Example/GLSL Shader Compile Error Testing

Shader compilation error checking.

GLuint shader = glCreateShader(...);

// Get strings for glShaderSource.
glShaderSource(shader, ...);

glCompileShader(shader);

GLint isCompiled;
glGetShaderiv(shader, GL_COMPILE_STATUS, &isCompiled);
if(isCompiled == GL_FALSE)
{
	GLint maxLength;
	glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &maxLength);

	// The maxLength includes the NULL character
	GLchar errorLog[maxLength];
	glGetShaderInfoLog(shader, maxLength, &maxLength, errorLog);

	// 'errorLog' now contains information that can e.g. be printed to stderr

	// Exit with failure.
	glDeleteShader(shader); // Don't leak the shader.
	return;
}

// Shader compilation is successful.