diff --git a/pandatool/src/egg-palettize/eggPalettize.cxx b/pandatool/src/egg-palettize/eggPalettize.cxx
index ac78ccdee3..e81c906470 100644
--- a/pandatool/src/egg-palettize/eggPalettize.cxx
+++ b/pandatool/src/egg-palettize/eggPalettize.cxx
@@ -191,6 +191,16 @@ EggPalettize() : EggMultiFilter(true) {
      "to be rebuilt if necessary to optimize the packing, but this "
      "may invalidate other egg files which share this palette.",
      &EggPalettize::dispatch_none, &_optimal);
+  add_option
+    ("omitall", "", 0,
+     "Re-enables the flag to omit all textures.  This flag is normally on "
+     "by default, causing nothing actually to be palettized, until the "
+     "first time egg-palettize is run with the -opt flag, which turns off "
+     "the omitall flag and thenceforth allows textures to be combined "
+     "into palettes.  Specifying this flag restores the original behavior "
+     "of keeping every texture as a separate image (which is convenient for "
+     "development).",
+     &EggPalettize::dispatch_none, &_omitall);
 
   // This isn't even implemented yet.  Presently, we never lock anyway.
   // Dangerous, but hard to implement reliable file locking across
@@ -600,6 +610,9 @@ run() {
          << " does not exist; starting palettization from scratch.\n";
     pal = new Palettizer;
 
+    // By default, the -omitall flag is true from the beginning.
+    pal->_omit_everything = true;
+
   } else {
     // Read the Palettizer object from the Bam file written
     // previously.  This will recover all of the state saved from the
@@ -716,6 +729,12 @@ run() {
   // vice-versa.
   pal->_omit_solitary = _optimal;
 
+  if (_omitall) {
+    pal->_omit_everything = true;
+  } else if (_optimal) {
+    pal->_omit_everything = false;
+  }
+
   pal->all_params_set();
 
   // Remove any files named for removal.
diff --git a/pandatool/src/egg-palettize/eggPalettize.h b/pandatool/src/egg-palettize/eggPalettize.h
index 1d541befb9..b78785b60a 100644
--- a/pandatool/src/egg-palettize/eggPalettize.h
+++ b/pandatool/src/egg-palettize/eggPalettize.h
@@ -66,6 +66,7 @@ private:
   bool _report_statistics;
   bool _all_textures;
   bool _optimal;
+  bool _omitall;
   bool _redo_all;
   bool _redo_eggs;
   bool _dont_lock_txa;
diff --git a/pandatool/src/palettizer/omitReason.cxx b/pandatool/src/palettizer/omitReason.cxx
index e72566e533..9acde34a97 100644
--- a/pandatool/src/palettizer/omitReason.cxx
+++ b/pandatool/src/palettizer/omitReason.cxx
@@ -44,6 +44,9 @@ operator << (ostream &out, OmitReason omit) {
 
   case OR_unused:
     return out << "unused";
+
+  case OR_default_omit:
+    return out << "default_omit";
   }
 
   return out << "**invalid**(" << (int)omit << ")";
diff --git a/pandatool/src/palettizer/omitReason.h b/pandatool/src/palettizer/omitReason.h
index a9f34721f4..fa76bbeb24 100644
--- a/pandatool/src/palettizer/omitReason.h
+++ b/pandatool/src/palettizer/omitReason.h
@@ -53,6 +53,9 @@ enum OmitReason {
   OR_unused,
   // The texture is no longer used by any of the egg files that
   // formerly referenced it.
+
+  OR_default_omit,
+  // The texture is omitted because _omit_everything is set true.
 };
 
 ostream &operator << (ostream &out, OmitReason omit);
diff --git a/pandatool/src/palettizer/palettizer.cxx b/pandatool/src/palettizer/palettizer.cxx
index db27adc2b9..4f2d30381e 100644
--- a/pandatool/src/palettizer/palettizer.cxx
+++ b/pandatool/src/palettizer/palettizer.cxx
@@ -41,13 +41,14 @@ Palettizer *pal = (Palettizer *)NULL;
 // allows us to easily update egg-palettize to write out additional
 // information to its pi file, without having it increment the bam
 // version number for all bam and boo files anywhere in the world.
-int Palettizer::_pi_version = 13;
+int Palettizer::_pi_version = 14;
 // Updated to version 8 on 3/20/03 to remove extensions from texture key names.
 // Updated to version 9 on 4/13/03 to add a few properties in various places.
 // Updated to version 10 on 4/15/03 to add _alpha_file_channel.
 // Updated to version 11 on 4/30/03 to add TextureReference::_tref_name.
 // Updated to version 12 on 9/11/03 to add _generated_image_pattern.
 // Updated to version 13 on 9/13/03 to add _keep_format and _background.
+// Updated to version 14 on 7/26/06 to add _omit_everything.
 
 int Palettizer::_min_pi_version = 8;
 // Dropped support for versions 7 and below on 7/14/03.
@@ -109,6 +110,7 @@ Palettizer() {
   _shadow_dirname = "shadow";
   _margin = 2;
   _omit_solitary = false;
+  _omit_everything = false;
   _coverage_threshold = 2.5;
   _aggressively_clean_mapdir = true;
   _force_power_2 = true;
@@ -199,6 +201,7 @@ report_pi() const {
     << "  force textures to power of 2: " << yesno(_force_power_2) << "\n"
     << "  aggressively clean the map directory: "
     << yesno(_aggressively_clean_mapdir) << "\n"
+    << "  omit everything: " << yesno(_omit_everything) << "\n"
     << "  round UV area: " << yesno(_round_uvs) << "\n";
   if (_round_uvs) {
     cout << "  round UV area to nearest " << _round_unit << " with fuzz "
@@ -996,6 +999,7 @@ write_datagram(BamWriter *writer, Datagram &datagram) {
   datagram.add_float64(_background[3]);
   datagram.add_int32(_margin);
   datagram.add_bool(_omit_solitary);
+  datagram.add_bool(_omit_everything);
   datagram.add_float64(_coverage_threshold);
   datagram.add_bool(_force_power_2);
   datagram.add_bool(_aggressively_clean_mapdir);
@@ -1144,6 +1148,9 @@ fillin(DatagramIterator &scan, BamReader *manager) {
   }
   _margin = scan.get_int32();
   _omit_solitary = scan.get_bool();
+  if (_read_pi_version >= 14) {
+    _omit_everything = scan.get_bool();
+  }
   _coverage_threshold = scan.get_float64();
   _force_power_2 = scan.get_bool();
   _aggressively_clean_mapdir = scan.get_bool();
diff --git a/pandatool/src/palettizer/palettizer.h b/pandatool/src/palettizer/palettizer.h
index 7135683eda..3b801bc278 100644
--- a/pandatool/src/palettizer/palettizer.h
+++ b/pandatool/src/palettizer/palettizer.h
@@ -112,6 +112,7 @@ public:
   Colord _background;
   int _margin;
   bool _omit_solitary;
+  bool _omit_everything;
   double _coverage_threshold;
   bool _force_power_2;
   bool _aggressively_clean_mapdir;
diff --git a/pandatool/src/palettizer/texturePlacement.cxx b/pandatool/src/palettizer/texturePlacement.cxx
index ca80169553..cf3a660d42 100644
--- a/pandatool/src/palettizer/texturePlacement.cxx
+++ b/pandatool/src/palettizer/texturePlacement.cxx
@@ -336,7 +336,13 @@ determine_size() {
     force_replace();
     _omit_reason = OR_size;
 
+  } else if (pal->_omit_everything) {
+    // If we're omitting everything, omit everything.
+    force_replace();
+    _omit_reason = OR_default_omit;
+
   } else if (_omit_reason == OR_omitted ||
+             _omit_reason == OR_default_omit ||
              _omit_reason == OR_size ||
              _omit_reason == OR_coverage ||
              _omit_reason == OR_unknown) {