glDrawArrays访问冲突 [英] glDrawArrays Access Violation

问题描述

我正在尝试遵循[this] [1]简单教程，但是到达"glDrawArrays"时出现以下错误:

I am trying to follow [this][1] simple tutorial, but I am getting the following error upon reaching 'glDrawArrays':

openGLTest.exe中0x03D7598E(nvoglv32.dll)处未处理的异常:0xC0000005:访问冲突读取位置0x00000000.

Unhandled exception at 0x03D7598E (nvoglv32.dll) in openGLTest.exe: 0xC0000005: Access violation reading location 0x00000000.

void createMesh(void) {
    float* vertices = new float[18];// Amount of vertices

    vertices[0] = -0.5; vertices[1] = -0.5; vertices[2] = 0.0; // Bottom left corner
    vertices[3] = -0.5; vertices[4] = 0.5; vertices[5] = 0.0; // Top left corner
    vertices[6] = 0.5; vertices[7] = 0.5; vertices[8] = 0.0; // Top Right corner

    vertices[9] = 0.5; vertices[10] = -0.5; vertices[11] = 0.0; // Bottom right corner
    vertices[12] = -0.5; vertices[13] = -0.5; vertices[14] = 0.0; // Bottom left corner
    vertices[15] = 0.5; vertices[16] = 0.5; vertices[17] = 0.0; // Top Right corner

    glGenVertexArrays(1, &vaoID[0]); // Create our Vertex Array Object
    glBindVertexArray(vaoID[0]); // Bind our Vertex Array Object so we can use it

    glGenBuffers(1, vboID); // Generate our Vertex Buffer Object
    glBindBuffer(GL_ARRAY_BUFFER, vboID[0]); // Bind our Vertex Buffer Object
    glBufferData(GL_ARRAY_BUFFER, 18 * sizeof(GLfloat), vertices, GL_STATIC_DRAW); // Set the size and data of our VBO and set it to STATIC_DRAW

    glVertexAttribPointer((GLuint)0, 3, GL_FLOAT, GL_FALSE, 0, 0); // Set up our vertex attributes pointer

    glEnableVertexAttribArray(0); // Disable our Vertex Array Object
    glBindVertexArray(0); // Disable our Vertex Buffer Object

    delete[] vertices; // Delete our vertices from memory

    glBindVertexArray(vaoID[0]); // Bind our Vertex Array Object

    glDrawArrays(GL_TRIANGLES, 0, 6); // Draw our square

    glBindVertexArray(0); // Unbind our Vertex Array Object 
}

由于本教程相同，我对导致它的原因不知所措！

I am at a loss as to what is causing it as the tutorial is the same!

推荐答案

经过大量实验，我通过将第一行更改为以下内容来解决了该问题:

After much experimentation I fixed this issue by changing the first line to:

float vertices[18];

并删除:

delete[] vertices;

这篇关于glDrawArrays访问冲突的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！