Unity - Scripting API: Material.SetMatrix

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Declaration

public void SetMatrix(string name, Matrix4x4 value);

Declaration

public void SetMatrix(int nameID, Matrix4x4 value);

Parameters

Parameter	Description
nameID	Property name ID, use Shader.PropertyToID to get it.
name	Property name, e.g. "_CubemapRotation".
value	Matrix value to set.

Description

Sets a named matrix for the shader.

// Use this shader on an object together with the above example script.
// The shader transforms texture coordinates with a matrix set from a script.
Shader "RotatingTexture"
{
    Properties
    {
        _MainTex ("Base (RGB)", 2D) = "white" {}
    }
    SubShader
    {
        Pass
        {
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag            struct v2f
            {
                float2 uv : TEXCOORD0;
                float4 pos : SV_POSITION;
            };
            float4x4 _TextureRotation;
            v2f vert (float4 pos : POSITION, float2 uv : TEXCOORD0)
            {
                v2f o;
                o.pos = UnityObjectToClipPos(pos);
                o.uv = mul(_TextureRotation, float4(uv,0,1)).xy;
                return o;
            }
            sampler2D _MainTex;
            fixed4 frag (v2f i) : SV_Target
            {
                return tex2D(_MainTex, i.uv);
            }
            ENDCG
        }
    }
}