Overhaul wrapped lighting

Now:
* k=0   -> lambertian
* k=0.5 -> half lambertian
* k=1.0 -> flat

All three points should be energy conserving, but I haven't done the
actual analysis yet.

1 files changed, 5 insertions, 2 deletions

diff --git a/shatter_wave.cginc b/shatter_wave.cginc
index f86a6ac..d65741f 100644
--- a/shatter_wave.cginc
+++ b/shatter_wave.cginc
@@ -15,7 +15,7 @@ void shatterWaveVert(inout float3 objPos, float3 objNormal, float3 objTangent) {
   float3 wave_axis2 = normalize(_Shatter_Wave_Direction2);

   float3 wave_axis3 = normalize(_Shatter_Wave_Direction3);

   float4x3 wave_axes = float4x3(wave_axis0, wave_axis1, wave_axis2, wave_axis3);

-  

+

   float4 projDots = mul(wave_axes, objPos);

   // Equivalent code:

   // float4 projDots = float4(

@@ -24,7 +24,7 @@ void shatterWaveVert(inout float3 objPos, float3 objNormal, float3 objTangent) {
   //   dot(objPos, wave_axis2),

   //   dot(objPos, wave_axis3)

   // );

-  

+

   float4x3 objPos_proj = float4x3(

     projDots.x * wave_axis0,

     projDots.y * wave_axis1,

@@ -67,6 +67,9 @@ void shatterWaveVert(inout float3 objPos, float3 objNormal, float3 objTangent) {
         _Shatter_Wave_Time_Offset * _Shatter_Wave_Period -

         _Time[0] * _Shatter_Wave_Speed * .3,

       _Shatter_Wave_Period) - _Shatter_Wave_Period * 0.5;

+  } else {

+    wave_t = _Time[0] * _Shatter_Wave_Speed;

+    wave_t = fmod(wave_t + _Shatter_Wave_Time_Offset * _Shatter_Wave_Period, _Shatter_Wave_Period) - _Shatter_Wave_Period * 0.5;

   }

 #else

   float4 wave_t = _Time[0] * _Shatter_Wave_Speed;