SupaLidlGame/Shaders/Flash.gdshader

shader_type canvas_item;

uniform vec4 color = vec4(1.0);
uniform float intensity : hint_range(0.0, 1.0) = 0.0;
uniform float alpha_modulate : hint_range(0.0, 1.0) = 1.0;

void fragment() {
    vec4 tex = texture(TEXTURE, UV);
    tex.rgb = mix(tex.rgb, color.rgb, intensity);
    COLOR = tex;
    COLOR.a *= alpha_modulate;
}