asdf

1 files changed, 69 insertions, 0 deletions

diff --git a/decals.cginc b/decals.cginc
index 4812dd3..694e48d 100644
--- a/decals.cginc
+++ b/decals.cginc
@@ -240,6 +240,35 @@ float4 getCmykWarpingPlanesColor(DecalParams params, float2 uv) {
 

 #define APPLY_DECAL_REFLECTIONS_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, params) {}

 

+#define APPLY_DECAL_SDF_SSN_ON(i, albedo, normal_tangent, metallic, smoothness, emission, params) \

+    { \

+        float sdf_val = params.mainTex.SampleBias(trilinear_aniso4_repeat_s, decal_uv, params.mip_bias).r; \

+        sdf_val = params.sdf_invert ? 1 - sdf_val : sdf_val; \

+        \

+        float sdf_dx = ddx(sdf_val); \

+        float sdf_dy = ddy(sdf_val); \

+        \

+        float2 uv_dx = ddx(decal_uv); \

+        float2 uv_dy = ddy(decal_uv); \

+        \

+        float det = uv_dx.x * uv_dy.y - uv_dx.y * uv_dy.x; \

+        float2 sdf_grad_uv; \

+        if (abs(det) < 1e-6) { \

+            sdf_grad_uv = float2(0,0); \

+        } else { \

+            sdf_grad_uv.x = (sdf_dx * uv_dy.y - sdf_dy * uv_dx.y) / det; \

+            sdf_grad_uv.y = (sdf_dy * uv_dx.x - sdf_dx * uv_dy.x) / det; \

+        } \

+        \

+        float2 scaled_grad = sdf_grad_uv * params.sdf_ssn_strength * decal_albedo.a * params.opacity; \

+        \

+        float3 sdf_normal_ts = normalize(float3(-scaled_grad.xy, 1.0)); \

+        \

+        normal_tangent = blendNormalsHill12(normal_tangent, sdf_normal_ts); \

+    }

+

+#define APPLY_DECAL_SDF_SSN_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, params) {}

+

 void applyDecals(in v2f i, inout float4 albedo, inout float3 normal_tangent, inout float metallic, inout float smoothness, inout float3 emission) {

     DecalParams decal;

     #if defined(_DECAL0)

@@ -301,6 +330,11 @@ void applyDecals(in v2f i, inout float4 albedo, inout float3 normal_tangent, ino
         #else

         APPLY_DECAL_NORMAL_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #endif

+        #if defined(_DECAL0_SDF_SSN)

+        APPLY_DECAL_SDF_SSN_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #else

+        APPLY_DECAL_SDF_SSN_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #endif

         #if defined(_DECAL0_REFLECTIONS)

         APPLY_DECAL_REFLECTIONS_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #else

@@ -367,6 +401,11 @@ void applyDecals(in v2f i, inout float4 albedo, inout float3 normal_tangent, ino
         #else

         APPLY_DECAL_NORMAL_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #endif

+        #if defined(_DECAL1_SDF_SSN)

+        APPLY_DECAL_SDF_SSN_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #else

+        APPLY_DECAL_SDF_SSN_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #endif

         #if defined(_DECAL1_REFLECTIONS)

         APPLY_DECAL_REFLECTIONS_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #else

@@ -433,6 +472,11 @@ void applyDecals(in v2f i, inout float4 albedo, inout float3 normal_tangent, ino
         #else

         APPLY_DECAL_NORMAL_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #endif

+        #if defined(_DECAL2_SDF_SSN)

+        APPLY_DECAL_SDF_SSN_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #else

+        APPLY_DECAL_SDF_SSN_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #endif

         #if defined(_DECAL2_REFLECTIONS)

         APPLY_DECAL_REFLECTIONS_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #else

@@ -499,6 +543,11 @@ void applyDecals(in v2f i, inout float4 albedo, inout float3 normal_tangent, ino
         #else

         APPLY_DECAL_NORMAL_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #endif

+        #if defined(_DECAL3_SDF_SSN)

+        APPLY_DECAL_SDF_SSN_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #else

+        APPLY_DECAL_SDF_SSN_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #endif

         #if defined(_DECAL3_REFLECTIONS)

         APPLY_DECAL_REFLECTIONS_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #else

@@ -565,6 +614,11 @@ void applyDecals(in v2f i, inout float4 albedo, inout float3 normal_tangent, ino
         #else

         APPLY_DECAL_NORMAL_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #endif

+        #if defined(_DECAL4_SDF_SSN)

+        APPLY_DECAL_SDF_SSN_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #else

+        APPLY_DECAL_SDF_SSN_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #endif

         #if defined(_DECAL4_REFLECTIONS)

         APPLY_DECAL_REFLECTIONS_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #else

@@ -631,6 +685,11 @@ void applyDecals(in v2f i, inout float4 albedo, inout float3 normal_tangent, ino
         #else

         APPLY_DECAL_NORMAL_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #endif

+        #if defined(_DECAL5_SDF_SSN)

+        APPLY_DECAL_SDF_SSN_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #else

+        APPLY_DECAL_SDF_SSN_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #endif

         #if defined(_DECAL5_REFLECTIONS)

         APPLY_DECAL_REFLECTIONS_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #else

@@ -697,6 +756,11 @@ void applyDecals(in v2f i, inout float4 albedo, inout float3 normal_tangent, ino
         #else

         APPLY_DECAL_NORMAL_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #endif

+        #if defined(_DECAL6_SDF_SSN)

+        APPLY_DECAL_SDF_SSN_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #else

+        APPLY_DECAL_SDF_SSN_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #endif

         #if defined(_DECAL6_REFLECTIONS)

         APPLY_DECAL_REFLECTIONS_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #else

@@ -763,6 +827,11 @@ void applyDecals(in v2f i, inout float4 albedo, inout float3 normal_tangent, ino
         #else

         APPLY_DECAL_NORMAL_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #endif

+        #if defined(_DECAL7_SDF_SSN)

+        APPLY_DECAL_SDF_SSN_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #else

+        APPLY_DECAL_SDF_SSN_OFF(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

+        #endif

         #if defined(_DECAL7_REFLECTIONS)

         APPLY_DECAL_REFLECTIONS_ON(i, albedo, normal_tangent, metallic, smoothness, emission, decal);

         #else