From ceb4dea90712c544ea980345a83daa8a6b82ee98 Mon Sep 17 00:00:00 2001
From: Tonton Th <tth@linda.buvette.org>
Date: Tue, 10 Feb 2026 04:08:49 +0100
Subject: [PATCH] add border to the hole

---
 contexte.inc  | 13 +++++++++----
 xperiment.inc | 21 ++++++++++++++++++++-
 2 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/contexte.inc b/contexte.inc
index b84e040..0a37dfd 100644
--- a/contexte.inc
+++ b/contexte.inc
@@ -11,7 +11,7 @@
 #macro Trois_Portiques (Dist)
 union	{
 	object { Portique_A ()					}
-	object { Portique_A () scale <1, 1.1, 1> translate z*5	}
+	object { Portique_A () scale <1, 1.15, 1> translate z*5	}
 	object { Portique_A () translate z*10			}
 	// XXX scale 1.85
 	}
@@ -255,14 +255,19 @@ difference {
 	box { <-Big, -0.21, -Big>, < Big, 0.0000,  Big> }
 	#undef Big
 	#for (Foo, 0, 5)
-	  cylinder { -y*5, y*5, 3.1 translate UnderHoles[Foo] }
+	  cylinder { -y*5, y*5, R_hole translate UnderHoles[Foo] }
 	#end
 	texture { Ground_Texture }
 	}
 }
 
-/*	XXX
- *   L'indispensable Repere est parti dans 'gadgets.inc' ! */
+/* 10 fev 2026, on place des bordures autour des trous	*/
+/*		-> xperiment.inc			*/
+#for (foo, 0, 5)
+	#local YHB = (0.08 + (0.5*rand(Rng1)) * y);
+	object { HoleBorder (1.14) translate YHB + UnderHoles[foo] }
+#end
+
 /* ======================================================= */
 /*
  *	nouvel éclairage du 10 février 2025
diff --git a/xperiment.inc b/xperiment.inc
index a7c1549..0bcdf5a 100644
--- a/xperiment.inc
+++ b/xperiment.inc
@@ -4,6 +4,25 @@
  *	A cosy place for experimental things (2025/10/27)
  *
  */
+
+/* =============================================================== */
+/*
+ *	nouveau : Tue Feb 10 12:42:43 AM UTC 2026
+ */
+#macro HoleBorder (V)
+difference {
+	#local RA = V * R_hole * 1.005;
+	#local RB = V * R_hole * 0.995;
+	cylinder { 0, y*0.22, RA }
+	cylinder { -y, y*2, RB }
+	#local R = rand(Rng1);
+	#if (R < 0.50)
+	  texture { LeGris }
+	#else
+	  texture { Flashy scale 38 }
+	#end
+	}
+#end
 /* =============================================================== */
 /*
  *	new Tue Dec 30 07:39:09 AM UTC 2025
@@ -12,7 +31,7 @@
 {
 union	{
 	#local EX = 2.4;
-	#local EZ = 2.1 + (0.5*sin(NormClock));
+	#local EZ = 2.1 + (0.5*sin(NormClock*2));
 	object { Trident_A ()  rotate x*87 				}
 	object { HexaBenz  ()  translate <-EX,    0,   -EZ>		}
 	object { HexaCone  ()  translate < EX,   -0.4, -EZ>		}