Basic displacement in RenderMan.

May 28, 2012

- Select the object’s shape node in the Attribute Editor and then go to Attribute -> RenderMan -> Add Sudvision Scheme. This will create a smooth surface.

- Load your displacement texture in the Hypershade.
– Play with the Alpha Gain and Alpha Offset to scale the image.
– Alpha Offset should be half negative than Alpha Gain. So if Alpha Gain is 2 Alpha Offset should be -1

- Drag the displacement texture on to the displacement material in the shading group attributes.
– This will create a displacement node.

- Select the displacement node and go to Attributes -> RenderMan -> Add Displacement Attribues.
– Set the displacement bound to something similar to your highest displacement value.

- If you are using ray trace rendering you need to add ray traced attributes to your displacement.
– Select your shape node and go to Attribute -> RenderMan -> Manage attributes and select TraceDisplacement.

- Turn the shading rate down to increase the quality of your displacement. You can add a RenderMan attribute to control this instead change the global render options, you’ll save a lot of render time.

About these ads

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

Join 81 other followers

%d bloggers like this: