feat: add assignment 3 files

data/shaders/vertex.glsl

@@ -0,0 +1,9 @@
+uniform mat4 mvp;
+attribute vec3 vpos;
+attribute vec3 vcolor;
+varying vec3 fcolor;
+
+void main() {
+	gl_Position = mvp * vec4(vpos, 1);
+	fcolor = vcolor;
+}