yum-archive/2ner

A toon shader for Unity's BIRP.

git clone https://git.yummers.dev/yum-archive/2ner

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1#ifndef __UNITY_STANDARD_CORE_MINIMAL_INC
2#define __UNITY_STANDARD_CORE_MINIMAL_INC
3
4#include "SharedFilteringLib.hlsl"
5#include "UnityShadowLibrary.cginc"
6
7// Now add the SampleShadowMaskBicubic function
8fixed4 SampleShadowMaskBicubic(float2 uv)
9{
10    #if defined(UNITY_SHADOWMASK) && defined(SHADER_API_D3D11)
11        float width, height;
12        unity_ShadowMask.GetDimensions(width, height);
13        float4 unity_ShadowMask_TexelSize = float4(width, height, 1.0/width, 1.0/height);
14        
15        return SampleTexture2DBicubicFilter(unity_ShadowMask, sampler_unity_ShadowMask,
16            uv, unity_ShadowMask_TexelSize);
17    #else
18        // Fallback to regular sampling
19        return UNITY_SAMPLE_TEX2D(unity_ShadowMask, uv);
20    #endif
21}
22
23fixed UnitySampleBakedOcclusionBicubic(float2 lightmapUV, float3 worldPos)
24{
25    #if defined (SHADOWS_SHADOWMASK)
26        #if defined(LIGHTMAP_ON)
27            fixed4 rawOcclusionMask = SampleShadowMaskBicubic(lightmapUV.xy);
28        #else
29            fixed4 rawOcclusionMask = fixed4(1.0, 1.0, 1.0, 1.0);
30            #if UNITY_LIGHT_PROBE_PROXY_VOLUME
31                if (unity_ProbeVolumeParams.x == 1.0)
32                    rawOcclusionMask = LPPV_SampleProbeOcclusion(worldPos);
33                else
34                    rawOcclusionMask = SampleShadowMaskBicubic(lightmapUV.xy);
35            #else
36                rawOcclusionMask = SampleShadowMaskBicubic(lightmapUV.xy);
37            #endif
38        #endif
39        return saturate(dot(rawOcclusionMask, unity_OcclusionMaskSelector));
40
41    #else
42
43        //In forward dynamic objects can only get baked occlusion from LPPV, light probe occlusion is done on the CPU by attenuating the light color.
44        fixed atten = 1.0f;
45        #if defined(UNITY_INSTANCING_ENABLED) && defined(UNITY_USE_SHCOEFFS_ARRAYS)
46            // ...unless we are doing instancing, and the attenuation is packed into SHC array's .w component.
47            atten = unity_SHC.w;
48        #endif
49
50        #if UNITY_LIGHT_PROBE_PROXY_VOLUME && !defined(LIGHTMAP_ON) && !UNITY_STANDARD_SIMPLE
51            fixed4 rawOcclusionMask = atten.xxxx;
52            if (unity_ProbeVolumeParams.x == 1.0)
53                rawOcclusionMask = LPPV_SampleProbeOcclusion(worldPos);
54            return saturate(dot(rawOcclusionMask, unity_OcclusionMaskSelector));
55        #endif
56
57        return atten;
58    #endif
59}
60
61void GetBakedAttenuation(inout float atten, float2 lightmapUV, float3 worldPos)
62{
63    // Base pass with Lightmap support is responsible for handling ShadowMask / blending here for performance reason
64    #if defined(HANDLE_SHADOWS_BLENDING_IN_GI)
65        half bakedAtten = UnitySampleBakedOcclusionBicubic(lightmapUV.xy, worldPos);
66        float zDist = dot(_WorldSpaceCameraPos - worldPos, UNITY_MATRIX_V[2].xyz);
67        float fadeDist = UnityComputeShadowFadeDistance(worldPos, zDist);
68        atten = UnityMixRealtimeAndBakedShadows(atten, bakedAtten, UnityComputeShadowFade(fadeDist));
69    #endif
70}
71
72#endif  // __UNITY_STANDARD_CORE_MINIMAL_INC