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diff --git a/src/gleem/linalg/Mat3f.java b/src/gleem/linalg/Mat3f.java
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index 024df82..0000000
--- a/src/gleem/linalg/Mat3f.java
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@@ -1,194 +0,0 @@
-/*
- * gleem -- OpenGL Extremely Easy-To-Use Manipulators.
- * Copyright (C) 1998-2003 Kenneth B. Russell ([email protected])
- *
- * Copying, distribution and use of this software in source and binary
- * forms, with or without modification, is permitted provided that the
- * following conditions are met:
- *
- * Distributions of source code must reproduce the copyright notice,
- * this list of conditions and the following disclaimer in the source
- * code header files; and Distributions of binary code must reproduce
- * the copyright notice, this list of conditions and the following
- * disclaimer in the documentation, Read me file, license file and/or
- * other materials provided with the software distribution.
- *
- * The names of Sun Microsystems, Inc. ("Sun") and/or the copyright
- * holder may not be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS," WITHOUT A WARRANTY OF ANY
- * KIND. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
- * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, NON-INTERFERENCE, ACCURACY OF
- * INFORMATIONAL CONTENT OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. THE
- * COPYRIGHT HOLDER, SUN AND SUN'S LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL THE
- * COPYRIGHT HOLDER, SUN OR SUN'S LICENSORS BE LIABLE FOR ANY LOST
- * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
- * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
- * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
- * INABILITY TO USE THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGES. YOU ACKNOWLEDGE THAT THIS SOFTWARE IS NOT
- * DESIGNED, LICENSED OR INTENDED FOR USE IN THE DESIGN, CONSTRUCTION,
- * OPERATION OR MAINTENANCE OF ANY NUCLEAR FACILITY. THE COPYRIGHT
- * HOLDER, SUN AND SUN'S LICENSORS DISCLAIM ANY EXPRESS OR IMPLIED
- * WARRANTY OF FITNESS FOR SUCH USES.
- */
-
-package gleem.linalg;
-
-/** 3x3 matrix class useful for simple linear algebra. Representation
-    is (as Mat4f) in row major order and assumes multiplication by
-    column vectors on the right. */
-
-public class Mat3f {
-  private float[] data;
-
-  /** Creates new matrix initialized to the zero matrix */
-  public Mat3f() {
-    data = new float[9];
-  }
-
-  /** Initialize to the identity matrix. */
-  public void makeIdent() {
-    for (int i = 0; i < 3; i++) {
-      for (int j = 0; j < 3; j++) {
-        if (i == j) {
-          set(i, j, 1.0f);
-        } else {
-          set(i, j, 0.0f);
-        }
-      }
-    }
-  }
-  
-  /** Gets the (i,j)th element of this matrix, where i is the row
-      index and j is the column index */
-  public float get(int i, int j) {
-    return data[3 * i + j];
-  }
-
-  /** Sets the (i,j)th element of this matrix, where i is the row
-      index and j is the column index */
-  public void set(int i, int j, float val) {
-    data[3 * i + j] = val;
-  }
-
-  /** Set column i (i=[0..2]) to vector v. */
-  public void setCol(int i, Vec3f v) {
-    set(0, i, v.x());
-    set(1, i, v.y());
-    set(2, i, v.z());
-  }
-
-  /** Set row i (i=[0..2]) to vector v. */
-  public void setRow(int i, Vec3f v) {
-    set(i, 0, v.x());
-    set(i, 1, v.y());
-    set(i, 2, v.z());
-  }
-
-  /** Transpose this matrix in place. */
-  public void transpose() {
-    float t;
-    t = get(0, 1);
-    set(0, 1, get(1, 0));
-    set(1, 0, t);
-
-    t = get(0, 2);
-    set(0, 2, get(2, 0));
-    set(2, 0, t);
-
-    t = get(1, 2);
-    set(1, 2, get(2, 1));
-    set(2, 1, t);
-  }
-
-  /** Return the determinant. Computed across the zeroth row. */
-  public float determinant() {
-    return (get(0, 0) * (get(1, 1) * get(2, 2) - get(2, 1) * get(1, 2)) +
-            get(0, 1) * (get(2, 0) * get(1, 2) - get(1, 0) * get(2, 2)) +
-            get(0, 2) * (get(1, 0) * get(2, 1) - get(2, 0) * get(1, 1)));
-  }
-
-  /** Full matrix inversion in place. If matrix is singular, returns
-      false and matrix contents are untouched. If you know the matrix
-      is orthonormal, you can call transpose() instead. */
-  public boolean invert() {
-    float det = determinant();
-    if (det == 0.0f)
-      return false;
-
-    // Form cofactor matrix
-    Mat3f cf = new Mat3f();
-    cf.set(0, 0, get(1, 1) * get(2, 2) - get(2, 1) * get(1, 2));
-    cf.set(0, 1, get(2, 0) * get(1, 2) - get(1, 0) * get(2, 2));
-    cf.set(0, 2, get(1, 0) * get(2, 1) - get(2, 0) * get(1, 1));
-    cf.set(1, 0, get(2, 1) * get(0, 2) - get(0, 1) * get(2, 2));
-    cf.set(1, 1, get(0, 0) * get(2, 2) - get(2, 0) * get(0, 2));
-    cf.set(1, 2, get(2, 0) * get(0, 1) - get(0, 0) * get(2, 1));
-    cf.set(2, 0, get(0, 1) * get(1, 2) - get(1, 1) * get(0, 2));
-    cf.set(2, 1, get(1, 0) * get(0, 2) - get(0, 0) * get(1, 2));
-    cf.set(2, 2, get(0, 0) * get(1, 1) - get(1, 0) * get(0, 1));
-
-    // Now copy back transposed
-    for (int i = 0; i < 3; i++)
-      for (int j = 0; j < 3; j++)
-        set(i, j, cf.get(j, i) / det);
-    return true;
-  }
-
-  /** Multiply a 3D vector by this matrix. NOTE: src and dest must be
-      different vectors. */
-  public void xformVec(Vec3f src, Vec3f dest) {
-    dest.set(get(0, 0) * src.x() +
-             get(0, 1) * src.y() +
-             get(0, 2) * src.z(),
-             
-             get(1, 0) * src.x() +
-             get(1, 1) * src.y() +
-             get(1, 2) * src.z(),
-
-             get(2, 0) * src.x() +
-             get(2, 1) * src.y() +
-             get(2, 2) * src.z());
-  }
-
-  /** Returns this * b; creates new matrix */
-  public Mat3f mul(Mat3f b) {
-    Mat3f tmp = new Mat3f();
-    tmp.mul(this, b);
-    return tmp;
-  }
-
-  /** this = a * b */
-  public void mul(Mat3f a, Mat3f b) {
-    for (int rc = 0; rc < 3; rc++)
-      for (int cc = 0; cc < 3; cc++) {
-        float tmp = 0.0f;
-        for (int i = 0; i < 3; i++)
-          tmp += a.get(rc, i) * b.get(i, cc);
-        set(rc, cc, tmp);
-      }
-  }
-
-  public Matf toMatf() {
-    Matf out = new Matf(3, 3);
-    for (int i = 0; i < 3; i++) {
-      for (int j = 0; j < 3; j++) {
-        out.set(i, j, get(i, j));
-      }
-    }
-    return out;
-  }
-
-  public String toString() {
-    String endl = System.getProperty("line.separator");
-    return "(" +
-      get(0, 0) + ", " + get(0, 1) + ", " + get(0, 2) + endl +
-      get(1, 0) + ", " + get(1, 1) + ", " + get(1, 2) + endl +
-      get(2, 0) + ", " + get(2, 1) + ", " + get(2, 2) + ")";
-  }
-}