在opengl中无法调试着色器

Question

我正在尝试抽象OpenGL着色器，但着色器编译失败，即使它是教程着色器。主要问题是，当我运行它时，着色器编译失败，它在控制台中弹出任意文本，而不是一些可以帮助我修复错误的错误消息。

这是我的Shader.h

#include "glm/vec2.hpp"
#include "glm/vec3.hpp"
#include "glm/vec4.hpp"
#include "glm/gtc/type_ptr.hpp"
#include <iostream>
class Shader
{
public:
Shader(std::string vert, std::string frag);
void setInt(const char* uniformName, int data);
void set2Int(const char* uniformName, glm::ivec2 data);
void set3Int(const char* uniformName, glm::ivec3 data);
void set4Int(const char* uniformName, glm::ivec4 data);
void setFloat(const char* uniformName, float data);
void set2Float(const char* uniformName, glm::vec2 data);
void set3Float(const char* uniformName, glm::vec3 data);
void set4Float(const char* uniformName, glm::vec4 data);
void setMat3x3(const char* uniformName, glm::mat3 data);
void setMat4x4(const char* uniformName, glm::mat4 data);
void Bind();
void UnBind();
~Shader();
private:
unsigned int makeShader(unsigned int type, std::string data);
unsigned int id;
};

这是我的Shader.cpp

#include "Shader.h"
#include "glew/glew.h"
Shader::Shader(std::string vert, std::string frag)
{
unsigned int vertexShader = makeShader(GL_VERTEX_SHADER, vert);
unsigned int fragmentShader = makeShader(GL_FRAGMENT_SHADER, frag);
id = glCreateProgram();
glAttachShader(id, vertexShader);
glAttachShader(id, fragmentShader);
glLinkProgram(id);
glValidateProgram(id);
glDeleteShader(vertexShader);
glDeleteShader(fragmentShader);
}
void Shader::setInt(const char* uniformName, int data)
{
int loc = glGetUniformLocation(id, uniformName);
glUniform1iv(loc, 1, &data);
}
void Shader::set2Int(const char* uniformName, glm::ivec2 data)
{
int loc = glGetUniformLocation(id, uniformName);
glUniform1iv(loc, 2, glm::value_ptr(data));
}
void Shader::set3Int(const char* uniformName, glm::ivec3 data)
{
int loc = glGetUniformLocation(id, uniformName);
glUniform1iv(loc, 3, glm::value_ptr(data));
}
void Shader::set4Int(const char* uniformName, glm::ivec4 data)
{
int loc = glGetUniformLocation(id, uniformName);
glUniform1iv(loc, 4, glm::value_ptr(data));
}
void Shader::setFloat(const char* uniformName, float data)
{
int loc = glGetUniformLocation(id, uniformName);
glUniform1fv(loc, 1, &data);
}
void Shader::set2Float(const char* uniformName, glm::vec2 data)
{
int loc = glGetUniformLocation(id, uniformName);
glUniform1fv(loc, 2, glm::value_ptr(data));
}
void Shader::set3Float(const char* uniformName, glm::vec3 data)
{
int loc = glGetUniformLocation(id, uniformName);
glUniform1fv(loc, 3, glm::value_ptr(data));
}
void Shader::set4Float(const char* uniformName, glm::vec4 data)
{
int loc = glGetUniformLocation(id, uniformName);
glUniform1fv(loc, 4, glm::value_ptr(data));
}
void Shader::setMat3x3(const char* uniformName, glm::mat3 data)
{
int loc = glGetUniformLocation(id, uniformName);
glUniformMatrix3fv(loc, 1, GL_FALSE, glm::value_ptr(data));
}
void Shader::setMat4x4(const char* uniformName, glm::mat4 data)
{
int loc = glGetUniformLocation(id, uniformName);
glUniformMatrix4fv(loc, 1, GL_FALSE, glm::value_ptr(data));
}
void Shader::Bind()
{
glUseProgram(id);
}
void Shader::UnBind()
{
glUseProgram(0);
}
Shader::~Shader()
{
glDeleteProgram(id);
}
unsigned int Shader::makeShader(unsigned int type, std::string data)
{
unsigned int shaderId = glCreateShader(type);
const char* src = data.c_str();
glShaderSource(shaderId, 1, &src, nullptr);
glCompileShader(shaderId);
int didCompiled = 0;
glGetProgramiv(shaderId, GL_COMPILE_STATUS, &didCompiled);
if (didCompiled == GL_FALSE) {
int length = 0;
glGetShaderiv(id, GL_INFO_LOG_LENGTH, &length);
char* message = (char*)alloca(sizeof(char) * length);
glGetShaderInfoLog(shaderId, length, &length, message);
std::cout << (type == GL_VERTEX_SHADER ? "Vertex Shader" : "Fragment Shader") <<  " Compilation Failed: " << message << std::endl;
glDeleteShader(shaderId);
shaderId = 0;
}
return shaderId;
}

这是我的Vertex Shader 代码

#version 330 core
layout (location=0) in vec2 aPos;
void main()
{
gl_Position = vec4(aPos.x, aPos.y, 1.0f, 1.0f);
}

这是我的Fragment Shader 代码

#version 330 core
out vec4 FragColor;
uniform vec4 uColor;
void main()
{
FragColor = uColor;
} 

我抽象事物的方式有问题吗？或者是着色器代码本身

Answer 1

在makeShader函数中：glGetShaderiv(id, GL_INFO_LOG_LENGTH, &length);

将id更改为shaderId。

修复它并尝试获得正确的失败消息。