summaryrefslogtreecommitdiffstats
path: root/dev/a6-harold/sky.h
diff options
context:
space:
mode:
authorJessie Speert <speer034@umn.edu>2021-04-12 15:41:35 -0700
committerJessie Speert <speer034@umn.edu>2021-04-12 15:41:35 -0700
commitcce47f292f7327ab7f11eb277ab6f03dbf19b7f1 (patch)
tree8238f9564e0c3f89a7cb4dd3a13051f24fe6e3a9 /dev/a6-harold/sky.h
parentUploading Assignment 5 (and worksheet) (diff)
downloadcsci4611-cce47f292f7327ab7f11eb277ab6f03dbf19b7f1.tar
csci4611-cce47f292f7327ab7f11eb277ab6f03dbf19b7f1.tar.gz
csci4611-cce47f292f7327ab7f11eb277ab6f03dbf19b7f1.tar.bz2
csci4611-cce47f292f7327ab7f11eb277ab6f03dbf19b7f1.tar.lz
csci4611-cce47f292f7327ab7f11eb277ab6f03dbf19b7f1.tar.xz
csci4611-cce47f292f7327ab7f11eb277ab6f03dbf19b7f1.tar.zst
csci4611-cce47f292f7327ab7f11eb277ab6f03dbf19b7f1.zip
Added assignment 6 directory and worksheet
Diffstat (limited to '')
-rw-r--r--dev/a6-harold/sky.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/dev/a6-harold/sky.h b/dev/a6-harold/sky.h
new file mode 100644
index 0000000..06fcca1
--- /dev/null
+++ b/dev/a6-harold/sky.h
@@ -0,0 +1,52 @@
+/** CSci-4611 Assignment 6: Harold
+ */
+
+#ifndef SKY_H_
+#define SKY_H_
+
+#include <mingfx.h>
+using namespace mingfx;
+
+/** Creates, holds, and draws all of the strokes on the sky.
+ */
+class Sky {
+public:
+ Sky();
+ virtual ~Sky();
+
+ void Init(ShaderProgram *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 ScreenPtHitsSky(const Matrix4 &view_matrix, const Matrix4 &proj_matrix,
+ const Point2 &normalized_screen_pt, Point3 *sky_point);
+
+ /// 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 AddSkyStroke(const Matrix4 &view_matrix, const Matrix4 &proj_matrix,
+ const Mesh &stroke2d_mesh, const Color &stroke_color);
+
+ /// Draws all of the sky strokes
+ void Draw(const Matrix4 &view_matrix, const Matrix4 &proj_matrix);
+
+private:
+
+ // Each stroke has a 3D mesh and a color
+ struct SkyStroke {
+ Mesh mesh;
+ Color color;
+ };
+
+ // To store a new stroke to draw, add it to this array
+ std::vector<SkyStroke> strokes_;
+
+
+ ShaderProgram *stroke3d_shaderprog_;
+};
+
+#endif