Jump to content

What the return type of a BSFD function in rendertime?


wandersonp

Recommended Posts

http://www.sidefx.com/docs/houdini14.0/render/understanding

 

The documentation on Mantra and VEX:

 

In PBR, the surface shader is responsible for computing the BSDF of the surface.

 

bsdf is a VEX datatype

 

A BSDF is a function that takes the incoming light direction and a viewing direction, and returns the magnitude of the reflected light given that “bounce”.

 

http://www.sidefx.com/docs/houdini14.0/render/understanding

http://www.sidefx.com/docs/houdini14.0/vex/pbr

http://www.sidefx.com/docs/houdini14.0/vex/functions/cvex_bsdf

 

As to what is the internal representation of the bsdf datatype we don't know for sure. It's probably a struct that contains function pointers and a field with data (vectors, etc.) look at cvex_bsdf.

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.

×
×
  • Create New...