Question

抱歉我的语言（不是我的母语，我只是在学习）

Okey，我在演示游戏中遇到黑底问题当我为天空放置不同的纹理（我制作了“天空盒”）时，背景仍然是黑色

我意识到这是由于以下原因：

normalAttribute = glGetAttribLocationARB(program, "aNormal");
glEnableVertexAttribArrayARB(normalAttribute);

但是当我尝试删除她或更改glDisableVertexAttribArrayARB时-我得到以下信息：

enter image description here

如果不删除（但背景为黑色）

enter image description here

我的加载程序方法：

static int createShader(String resource, int type) throws IOException {
    int shader = glCreateShaderObjectARB(type);
    ByteBuffer source = ioResourceToByteBuffer(resource, 1024);
    PointerBuffer strings = BufferUtils.createPointerBuffer(1);
    IntBuffer lengths = BufferUtils.createIntBuffer(1);
    strings.put(0, source);
    lengths.put(0, source.remaining());
    glShaderSourceARB(shader, strings, lengths);
    glCompileShaderARB(shader);
    int compiled = glGetObjectParameteriARB(shader, GL_OBJECT_COMPILE_STATUS_ARB);
    String shaderLog = glGetInfoLogARB(shader);
    if (shaderLog.trim().length() > 0) {
        System.err.println(shaderLog);
    }
    if (compiled == 0) {
        throw new AssertionError("Could not compile shader");
    }
    return shader;
}

void createProgram() throws IOException {

    program = glCreateProgramObjectARB();
    int vertexShader = createShader("org/lwjgl/demo/opengl/assimp/magnet.vs",
            GL_VERTEX_SHADER_ARB);
    int fragmentShader = createShader("org/lwjgl/demo/opengl/assimp/magnet.fs",
            GL_FRAGMENT_SHADER_ARB);
    glAttachObjectARB(program, vertexShader);
    glAttachObjectARB(program, fragmentShader);
    glLinkProgramARB(program);
    int linkStatus = glGetObjectParameteriARB(program, GL_OBJECT_LINK_STATUS_ARB);
    String programLog = glGetInfoLogARB(program);
    if (programLog.trim().length() > 0) {
        System.err.println(programLog);
    }
    if (linkStatus == 0) {
        throw new AssertionError("Could not link program");
    }

    glUseProgramObjectARB(program);
    vertexAttribute = glGetAttribLocationARB(program, "aVertex");
    glEnableVertexAttribArrayARB(vertexAttribute);
    normalAttribute = glGetAttribLocationARB(program, "aNormal");
    glEnableVertexAttribArrayARB(normalAttribute);
    modelMatrixUniform = glGetUniformLocationARB(program, "uModelMatrix");
    viewProjectionMatrixUniform = glGetUniformLocationARB(program, "uViewProjectionMatrix");
    normalMatrixUniform = glGetUniformLocationARB(program, "uNormalMatrix");
    lightPositionUniform = glGetUniformLocationARB(program, "uLightPosition");
    viewPositionUniform = glGetUniformLocationARB(program, "uViewPosition");
    ambientColorUniform = glGetUniformLocationARB(program, "uAmbientColor");
    diffuseColorUniform = glGetUniformLocationARB(program, "uDiffuseColor");
    specularColorUniform = glGetUniformLocationARB(program, "uSpecularColor");
}

我使用它的代码（+使用SkyBox的代码）：

https://github.com/LWJGL/lwjgl3-demos/blob/master/src/org/lwjgl/demo/opengl/assimp/WavefrontObjDemo.java

对于那些不完全理解问题本质的人： 当我添加一个新程序（在本例中为天空盒）时，背景仍然为黑色。如果删除此行 glEnableVertexAttribArrayARB（normalAttribute），将出现天空，但模型的阴影将消失。

请，我寻求帮助，一个星期都找不到解决方案。

LWJGL 3 glEnableVertexAttribArray黑色是背景

0 个答案: