Plane renders on top of particles

Help Shaders
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1

Godot Version

Godot 4.3

Question

image
image842×388 63.1 KB

Front view

image
image941×418 70.4 KB

Back view

The back side of the transparent plane (waterfall) renders on top of the particles instead of behind them. This issue only happens when the waterfall has transparency.
image
This is without transparency

Shader code:

shader_type spatial;

render_mode blend_mix, specular_schlick_ggx, cull_disabled;

uniform vec4 light_color : source_color;
uniform vec4 dark_color : source_color;

uniform sampler2D water_tex;
uniform sampler2D noise_tex;
uniform sampler2D normal_tex;

uniform float displ_amount = 0.02;
uniform float speed = 1.0;
uniform float roughness = 0.1;

uniform vec2 strength = vec2(0.25, 0.5);
uniform vec2 frequency = vec2(3.0, 2.5);
uniform vec2 time_factor = vec2(5.0, 4.0);

float height(vec2 pos, float time) {
	return (strength.y * sin(pos.y * frequency.y + time * time_factor.y)) + (strength.x * sin(pos.x * frequency.x + time * time_factor.x));
}

void vertex() {
	VERTEX.y += height(VERTEX.yz, TIME);
}

void fragment() {
	
	vec2 displ = texture(water_tex, UV - TIME / 8.0).xy;
	displ = (displ * 2.0 - 1.0) * displ_amount;
	
	float noise = texture(noise_tex, vec2(UV.x, UV.y / 4.0 - TIME / 4.0) + displ).x;
	noise = floor(noise * 4.0) / 4.0;
	
	vec4 col = mix(dark_color, light_color, noise);
	
	vec2 uv_movement = UV;
	uv_movement -= vec2(0.0, 1.0) * TIME * speed;
	
	ALBEDO = col.rgb;
	ALPHA = texture(water_tex, uv_movement).a * col.a;
	NORMAL_MAP = texture(normal_tex, uv_movement).rgb;
	ROUGHNESS = roughness;
}

It’s not really an urgent fix it’s just bothering me and idk how to fix it, thanks in advance.