Jump to content

Transform feedback


Rastar
 Share

Recommended Posts

Is it currently possible to use transform feedbacks with LE 3.2? If not, is there a chance this might be added? Maybe even in 3.3 rolleyes.gif ?

TFs would make the geometry and tessellation shaders even more valuable, and there are a number of very interesting algorithms especially for (guess what) terrain and ocean rendering that are making heavy use of them.

 

EDIT: Oh, and I would be happy with a pure experimental, fully undocumented and completely unsupported implementation wink.png

Link to comment
Share on other sites

It's more for doing the dynamic tessellation of grids in terrain and ocean rendering. It would render the vertices + specified attributes into a buffer that is stored on the GPU side. That way the mesh generation performed by the tessellation and/or geometry shaders wouldn't have to be redone from scratch every frame, but rather could be modified in subsequent frames to account for camera movements etc.

 

As an example, in this paper they are using transform feedbacks for exactly this purpose:

 

http://www.hindawi.com/journals/tswj/2014/979418/

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...