How can I make this custom shader support shadows?

Questions & Answers
1

Daniel Zeller wrote this brilliant low poly shader: GitHub - danielzeller/Lowpoly-Water-Unity: Low poly water with edge/shore blend. Similar to the awesome water in Monument Valley. (a sample project can be downloaded from that link), and I have been trying to have this shader additionally support shadows but to no avail. I have so far tried adding:

Tags {"Queue"="Transparent" "LightMode" = "ForwardBase"}
#pragma multi_compile_fwdadd_fullshadows
#include "Lighting.cginc"
#include "AutoLight.cginc"

in struct v2f {}:

 LIGHTING_COORDS(9,10)

in v2f vert() {}:

 TRANSFER_VERTEX_TO_FRAGMENT(o);

and in half4 frag() {}:

float attenuation = LIGHT_ATTENUATION(i);

If anyone could please give me any help with this it would be much appreciated!

Thanks!

2

Objects in the Transparent Queue (almost always) cannot receive shadows due to the way they are rendered. The only real way you could have a transparent object receive shadows would be to have it use a GrabPass, which is not guaranteed to work, be efficient or produce an outcome without problems of its own.