dynamic slash mesh test

readme.md

@@ -1,4 +1,3 @@
-- [lynx r1 resource](https://github.com/technobaboo/stereokit_lynx_dotnet_template)
 - [fb passthrough resource](https://www.aesiio.com/blog/passthrough-dot-net-core)
 - [fb passthrough tool source](https://github.com/StereoKit/StereoKit/blob/master/Examples/StereoKitTest/Tools/PassthroughFBExt.cs)
 
@@ -58,6 +57,14 @@ todo
     revolver
       flick reload
 
+  enemy design
+      dmg
+    spd def
+    3 single types *fodder
+    dmg, spd, def
+    3 double types *competent
+    dmg+spd, spd+def, def+dmg
+
 bug(s)
   ...
 

src/Arts.cs

@@ -13,8 +13,11 @@ static class Arts
     static Material mat_backface = new Material("backface.hlsl");
     static Material mat_justcolor = new Material("justcolor.hlsl");
 
+    static Material mat_slash = new Material("unlit.hlsl");
+
     public static Vec3 shake = new(0, 0, 0);
     // static Quat spin_ori = Quat.Identity;
+    public static Vec3 last_tip_pos = new(0, 0, 0);
 
     static TextStyle text_style;
 
@@ -40,27 +43,47 @@ static class Arts
         mat_backface.DepthWrite = false;
 
         mat_both.Chain = mat_backface;
+
+        mat_slash.FaceCull = Cull.None;
     }
 
     public static void Frame()
     {
-        bool vr = Device.DisplayBlend == DisplayBlend.Opaque;
-        // render hands if not in mixed reality
-        Input.HandVisible(Handed.Max, false);
-        if (vr)
-        {
-            // background standin if no passthrough
-        }
+        // Input.HandVisible(Handed.Max, false);
+
+        // world
+        Matrix m4_world = Mono.world_pose.ToMatrix();
+        Hierarchy.Push(m4_world);
 
         meshes["Food"].Draw(
             mat_mono,
             Matrix.TRS(
-                Vec3.Zero,
+                V.XYZ(0, 0, -1),
                 Quat.Identity,
-                1.0f
+                0.1f
             )
         );
 
+        Mesh mesh = new();
+        Quat hand_rot = Quat.FromAngles(0, 0, SKMath.Sin(Time.Totalf * 6f) * 30f);
+        Vec3 hand_pos = V.XYZ(SKMath.Sin(Time.Totalf * 1f) * 0.1f, 0, 0);
+        Vec3 tip_pos = hand_pos + hand_rot * V.XYZ(0, 1, 0);
+        mesh.SetData(
+            new Vertex[] {
+                new(    hand_pos, V.XYZ(0,0,1)),
+                new(     tip_pos, V.XYZ(0,0,1)),
+                new(last_tip_pos, V.XYZ(0,0,1))
+            },
+            new uint[] {
+                0, 1, 2
+            }
+        );
+        mesh.Draw(
+            mat_slash,
+            Matrix.T(0, -1.0f, -1)
+        );
+        last_tip_pos = Vec3.Lerp(last_tip_pos, tip_pos, Time.Stepf / 0.1f);
+
         // particles
         Particle[] particles = VFX.particles;
         for (int i = 0; i < particles.Length; i++)
@@ -76,6 +99,9 @@ static class Arts
             );
         }
 
+        Hierarchy.Pop();
+
+
         // menu
         Matrix m4_menu = Mono.menu_pose.ToMatrix(Mono.menu_scale);
         Hierarchy.Push(m4_menu);

src/Mono.cs

@@ -9,6 +9,8 @@ static class Mono
 
     public static int score;
 
+    public static Pose world_pose;
+
     public static DeltaBool menu;
     public static Pose menu_pose;
     public static float menu_scale;
@@ -24,6 +26,7 @@ static class Mono
     public static void Init()
     {
         game_time = 0.0;
+        world_pose = new(0, 0, 0);
         menu = new(true);
         menu_pose = new(0, 0, 0);
         menu_scale = 1 * U.cm;