type	The class type of the component that is animated.
propertyName	The name or path to the property being animated.
curve	The animation curve.
relativePath	Path to the game object this curve applies to. relativePath is formatted similar to a pathname, e.g. "rootspineleftArm". If relativePath is empty it refers to the game object the animation clip is attached to.

Assigns the curve to animate a specific property.

If curve is null the curve will be removed. If a curve already exists for that property, it will be replaced.

Common names are: "localPosition.x", "localPosition.y", "localPosition.z", "localRotation.x", "localRotation.y", "localRotation.z", "localRotation.w" "localScale.x", "localScale.y", "localScale.z".

	// Animates the x coordinate of a transform position
	function Start () {
		// Create the curve
		var curve : AnimationCurve = AnimationCurve.Linear(0, 1, 2, 3);
		// Create the clip with the curve
		var clip : AnimationClip = new AnimationClip();
		clip.SetCurve("", Transform, "localPosition.x", curve);
		
		// Add and play the clip
		animation.AddClip(clip, "test");
		animation.Play("test");
	}
	@script RequireComponent(Animation)

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(Animation))]
public class Example : MonoBehaviour {
    void Start() {
        AnimationCurve curve = AnimationCurve.Linear(0, 1, 2, 3);
        AnimationClip clip = new AnimationClip();
        clip.SetCurve("", typeof(Transform), "localPosition.x", curve);
        animation.AddClip(clip, "test");
        animation.Play("test");
    }
}

import UnityEngine
import System.Collections

[RequireComponent(typeof(Animation))]
public class Example(MonoBehaviour):

	def Start() as void:
		curve as AnimationCurve = AnimationCurve.Linear(0, 1, 2, 3)
		clip as AnimationClip = AnimationClip()
		clip.SetCurve('', typeof(Transform), 'localPosition.x', curve)
		animation.AddClip(clip, 'test')
		animation.Play('test')

Material properties can be animated using the property name exported in the shader. Common property names are: "_MainTex", "_BumpMap", "_Color", "_SpecColor", "_Emission". How to animate different material property types:

Float properties: "PropertyName"

__Vector4 properties:__ "PropertyName.x", "PropertyName.y", "PropertyName.z", "PropertyName.w"

__Color properties:__ "PropertyName.r", "PropertyName.g", "PropertyName.b", "PropertyName.a"

UV Rotation properties: "PropertyName.rotation"

UV Offset and scale: "PropertyName.offset.x", "PropertyName.offset.y", "PropertyName.scale.x", "PropertyName.scale.y"

To index into multiple materials on the same renderer you can prefix the attribute like this: "[1]._MainTex.offset.y"

See Also: ClearCurves function, AnimationCurve class.

	// Animate color's alpha and main texture's horizontal offset.
	function Start () {
		var clip = new AnimationClip ();
		clip.SetCurve ("", Material, "_Color.a",
			AnimationCurve (Keyframe(0, 0, 0, 0), Keyframe(1, 1, 0, 0)));
		clip.SetCurve ("", Material, "_MainTex.offset.x",
			AnimationCurve.Linear(0, 1, 2, 3));
		animation.AddClip (clip, clip.name);
		animation.Play(clip.name);
	}
	@script RequireComponent(Animation)

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(Animation))]
public class Example : MonoBehaviour {
    void Start() {
        AnimationClip clip = new AnimationClip();
        clip.SetCurve("", typeof(Material), "_Color.a", new AnimationCurve(new Keyframe(0, 0, 0, 0), new Keyframe(1, 1, 0, 0)));
        clip.SetCurve("", typeof(Material), "_MainTex.offset.x", AnimationCurve.Linear(0, 1, 2, 3));
        animation.AddClip(clip, clip.name);
        animation.Play(clip.name);
    }
}

import UnityEngine
import System.Collections

[RequireComponent(typeof(Animation))]
public class Example(MonoBehaviour):

	def Start() as void:
		clip as AnimationClip = AnimationClip()
		clip.SetCurve('', typeof(Material), '_Color.a', AnimationCurve(Keyframe(0, 0, 0, 0), Keyframe(1, 1, 0, 0)))
		clip.SetCurve('', typeof(Material), '_MainTex.offset.x', AnimationCurve.Linear(0, 1, 2, 3))
		animation.AddClip(clip, clip.name)
		animation.Play(clip.name)