message: Fix export of a single slice of a texture to DDS
diff: @@ -961,6 +961,9 @@ bool ReplayController::SaveTexture(const TextureSave &saveData, const char *path
  ddsData.subdata = &subdata[0];
  ddsData.cubemap = td.cubemap && numSlices == 6;
  + if(singleSlice)
  + ddsData.depth = ddsData.slices = 1;
  +
  success = write_dds_to_file(f, ddsData);
  }
  else if(sd.destType == FileType::BMP)
  