Tutorial 08 - Creating Simple OpenGL Shaders

In this tutorial I will be demonstrating how you can write opengl shaders and add them to our game engine.

[draynaruegames]

You don't have any links in the description.

[edilonjunior]

What is the purpose of the "result" in loadshader?

[Lordpm]

Just on the java side, don't you need to close your BufferedReader? It would be best to use the try-with-resources.

[thekatze]

Wouldn't it be better to use StringBuilder in the loadShader function?

[NOOBDP]

Well why is my ball black and the whole screen black afterwards :(

[Gy]

private Map<String, Integer> locationCache=new HashMap<>();
public int getUniform(String name)
{

return locationCache.get(name);
int newID=glGetUniformLocation(programID, name);
if(newID==-1)
System.out.println("uniform nem találhaató:"+name);
else
locationCache.put(name, newID);
return newID;
}
This way it would be faster?

[indigoturtle]

For some reason I'm having to use GL20.glShaderSource(), GL20.glCompileShader(), etc. And before anyone asks, yes I have imported org.lwjgl.opengl.GL20.*;