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Close Your name Your email Suggestion* Switch to Manual Declarationpublic void
SetMatrix(string
name,
Matrix4x4 value);
Declarationpublic 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. DescriptionSets a named matrix for the shader.
This is mostly used with custom shaders that need extra matrix parameters. Matrix parameters are not exposed in the material inspector, but can be set and queried with SetMatrix and GetMatrix from scripts.
Additional resources: GetMatrix, Materials, ShaderLab documentation, Shader.PropertyToID, Properties in Shader Programs.
// 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
}
}
}
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