How to add an image in a specific area of the object in Cycles Render?

Question

I am trying to add an iris to the eye.

I go to Object Data / Vertex Groups/ and I click in + . I select the area where I want to put the iris.

I go to texture/material and I add my iris. and Blender put the iris in the whole eye.

I know I miss something but what?

Thanks a lot!

Possible duplicate of http://blender.stackexchange.com/review/suggested-edits/26865 — Dontwalk, Jun 02 '16 at 13:36
What you are missing is assigning the material. See this post: — , Jun 02 '16 at 14:10
Possible duplicate of Add different materials to different parts of a mesh? — Timaroberts, Jun 02 '16 at 17:53

score 0 · Accepted Answer · edited Mar 14 '17 at 09:14

Idle Chit-chat

Your title says "Cycles Render," but your screenshots are from Blender Internal. Also, in your last screenshot, you need to select 3D Viewport > Toolshelf > Edit > Shading: > Smooth for the eye to not be pixelated in the viewport render.

However, if you are going for realism, I would suggest switching to Cycles Render (much faster, newer, better, AND built for photorealism). So, this tutorial is for Cycles. This will be the final result:

Materials

I will use a sphere to represent the eye (smooth shading), and the following eye texture from Google (full size linked) in my demonstration.

With the sphere selected, go to the Materials tab in the Properties panel. + New a material to the sphere. Go into the Node editor, and use the setup shown.

Now, go to the sphere in the 3D Viewport. Tab into edit mode, Numpad 1 to front view, and Numpad 5 to orthographic view. Enter Face Select Mode. Select these faces:

Press U and select Project from View (Bounds). Split the screen into a 3D Viewport and a UV Image Editor by dragging the marks in the top-right corner to the left. Make sure you are still in edit mode. Open the image of the eye through the toolbar at the bottom of the UV Image Editor. The orange should already be aligned over the eye.

Final Notes

I added the nodes at the bottom to create red veins in the eye. It's more realistic.

Here is the finished .blend file:

Thanks @Shady. You are right I took the screeshots in Blender Render. — Meri, Jun 02 '16 at 14:12
@Meri You're welcome. Please consider accepting this answer if it helped you. — Shady Puck, Jun 02 '16 at 14:12
Hi @Shady please can you tell me where Multiply is in Note Editor? Thanks — Meri, Jun 02 '16 at 14:38
Sorry, yes I am going to accept. Thank you for your help. It is very useful. — Meri, Jun 02 '16 at 16:51

How to add an image in a specific area of the object in Cycles Render?

1 Answers1

Idle Chit-chat

Materials

Final Notes