[Bf-blender-cvs] [af8e8e2ae5c] temp-usd-prev-export2: USD material export code cleanup.

[Michael Kowalski]

Commit: af8e8e2ae5ca28c4e03ce4e14fb15990f720684a
Author: Michael Kowalski
Date:   Fri Jan 14 20:14:47 2022 -0500
Branches: temp-usd-prev-export2
https://developer.blender.org/rBaf8e8e2ae5ca28c4e03ce4e14fb15990f720684a

USD material export code cleanup.

Fixed comment and removed unnecessary check for
empty string.

===================================================================

M	source/blender/io/usd/intern/usd_writer_material.cc

===================================================================

diff --git a/source/blender/io/usd/intern/usd_writer_material.cc b/source/blender/io/usd/intern/usd_writer_material.cc
index c149e0873b2..da60783cd59 100644
--- a/source/blender/io/usd/intern/usd_writer_material.cc
+++ b/source/blender/io/usd/intern/usd_writer_material.cc
@@ -542,10 +542,6 @@ static pxr::UsdShadeShader create_usd_preview_shader(const USDExporterContext &u
 
 static std::string get_tex_image_asset_path(Image *ima)
 {
-  if (strlen(ima->filepath) == 0) {
-    return "";
-  }
-
   char filepath[FILE_MAX];
   get_absolute_path(ima, filepath);
 
@@ -557,7 +553,8 @@ static std::string get_tex_image_asset_path(Image *ima)
  * in the same directory as the USD file, depending on the export parameters.
  * The filename is typically the image filepath but might also be automatically
  * generated based on the image name for in-memory textures when exporting textures.
- * This function may return an empty string if no asset path could be determined. */
+ * This function may return an empty string if the image does not have a filepath
+ * assigned and no asset path could be determined. */
 static std::string get_tex_image_asset_path(bNode *node,
                                             const pxr::UsdStageRefPtr stage,
                                             const USDExportParams &export_params)