Visual Shader causes error whenever Godot editor restarted

[blackears]

Tested versions

v4.3.stable.official [77dcf97]

System information

Godot v4.3.stable - Windows 10.0.19045 - Vulkan (Mobile) - dedicated AMD FirePro W2100 (Advanced Micro Devices, Inc.; 27.20.21026.2006) - Intel(R) Core(TM) i5-7600 CPU @ 3.50GHz (4 Threads)

Issue description

This visual shader is causing a compilation error to be printed to screen every time my project is restarted. It does not seem to affect rendering.

https://forum.godotengine.org/t/how-do-i-track-down-this-error/98336/4

Godot Engine v4.3.stable.official (c) 2007-present Juan Linietsky, Ariel Manzur & Godot Contributors.
  :9 - Unknown identifier in expression: 'VIEW'.
  Shader compilation failed.
  :14 - Unknown identifier in expression: 'VIEW'.
  Shader compilation failed.
  :15 - Unknown identifier in expression: 'VIEW'.
  Shader compilation failed.
--Main Shader--
    1 | shader_type canvas_item;
    2 | 
    3 | 
    4 | 
    5 | 
    6 | void fragment() {
    7 | 
    8 |  float n_in3p3 = 1.00000;
E   9->  float n_out3p0 = pow(1.0 - clamp(dot(NORMAL, VIEW), 0.0, 1.0), n_in3p3);
   10 | 
   11 | 
   12 |  COLOR.rgb = vec3(n_out3p0);
   13 | }
   14 | 
--Main Shader--
    1 | shader_type canvas_item;
    2 | 
    3 | uniform sampler2D tex_frg_2 : source_color;
    4 | 
    5 | 
    6 | 
    7 | void fragment() {
    8 | 
    9 |  vec4 n_out2p0 = texture(tex_frg_2, UV);
   10 | 
   11 | 
   12 | 
   13 |  float n_in3p3 = 1.00000;
E  14->  float n_out3p0 = pow(1.0 - clamp(dot(NORMAL, VIEW), 0.0, 1.0), n_in3p3);
   15 | 
   16 | 
   17 | 
   18 |  float n_out5p0 = 1.0 - n_out3p0;
   19 | 
   20 | 
   21 | 
   22 |  float n_out4p0 = n_out2p0.x * n_out5p0;
   23 | 
   24 | 
   25 |  COLOR.rgb = vec3(n_out4p0);
   26 | }
   27 | 
--Main Shader--
    1 | shader_type canvas_item;
    2 | 
    3 | uniform sampler2D tex_frg_2 : source_color;
    4 | uniform sampler2D curve_frg_7 : repeat_disable;
    5 | 
    6 | 
    7 | 
    8 | void fragment() {
    9 | 
   10 |  vec4 n_out2p0 = texture(tex_frg_2, UV);
   11 | 
   12 | 
   13 | 
   14 |  float n_in3p3 = 1.00000;
E  15->  float n_out3p0 = pow(1.0 - clamp(dot(NORMAL, VIEW), 0.0, 1.0), n_in3p3);
   16 | 
   17 | 
   18 | 
   19 |  float n_out5p0 = 1.0 - n_out3p0;
   20 | 
   21 | 
   22 | 
   23 |  float n_out4p0 = n_out2p0.x * n_out5p0;
   24 | 
   25 | 
   26 | 
   27 |  float n_out7p0 = texture(curve_frg_7, vec2(n_out4p0)).r;
   28 | 
   29 | 
   30 |  COLOR.rgb = vec3(n_out7p0);
   31 | }
   32 | 
VSRerouteNode size: (32, 32)

Steps to reproduce

Run the attached project. Error message should be printed when it is opened.

Minimal reproduction project (MRP)

fresnel_fireball.zip

[Chaosus]

This is because the canvas item shader (used in node preview) has no clue about VIEW built-in from Fresnel node output.