Question Wave Shader Not Working

I'm trying to make my first shader and wanted to make a simple wave shader using cos on the vertices.
Im following this tutorial:

The problem is when this shader is placed on a material on a quad it doesn't move at all.
Im aware 4 vertices isnt what i want but there should still be some movement right?
Anyway im not sure what to do so i would appreciate help.

Code (CSharp):

1. Shader "Custom/Waves" {
2.     Properties {
3.         _Color("Color", Color) = (1, 1, 1, 1)
4.         _WaveHeight("Height", Range(0,2)) = 1.0
5.         _Speed("Speed", Range(0,200)) = 100
6.     }
7.  
8.     SubShader{
9.         Tags{
10.             "RenderType" = "Opaque"
11.         }
12.  
13.         Pass {
14.             CGPROGRAM
15.  
16.             #pragma vertex VertexFunc
17.             #pragma fragment fragmentFunc
18.  
19.             float4 _Color;
20.             float _Height;
21.             float _Speed;
22.  
23.             struct vertexInput {
24.                 float4 vertex : POSITION;
25.             };
26.        
27.             struct vertexOutput {
28.                 float4 pos : SV_POSITION;
29.             };
30.  
31.             vertexOutput VertexFunc(vertexInput IN) {
32.                 vertexOutput o;
33.  
34.                 float4 worldPos = mul(unity_ObjectToWorld, IN.vertex);
35.  
36.                 float displacement = (cos(worldPos.y) + cos(worldPos.x + (_Speed * _Time)));
37.                 worldPos.y = worldPos.y + (displacement * _Height);
38.  
39.                 o.pos = mul(UNITY_MATRIX_VP, worldPos);
40.                 return o;
41.             }
42.  
43.             float4 fragmentFunc(vertexOutput IN) : COLOR {
44.                 return _Color;
45.             }
46.  
47.             ENDCG
48.         }
49.     }
50. }

 

_Time

is a

float4

value. If you use a

float4

value with

float

values, as you're doing above, then only the

.x

component is used.

_Time.x

is equivalent to

Time.timeSinceLevelLoad / 20f

in the game view when in play mode. That might be slow enough you're simply not seeing it move. Otherwise when not in play mode the game view does not (or infrequently) updates

_Time

.

You want to use

_Time.y

in most case, as that's the actual unmodified time.

If you're in the scene view,

_Time

has values unique to the scene view, and you need to have the Animated Materials option enabled for, well, materials to animate. Otherwise the

_Time

value the shader gets in the scene view is not updated.

 

I dont have the option to enable animated materials in that dropdown. Also im using the 3D template not URP if that makes any difference. Even using time.y nothing happens to during play mode.