MaterialPropertyBlock.AddMatrix

Description

Matrix4x4型のマテリアルプロパティを追加します

/nameID/ でこの関数を呼び出すほうが高速になります。もし、繰り返し同じ名前のプロパティを追加する場合は、 Shader.PropertyToIDを使用してプロパティ名のユニークIDを取得し、AddMatrixにIDを渡します。

	var rotateSpeed = 30;
	var texture : Texture;
	var aMesh : Mesh;

	// Create a new material with a shader
	// that rotates the texture. Texture rotation
	// is performed with a _Rotation matrix.
	var m : Material = new Material (
		"Shader \"Rotating Texture\" {" +
			"Properties { _MainTex (\"Base\", 2D) = \"white\" {} }" +
			"SubShader {" +
			"    Pass {" +
			"        Material { Diffuse (1,1,1,0) Ambient (1,1,1,0) }" +
			"        Lighting On" +
			"        SetTexture [_MainTex] {" +
			"            matrix [_Rotation]" +
			"            combine texture * primary double, texture" +
			"        }" +
			"    }" +
			"}" +
		"}"
	);
	m.mainTexture = texture;


	function Update() {
		var materialProperty : MaterialPropertyBlock = new MaterialPropertyBlock();
		// Construct a rotation matrix and set it for the shader
		var rot : Quaternion = Quaternion.Euler (0, 0, Time.time * rotateSpeed);
		var mtrx : Matrix4x4 = Matrix4x4.TRS (Vector3.zero, rot, Vector3(1,1,1) );

		// Update the rotation matrix.
		materialProperty.AddMatrix ("_Rotation", mtrx);
		Graphics.DrawMesh(aMesh, Vector3(-5,0,0), Quaternion.identity,
				  m, 0, null, 0, materialProperty);
	}