Overhauled texture handling

pandatool/src/maxegg/maxOptionsDialog.cxx

@@ -10,6 +10,7 @@
 
 //Disable the forcing int to true or false performance warning
 #pragma warning(disable: 4800)
+#include "pathStore.h"
 
 void SetICustEdit(HWND wnd, int nIDDlgItem, char *text)
 { 
@@ -234,6 +235,7 @@ MaxEggOptions::MaxEggOptions() {
     _file_name[0]=0;
     _short_name[0]=0;
     _path_replace = new PathReplace;
+    _path_replace->_path_store = PS_relative;
     _export_whole_scene = true;
 }
 
@@ -551,6 +553,7 @@ bool MaxOptionsDialog::UpdateFromUI(HWND hWnd) {
   _anim_type = newAnimType;
   _double_sided = IsDlgButtonChecked(hWnd, IDC_CHECK1);
   _export_whole_scene = IsDlgButtonChecked(hWnd, IDC_EXPORT_ALL);
+
   return true;
 }
 

pandatool/src/maxegg/maxOptionsDialog.h

@@ -12,11 +12,6 @@
 
 #pragma conform(forScope, off)
 
-//Includes & Definitions
-
-#define ME Logger::ST_MAP_ME_TO_APP_SPECIFIC_SYSTEM6
-#define MNEG Logger::ST_MAP_ME_TO_APP_SPECIFIC_SYSTEM2
-#define MNEG_GEOMETRY_GENERATION Logger::ST_MAP_ME_TO_APP_SPECIFIC_SYSTEM3
 
 /* Externed Globals */
 extern HINSTANCE hInstance;

pandatool/src/maxegg/maxToEggConverter.cxx

@@ -58,6 +58,9 @@ bool MaxToEggConverter::convert(MaxEggOptions *options) {
 
     _options = options;
 
+    Filename fn = Filename::from_os_specific(_options->_file_name);
+    _options->_path_replace->_path_directory = fn.get_dirname();
+
     _egg_data = new EggData;
     if (_egg_data->get_coordinate_system() == CS_default) {
         _egg_data->set_coordinate_system(CS_zup_right);
@@ -824,134 +827,143 @@ get_vertex_weights(INode *max_node, EggVertexPool *vpool) {
     }
 }
 
+
 ////////////////////////////////////////////////////////////////////
-//     Function: MaxToEggConverter::set_material_attributes
+//     Function: MaxToEggConverter::get_material_textures
 //       Access: Private
-//  Description: Applies the known material attributes to the indicated
-//               egg primitive.
+//  Description: Converts a Max material into a set of Panda textures
+//               and a primitive color.
 ////////////////////////////////////////////////////////////////////
-void MaxToEggConverter::
-set_material_attributes(EggPrimitive &primitive, Mtl *maxMaterial, Face *face) {
+const MaxToEggConverter::PandaMaterial &MaxToEggConverter::
+get_material_textures(StdMat *maxMaterial) {
+
+    MaterialMap::iterator it = _material_map.find(maxMaterial);
+    if (it != _material_map.end()) {
+        return (*it).second;
+    }
+
+    PandaMaterial &pandaMat = _material_map[maxMaterial];
+    pandaMat._color = Colorf(1,1,1,1);
+
+    Texmap *diffuseTexmap;
+    Texmap *transTexmap;
     Bitmap *diffuseBitmap;
     BitmapTex *diffuseBitmapTex;
     BitmapTex *transBitmapTex;
-    //  Mtl *maxMaterial;
-    StdMat *maxStandardMaterial;
-    Texmap *diffuseTexmap;
-    Texmap *transTexmap;
-    EggTexture *myEggTexture = null;
-    string outString;
-    string outHandle;
     bool has_diffuse_texture = false;
     bool has_trans_texture = false;
-    
     Point3 diffuseColor = Point3(1, 1, 1);
 
-    //First, get the material data associated with this node.
-    if ( !maxMaterial ) {
-        return;
+    // Access the Diffuse map and see if it's a Bitmap texture
+    diffuseTexmap = maxMaterial->GetSubTexmap(ID_DI);
+    if (diffuseTexmap && (diffuseTexmap->ClassID() == Class_ID(BMTEX_CLASS_ID, 0))) {
+        has_diffuse_texture = true;
+        diffuseBitmapTex = (BitmapTex *) diffuseTexmap;
     }
 
-    //Now, determine wether it's a standard or multi material
-    if ( maxMaterial->ClassID() == Class_ID(DMTL_CLASS_ID, 0 )) {
-        maxStandardMaterial = (StdMat *)maxMaterial;
-
-        // Access the Diffuse map and see if it's a Bitmap texture
-        diffuseTexmap = maxMaterial->GetSubTexmap(ID_DI);
-        if (diffuseTexmap && (diffuseTexmap->ClassID() == Class_ID(BMTEX_CLASS_ID, 0))) {
-            has_diffuse_texture = true;
-            diffuseBitmapTex = (BitmapTex *) diffuseTexmap;
-        }
-
-        // Access the Opacity map and see if it's a Bitmap texture
-        transTexmap = maxMaterial->GetSubTexmap(ID_OP);
-        if (transTexmap && (transTexmap->ClassID() == Class_ID(BMTEX_CLASS_ID, 0))) {
-            has_trans_texture = true;
-            transBitmapTex = (BitmapTex *) transTexmap;
-        }
-
-        if (has_diffuse_texture || has_trans_texture) {
-            ostringstream name_strm;
-            name_strm << "Tex" << ++_cur_tref;
-            EggTexture tex(name_strm.str(), "");
-      
-            if (has_diffuse_texture) {
-                // It is! 
-                Filename filename = Filename::from_os_specific(diffuseBitmapTex->GetMapName());
-                Filename fullpath, outpath;
-                _options->_path_replace->full_convert_path(filename, get_texture_path(),
-                                                           fullpath, outpath);
-                tex.set_filename(outpath);
-                tex.set_fullpath(fullpath);
-                apply_texture_properties(tex, maxStandardMaterial);
-                // *** Must add stuff here for looking for transparencies
-                diffuseBitmap = diffuseBitmapTex->GetBitmap(0);
-                //Query some parameters of the bitmap to get the format option.
-                if ( has_trans_texture ) {
-                    tex.set_format(EggTexture::F_rgba);
-                    if (stricmp(diffuseBitmapTex->GetMapName(),
-                                transBitmapTex->GetMapName()) == 0) {
-                        // nothing more needs to be done
-                    } else {
-                        filename = Filename::from_os_specific(transBitmapTex->GetMapName());
-                        _options->_path_replace->full_convert_path(filename, get_texture_path(),
-                                                                   fullpath, outpath);
-                        tex.set_alpha_filename(outpath);
-                        tex.set_alpha_fullpath(fullpath);
-                    }
+    // Access the Opacity map and see if it's a Bitmap texture
+    transTexmap = maxMaterial->GetSubTexmap(ID_OP);
+    if (transTexmap && (transTexmap->ClassID() == Class_ID(BMTEX_CLASS_ID, 0))) {
+        has_trans_texture = true;
+        transBitmapTex = (BitmapTex *) transTexmap;
+    }
+    
+    if (has_diffuse_texture || has_trans_texture) {
+        ostringstream name_strm;
+        name_strm << "Tex" << ++_cur_tref;
+        EggTexture tex(name_strm.str(), "");
+        
+        if (has_diffuse_texture) {
+            // It is! 
+            Filename filename = Filename::from_os_specific(diffuseBitmapTex->GetMapName());
+            Filename fullpath, outpath;
+            _options->_path_replace->full_convert_path(filename, get_texture_path(),
+                                                       fullpath, outpath);
+            tex.set_filename(outpath);
+            tex.set_fullpath(fullpath);
+            apply_texture_properties(tex, maxMaterial);
+            // *** Must add stuff here for looking for transparencies
+            diffuseBitmap = diffuseBitmapTex->GetBitmap(0);
+            //Query some parameters of the bitmap to get the format option.
+            if ( has_trans_texture ) {
+                tex.set_format(EggTexture::F_rgba);
+                if (stricmp(diffuseBitmapTex->GetMapName(),
+                            transBitmapTex->GetMapName()) == 0) {
+                    // nothing more needs to be done
                 } else {
-                    if ( diffuseBitmap && diffuseBitmap->HasAlpha()) {
-                        tex.set_format(EggTexture::F_rgba);
-                    } else {
-                        tex.set_format(EggTexture::F_rgb);
-                    }
+                    filename = Filename::from_os_specific(transBitmapTex->GetMapName());
+                    _options->_path_replace->full_convert_path(filename, get_texture_path(),
+                                                               fullpath, outpath);
+                    tex.set_alpha_filename(outpath);
+                    tex.set_alpha_fullpath(fullpath);
                 }
             } else {
-                // We have a texture on transparency only.  Apply it as the
-                // primary filename, and set the format accordingly.
-                Filename filename = Filename::from_os_specific(transBitmapTex->GetMapName());
-                Filename fullpath, outpath;
-                _options->_path_replace->full_convert_path(filename, get_texture_path(),
-                                                           fullpath, outpath);
-                tex.set_filename(outpath);
-                tex.set_fullpath(fullpath);
-                tex.set_format(EggTexture::F_alpha);
-                apply_texture_properties(tex, maxStandardMaterial);
+                if ( diffuseBitmap && diffuseBitmap->HasAlpha()) {
+                    tex.set_format(EggTexture::F_rgba);
+                } else {
+                    tex.set_format(EggTexture::F_rgb);
+                }
             }
-            EggTexture *new_tex =
-                _textures.create_unique_texture(tex, ~EggTexture::E_tref_name);
-      
-            primitive.set_texture(new_tex);
+        } else {
+            // We have a texture on transparency only.  Apply it as the
+            // primary filename, and set the format accordingly.
+            Filename filename = Filename::from_os_specific(transBitmapTex->GetMapName());
+            Filename fullpath, outpath;
+            _options->_path_replace->full_convert_path(filename, get_texture_path(),
+                                                       fullpath, outpath);
+            tex.set_filename(outpath);
+            tex.set_fullpath(fullpath);
+            tex.set_format(EggTexture::F_alpha);
+            apply_texture_properties(tex, maxMaterial);
         }
+        EggTexture *new_tex =
+            _textures.create_unique_texture(tex, ~EggTexture::E_tref_name);
+        
+        pandaMat._texture_list.push_back(new_tex);
         
-        // Also apply an overall color to the primitive.
-        Colorf rgba(1.0f, 1.0f, 1.0f, 1.0f);
-
         // The existence of a texture on either color channel completely
         // replaces the corresponding flat color.
         if (!has_diffuse_texture) {
             // Get the default diffuse color of the material without the texture map
-            diffuseColor = Point3(maxMaterial->GetDiffuse());
-            rgba[0] = diffuseColor.x;
-            rgba[1] = diffuseColor.y;
-            rgba[2] = diffuseColor.z;
+            diffuseColor = Point3(maxMaterial->GetDiffuse(0));
+            pandaMat._color[0] = diffuseColor.x;
+            pandaMat._color[1] = diffuseColor.y;
+            pandaMat._color[2] = diffuseColor.z;
         }
         if (!has_trans_texture) {
             // *** Figure out how to actually get the opacity here
-            rgba[3] = maxStandardMaterial->GetOpacity(_current_frame * GetTicksPerFrame());
+            pandaMat._color[3] = maxMaterial->GetOpacity(_current_frame * GetTicksPerFrame());
         }
-
-        // *** May need color gain, but I don't know what it is
-        /*
-        // But the color gain always gets applied.
-        rgba[0] *= color_def._color_gain[0];
-        rgba[1] *= color_def._color_gain[1];
-        rgba[2] *= color_def._color_gain[2];
-        rgba[3] *= color_def._color_gain[3];
-        */
-
-        primitive.set_color(rgba);
+    }
+    return pandaMat;
+}
+        
+////////////////////////////////////////////////////////////////////
+//     Function: MaxToEggConverter::set_material_attributes
+//       Access: Private
+//  Description: Applies the known material attributes to the indicated
+//               egg primitive.
+////////////////////////////////////////////////////////////////////
+void MaxToEggConverter::
+set_material_attributes(EggPrimitive &primitive, Mtl *maxMaterial, Face *face) {
+    //  Mtl *maxMaterial;
+    StdMat *maxStandardMaterial;
+    EggTexture *myEggTexture = null;
+    string outString;
+    string outHandle;
     
+    //First, get the material data associated with this node.
+    if ( !maxMaterial ) {
+        return;
+    }
+
+    //Now, determine wether it's a standard or multi material
+    if ( maxMaterial->ClassID() == Class_ID(DMTL_CLASS_ID, 0 )) {
+        const PandaMaterial &pmat = get_material_textures((StdMat *)maxMaterial);
+        for (int i=0; i<pmat._texture_list.size(); i++) {
+            primitive.set_texture(pmat._texture_list[i]);
+        }
+        primitive.set_color(pmat._color);
     } else if ( maxMaterial->ClassID() == Class_ID(MULTI_CLASS_ID, 0 )) {
         // It's a multi-material.  Find the submaterial for this face.
         // and call set_material_attributes again on the submaterial.

pandatool/src/maxegg/maxToEggConverter.h

@@ -45,6 +45,11 @@ class MaxToEggConverter {
     bool convert(MaxEggOptions *options);
     
  private:
+    struct PandaMaterial {
+        std::vector<EggTexture*> _texture_list;
+        Colorf _color;
+    };
+    typedef std::map<StdMat*,PandaMaterial> MaterialMap;
     MaxEggOptions    *_options;
     int               _current_frame;
     PT(EggData)       _egg_data;
@@ -52,6 +57,7 @@ class MaxToEggConverter {
     MaxNodeTree       _tree;
     int               _cur_tref;
     EggTextureCollection _textures;
+    MaterialMap       _material_map;
     
     void reset();
 
@@ -83,6 +89,8 @@ class MaxToEggConverter {
     
     void set_material_attributes(EggPrimitive &primitive, Mtl *maxMaterial, Face *face);
     
+    const PandaMaterial &get_material_textures(StdMat *mtl);
+
     void apply_texture_properties(EggTexture &tex, 
                                   StdMat *maxMaterial);
     bool reparent_decals(EggGroupNode *egg_parent);