From f924d3e00db476c06f55f3d5aaef307e17575340 Mon Sep 17 00:00:00 2001
From: Normand Briere <nbriere@noware.ca>
Date: Mon, 13 May 2019 07:29:08 -0400
Subject: [PATCH] Transform children

---
 LA.java |   21 +++++++++++++--------
 1 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/LA.java b/LA.java
index 20a9211..904647a 100644
--- a/LA.java
+++ b/LA.java
@@ -160,6 +160,7 @@
 
     static cVector xformDir(cVector v, double mat[][])
     {
+                    new Exception().printStackTrace();
         System.exit(0);
         cVector temp = new cVector();
         xformDir(v, mat, temp);
@@ -306,14 +307,15 @@
 
         }
 
-        GrafreeD.Assert(Math.abs(src[0][3]) <= 1E-15);
-        GrafreeD.Assert(Math.abs(src[1][3]) <= 1E-15);
-        GrafreeD.Assert(Math.abs(src[2][3]) <= 1E-15);
-        GrafreeD.Assert(Math.abs(src[3][3] - 1) <= 1E-15);
-        GrafreeD.Assert(Math.abs(dst[0][3]) <= 1E-15);
-        GrafreeD.Assert(Math.abs(dst[1][3]) <= 1E-15);
-        GrafreeD.Assert(Math.abs(dst[2][3]) <= 1E-15);
-        GrafreeD.Assert(Math.abs(dst[3][3] - 1) <= 1E-15);
+        // Last row should always be 0 0 0 1
+        Grafreed.Assert(Math.abs(src[0][3]) <= 1E-15);
+        Grafreed.Assert(Math.abs(src[1][3]) <= 1E-15);
+        Grafreed.Assert(Math.abs(src[2][3]) <= 1E-15);
+        Grafreed.Assert(Math.abs(src[3][3] - 1) <= 1E-15);
+        Grafreed.Assert(Math.abs(dst[0][3]) <= 1E-15);
+        Grafreed.Assert(Math.abs(dst[1][3]) <= 1E-15);
+        Grafreed.Assert(Math.abs(dst[2][3]) <= 1E-15);
+        Grafreed.Assert(Math.abs(dst[3][3] - 1) <= 1E-15);
     }
 
     static double toRadians(double degrees)
@@ -623,6 +625,7 @@
     private static int indxr[] = new int[4];
     private static int indxc[] = new int[4];
     
+    static double[][] Identity = new double[4][4];
     
     static int SIZE = 0; // 65536*64;
     
@@ -638,6 +641,8 @@
             costable[i] = Math.cos(PI2 * i/SIZE);
             sintable[i] = Math.sin(PI2 * i*i/SIZE/SIZE);
         }
+        
+        LA.matIdentity(Identity);
     }
     
     static double cos(double x0)

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