Loading Shaders from File
This is more of a basic C/C++ question. I'm using ifstream to read from a text file the shader program. glShaderSource needs that shader code in the form of GLchar **. Is there anyway to get a const char * array that is just large enough to hold all the lines in the code? Or is there some other way I'm not seeing?
That's basically what I'm doing and I'm passing shader.c_str(). However, the shader is failing to compile. One thing I don't understand though, if my shaders are failing to link and compile (and they obviously are since my triangles are not being colored blue), but I'm still getting two white triangles. I thought shaders were needed to do everything in the core profile?
fstream shaderFile( filePath, ios::in );
if ( shaderFile.is_open() )
buffer << shaderFile.rdbuf();
shader = buffer.str();
I've also checked my c_str, and it has all the shader code with newlines. Should I be inserting '\0' and setting the last parameter of glShaderSource to NULL instead?
// load and compile vertex shader
const char* text = getShaderProgram( shaderInfo.vShaderFile, shaderProgramText );
GLint length = shaderProgramText.size();
glShaderSource( GL_VERTEX_SHADER, 1, (const GLchar**)&text, (GLint*)&length );
glCompileShader( shaderObject );
I used glGetShaderiv and got:
Shader compilation failed...
(0) : error C0000: syntax error, unexpected $end at token "<EOF>"
What does this mean?