basic patterns for incenter

src_v2/editor/lumenarium_editor.c

@@ -241,13 +241,13 @@ ed_sculpture_updated(App_State* state, r32 scale, r32 led_size)
       
       r32 texel_x_min = (r32)pixel_x / (r32)pixels_dim;
       r32 texel_y_min = (r32)pixel_y / (r32)pixels_dim;
-      r32 texel_x_max = texel_x_min + texel_dim;
-      r32 texel_y_max = texel_y_min + texel_dim;
+      r32 texel_x_max = texel_x_min + (texel_dim / 2);
+      r32 texel_y_max = texel_y_min + (texel_dim / 2);
       
-      v2 t0 = (v2){texel_x_min, texel_y_min};
-      v2 t1 = (v2){texel_x_max, texel_y_min};
+      v2 t0 = (v2){texel_x_max, texel_y_max};
+      v2 t1 = (v2){texel_x_max, texel_y_max};
       v2 t2 = (v2){texel_x_max, texel_y_max};
-      v2 t3 = (v2){texel_x_min, texel_y_max};
+      v2 t3 = (v2){texel_x_max, texel_y_max};
 
       v3 p0 = HMM_AddVec3(c, (v3){ -r, -r, 0 });
       v3 p1 = HMM_AddVec3(c, (v3){  r, -r, 0 });
@@ -282,7 +282,16 @@ ed_sculpture_updated(App_State* state, r32 scale, r32 led_size)
   }
   
   u8* pixels = ed_leds_to_texture(state, &scratch, pixels_dim);
-  ed->sculpture_tex = texture_create(texture_desc_default(pixels_dim, pixels_dim), pixels);
+  Texture_Desc pixel_texture_desc = {
+    .w = pixels_dim,
+    .h = pixels_dim,
+    .s = pixels_dim,
+    .min_filter = GL_NEAREST,
+    .mag_filter = GL_NEAREST,
+    .fmt_internal = GL_RGBA,
+    .fmt_data = GL_RGBA
+  };
+  ed->sculpture_tex = texture_create(pixel_texture_desc, pixels);
 
   scratch_release(scratch);
   lumenarium_env_validate();

src_v2/editor/lumenarium_editor_sculpture_visualizer.c

@@ -85,11 +85,14 @@ ed_sculpture_visualizer(App_State* state)
 {
   Editor* ed = state->editor;
   
+#define SCULPTURE_VIZ_BLOOM 0
+#if SCULPTURE_VIZ_BLOOM
   glBindFramebuffer(GL_FRAMEBUFFER, fbo);
   os_gl_no_error();
   glClearColor(0, 0, 0, 1);
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
   glEnable(GL_DEPTH_TEST);
+#endif
 
   // Set the viewport to the current layout's region so that the sculpture
   // never overlaps any other ui elements
@@ -108,10 +111,11 @@ ed_sculpture_visualizer(App_State* state)
   
   // TODO(PS): TEMPORARY CAMERA CODE
   cam_theta += 0.01f;
-  r32 cam_r = 100;
-  v3 camera_pos = (v3){sinf(cam_theta) * cam_r, 25, cosf(cam_theta) * cam_r};
+  r32 cam_r = 50;
+  //v3 camera_pos = (v3){sinf(cam_theta) * cam_r, 25, cosf(cam_theta) * cam_r};
+  v3 camera_pos = (v3){ 0, -4.9, -cam_r };
   r32 aspect = view_dim.x / view_dim.y;
-  m44 proj = HMM_Perspective(45.0, aspect, 0.01f, 500);
+  m44 proj = HMM_Perspective(72.0, aspect, 0.01f, 500);
   m44 view = HMM_LookAt(camera_pos, (v3){0,0,0}, (v3){0,1,0});
   
   shader_bind(ed->sculpture_shd);
@@ -126,7 +130,9 @@ ed_sculpture_visualizer(App_State* state)
   geometry_drawi(ed->sculpture_geo, k, 0);
   
   // reset the viewport for all other rendering
+#if SCULPTURE_VIZ_BLOOM
   glBindFramebuffer(GL_FRAMEBUFFER, 0);
+
   v2 wds = HMM_MultiplyVec2(ed->window_dim, ed->content_scale);
   glViewport(0, 0, (s32)wds.x, (s32)wds.y);
 
@@ -141,4 +147,5 @@ ed_sculpture_visualizer(App_State* state)
   texture_bind(fbo_tex_c);
   geometry_bind(fs_quad);
   geometry_drawi(fs_quad, 6, 0);
+#endif // SCULPTURE_VIZ_BLOOM
 }

src_v2/engine/lumenarium_engine.c

@@ -22,6 +22,92 @@ en_frame_prepare(App_State* state)
 
 global r32 tt = 0;
 
+r32
+curve_ease_in_out(r32 t)
+{
+  r32 tc = clamp(0, t, 1);
+  r32 theta = (tc * r32_pi) - (r32_pi / 2.0f);
+  r32 s = sinf(theta);
+  r32 result = 0.5f + (s / 2.0f);
+  return result;
+}
+
+#define incenter_pos_to_unit(p) (v4){ ((p.x / 6.0f) + 0.5f), ((p.y / 6.0f) + 0.5f), ((p.z / 6.0f) + 0.5f), 1.0f }
+
+void 
+test_pattern(Assembly_Pixel_Buffer pixels)
+{
+  for (u32 j = 0; j < pixels.len; j++)
+  {
+    v4 p = pixels.positions[j];
+    pixels.pixels[j].r = (u8)(((sinf((5 * tt) + (p.x * 10)) + 1) * 0.5f) * 255);
+    pixels.pixels[j].b = (u8)(((sinf((5 * tt) + (p.z * 10)) + 1) * 0.5f) * 255);
+  }
+}
+
+void
+pattern_debug(Assembly_Pixel_Buffer pixels)
+{
+  r32 scale = 6;
+  r32 offset = 0;
+
+  for (u32 j = 0; j < pixels.len; j++)
+  {
+    v4 p = pixels.positions[j];
+    v4 pp = incenter_pos_to_unit(p);
+    pixels.pixels[j].r = pp.x * 255;
+    pixels.pixels[j].g = pp.y * 255;
+    pixels.pixels[j].b = pp.z * 255;
+  }
+}
+
+void
+grow_pattern_sphere_function(Assembly_Pixel_Buffer pixels, v4 center, r32 radius, r32 falloff)
+{
+  for (u32 j = 0; j < pixels.len; j++)
+  {
+    v4 p = incenter_pos_to_unit(pixels.positions[j]);
+    r32 d0 = HMM_LengthVec4(HMM_SubtractVec4(p, center));
+    r32 d1 = falloff - fabsf(d0 - radius);
+    r32 b = d1 / falloff;
+
+    v3 color = {
+      .x = 0.5f + 0.5f * sinf(p.x * r32_tau * 4.313f + tt * 0.53f),
+      .y = 0.5f + 0.5f * cosf(0.2314f + p.y * r32_tau * 3.915f + tt * 0.5f),
+      .z = 0.2f + 0.8f * p.z,
+    };
+    v3 color_b = HMM_MultiplyVec3f(color, b);
+
+    pixels.pixels[j].r = color_b.x * 255;
+    pixels.pixels[j].g = color_b.y * 255;
+    pixels.pixels[j].b = color_b.z * 255;
+  }
+}
+void 
+grow_pattern(Assembly_Pixel_Buffer pixels)
+{
+  v4 center = (v4){};
+  r32 radius = 0;
+  r32 falloff = 0;
+  //phase 1 - light up to center
+  if (tt < 8)
+  {
+    r32 height = -0.2f + curve_ease_in_out(tt / 6) * 0.5f;
+    center = (v4){ 0.5f, 0.2f + height, 0.5f, 1 };
+    radius = 0.1f;
+    falloff = 0.2f;
+  }
+  else if (tt >= 8)
+  {
+    r32 t = (tt - 8) / 5;
+    center = (v4){ 0.5f, 0.5f, 0.5f, 1 };
+    radius = 0.1f + curve_ease_in_out(t) * 0.27f;
+    falloff = 0.2 - (curve_ease_in_out(t) * 0.1f);
+  }
+
+  grow_pattern_sphere_function(pixels, center, radius, falloff);
+}
+
 internal void
 en_frame(App_State* state)
 {
@@ -34,18 +120,14 @@ en_frame(App_State* state)
   // Temp Pattern Simulation
   
   tt += 1.0f / 60.0f;
+  if (tt > 50) tt = 0;
   
   r32 hrange = 1;
   r32 range = hrange * 2;
   for (u32 i = 0; i < assemblies.len; i++)
   {
     Assembly_Pixel_Buffer pixels = assemblies.pixel_buffers[i];
-    for (u32 j = 0; j < pixels.len; j++)
-    {
-      v4 p = pixels.positions[j];
-      pixels.pixels[j].r = (u8)(((sinf((5 * tt) + (p.x * 10)) + 1) * 0.5f) * 255);
-      pixels.pixels[j].b = (u8)(((sinf((5 * tt) + (p.z * 10)) + 1) * 0.5f) * 255);
-    }
+    grow_pattern(pixels);
   }
   
   ///////////////////////////////////////

src_v2/user_space/user_space_incenter.cpp

@@ -18,6 +18,7 @@ incenter_init(App_State* state)
 {
   // create a fake sculpture
   Assembly_Handle ah = assembly_add(&state->assemblies, lit_str("test"), 5043, 41);
+  //Assembly_Handle ah = assembly_add(&state->assemblies, lit_str("test"), 20000, 150);
   
   scratch_get(scratch);
   Allocator* s = scratch.a;