diff --git a/ball.h b/ball.h
new file mode 100644
index 0000000..e69de29
diff --git a/blend/ball.blend b/blend/ball.blend
new file mode 100644
index 0000000..c35bd50
Binary files /dev/null and b/blend/ball.blend differ
diff --git a/include/model/ball.h b/include/model/ball.h
new file mode 100644
index 0000000..44ec1e3
--- /dev/null
+++ b/include/model/ball.h
@@ -0,0 +1,332 @@
+#pragma once
+
+const int ball_Icosphere_triangles[] = {
+    0,   1,   2,
+    3,   4,   5,
+    6,   7,   8,
+    9,  10,  11,
+   12,  13,  14,
+   15,  16,  17,
+   18,  19,  20,
+   21,  22,  23,
+   24,  25,  26,
+   27,  28,  29,
+   30,  31,  32,
+   33,  34,  35,
+   36,  37,  38,
+   39,  40,  41,
+   42,  43,  44,
+   45,  46,  47,
+   48,  49,  50,
+   51,  52,  53,
+   54,  55,  56,
+   57,  58,  59,
+   60,  61,  62,
+   63,  64,  65,
+   66,  67,  68,
+   69,  70,  71,
+   72,  73,  74,
+   75,  76,  77,
+   78,  79,  80,
+   81,  82,  83,
+   84,  85,  86,
+   87,  88,  89,
+   90,  91,  92,
+   93,  94,  95,
+   96,  97,  98,
+   99, 100, 101,
+  102, 103, 104,
+  105, 106, 107,
+  108, 109, 110,
+  111, 112, 113,
+  114, 115, 116,
+  117, 118, 119,
+  120, 121, 122,
+  123, 124, 125,
+  126, 127, 128,
+  129, 130, 131,
+  132, 133, 134,
+  135, 136, 137,
+  138, 139, 140,
+  141, 142, 143,
+  144, 145, 146,
+  147, 148, 149,
+  150, 151, 152,
+  153, 154, 155,
+  156, 157, 158,
+  159, 160, 161,
+  162, 163, 164,
+  165, 166, 167,
+  168, 169, 170,
+  171, 172, 173,
+  174, 175, 176,
+  177, 178, 179,
+  180, 181, 182,
+  183, 184, 185,
+  186, 187, 188,
+  189, 190, 191,
+  192, 193, 194,
+  195, 196, 197,
+  198, 199, 200,
+  201, 202, 203,
+  204, 205, 206,
+  207, 208, 209,
+  210, 211, 212,
+  213, 214, 215,
+  216, 217, 218,
+  219, 220, 221,
+  222, 223, 224,
+  225, 226, 227,
+  228, 229, 230,
+  231, 232, 233,
+  234, 235, 236,
+  237, 238, 239,
+};
+
+const int ball_Icosphere_triangles_length = (sizeof (ball_Icosphere_triangles)) / (sizeof (ball_Icosphere_triangles[0]));
+
+const float ball_vertices[] = {
+   0.000000f, -1.000000f,  0.000000f,  0.181819f,  0.000000f,  0.1024f, -0.9435f,  0.3151f,
+   0.425323f, -0.850654f,  0.309011f,  0.227273f,  0.078731f,  0.1024f, -0.9435f,  0.3151f,
+  -0.162456f, -0.850654f,  0.499995f,  0.136365f,  0.078731f,  0.1024f, -0.9435f,  0.3151f,
+   0.723607f, -0.447220f,  0.525725f,  0.272728f,  0.157461f,  0.7002f, -0.6617f,  0.2680f,
+   0.425323f, -0.850654f,  0.309011f,  0.318182f,  0.078731f,  0.7002f, -0.6617f,  0.2680f,
+   0.850648f, -0.525736f,  0.000000f,  0.363637f,  0.157461f,  0.7002f, -0.6617f,  0.2680f,
+   0.000000f, -1.000000f,  0.000000f,  0.909091f,  0.000000f, -0.2680f, -0.9435f,  0.1947f,
+  -0.162456f, -0.850654f,  0.499995f,  0.954545f,  0.078731f, -0.2680f, -0.9435f,  0.1947f,
+  -0.525730f, -0.850652f,  0.000000f,  0.863636f,  0.078731f, -0.2680f, -0.9435f,  0.1947f,
+   0.000000f, -1.000000f,  0.000000f,  0.727273f,  0.000000f, -0.2680f, -0.9435f, -0.1947f,
+  -0.525730f, -0.850652f,  0.000000f,  0.772727f,  0.078731f, -0.2680f, -0.9435f, -0.1947f,
+  -0.162456f, -0.850654f, -0.499995f,  0.681818f,  0.078731f, -0.2680f, -0.9435f, -0.1947f,
+   0.000000f, -1.000000f,  0.000000f,  0.545455f,  0.000000f,  0.1024f, -0.9435f, -0.3151f,
+  -0.162456f, -0.850654f, -0.499995f,  0.590909f,  0.078731f,  0.1024f, -0.9435f, -0.3151f,
+   0.425323f, -0.850654f, -0.309011f,  0.500000f,  0.078731f,  0.1024f, -0.9435f, -0.3151f,
+   0.723607f, -0.447220f,  0.525725f,  0.272728f,  0.157461f,  0.9050f, -0.3304f,  0.2680f,
+   0.850648f, -0.525736f,  0.000000f,  0.363637f,  0.157461f,  0.9050f, -0.3304f,  0.2680f,
+   0.951058f,  0.000000f,  0.309013f,  0.318182f,  0.236191f,  0.9050f, -0.3304f,  0.2680f,
+  -0.276388f, -0.447220f,  0.850649f,  0.090910f,  0.157461f,  0.0247f, -0.3304f,  0.9435f,
+   0.262869f, -0.525738f,  0.809012f,  0.181819f,  0.157461f,  0.0247f, -0.3304f,  0.9435f,
+   0.000000f,  0.000000f,  1.000000f,  0.136365f,  0.236191f,  0.0247f, -0.3304f,  0.9435f,
+  -0.894426f, -0.447216f,  0.000000f,  0.818182f,  0.157461f, -0.8897f, -0.3304f,  0.3151f,
+  -0.688189f, -0.525736f,  0.499997f,  0.909091f,  0.157461f, -0.8897f, -0.3304f,  0.3151f,
+  -0.951058f,  0.000000f,  0.309013f,  0.863636f,  0.236191f, -0.8897f, -0.3304f,  0.3151f,
+  -0.276388f, -0.447220f, -0.850649f,  0.636364f,  0.157461f, -0.5746f, -0.3304f, -0.7488f,
+  -0.688189f, -0.525736f, -0.499997f,  0.727273f,  0.157461f, -0.5746f, -0.3304f, -0.7488f,
+  -0.587786f,  0.000000f, -0.809017f,  0.681818f,  0.236191f, -0.5746f, -0.3304f, -0.7488f,
+   0.723607f, -0.447220f, -0.525725f,  0.454546f,  0.157461f,  0.5346f, -0.3304f, -0.7779f,
+   0.262869f, -0.525738f, -0.809012f,  0.545455f,  0.157461f,  0.5346f, -0.3304f, -0.7779f,
+   0.587786f,  0.000000f, -0.809017f,  0.500000f,  0.236191f,  0.5346f, -0.3304f, -0.7779f,
+   0.723607f, -0.447220f,  0.525725f,  0.272728f,  0.157461f,  0.8026f, -0.1256f,  0.5831f,
+   0.951058f,  0.000000f,  0.309013f,  0.318182f,  0.236191f,  0.8026f, -0.1256f,  0.5831f,
+   0.587786f,  0.000000f,  0.809017f,  0.227273f,  0.236191f,  0.8026f, -0.1256f,  0.5831f,
+  -0.276388f, -0.447220f,  0.850649f,  0.090910f,  0.157461f, -0.3066f, -0.1256f,  0.9435f,
+   0.000000f,  0.000000f,  1.000000f,  0.136365f,  0.236191f, -0.3066f, -0.1256f,  0.9435f,
+  -0.587786f,  0.000000f,  0.809017f,  0.045455f,  0.236191f, -0.3066f, -0.1256f,  0.9435f,
+  -0.894426f, -0.447216f,  0.000000f,  0.818182f,  0.157461f, -0.9921f, -0.1256f, -0.0000f,
+  -0.951058f,  0.000000f,  0.309013f,  0.863636f,  0.236191f, -0.9921f, -0.1256f, -0.0000f,
+  -0.951058f,  0.000000f, -0.309013f,  0.772727f,  0.236191f, -0.9921f, -0.1256f, -0.0000f,
+  -0.276388f, -0.447220f, -0.850649f,  0.636364f,  0.157461f, -0.3066f, -0.1256f, -0.9435f,
+  -0.587786f,  0.000000f, -0.809017f,  0.681818f,  0.236191f, -0.3066f, -0.1256f, -0.9435f,
+   0.000000f,  0.000000f, -1.000000f,  0.590909f,  0.236191f, -0.3066f, -0.1256f, -0.9435f,
+   0.723607f, -0.447220f, -0.525725f,  0.454546f,  0.157461f,  0.8026f, -0.1256f, -0.5831f,
+   0.587786f,  0.000000f, -0.809017f,  0.500000f,  0.236191f,  0.8026f, -0.1256f, -0.5831f,
+   0.951058f,  0.000000f, -0.309013f,  0.409092f,  0.236191f,  0.8026f, -0.1256f, -0.5831f,
+   0.276388f,  0.447220f,  0.850649f,  0.181819f,  0.314921f,  0.4089f,  0.6617f,  0.6284f,
+   0.688189f,  0.525736f,  0.499997f,  0.272728f,  0.314921f,  0.4089f,  0.6617f,  0.6284f,
+   0.162456f,  0.850654f,  0.499995f,  0.227273f,  0.393651f,  0.4089f,  0.6617f,  0.6284f,
+  -0.723607f,  0.447220f,  0.525725f,  0.000000f,  0.314921f, -0.4713f,  0.6617f,  0.5831f,
+  -0.262869f,  0.525738f,  0.809012f,  0.090910f,  0.314921f, -0.4713f,  0.6617f,  0.5831f,
+  -0.425323f,  0.850654f,  0.309011f,  0.045455f,  0.393651f, -0.4713f,  0.6617f,  0.5831f,
+  -0.723607f,  0.447220f, -0.525725f,  0.727273f,  0.314921f, -0.7002f,  0.6617f, -0.2680f,
+  -0.850648f,  0.525736f,  0.000000f,  0.818182f,  0.314921f, -0.7002f,  0.6617f, -0.2680f,
+  -0.425323f,  0.850654f, -0.309011f,  0.772727f,  0.393651f, -0.7002f,  0.6617f, -0.2680f,
+   0.276388f,  0.447220f, -0.850649f,  0.545455f,  0.314921f,  0.0385f,  0.6617f, -0.7488f,
+  -0.262869f,  0.525738f, -0.809012f,  0.636364f,  0.314921f,  0.0385f,  0.6617f, -0.7488f,
+   0.162456f,  0.850654f, -0.499995f,  0.590909f,  0.393651f,  0.0385f,  0.6617f, -0.7488f,
+   0.894426f,  0.447216f,  0.000000f,  0.363637f,  0.314921f,  0.7240f,  0.6617f, -0.1947f,
+   0.688189f,  0.525736f, -0.499997f,  0.454546f,  0.314921f,  0.7240f,  0.6617f, -0.1947f,
+   0.525730f,  0.850652f,  0.000000f,  0.409092f,  0.393651f,  0.7240f,  0.6617f, -0.1947f,
+   0.525730f,  0.850652f,  0.000000f,  0.409092f,  0.393651f,  0.2680f,  0.9435f, -0.1947f,
+   0.162456f,  0.850654f, -0.499995f,  0.500000f,  0.393651f,  0.2680f,  0.9435f, -0.1947f,
+   0.000000f,  1.000000f,  0.000000f,  0.454546f,  0.472382f,  0.2680f,  0.9435f, -0.1947f,
+   0.525730f,  0.850652f,  0.000000f,  0.409092f,  0.393651f,  0.4911f,  0.7947f, -0.3568f,
+   0.688189f,  0.525736f, -0.499997f,  0.454546f,  0.314921f,  0.4911f,  0.7947f, -0.3568f,
+   0.162456f,  0.850654f, -0.499995f,  0.500000f,  0.393651f,  0.4911f,  0.7947f, -0.3568f,
+   0.688189f,  0.525736f, -0.499997f,  0.454546f,  0.314921f,  0.4089f,  0.6617f, -0.6284f,
+   0.276388f,  0.447220f, -0.850649f,  0.545455f,  0.314921f,  0.4089f,  0.6617f, -0.6284f,
+   0.162456f,  0.850654f, -0.499995f,  0.500000f,  0.393651f,  0.4089f,  0.6617f, -0.6284f,
+   0.162456f,  0.850654f, -0.499995f,  0.590909f,  0.393651f, -0.1024f,  0.9435f, -0.3151f,
+  -0.425323f,  0.850654f, -0.309011f,  0.681818f,  0.393651f, -0.1024f,  0.9435f, -0.3151f,
+   0.000000f,  1.000000f,  0.000000f,  0.636364f,  0.472382f, -0.1024f,  0.9435f, -0.3151f,
+   0.162456f,  0.850654f, -0.499995f,  0.590909f,  0.393651f, -0.1876f,  0.7947f, -0.5773f,
+  -0.262869f,  0.525738f, -0.809012f,  0.636364f,  0.314921f, -0.1876f,  0.7947f, -0.5773f,
+  -0.425323f,  0.850654f, -0.309011f,  0.681818f,  0.393651f, -0.1876f,  0.7947f, -0.5773f,
+  -0.262869f,  0.525738f, -0.809012f,  0.636364f,  0.314921f, -0.4713f,  0.6617f, -0.5831f,
+  -0.723607f,  0.447220f, -0.525725f,  0.727273f,  0.314921f, -0.4713f,  0.6617f, -0.5831f,
+  -0.425323f,  0.850654f, -0.309011f,  0.681818f,  0.393651f, -0.4713f,  0.6617f, -0.5831f,
+  -0.425323f,  0.850654f, -0.309011f,  0.772727f,  0.393651f, -0.3313f,  0.9435f, -0.0000f,
+  -0.425323f,  0.850654f,  0.309011f,  0.863636f,  0.393651f, -0.3313f,  0.9435f, -0.0000f,
+   0.000000f,  1.000000f,  0.000000f,  0.818182f,  0.472382f, -0.3313f,  0.9435f, -0.0000f,
+  -0.425323f,  0.850654f, -0.309011f,  0.772727f,  0.393651f, -0.6071f,  0.7947f, -0.0000f,
+  -0.850648f,  0.525736f,  0.000000f,  0.818182f,  0.314921f, -0.6071f,  0.7947f, -0.0000f,
+  -0.425323f,  0.850654f,  0.309011f,  0.863636f,  0.393651f, -0.6071f,  0.7947f, -0.0000f,
+  -0.850648f,  0.525736f,  0.000000f,  0.818182f,  0.314921f, -0.7002f,  0.6617f,  0.2680f,
+  -0.723607f,  0.447220f,  0.525725f,  0.909091f,  0.314921f, -0.7002f,  0.6617f,  0.2680f,
+  -0.425323f,  0.850654f,  0.309011f,  0.863636f,  0.393651f, -0.7002f,  0.6617f,  0.2680f,
+  -0.425323f,  0.850654f,  0.309011f,  0.045455f,  0.393651f, -0.1024f,  0.9435f,  0.3151f,
+   0.162456f,  0.850654f,  0.499995f,  0.136365f,  0.393651f, -0.1024f,  0.9435f,  0.3151f,
+   0.000000f,  1.000000f,  0.000000f,  0.090910f,  0.472382f, -0.1024f,  0.9435f,  0.3151f,
+  -0.425323f,  0.850654f,  0.309011f,  0.045455f,  0.393651f, -0.1876f,  0.7947f,  0.5773f,
+  -0.262869f,  0.525738f,  0.809012f,  0.090910f,  0.314921f, -0.1876f,  0.7947f,  0.5773f,
+   0.162456f,  0.850654f,  0.499995f,  0.136365f,  0.393651f, -0.1876f,  0.7947f,  0.5773f,
+  -0.262869f,  0.525738f,  0.809012f,  0.090910f,  0.314921f,  0.0385f,  0.6617f,  0.7488f,
+   0.276388f,  0.447220f,  0.850649f,  0.181819f,  0.314921f,  0.0385f,  0.6617f,  0.7488f,
+   0.162456f,  0.850654f,  0.499995f,  0.136365f,  0.393651f,  0.0385f,  0.6617f,  0.7488f,
+   0.162456f,  0.850654f,  0.499995f,  0.227273f,  0.393651f,  0.2680f,  0.9435f,  0.1947f,
+   0.525730f,  0.850652f,  0.000000f,  0.318182f,  0.393651f,  0.2680f,  0.9435f,  0.1947f,
+   0.000000f,  1.000000f,  0.000000f,  0.272728f,  0.472382f,  0.2680f,  0.9435f,  0.1947f,
+   0.162456f,  0.850654f,  0.499995f,  0.227273f,  0.393651f,  0.4911f,  0.7947f,  0.3568f,
+   0.688189f,  0.525736f,  0.499997f,  0.272728f,  0.314921f,  0.4911f,  0.7947f,  0.3568f,
+   0.525730f,  0.850652f,  0.000000f,  0.318182f,  0.393651f,  0.4911f,  0.7947f,  0.3568f,
+   0.688189f,  0.525736f,  0.499997f,  0.272728f,  0.314921f,  0.7240f,  0.6617f,  0.1947f,
+   0.894426f,  0.447216f,  0.000000f,  0.363637f,  0.314921f,  0.7240f,  0.6617f,  0.1947f,
+   0.525730f,  0.850652f,  0.000000f,  0.318182f,  0.393651f,  0.7240f,  0.6617f,  0.1947f,
+   0.951058f,  0.000000f, -0.309013f,  0.409092f,  0.236191f,  0.8897f,  0.3304f, -0.3151f,
+   0.688189f,  0.525736f, -0.499997f,  0.454546f,  0.314921f,  0.8897f,  0.3304f, -0.3151f,
+   0.894426f,  0.447216f,  0.000000f,  0.363637f,  0.314921f,  0.8897f,  0.3304f, -0.3151f,
+   0.951058f,  0.000000f, -0.309013f,  0.409092f,  0.236191f,  0.7947f,  0.1876f, -0.5773f,
+   0.587786f,  0.000000f, -0.809017f,  0.500000f,  0.236191f,  0.7947f,  0.1876f, -0.5773f,
+   0.688189f,  0.525736f, -0.499997f,  0.454546f,  0.314921f,  0.7947f,  0.1876f, -0.5773f,
+   0.587786f,  0.000000f, -0.809017f,  0.500000f,  0.236191f,  0.5746f,  0.3304f, -0.7488f,
+   0.276388f,  0.447220f, -0.850649f,  0.545455f,  0.314921f,  0.5746f,  0.3304f, -0.7488f,
+   0.688189f,  0.525736f, -0.499997f,  0.454546f,  0.314921f,  0.5746f,  0.3304f, -0.7488f,
+   0.000000f,  0.000000f, -1.000000f,  0.590909f,  0.236191f, -0.0247f,  0.3304f, -0.9435f,
+  -0.262869f,  0.525738f, -0.809012f,  0.636364f,  0.314921f, -0.0247f,  0.3304f, -0.9435f,
+   0.276388f,  0.447220f, -0.850649f,  0.545455f,  0.314921f, -0.0247f,  0.3304f, -0.9435f,
+   0.000000f,  0.000000f, -1.000000f,  0.590909f,  0.236191f, -0.3035f,  0.1876f, -0.9342f,
+  -0.587786f,  0.000000f, -0.809017f,  0.681818f,  0.236191f, -0.3035f,  0.1876f, -0.9342f,
+  -0.262869f,  0.525738f, -0.809012f,  0.636364f,  0.314921f, -0.3035f,  0.1876f, -0.9342f,
+  -0.587786f,  0.000000f, -0.809017f,  0.681818f,  0.236191f, -0.5346f,  0.3304f, -0.7779f,
+  -0.723607f,  0.447220f, -0.525725f,  0.727273f,  0.314921f, -0.5346f,  0.3304f, -0.7779f,
+  -0.262869f,  0.525738f, -0.809012f,  0.636364f,  0.314921f, -0.5346f,  0.3304f, -0.7779f,
+  -0.951058f,  0.000000f, -0.309013f,  0.772727f,  0.236191f, -0.9050f,  0.3304f, -0.2680f,
+  -0.850648f,  0.525736f,  0.000000f,  0.818182f,  0.314921f, -0.9050f,  0.3304f, -0.2680f,
+  -0.723607f,  0.447220f, -0.525725f,  0.727273f,  0.314921f, -0.9050f,  0.3304f, -0.2680f,
+  -0.951058f,  0.000000f, -0.309013f,  0.772727f,  0.236191f, -0.9822f,  0.1876f, -0.0000f,
+  -0.951058f,  0.000000f,  0.309013f,  0.863636f,  0.236191f, -0.9822f,  0.1876f, -0.0000f,
+  -0.850648f,  0.525736f,  0.000000f,  0.818182f,  0.314921f, -0.9822f,  0.1876f, -0.0000f,
+  -0.951058f,  0.000000f,  0.309013f,  0.863636f,  0.236191f, -0.9050f,  0.3304f,  0.2680f,
+  -0.723607f,  0.447220f,  0.525725f,  0.909091f,  0.314921f, -0.9050f,  0.3304f,  0.2680f,
+  -0.850648f,  0.525736f,  0.000000f,  0.818182f,  0.314921f, -0.9050f,  0.3304f,  0.2680f,
+  -0.587786f,  0.000000f,  0.809017f,  0.045455f,  0.236191f, -0.5346f,  0.3304f,  0.7779f,
+  -0.262869f,  0.525738f,  0.809012f,  0.090910f,  0.314921f, -0.5346f,  0.3304f,  0.7779f,
+  -0.723607f,  0.447220f,  0.525725f,  0.000000f,  0.314921f, -0.5346f,  0.3304f,  0.7779f,
+  -0.587786f,  0.000000f,  0.809017f,  0.045455f,  0.236191f, -0.3035f,  0.1876f,  0.9342f,
+   0.000000f,  0.000000f,  1.000000f,  0.136365f,  0.236191f, -0.3035f,  0.1876f,  0.9342f,
+  -0.262869f,  0.525738f,  0.809012f,  0.090910f,  0.314921f, -0.3035f,  0.1876f,  0.9342f,
+   0.000000f,  0.000000f,  1.000000f,  0.136365f,  0.236191f, -0.0247f,  0.3304f,  0.9435f,
+   0.276388f,  0.447220f,  0.850649f,  0.181819f,  0.314921f, -0.0247f,  0.3304f,  0.9435f,
+  -0.262869f,  0.525738f,  0.809012f,  0.090910f,  0.314921f, -0.0247f,  0.3304f,  0.9435f,
+   0.587786f,  0.000000f,  0.809017f,  0.227273f,  0.236191f,  0.5746f,  0.3304f,  0.7488f,
+   0.688189f,  0.525736f,  0.499997f,  0.272728f,  0.314921f,  0.5746f,  0.3304f,  0.7488f,
+   0.276388f,  0.447220f,  0.850649f,  0.181819f,  0.314921f,  0.5746f,  0.3304f,  0.7488f,
+   0.587786f,  0.000000f,  0.809017f,  0.227273f,  0.236191f,  0.7947f,  0.1876f,  0.5773f,
+   0.951058f,  0.000000f,  0.309013f,  0.318182f,  0.236191f,  0.7947f,  0.1876f,  0.5773f,
+   0.688189f,  0.525736f,  0.499997f,  0.272728f,  0.314921f,  0.7947f,  0.1876f,  0.5773f,
+   0.951058f,  0.000000f,  0.309013f,  0.318182f,  0.236191f,  0.8897f,  0.3304f,  0.3151f,
+   0.894426f,  0.447216f,  0.000000f,  0.363637f,  0.314921f,  0.8897f,  0.3304f,  0.3151f,
+   0.688189f,  0.525736f,  0.499997f,  0.272728f,  0.314921f,  0.8897f,  0.3304f,  0.3151f,
+   0.587786f,  0.000000f, -0.809017f,  0.500000f,  0.236191f,  0.3066f,  0.1256f, -0.9435f,
+   0.000000f,  0.000000f, -1.000000f,  0.590909f,  0.236191f,  0.3066f,  0.1256f, -0.9435f,
+   0.276388f,  0.447220f, -0.850649f,  0.545455f,  0.314921f,  0.3066f,  0.1256f, -0.9435f,
+   0.587786f,  0.000000f, -0.809017f,  0.500000f,  0.236191f,  0.3035f, -0.1876f, -0.9342f,
+   0.262869f, -0.525738f, -0.809012f,  0.545455f,  0.157461f,  0.3035f, -0.1876f, -0.9342f,
+   0.000000f,  0.000000f, -1.000000f,  0.590909f,  0.236191f,  0.3035f, -0.1876f, -0.9342f,
+   0.262869f, -0.525738f, -0.809012f,  0.545455f,  0.157461f,  0.0247f, -0.3304f, -0.9435f,
+  -0.276388f, -0.447220f, -0.850649f,  0.636364f,  0.157461f,  0.0247f, -0.3304f, -0.9435f,
+   0.000000f,  0.000000f, -1.000000f,  0.590909f,  0.236191f,  0.0247f, -0.3304f, -0.9435f,
+  -0.587786f,  0.000000f, -0.809017f,  0.681818f,  0.236191f, -0.8026f,  0.1256f, -0.5831f,
+  -0.951058f,  0.000000f, -0.309013f,  0.772727f,  0.236191f, -0.8026f,  0.1256f, -0.5831f,
+  -0.723607f,  0.447220f, -0.525725f,  0.727273f,  0.314921f, -0.8026f,  0.1256f, -0.5831f,
+  -0.587786f,  0.000000f, -0.809017f,  0.681818f,  0.236191f, -0.7947f, -0.1876f, -0.5773f,
+  -0.688189f, -0.525736f, -0.499997f,  0.727273f,  0.157461f, -0.7947f, -0.1876f, -0.5773f,
+  -0.951058f,  0.000000f, -0.309013f,  0.772727f,  0.236191f, -0.7947f, -0.1876f, -0.5773f,
+  -0.688189f, -0.525736f, -0.499997f,  0.727273f,  0.157461f, -0.8897f, -0.3304f, -0.3151f,
+  -0.894426f, -0.447216f,  0.000000f,  0.818182f,  0.157461f, -0.8897f, -0.3304f, -0.3151f,
+  -0.951058f,  0.000000f, -0.309013f,  0.772727f,  0.236191f, -0.8897f, -0.3304f, -0.3151f,
+  -0.951058f,  0.000000f,  0.309013f,  0.863636f,  0.236191f, -0.8026f,  0.1256f,  0.5831f,
+  -0.587786f,  0.000000f,  0.809017f,  0.954545f,  0.236191f, -0.8026f,  0.1256f,  0.5831f,
+  -0.723607f,  0.447220f,  0.525725f,  0.909091f,  0.314921f, -0.8026f,  0.1256f,  0.5831f,
+  -0.951058f,  0.000000f,  0.309013f,  0.863636f,  0.236191f, -0.7947f, -0.1876f,  0.5773f,
+  -0.688189f, -0.525736f,  0.499997f,  0.909091f,  0.157461f, -0.7947f, -0.1876f,  0.5773f,
+  -0.587786f,  0.000000f,  0.809017f,  0.954545f,  0.236191f, -0.7947f, -0.1876f,  0.5773f,
+  -0.688189f, -0.525736f,  0.499997f,  0.909091f,  0.157461f, -0.5746f, -0.3304f,  0.7488f,
+  -0.276388f, -0.447220f,  0.850649f,  1.000000f,  0.157461f, -0.5746f, -0.3304f,  0.7488f,
+  -0.587786f,  0.000000f,  0.809017f,  0.954545f,  0.236191f, -0.5746f, -0.3304f,  0.7488f,
+   0.000000f,  0.000000f,  1.000000f,  0.136365f,  0.236191f,  0.3066f,  0.1256f,  0.9435f,
+   0.587786f,  0.000000f,  0.809017f,  0.227273f,  0.236191f,  0.3066f,  0.1256f,  0.9435f,
+   0.276388f,  0.447220f,  0.850649f,  0.181819f,  0.314921f,  0.3066f,  0.1256f,  0.9435f,
+   0.000000f,  0.000000f,  1.000000f,  0.136365f,  0.236191f,  0.3035f, -0.1876f,  0.9342f,
+   0.262869f, -0.525738f,  0.809012f,  0.181819f,  0.157461f,  0.3035f, -0.1876f,  0.9342f,
+   0.587786f,  0.000000f,  0.809017f,  0.227273f,  0.236191f,  0.3035f, -0.1876f,  0.9342f,
+   0.262869f, -0.525738f,  0.809012f,  0.181819f,  0.157461f,  0.5346f, -0.3304f,  0.7779f,
+   0.723607f, -0.447220f,  0.525725f,  0.272728f,  0.157461f,  0.5346f, -0.3304f,  0.7779f,
+   0.587786f,  0.000000f,  0.809017f,  0.227273f,  0.236191f,  0.5346f, -0.3304f,  0.7779f,
+   0.951058f,  0.000000f,  0.309013f,  0.318182f,  0.236191f,  0.9921f,  0.1256f, -0.0000f,
+   0.951058f,  0.000000f, -0.309013f,  0.409092f,  0.236191f,  0.9921f,  0.1256f, -0.0000f,
+   0.894426f,  0.447216f,  0.000000f,  0.363637f,  0.314921f,  0.9921f,  0.1256f, -0.0000f,
+   0.951058f,  0.000000f,  0.309013f,  0.318182f,  0.236191f,  0.9822f, -0.1876f, -0.0000f,
+   0.850648f, -0.525736f,  0.000000f,  0.363637f,  0.157461f,  0.9822f, -0.1876f, -0.0000f,
+   0.951058f,  0.000000f, -0.309013f,  0.409092f,  0.236191f,  0.9822f, -0.1876f, -0.0000f,
+   0.850648f, -0.525736f,  0.000000f,  0.363637f,  0.157461f,  0.9050f, -0.3304f, -0.2680f,
+   0.723607f, -0.447220f, -0.525725f,  0.454546f,  0.157461f,  0.9050f, -0.3304f, -0.2680f,
+   0.951058f,  0.000000f, -0.309013f,  0.409092f,  0.236191f,  0.9050f, -0.3304f, -0.2680f,
+   0.425323f, -0.850654f, -0.309011f,  0.500000f,  0.078731f,  0.4713f, -0.6617f, -0.5831f,
+   0.262869f, -0.525738f, -0.809012f,  0.545455f,  0.157461f,  0.4713f, -0.6617f, -0.5831f,
+   0.723607f, -0.447220f, -0.525725f,  0.454546f,  0.157461f,  0.4713f, -0.6617f, -0.5831f,
+   0.425323f, -0.850654f, -0.309011f,  0.500000f,  0.078731f,  0.1876f, -0.7947f, -0.5773f,
+  -0.162456f, -0.850654f, -0.499995f,  0.590909f,  0.078731f,  0.1876f, -0.7947f, -0.5773f,
+   0.262869f, -0.525738f, -0.809012f,  0.545455f,  0.157461f,  0.1876f, -0.7947f, -0.5773f,
+  -0.162456f, -0.850654f, -0.499995f,  0.590909f,  0.078731f, -0.0385f, -0.6617f, -0.7488f,
+  -0.276388f, -0.447220f, -0.850649f,  0.636364f,  0.157461f, -0.0385f, -0.6617f, -0.7488f,
+   0.262869f, -0.525738f, -0.809012f,  0.545455f,  0.157461f, -0.0385f, -0.6617f, -0.7488f,
+  -0.162456f, -0.850654f, -0.499995f,  0.681818f,  0.078731f, -0.4089f, -0.6617f, -0.6284f,
+  -0.688189f, -0.525736f, -0.499997f,  0.727273f,  0.157461f, -0.4089f, -0.6617f, -0.6284f,
+  -0.276388f, -0.447220f, -0.850649f,  0.636364f,  0.157461f, -0.4089f, -0.6617f, -0.6284f,
+  -0.162456f, -0.850654f, -0.499995f,  0.681818f,  0.078731f, -0.4911f, -0.7947f, -0.3568f,
+  -0.525730f, -0.850652f,  0.000000f,  0.772727f,  0.078731f, -0.4911f, -0.7947f, -0.3568f,
+  -0.688189f, -0.525736f, -0.499997f,  0.727273f,  0.157461f, -0.4911f, -0.7947f, -0.3568f,
+  -0.525730f, -0.850652f,  0.000000f,  0.772727f,  0.078731f, -0.7240f, -0.6617f, -0.1947f,
+  -0.894426f, -0.447216f,  0.000000f,  0.818182f,  0.157461f, -0.7240f, -0.6617f, -0.1947f,
+  -0.688189f, -0.525736f, -0.499997f,  0.727273f,  0.157461f, -0.7240f, -0.6617f, -0.1947f,
+  -0.525730f, -0.850652f,  0.000000f,  0.863636f,  0.078731f, -0.7240f, -0.6617f,  0.1947f,
+  -0.688189f, -0.525736f,  0.499997f,  0.909091f,  0.157461f, -0.7240f, -0.6617f,  0.1947f,
+  -0.894426f, -0.447216f,  0.000000f,  0.818182f,  0.157461f, -0.7240f, -0.6617f,  0.1947f,
+  -0.525730f, -0.850652f,  0.000000f,  0.863636f,  0.078731f, -0.4911f, -0.7947f,  0.3568f,
+  -0.162456f, -0.850654f,  0.499995f,  0.954545f,  0.078731f, -0.4911f, -0.7947f,  0.3568f,
+  -0.688189f, -0.525736f,  0.499997f,  0.909091f,  0.157461f, -0.4911f, -0.7947f,  0.3568f,
+  -0.162456f, -0.850654f,  0.499995f,  0.954545f,  0.078731f, -0.4089f, -0.6617f,  0.6284f,
+  -0.276388f, -0.447220f,  0.850649f,  1.000000f,  0.157461f, -0.4089f, -0.6617f,  0.6284f,
+  -0.688189f, -0.525736f,  0.499997f,  0.909091f,  0.157461f, -0.4089f, -0.6617f,  0.6284f,
+   0.850648f, -0.525736f,  0.000000f,  0.363637f,  0.157461f,  0.7002f, -0.6617f, -0.2680f,
+   0.425323f, -0.850654f, -0.309011f,  0.409092f,  0.078731f,  0.7002f, -0.6617f, -0.2680f,
+   0.723607f, -0.447220f, -0.525725f,  0.454546f,  0.157461f,  0.7002f, -0.6617f, -0.2680f,
+   0.850648f, -0.525736f,  0.000000f,  0.363637f,  0.157461f,  0.6071f, -0.7947f, -0.0000f,
+   0.425323f, -0.850654f,  0.309011f,  0.318182f,  0.078731f,  0.6071f, -0.7947f, -0.0000f,
+   0.425323f, -0.850654f, -0.309011f,  0.409092f,  0.078731f,  0.6071f, -0.7947f, -0.0000f,
+   0.425323f, -0.850654f,  0.309011f,  0.318182f,  0.078731f,  0.3313f, -0.9435f, -0.0000f,
+   0.000000f, -1.000000f,  0.000000f,  0.363637f,  0.000000f,  0.3313f, -0.9435f, -0.0000f,
+   0.425323f, -0.850654f, -0.309011f,  0.409092f,  0.078731f,  0.3313f, -0.9435f, -0.0000f,
+  -0.162456f, -0.850654f,  0.499995f,  0.136365f,  0.078731f, -0.0385f, -0.6617f,  0.7488f,
+   0.262869f, -0.525738f,  0.809012f,  0.181819f,  0.157461f, -0.0385f, -0.6617f,  0.7488f,
+  -0.276388f, -0.447220f,  0.850649f,  0.090910f,  0.157461f, -0.0385f, -0.6617f,  0.7488f,
+  -0.162456f, -0.850654f,  0.499995f,  0.136365f,  0.078731f,  0.1876f, -0.7947f,  0.5773f,
+   0.425323f, -0.850654f,  0.309011f,  0.227273f,  0.078731f,  0.1876f, -0.7947f,  0.5773f,
+   0.262869f, -0.525738f,  0.809012f,  0.181819f,  0.157461f,  0.1876f, -0.7947f,  0.5773f,
+   0.425323f, -0.850654f,  0.309011f,  0.227273f,  0.078731f,  0.4713f, -0.6617f,  0.5831f,
+   0.723607f, -0.447220f,  0.525725f,  0.272728f,  0.157461f,  0.4713f, -0.6617f,  0.5831f,
+   0.262869f, -0.525738f,  0.809012f,  0.181819f,  0.157461f,  0.4713f, -0.6617f,  0.5831f,
+};
+
+const int ball_vertices_length = (sizeof (ball_vertices)) / (sizeof (ball_vertices[0]));
+
diff --git a/include/model/ball.mtl b/include/model/ball.mtl
new file mode 100644
index 0000000..4a7e04d
--- /dev/null
+++ b/include/model/ball.mtl
@@ -0,0 +1,2 @@
+# Blender 4.4.3 MTL File: 'ball.blend'
+# www.blender.org
diff --git a/include/model/ball.obj b/include/model/ball.obj
new file mode 100644
index 0000000..36f6535
--- /dev/null
+++ b/include/model/ball.obj
@@ -0,0 +1,270 @@
+# Blender 4.4.3
+# www.blender.org
+mtllib ball.mtl
+o Icosphere
+v 0.000000 -1.000000 0.000000
+v 0.723607 -0.447220 0.525725
+v -0.276388 -0.447220 0.850649
+v -0.894426 -0.447216 0.000000
+v -0.276388 -0.447220 -0.850649
+v 0.723607 -0.447220 -0.525725
+v 0.276388 0.447220 0.850649
+v -0.723607 0.447220 0.525725
+v -0.723607 0.447220 -0.525725
+v 0.276388 0.447220 -0.850649
+v 0.894426 0.447216 0.000000
+v 0.000000 1.000000 0.000000
+v -0.162456 -0.850654 0.499995
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diff --git a/include/render.hpp b/include/render.hpp
index 4e8f8f8..bda65f7 100644
--- a/include/render.hpp
+++ b/include/render.hpp
@@ -14,6 +14,7 @@ extern "C" {
 
   void render(struct mesh paddle_mesh,
               struct mesh brick_mesh,
+              struct mesh ball_mesh,
               uint attrib_position,
               uint attrib_normal,
               uint uniform_trans,
diff --git a/src/main.c b/src/main.c
index 1024ebb..abe5b5d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -13,9 +13,10 @@
 
 #include "model/brick.h"
 #include "model/paddle.h"
+#include "model/ball.h"
 
-static int vp_width = 1200;
-static int vp_height = 1200;
+int vp_width = 2400;
+int vp_height = 1200;
 
 void framebuffer_size_callback(GLFWwindow* window, int width, int height)
 {
@@ -76,6 +77,7 @@ int main()
 
   struct mesh paddle_mesh;
   struct mesh brick_mesh;
+  struct mesh ball_mesh;
   brick_mesh.vtx = make_buffer(GL_ARRAY_BUFFER, brick_vertices, (sizeof (brick_vertices)));
   brick_mesh.idx = make_buffer(GL_ELEMENT_ARRAY_BUFFER, brick_Cube_triangles, (sizeof (brick_Cube_triangles)));
   brick_mesh.length = brick_Cube_triangles_length;
@@ -84,6 +86,10 @@ int main()
   paddle_mesh.idx = make_buffer(GL_ELEMENT_ARRAY_BUFFER, paddle_Cylinder_triangles, (sizeof (paddle_Cylinder_triangles)));
   paddle_mesh.length = paddle_Cylinder_triangles_length;
 
+  ball_mesh.vtx = make_buffer(GL_ARRAY_BUFFER, ball_vertices, (sizeof (ball_vertices)));
+  ball_mesh.idx = make_buffer(GL_ELEMENT_ARRAY_BUFFER, ball_Icosphere_triangles, (sizeof (ball_Icosphere_triangles)));
+  ball_mesh.length = ball_Icosphere_triangles_length;
+
   uint program = compile_shader(src_shader_vertex_color_vp_glsl_start,
                                 src_shader_vertex_color_vp_glsl_size,
                                 src_shader_vertex_color_fp_glsl_start,
@@ -146,6 +152,7 @@ int main()
 
     render(paddle_mesh,
            brick_mesh,
+           ball_mesh,
            attrib_position,
            attrib_normal,
            uniform_trans,
diff --git a/src/render.cpp b/src/render.cpp
index bc41c70..d26dc6e 100644
--- a/src/render.cpp
+++ b/src/render.cpp
@@ -13,6 +13,9 @@
 
 #define PI 3.14159274101257324219f
 
+extern int vp_width;
+extern int vp_height;
+
 mat4x4 perspective(float low1, float high1,
                    float low2, float high2)
 {
@@ -60,6 +63,7 @@ mat4x4 perspective(float low1, float high1,
 
 void render(mesh paddle_mesh,
             mesh brick_mesh,
+            mesh ball_mesh,
             uint attrib_position,
             uint attrib_normal,
             uint uniform_trans,
@@ -70,6 +74,10 @@ void render(mesh paddle_mesh,
 {
   static float theta = 0;
 
+  float aspect = (float)vp_height / (float)vp_width;
+
+  mat4x4 a = scale(vec3(aspect, 1.0f, 1.0f));
+
   theta += 0.01;
 
   //////////////////////////////////////////////////////////////////////
@@ -133,7 +141,7 @@ void render(mesh paddle_mesh,
 
       mat4x4 t = translate(vec3(px, py, 0.0));
 
-      mat4x4 trans = t * rx * s;
+      mat4x4 trans = a * t * rx * s;
 
       //mat3x3 normal_trans = transpose(inverse(submatrix(trans, 0, 0)));
       mat3x3 normal_trans = submatrix(rx, 3, 3);
@@ -161,7 +169,7 @@ void render(mesh paddle_mesh,
     float py = ((float)26 / 28.0) * -2.0 + 1.0 - 1.0f / 28.0f;
     mat4x4 t = translate(vec3(px, py, 0.0));
 
-    mat4x4 trans = t * rx * s;
+    mat4x4 trans = a * t * rx * s;
     mat3x3 normal_trans = submatrix(rx, 3, 3);
     //vec3 base_color = vec3(1, 1, 1);
     vec3 base_color = vec3(1, 1, 1) * 0.5f;
@@ -203,4 +211,58 @@ void render(mesh paddle_mesh,
 
     glDrawElements(GL_TRIANGLES, paddle_mesh.length, GL_UNSIGNED_INT, 0);
   }
+
+  //////////////////////////////////////////////////////////////////////
+  // render ball
+  //////////////////////////////////////////////////////////////////////
+
+  {
+    mat4x4 rx = rotate_y(PI / 2.0f);
+    mat4x4 s = scale(0.03f);
+    float px = ((float)paddle_x / 13.0) * 2.0 - 1.0 + 1.0f / 13.0f;
+    float py = ((float)25 / 28.0) * -2.0 + 1.0 - 1.0f / 28.0f;
+    mat4x4 t = translate(vec3(px, py, 0.0));
+
+    mat4x4 trans = a * t * rx * s;
+    mat3x3 normal_trans = submatrix(rx, 3, 3);
+    //vec3 base_color = vec3(1, 1, 1);
+    vec3 base_color = vec3(1, 1, 1) * 0.5f;
+    //vec3 light_pos = vec3(-1, -1, 1);
+
+    glBindBuffer(GL_ARRAY_BUFFER, ball_mesh.vtx);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ball_mesh.idx);
+
+    glVertexAttribPointer(attrib_position,
+                          3,
+                          GL_FLOAT,
+                          GL_FALSE,
+                          (sizeof (float)) * 8,
+                          (void*)(0 * 4)
+                          );
+    /*
+      glVertexAttribPointer(vertex_color_attrib_texture,
+      2,
+      GL_FLOAT,
+      GL_FALSE,
+      (sizeof (float)) * 8,
+      (void*)(3 * 4)
+      );
+    */
+    glVertexAttribPointer(attrib_normal,
+                          3,
+                          GL_FLOAT,
+                          GL_FALSE,
+                          (sizeof (float)) * 8,
+                          (void*)(5 * 4)
+                          );
+    glEnableVertexAttribArray(attrib_position);
+    glEnableVertexAttribArray(attrib_normal);
+
+    glUniform4fv(uniform_trans, 4, &trans[0][0]);
+    glUniform3fv(uniform_normal_trans, 3, &normal_trans[0][0]);
+    glUniform3fv(uniform_base_color, 1, &base_color[0]);
+    glUniform3fv(uniform_light_pos, 1, &light_pos[0]);
+
+    glDrawElements(GL_TRIANGLES, paddle_mesh.length, GL_UNSIGNED_INT, 0);
+  }
 }