How to make sprite visibile when light DON'T hit

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:bust_in_silhouette: Asked By RedCube

I have tried for several hours to find how to make a sprite visible if not the light is hitting it. All I have come across is how to make it visible when light is hitting it.
if(AT_LIGHT_PASS==false)
COLOR = vec4(texture(TEXTURE, UV).rgb, 0.0);
}
I found out that this give me exactly what I don’t want but this:
if(AT_LIGHT_PASS==true)
COLOR = vec4(texture(TEXTURE, UV).rgb, 0.0);
}
don’t do anything at all.

I have been trying to learn shaders in the past but stopped because it’s so complex and there is almost no learning resources, do you know of any?
Btw I am using it for tilemap
Thanks for your time. And especially thanks for you if you know the answer

2
:bust_in_silhouette: Reply From: theoddpaw

render_mode light_only;

put that at the 2nd line of the shader code