[gegl] perspective bug: best attempt so far

[Nicolas Robidoux <nrobidoux src gnome org>]

commit f65eab45bc8174245d51c69f85516b77ffc7fedb
Author: Nicolas Robidoux <nrobidoux git gnome org>
Date:   Sun Dec 16 20:28:10 2012 -0500

    perspective bug: best attempt so far

 gegl/gegl-matrix.c                    |   10 +++++-----
 operations/transform/transform-core.c |    2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/gegl/gegl-matrix.c b/gegl/gegl-matrix.c
index d06460a..e813391 100644
--- a/gegl/gegl-matrix.c
+++ b/gegl/gegl-matrix.c
@@ -219,11 +219,11 @@ gegl_matrix3_transform_point (GeglMatrix3 *matrix,
   
   w = (*x * matrix->coeff [2][0] + *y * matrix->coeff [2][1] + matrix->coeff [2][2]);
 
-/*
- * Attempt at making near degenerate cases be handled somewhat
- * gracefully: Set a floor, above 0, for w.
- */
-#define PERSPECTIVE_TRANSFORM_EPSILON ((gdouble) 1.e-6)
+  /*
+   * Attempt at making near degenerate cases be handled somewhat
+   * gracefully: Set a floor, above 0, for w.
+   */
+#define PERSPECTIVE_TRANSFORM_EPSILON ((gdouble) 1.e-4)
 #define CLAMP_PERSPECTIVE_TRANSFORM(w) \
   ( (w) > PERSPECTIVE_TRANSFORM_EPSILON ? (w) : PERSPECTIVE_TRANSFORM_EPSILON )
 
diff --git a/operations/transform/transform-core.c b/operations/transform/transform-core.c
index 137e991..1240a64 100644
--- a/operations/transform/transform-core.c
+++ b/operations/transform/transform-core.c
@@ -1082,7 +1082,7 @@ transform_generic (GeglBuffer  *dest,
  * Attempt at making near degenerate cases be handled somewhat
  * gracefully: Set a floor, above 0, for w.
  */
-#define PERSPECTIVE_TRANSFORM_EPSILON ((gdouble) 1.e-6)
+#define PERSPECTIVE_TRANSFORM_EPSILON ((gdouble) 1.e-5)
 #define CLAMP_PERSPECTIVE_TRANSFORM(w) \
   ( (w) > PERSPECTIVE_TRANSFORM_EPSILON ? (w) : PERSPECTIVE_TRANSFORM_EPSILON )