Question

我有一个非常奇怪的错误，我首先渲染一些地形然后四边形以获得一些参考平面以防出现问题。

这是我最相关的代码：

@Override
protected void compilePrograms() {
    super.compilePrograms();
    programTerrain = new Program(
            new VertexShader("data/shaders/terrain.vs.glsl").compile(),
            new TessellationControlShader("data/shaders/terrain.tcs.glsl").compile(),
            new TessellationEvaluationShader("data/shaders/terrain.tes.glsl").compile(),
            new FragmentShader("data/shaders/terrain.fs.glsl").compile()
            ).compile();

    programQuad = new Program(
            new VertexShader("data/shaders/quad.vs.glsl").compile(),
            new FragmentShader("data/shaders/quad.fs.glsl").compile()
            ).compile();

    programsCompiled();        
}

@Override
protected void init() {
    super.init();

    float[] plane = new float[] {
        -400f, -5f, -400f,
        -400f, -5f, 400f,
        400f, -5f, 400f,
        400f, -5f, -400f
    };

    //temp
    FloatBuffer dataBuffer = BufferUtils.createFloatBuffer(16 * 16 * 16 * 3 + 4 * 3);
    dataBuffer.put(generateRandomTerrain(16, 16));
    dataBuffer.put(plane);
    dataBuffer.clear();

    buffer = new DynamicDrawArrayBuffer().create().bind().fillData(dataBuffer);
    vertexArray = new VertexArrayObject().create().bind();
    vertexArray.setAttribute(buffer, VS_POSITION, 3, GL_FLOAT, false, 0, 0);
    vertexArray.enableAttributes(VS_POSITION);

    modelMatrix.identity().translate(0f, 0f, 0f);       
    Uniforms.setUniformMatrix4(UNIFORM_MODEL_MATRIX, false, modelMatrix.writeToFloatBuffer(modelMatrixBuffer));

    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LEQUAL);

    glPatchParameteri(GL_PATCH_VERTICES, 16);
}

@Override
protected void render(final double msDelta) {
    super.render(msDelta);

    glClearColor(25f / 255f, 25f / 255f, 112f / 225f, 1.0f);
    glClearDepthf(1f);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    programTerrain.use();
    programTerrain.drawArrays(GL_PATCHES, 0, 16 * 16 * 16);

    programQuad.use();
    programQuad.drawArrays(GL_QUADS, 16 * 16 * 16, 4);
}

我在这里使用的所有内容都应该是直截了当的，因为对象只是围绕OpenGL的非常简单的包装器，Í请列出drawArrays以供进一步参考：

public Program drawArrays(final int mode, final int offset, final int count) {
    assertCompiled();
    assertUsing();
    GL11.glDrawArrays(mode, offset, count);
    return this;
}

我得到的错误如下：

Chosen display mode: 1920 x 1080 x 32 @60Hz
Started OpenGL with the following parameters:
Major version: 4
Minor version: 4
Forward compatible: true
Profile Core: true
jan 26, 2014 9:19:20 PM pkg3dgame.Controller start
SEVERE: null
org.lwjgl.opengl.OpenGLException: Invalid enum (1280)
    at org.lwjgl.opengl.Util.checkGLError(Util.java:59)
    at org.lwjgl.opengl.GL11.glDrawArrays(GL11.java:1205)
    at programs.Program.drawArrays(Program.java:87)
    at pkg3dgame.FPSGameController.render(FPSGameController.java:124)
    at pkg3dgame.Controller.renderImpl(Controller.java:208)
    at pkg3dgame.Controller.start(Controller.java:150)
    at pkg3dgame.FPSGameController.main(FPSGameController.java:210)

当我传入GL_TRIANGLES或GL_LINE_STRIP时，代码的工作非常奇怪，例如，我正在使用LWJGL以防有人想知道。

在调试模式下更新：Could not locate symbol glVertexWeighthNV，不确定它是什么意思。

OpenGL drawArrays GL_QUADS给出了无效的枚举（1280）

0 个答案: