文件结构优化

Assets/VFX/Simple Toon/Shaders/STCore.cginc

@@ -0,0 +1,114 @@
+#ifndef STCORE_INCLUDED
+#define STCORE_INCLUDED
+
+#include "STFunctions.cginc"
+
+sampler2D _MainTex;
+float4 _MainTex_ST;
+
+float4 _Color;
+float4 _DarkColor;
+float _AmbientCol;
+float _ColIntense;
+float _ColBright;
+
+bool _Segmented;
+float _Steps;
+float _StpSmooth;
+float _Offset;
+
+bool _Clipped;
+float _MinLight;
+float _MaxLight;
+float _Lumin;
+
+float _MaxAtten;
+
+float4 _ShnColor;
+bool _ShnOverlap;
+float _ShnIntense;
+float _ShnRange;
+float _ShnSmooth;
+
+float Toon (float dot, fixed atten)
+{
+	float offset = clamp(_Offset, -1, 1);
+	float delta = _MaxLight - _MinLight;
+
+	//intense
+	float ints_pls = dot + offset;
+	float ints_max = 1.0 + offset;
+	float intense = clamp01(ints_pls / ints_max);
+
+	//lit
+	float step = 1.0 / floor(_Steps);
+	int lit_num = ceil(intense / step);
+	float lit = lit_num * step;
+
+	//smooth
+	float reduce_v = _Offset - 1.0;
+	float reduce_res = 1.0 - clamp01(reduce_v / 0.1);  //!v offset plus
+	float reduce = lit_num == 1 ? reduce_res : 1;
+
+	float smth_start = lit - step;
+	float smth_end = smth_start + step * _StpSmooth;
+
+	float smth_lrp = invLerp01(smth_end, smth_start, intense);
+	float smth_stp = smoothstep(smth_end, smth_start, intense, 0.);
+
+	float smooth_v = smoothlerp(smth_stp, smth_lrp, _StpSmooth);
+	float smooth = clamp01(lit - smooth_v * reduce * step);
+
+	//shadow
+	float atten_inv = clamp(atten, 1.0 - _MaxAtten, 1);
+	float dimLit = smooth * atten_inv;
+	float dim_dlt = dimLit - _MinLight;
+
+	//luminocity
+	float lumLight = _MaxLight + _Lumin;
+	float lum_dlt = lumLight - _MinLight;
+
+	//clipped
+	float litd_clmp = clamp01(dim_dlt);
+	float clip_cf = litd_clmp / delta;
+
+	float clip_uncl = _MinLight + clip_cf * lum_dlt;
+	float clip_v = clamp(clip_uncl, _MinLight, lumLight);
+
+	//relative limits
+	float lerp_v = lum_dlt * dimLit;
+	float relate_v = _MinLight + lerp_v;
+
+	//result
+	float result = _Clipped * clip_v;
+	result += !_Clipped * relate_v;
+
+	return result;
+}
+
+//post effects
+
+void PostShine (inout float4 col, float dot, float atten)
+{
+	float pos = abs(dot - 1.0);
+	float len = _ShnRange * 2;
+
+	float smth_inv = 1.0 - _ShnSmooth;
+	float smth_end = len * smth_inv;
+
+	float shine = posz(len - pos);
+	float smooth = smoothstep(len, smth_end, pos, 1.);
+	float dim = 1.0 - _MaxAtten * rev(atten) * rev(_ShnOverlap);
+
+	float blend = _ShnIntense * shine * smooth * dim;
+	col = ColorBlend(col, _ShnColor, blend);
+}
+
+float4 PostEffects (float4 col, float toon, float atten, float NdotL, float NdotH, float VdotN, float FdotV)
+{
+	PostShine(col, NdotL, atten);
+
+	return col;
+}
+
+#endif