Pulsing Glow Effect
It makes your object glow with a pulse, just add it as a next pass.
Shader code
shader_type spatial;
uniform sampler2D Noise;
uniform float time : hint_range(0.0, 1.0, 0.01);
uniform vec2 dir; // Direction that the Noisemap will scroll to
uniform vec3 emission;
uniform float alpha : hint_range(0.0, 1.0, 0.01);
uniform float freq : hint_range(0.0, 5.0, 0.01) = 1.0;
uniform float amp : hint_range(0.0, 5.0, 0.01) = 3.0;
uniform float offset : hint_range(0.0, 5.0, 0.01) = 2.21;
void fragment(){
vec2 uv = UV;
vec2 move = dir * time * TIME;
ALBEDO.rgb = texture(Noise, uv += move).rgb;
float pulse_color = sin((TIME * freq) * amp) + offset;
ALPHA = alpha;
//EMISSION = emission;
//go ahead and mess around with the values and see what suits the best, by default i set it to blue
EMISSION.b = pulse_color;
}


