Importing 3D objects and create Mesh objects in OpenSim

 We can use 3D models created with external modeling programs such as Blender, 3D Studio Max, Maya, or Wings 3D. You’ll export these in Collada digital asset exchange format so that you’ll then be able to import them as meshes into OpenSim. 

First, let’s find out what Collada is. Collada (short for COLLAborative Design Activity) defines an open standard digital asset XML database schema for interactive 3D applications enabling the exchange of digital assets between applications without loss of information. Or, to put it more simply, Collada provides an application-independent schema for representing 3D objects. This means that you can create a model in, say, Blender, export it to Collada (as a .dae file, i.e. ‘Digital Asset Exchange’ format), and import it into, for example, OpenSim.

Finding Free Mesh objects on the internet



https://www.highend3d.com/3d-model/simple-bookcase-3d-model (Links to an external site.) 

There are several places where you can find 3d objects for free. You will have to register to their sites and search for free Collada objects in their database.  To do so just look for free Collada 3d models. 

List of places where you can find free 3d Models:

  1. https://www.highend3d.com/3d-model/simple-bookcase-3d-model (Links to an external site.) 
  2. https://free3d.com/3d-models/collada (Links to an external site.) 
  3. https://free3d.com/3d-model/black-dragon-rigged-and-game-ready-92023.html (Links to an external site.) 
  4. https://free3d.com/3d-model/professional-scene-with-coca-cola-bottle-57999.html (Links to an external site.) 
  5. https://www.turbosquid.com/Search/3D-Models/free/dae (Links to an external site.) 
  6. https://www.turbosquid.com/3d-models/colors-rubiks-3d-1608949 (Links to an external site.) 

 

Downloading a 3D object


  1. Go to https://www.turbosquid.com/3d-models/colors-rubiks-3d-1608949 (Links to an external site.). Register and download the Rubiks Cube. You will get a zip file that you have to unpack. 

2. Unpack the file and you will get a .dae file (3d object)  and a .png file (texture)

Importing 3D objects and create Mesh objects in OpenSim

3. Choose Build > Upload > Mesh Model from your viewer menus, and select a Collada .dae file from your hard drive.


4. The following window will then appear:


5. You’ll probably want to change the model name to something meaningful. Go to the Physics tab, choose ‘Level of detail’—’medium or low’ should generally suffice. 


6. Now click ‘Calculate weights and fee’.  Finally, click ‘Upload’, and find your model in your Inventory.

  


7. Just drag it out and rezz it in world.

Uploading a texture to OpenSim

8. Choose Inventory > Upload > Image from your viewer menus, and select a texture .png file from your hard drive.


9. Choose Inventory > Textures > find the Image in your viewer menus.


10. Right-click your mouse on the object and select edit.


11. Choose texture > Upload > Image from your viewer menus. Finally, click ‘ok’.


References

  1. Mesh. Uploading mesh models to OpenSim  https://vorticism.wordpress.com/tutorials/mesh/ (Links to an external site.)     
  2. A short walkthrough of how to export a 3D model to Collada DAE format and to import the model into a 3D virtual environment. https://youtu.be/0lPrececnqQ (Links to an external site.) 
  3. The COLLADA Test Model Bank  http://ourbricks.com/khronos/colladarepository (Links to an external site.) http://ourbricks.com (Links to an external site.) 
  4. Google, Trimble 3D Warehouse http://sketchup.google.com/3dwarehouse/?hl=en&ct=lc&hl=en (Links to an external site.) 
  5. The Free 3D Models http://thefree3dmodels.com/stuff (select DAE from the pull-down menu)
  6. TurboSquid. Both free and paid models http://www.turbosquid.com/3d (Links to an external site.) 
  7. 3DVia. Both free and paid models http://www.3dvia.com/resources (Links to an external site.) 

https://free3d.com/3d-model/notebook-low-poly-version-57341.html (Links to an external site.) 

Comments

Post a Comment

Popular posts from this blog

Second Life MOOC - April 1 - 30, 2014

Image
Spread the word You’re invited to first Second Life MOOC of its kind on WizIQ on April 1. 2014. The theme of the MOOC is Learning and Connecting Online for Instruction and Learning using Second Life. ( click here to acces the course ). The MOOC will focus on connecting online for collaborative learning and teaching through Second Life. The live presentations will include the speakers’ reflective process on teaching and learning in fully online and blended learning formats. Second Life MOOC will also include courses for beginners and advanced Second Life participants. The courses will be asynchronous (Moodle) and synchronous (WizIQ & Second Life) with recordings on WizIQ, Google Drive, YouTube, and Vimeo. There will be three learning areas: WizIQ course area , Second Life, and Moodle for Teachers (M4T) Moodle website. The live online sessions and recordings, tutorials (courseware) and ongoing discussions (coursefeed) will be available in the WizIQ course area. Second Life Mo...
Read more

9th Annual Virtual Worlds Best Practices in Education March 9-12, 2016

Image
9th Annual Virtual Worlds Best Practices in Education will be held on March 9-12, 2016. This year's theme is Horizons. The VWBPE Conference is a completely virtual conference that is conducted using simulated environments. Participants experience the conference through a virtual reality type setting including conference rooms, theatres, exposition halls, meeting spaces, and other types of venues similar to a brick and mortar type conference. The conference is free to attend. The cost of the conference is covered by sponsorship and donations. Registration Now Open http://www.eventbrite.com/e/virtual-worlds-best-practices-in-education-conference-2016-tickets-19046273918 You can visit their site: http://vwbpe.org/ Facebook Group: https://www.facebook.com/groups/67701516968/ Twitter: https://twitter.com/vwbpe   #VWBPE16 #VWBPE Google + Community: https://plus.google.com/u/0/communities/104499189392001969204 Flickr: http://www.flickr.com/groups/vwbpe/ You Tube: ...
Read more

Virtual Worlds: Second Life

Image
Hello, there! It's been a while since  Pio's last post. She promises she will be sharing her experiences in virtual worlds again. This year we have several great events and many more adventures happening in Second Life, Kitely, Open Sim and other virtual worlds. WE were invited by Rob Howard the founder of EFLtalks to participate in a really interesting project called EFLtalks 10 in 10 for terms .  This project is about building a teacher's video glossary of day to day terminology that teachers and trainers use. EFLtalkers will be defining the terms as well as explaining why, where and where to use the concept in their teaching. This time, we are sharing a post on the state of the art of my favorite virtual world: Second Life and how it's used to teach and learn a new language. What are virtual worlds? So, let's get started by defining what virtual worlds are. Berns et al (2013) define VWs as 3-D immersive persistent environments where users’ graphica...
Read more