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diff --git a/dev/a6-harold/sky.cc b/dev/a6-harold/sky.cc
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--- a/dev/a6-harold/sky.cc
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-/** CSci-4611 Assignment 6: Harold
- */
-
-#include "sky.h"
-
-
-Sky::Sky() {
-    
-}
-
-
-Sky::~Sky() {
-    
-}
-
-void Sky::Init(ShaderProgram *stroke3d_shaderprog) {
-    stroke3d_shaderprog_ = stroke3d_shaderprog;
-}
-
-
-/// Projects a 2D normalized screen point (e.g., the mouse position in normalized
-/// device coordinates) to a 3D point on the "sky", which is really a huge sphere
-/// (radius = 1500) that the viewer is inside.  This function should always return
-/// true since any screen point can successfully be projected onto the sphere.
-/// sky_point is set to the resulting 3D point.  Note, this function only checks
-/// to see if the ray passing through the screen point intersects the sphere; it
-/// does not check to see if the ray hits the ground or anything else first.
-bool Sky::ScreenPtHitsSky(const Matrix4 &view_matrix, const Matrix4 &proj_matrix,
-                        const Point2 &normalized_screen_pt, Point3 *sky_point)
-{
-    // TODO: Stitch together your worksheet implementation of this method
-    return true;
-}
-
-
-
-
-/// Creates a new sky stroke mesh by projecting each vertex of the 2D mesh
-/// onto the sky dome and saving the result as a new 3D mesh.
-void Sky::AddSkyStroke(const Matrix4 &view_matrix, const Matrix4 &proj_matrix,
-                       const Mesh &stroke2d_mesh, const Color &stroke_color)
-{
-    // TODO: Create a new SkyStroke and add it to the strokes_ array.
-
-
-
-
-
-
-
-
-
-
-}
-
-
-/// Draws all of the sky strokes
-void Sky::Draw(const Matrix4 &view_matrix, const Matrix4 &proj_matrix) {
-
-    // Precompute matrices needed in the shader
-    Matrix4 model_matrix; // identity
-    Matrix4 modelview_matrix = view_matrix * model_matrix;
-    
-    // Draw sky meshes
-    stroke3d_shaderprog_->UseProgram();
-    stroke3d_shaderprog_->SetUniform("modelViewMatrix", modelview_matrix);
-    stroke3d_shaderprog_->SetUniform("projectionMatrix", proj_matrix);
-    for (int i=0; i<strokes_.size(); i++) {
-        stroke3d_shaderprog_->SetUniform("strokeColor", strokes_[i].color);
-        strokes_[i].mesh.Draw();
-    }
-    stroke3d_shaderprog_->StopProgram();
-}
-