0x9a28]
j  org.lwjgl.opengl.GL20.glUniformMatrix4(IZLjava/nio/FloatBuffer;)V+33
j  TMLoading.ShaderProgram.loadMatrix(ILorg/lwjgl/util/vector/Matrix4f;)V+23j
TMLoading.StaticShader.loadTransformationMatrix(Lorg/lwjgl/util/vector/Matrix4f;) V+6
j  Joehot200.Plane.render()V+407
j  Joehot200.TerrainDemo.render()V+4045
j  Joehot200.TerrainDemo.enterGameLoop()V+356
j  Joehot200.TerrainDemo.startGame()V+320
j  StartScreenExperiments.Test2.resartTDemo()V+128
j  StartScreenExperiments.Test2.main([Ljava/lang/String;)V+27
v  ~StubRoutines::call_stub
V  [jvm.dll+0x1473e5]

//Some unnecessary code has been removed. For example, you do not care about what colour I make the plane depending on what team it is on.    

//Plane class. (Referring to a jet plane which is the main object the player controls)
public void render(){
    twodcoords = TextDemo.getScreenCoords(sx, sy + 30, sz);
    glPushAttrib(GL_ENABLE_BIT);
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glPushMatrix();
    glTranslatef(sx, sy, sz);
    GL30.glBindVertexArray(Main.TerrainDemo.vaoID);

    glEnableClientState(GL_VERTEX_ARRAY);
    glEnableClientState(GL_NORMAL_ARRAY);
        glRotatef(srot, 0f, 1f, 0f);
        glRotatef(pitch, -1f, 0f, 0f);
    Main.TerrainDemo.shader.start();
    glPushMatrix();
    glDisable(GL_LIGHTING);
    TexturedModel texturedModel = TerrainDemo.shipModel;
    RawModel model = texturedModel.getRawModel();
    GL30.glBindVertexArray(model.getVaoID());
    GL20.glEnableVertexAttribArray(0);
    GL20.glEnableVertexAttribArray(1);
    GL20.glEnableVertexAttribArray(2);
    GL13.glActiveTexture(GL13.GL_TEXTURE0);
        GL11.glBindTexture(GL11.GL_TEXTURE_2D, TerrainDemo.shipModel.getTexture().getID());
    org.lwjgl.util.vector.Matrix4f m = Assist.createTransformationMatrix(new Vector3f(sx, sy, sz), new Vector3f(pitch, rot, roll), new Vector3f(5, 5, 5)); //Creates a transformation matrix based on the X, Y, Z, Pitch, yaw, roll, and scale of the plane.
    Main.TerrainDemo.shader.loadTransformationMatrix(m);
    glDrawElements(GL_TRIANGLES, model.getVertexCount(), GL11.GL_UNSIGNED_INT, 0);
    GL20.glDisableVertexAttribArray(0);
    GL20.glDisableVertexAttribArray(1);
    GL20.glDisableVertexAttribArray(2);
    GL30.glBindVertexArray(0);
    GL30.glBindVertexArray(0);
    glPopMatrix();
    glPopAttrib();
}
//StaticShader class. This method literally just passes it to the loadMatrix class.    
public void loadTransformationMatrix(Matrix4f matrix){
    super.loadMatrix(location_transformationMatrix, matrix);
}
//ShaderProgram class.
FloatBuffer buf = BufferUtils.createFloatBuffer(4 * 4);
public void loadMatrix(int location, Matrix4f matrix){
    matrix.store(buf);
    buf.flip();
    GL20.glUniformMatrix4(location, false, buf);
}

最佳答案

我无法对此进行测试，因此我不确定这是否会有所帮助，但是 OpenGL 的某些实现不会在 VAO 中保存元素缓冲区。所以尝试在调用 glDrawElements 之前绑定(bind)元素缓冲区，例如

glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, someBuffer);
glDrawElements(GL_TRIANGLES, model.getVertexCount(), GL11.GL_UNSIGNED_INT, 0);

关于java - 导出 Eclipse 项目会导致不正确的纹理和崩溃，，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32222716/