stretch cursor idle loop

Assets/hand.hlsl

@@ -0,0 +1,45 @@
+#include "stereokit.hlsli"
+
+//--name = dofdev/hand
+//--color:color = 1, 1, 1, 1
+//--tex_scale   = 1
+//--diffuse     = white
+
+float4       color;
+float        tex_scale;
+Texture2D    diffuse   : register(t0);
+SamplerState diffuse_s : register(s0);
+
+struct vsIn {
+	float4 pos  : SV_Position;
+	float3 norm : NORMAL0;
+	float2 uv   : TEXCOORD0;
+	float4 col  : COLOR0;
+};
+struct psIn {
+	float4 pos   : SV_POSITION;
+	float2 uv    : TEXCOORD0;
+	float4 color : COLOR0;
+	uint view_id : SV_RenderTargetArrayIndex;
+};
+
+psIn vs(vsIn input, uint id : SV_InstanceID) {
+	psIn o;
+	o.view_id = id % sk_view_count;
+	id        = id / sk_view_count;
+
+	float3 world = mul(float4(input.pos.xyz, 1), sk_inst[id].world).xyz;
+	o.pos        = mul(float4(world,         1), sk_viewproj[o.view_id]);
+
+	float3 normal = normalize(mul(input.norm, (float3x3)sk_inst[id].world));
+
+	o.uv    = input.uv * tex_scale;
+	float3 norm_color = float3(0.5) + (normal * 0.5);
+	float3 norm_shade = float3(0.5) + (norm_color * 0.5);
+	o.color = float4(norm_shade, 1) * input.col; // input.col * color * sk_inst[id].color;
+	return o;
+}
+float4 ps(psIn input) : SV_TARGET {
+	float4 col = diffuse.Sample(diffuse_s, input.uv);
+	return input.color * col * float4(1, 1, 1, 0.1333);
+}

readme.md

@@ -52,11 +52,11 @@ todo
   featuring:
     [x] stretch_cursor
     [x] color_cube
-    [ ] reach_cursor
-    [ ] orbital_view // same dis/mount system as snake in a box
-    [ ] fullstick
     [ ] twist_cursor
+    [ ] reach_cursor
     [ ] cubic_flow
+    [ ] fullstick
+    [ ] orbital_view // same dis/mount system as snake in a box
 
 bug(s)
   ...

src/Arts.cs

@@ -8,6 +8,7 @@ static class Arts
     static Model assets_model = Model.FromFile("meshes/assets.glb", Shader.Unlit);
     static Dictionary<string, Mesh> meshes = new();
     static Material mat_mono = new Material("mono.hlsl");
+    static Material mat_hand = Default.MaterialHand;
     static Material mat_unlit = new Material("unlit.hlsl");
     static Material mat_both = new Material("unlit.hlsl");
     static Material mat_backface = new Material("backface.hlsl");
@@ -43,13 +44,15 @@ static class Arts
 
         // draw ontop of everything
         mat_colorcursor.DepthTest = DepthTest.Always;
+
+        mat_hand.Shader = Shader.FromFile("hand.hlsl");
     }
 
     public static void Frame()
     {
-        if (SK.GetStepper<PassthroughFBExt>().Enabled) {
-            Input.HandVisible(Handed.Max, false);
-        }
+        // if (SK.GetStepper<PassthroughFBExt>().Enabled) {
+        //     Input.HandVisible(Handed.Max, false);
+        // }
 
         // world
         // Matrix m4_dof = Mono.dof_pose.ToMatrix(Mono.dof_scl);
@@ -76,26 +79,45 @@ static class Arts
 
         // stretch_cursor
         {
-            float flip_x = Stretch.to_grab.Held && Stretch.to_grab.held_by.handed == Handed.Left ? -1 : 1;
             meshes["con"].Draw(
                 mat_mono,
-                Stretch.to_grab.pose.ToMatrix(V.XYZ(flip_x, 1, 1) * 1.5f * U.cm)
+                Stretch.to_grab.pose.ToMatrix(1.5f * U.cm)
             );
-            flip_x = Stretch.from_grab.Held && Stretch.from_grab.held_by.handed == Handed.Left ? -1 : 1;
             meshes["con"].Draw(
                 mat_mono,
-                Stretch.from_grab.pose.ToMatrix(V.XYZ(flip_x, 1, 1) * 1.5f * U.cm)
+                Stretch.from_grab.pose.ToMatrix(1.5f * U.cm)
             );
 
             Mesh.Cube.Draw(
-                mat_mono,
-                Stretch.cursor.ToMatrix(3 * U.cm)
+                mat_justcolor,
+                Stretch.cursor.ToMatrix(V.XYZ(-1, 1, 1) * 1.2f * U.cm),
+                Color.Hex(0x000000FF).ToLinear()
             );
+            Mesh.Cube.Draw(
+                mat_mono,
+                Stretch.cursor.ToMatrix(1 * U.cm)
+            );
+
+            // particles
+            Particle[] particles = Stretch.particles;
+            for (int i = 0; i < particles.Length; i++)
+            {
+                Particle particle = particles[i];
+                Mesh.Sphere.Draw(
+                    mat_unlit,
+                    Matrix.TRS(
+                        particle.pos,
+                        particle.ori,
+                        particle.scl
+                    ),
+                    Color.Hex(0xFFFFFFFF).ToLinear()
+                );
+            }
         }
 
         // color_cube
         {
-            meshes["color_cube"].Draw(
+            meshes[ColorCube.toggle ? "color_cube_toggle" : "color_cube"].Draw(
                 mat_colorcube,
                 ColorCube.grab.pose.ToMatrix(ColorCube.scl)
             );
@@ -121,6 +143,11 @@ static class Arts
             Hierarchy.Pop();
         }
 
+        // reach_cursor
+        {
+
+        }
+
         // Hierarchy.Pop();
 
 
@@ -141,23 +168,23 @@ static class Arts
         // }
 
         // menu
-        Matrix m4_menu = Mono.menu_pose.ToMatrix(Mono.menu_scale);
-        Hierarchy.Push(m4_menu);
+        // Matrix m4_menu = Mono.menu_pose.ToMatrix(Mono.menu_scale);
+        // Hierarchy.Push(m4_menu);
 
-        // score
-        char[] score_txt = Mono.score.ToString("000").ToCharArray();
-        for (int i = 0; i < score_txt.Length; i++)
-        {
-            Text.Add(
-                score_txt[i].ToString(),
-                Matrix.TS(
-                    V.XYZ(0, 0, 0),
-                    48
-                ),
-                text_style
-            );
-        }
+        // // score
+        // char[] score_txt = Mono.score.ToString("000").ToCharArray();
+        // for (int i = 0; i < score_txt.Length; i++)
+        // {
+        //     Text.Add(
+        //         score_txt[i].ToString(),
+        //         Matrix.TS(
+        //             V.XYZ(0, 0, 0),
+        //             48
+        //         ),
+        //         text_style
+        //     );
+        // }
 
-        Hierarchy.Pop();
+        // Hierarchy.Pop();
     }
 }

src/Data.cs

@@ -13,7 +13,7 @@ public class Grab
     public Pose pose;
     private Vec3 pos_offset;
     private Quat ori_offset;
-    public Hand? held_by;
+    public Controller? held_by;
     private bool snap_to_hand = false;
 
     public Grab(float x, float y, float z, bool snap_to_hand = false)
@@ -25,16 +25,16 @@ public class Grab
         this.snap_to_hand = snap_to_hand;
     }
 
-    public bool OnGrab(ref Hand hand, ref Grab grab_ref)
+    public bool OnGrab(ref Controller con, ref Grab grab_ref)
     {
         if (!Held) // Allow only one hand at a time to grab
         {
-            if (Vec3.Distance(hand.palm.position, pose.position) < 0.1f)
+            if (Vec3.Distance(con.pose.position, pose.position) < 0.14f)
             {
-                held_by = hand;
+                held_by = con;
                 grab_ref = this;
-                pos_offset = hand.palm.orientation.Inverse * (hand.palm.position - pose.position);
-                ori_offset = hand.palm.orientation.Inverse * pose.orientation;
+                pos_offset = con.pose.orientation.Inverse * (con.pose.position - pose.position);
+                ori_offset = con.pose.orientation.Inverse * pose.orientation;
                 return true;
             }
         }
@@ -54,13 +54,13 @@ public class Grab
         {
             if (snap_to_hand)
             {
-                pose.orientation = held_by.palm.orientation;
-                pose.position = held_by.palm.position;
+                pose.orientation = held_by.pose.orientation;
+                pose.position = held_by.pose.position;
             }
             else
             {
-                pose.orientation = held_by.palm.orientation * ori_offset;
-                pose.position = held_by.palm.position - held_by.palm.orientation * pos_offset;
+                pose.orientation = held_by.pose.orientation * ori_offset;
+                pose.position = held_by.pose.position - held_by.pose.orientation * pos_offset;
             }
         }
     }

src/Dofs.cs

@@ -12,23 +12,66 @@ static class Stretch
     public static float stretch = 0.0f;
     public static Pose cursor;
 
+    // vfx
+    public static Particle[] particles = new Particle[64];
+    static int index = 0;
+    static float trail_dist = 3 * U.cm;
+    static Vec3 last_particle_pos = Vec3.Zero;
+
     public static void Init()
     {
-        to_grab = new(-0.3f, 0, 0, true);
-        from_grab = new(-0.3f, 0, 0.1f, true);
+        to_grab = new(-0.3f, -0.25f, -0.5f, true);
+        from_grab = new(-0.3f, -0.25f, -0.4f, true);
+
+        for (int i = 0; i < particles.Length; i++)
+        {
+            particles[i] = new();
+        }
     }
 
     public static void Frame()
     {
+        if (!from_grab.Held && !to_grab.Held)
+        {
+            from_grab.pose.orientation = Quat.Identity;
+            to_grab.pose.orientation = Quat.Identity;
+            from_grab.pose.position = to_grab.pose.position - Vec3.Forward * ((15 * U.cm) - (MathF.Sin(Time.Totalf * 3f) * 4 * U.cm));
+        }
+
         Vec3 delta = to_grab.pose.position - from_grab.pose.position;
         stretch = Maths.max(delta.Magnitude - deadzone, 0);
 
-        Vec3 dir = delta.Normalized;
+        Vec3 dir = toggle ? delta.Normalized : to_grab.pose.orientation * Vec3.Forward;
+        cursor.orientation = from_grab.pose.orientation;
         cursor.position = to_grab.pose.position + dir * stretch * strength;
+
+        if (Vec3.Distance(cursor.position, last_particle_pos) > trail_dist)
+        {
+            index = (index + 1) % particles.Length;
+            Particle particle = particles[index];
+            particle.pos = last_particle_pos + Vec3.Direction(cursor.position, last_particle_pos) * trail_dist;
+            // particle.vel = Quat.FromAngles(Random.Shared.NextSingle() * 360, 0, 0) * Quat.FromAngles(0, Random.Shared.NextSingle() * 360, 0) * Vec3.Forward * 6.0f;
+            particle.ori = Quat.Identity;
+            particle.scl = 3 * U.mm;
+
+            last_particle_pos = particle.pos;
+        }
+
+        for (int i = 0; i < particles.Length; i++)
+        {
+            Particle particle = particles[i];
+            if (particle.vel.MagnitudeSq > float.Epsilon)
+            {
+                // particle.pos += particle.vel * Time.Stepf;
+                // particle.vel *= 1 - (3 * Time.Stepf);
+            }
+            particle.scl *= 1.0f - (3 * Time.Stepf);
+        }
     }
 
     // design
-    static float deadzone = 0.1f;
+    public static bool toggle = true;
+    static float deadzone = 0.06f;
     static float strength = 3;
 }
 
@@ -43,7 +86,7 @@ static class ColorCube
 
     public static void Init()
     {
-        grab = new(0, 0, 0);
+        grab = new(0, -0.25f, -0.5f);
     }
 
     public static void Frame()
@@ -75,5 +118,8 @@ static class ColorCube
 
         return x / 12.92f;
     }
+
+    // design
+    public static bool toggle = true;
 }
 

src/Mono.cs

@@ -39,6 +39,8 @@ static class Mono
         ColorCube.Init();
     }
 
+    public static Pose windowPoseButton = new Pose(0, -0.4f, -0.4f, Quat.FromAngles(45, 180, 0));
+
     public static void Frame()
     {
         if (Rig.btn_back.delta == +1)
@@ -58,6 +60,13 @@ static class Mono
             }
         }
 
+        UI.WindowBegin("test toggles", ref windowPoseButton);
+        if (UI.Button(ColorCube.toggle ? "color frame" : "color face"))
+            ColorCube.toggle = !ColorCube.toggle;
+        if (UI.Button(Stretch.toggle ? "con dir" : "stretch dir"))
+            Stretch.toggle = !Stretch.toggle;
+        UI.WindowEnd();
+
         // flatscreen dev controls
         if (Device.Name == "Simulator")
         {
@@ -111,7 +120,7 @@ static class Mono
                 {
                     if (Rig.btn_l_grip.delta == +1)
                     {
-                        grab.OnGrab(ref Rig.l_hnd, ref Rig.l_held);
+                        grab.OnGrab(ref Rig.l_con, ref Rig.l_held);
                     }
                 }
             }
@@ -132,7 +141,7 @@ static class Mono
                 {
                     if (Rig.btn_r_grip.delta == +1)
                     {
-                        grab.OnGrab(ref Rig.r_hnd, ref Rig.r_held);
+                        grab.OnGrab(ref Rig.r_con, ref Rig.r_held);
                     }
                 }
             }

src/Rig.cs

@@ -6,8 +6,8 @@ static class Rig
 {
     public static Pose head = Pose.Identity;
 
-    public static Hand l_hnd;
-    public static Hand r_hnd;
+    public static Hand l_hnd, r_hnd;
+    public static Controller l_con, r_con;
 
     public static DeltaBool btn_select = new(false);
     public static DeltaBool btn_l_grip = new(false);
@@ -17,8 +17,6 @@ static class Rig
     public static Grab? l_held = null;
     public static Grab? r_held = null;
 
-    public static Pose l_hld, l_aim, r_hld, r_aim;
-
     public static Vec3 fullstick = Vec3.Up;
     public static Pose r_con_stick = Pose.Identity;
 
@@ -26,7 +24,8 @@ static class Rig
 
     public static void Init()
     {
-
+        l_con = new();
+        r_con = new();
     }
 
     public static void Frame()
@@ -62,21 +61,16 @@ static class Rig
         // [!] hand input simulates controller...
 
         l_hnd = Input.Hand(Handed.Left);
-        Controller l_con = Input.Controller(Handed.Left);
-        // l_hld = l_con.pose;
-        l_hld = l_hnd.palm;
-        // l_aim = l_con.aim;
+        l_con = Input.Controller(Handed.Left);
 
         r_hnd = Input.Hand(Handed.Right);
-        Controller r_con = Input.Controller(Handed.Right);
-        // r_hld = r_con.pose;
-        r_hld = r_hnd.palm;
-        // r_aim = r_con.aim;
-
+        r_con = Input.Controller(Handed.Right);
 
         btn_l_grip.Step(l_con.grip > 0.5f || l_hnd.IsGripped);
         btn_r_grip.Step(r_con.grip > 0.5f || r_hnd.IsGripped);
 
+        // double grip?
+
         btn_select.Step(r_con.x1.IsActive() || r_con.trigger > 0.5f);
         btn_back.Step(r_con.x2.IsActive());