SSS 18.1 -> 21 add new shaders

Author: yohjimane

res/gamedata/shaders/r5/check_screenspace_LUT.h

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+#define SSFX_LUT_INUSE

res/gamedata/shaders/r5/check_screenspace_PUDDLES.h

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+#define SSFX_PUDDLES

res/gamedata/shaders/r5/check_screenspace_SHADOWS.h

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+#define SSFX_SHADOWS

res/gamedata/shaders/r5/check_screenspace_SSS.h

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+#define SSFX_SSS

res/gamedata/shaders/r5/check_screenspace_WIND.h

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+#define SSFX_WIND

res/gamedata/shaders/r5/deffer_terrain_flat_d.vs

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+#define USE_TDETAIL
+
+#include	"common.h"
+
+#if defined(USE_R2_STATIC_SUN) && !defined(USE_LM_HEMI)
+#define	v_in	v_static_color	
+#else
+#define	v_in	v_static
+#endif
+
+
+v2p_bumped main( v_in I )
+{
+	float4	w_pos	= I.P				;
+	float2 	tc		= unpack_tc_base	(I.tc,I.T.w,I.B.w);	// copy tc
+	float 	hemi 	= I.Nh.w			;
+
+	// Eye-space pos/normal
+	v2p_bumped 	O;
+	float3	Pe	= mul		(m_WV,  w_pos		);
+	O.hpos 		= mul		(m_WVP,	w_pos		);
+	O.tcdh 		= float4	(tc.xyyy			);
+	O.position	= float4	(Pe, hemi			);
+
+#if defined(USE_R2_STATIC_SUN) && !defined(USE_LM_HEMI)
+	O.tcdh.w	= I.color.w;					// (r,g,b,dir-occlusion)
+#endif
+
+	// Calculate the 3x3 transform from tangent space to eye-space
+	// TangentToEyeSpace = object2eye * tangent2object
+	//		     = object2eye * transpose(object2tangent) (since the inverse of a rotation is its transpose)
+	I.Nh			= unpack_D3DCOLOR(I.Nh);
+	I.T				= unpack_D3DCOLOR(I.T);
+	I.B				= unpack_D3DCOLOR(I.B);
+	float3 	N 	= unpack_bx4(I.Nh);	// just scale (assume normal in the -.5f, .5f)
+	float3 	T 	= unpack_bx4(I.T);	// 
+	float3 	B 	= unpack_bx4(I.B);	// 
+	float3x3 xform	= mul	((float3x3)m_WV, float3x3(
+						T.x,B.x,N.x,
+						T.y,B.y,N.y,
+						T.z,B.z,N.z
+				));
+	// The pixel shader operates on the bump-map in [0..1] range
+	// Remap this range in the matrix, anyway we are pixel-shader limited :)
+	// ...... [ 2  0  0  0]
+	// ...... [ 0  2  0  0]
+	// ...... [ 0  0  2  0]
+	// ...... [-1 -1 -1  1]
+	// issue: strange, but it's slower :(
+	// issue: interpolators? dp4? VS limited? black magic? 
+
+	// Feed this transform to pixel shader
+	O.M1 			= xform[0]; 
+	O.M2 			= xform[1]; 
+	O.M3 			= xform[2]; 
+
+#ifdef 	USE_TDETAIL
+	O.tcdbump		= O.tcdh * dt_params;		// dt tc
+#endif
+
+#ifdef	USE_LM_HEMI
+	O.lmh 			= unpack_tc_lmap	(I.lmh);
+#endif
+	return	O;
+}
+
+FXVS;

res/gamedata/shaders/r5/deffer_terrain_high_flat_d.ps

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+/**
+ * @ Version: SCREEN SPACE SHADERS - UPDATE 20
+ * @ Description: LUT shader
+ * @ Modified time: 2024-01-22 04:12
+ * @ Author: https://www.moddb.com/members/ascii1457
+ * @ Mod: https://www.moddb.com/mods/stalker-anomaly/addons/screen-space-shaders
+ */
+
+// Settings
+#include "settings_screenspace_LUT.h"
+
+// Internal --
+#define LUT_GROUPS		max(1, G_CELLS_GROUPS)
+#define TEXEL_SIZE		float2(1.0f / G_LUT_SIZE_W, 1.0f / (G_CELLS_SIZE * LUT_GROUPS))
+#define TEXEL_HALF		float2(TEXEL_SIZE.xy / 2.0f)
+#define TEXEL_FIX		TEXEL_SIZE.y * LUT_GROUPS
+
+uniform float4 ssfx_lut;
+
+float3 ssfx_lut_pp(float3 base_col)
+{
+	// Prepare LUT UVs
+	float3 cells = base_col * G_CELLS_SIZE - base_col;
+	float lut_frac = frac(cells.b);
+	cells.rg = TEXEL_HALF + cells.rg * TEXEL_SIZE;
+	cells.r += (cells.b - lut_frac) * TEXEL_FIX;
+
+	// Final LUT UVs
+	float4 uvs = float4(cells.rg, cells.r + TEXEL_FIX, cells.g);
+
+	// Group offset
+	float2 grp_offset = float2(0.0, ssfx_lut.y / LUT_GROUPS);
+
+	// Sample LUTs
+	float3 lut_col = lerp(	s_lut_atlas.Sample(smp_linear, uvs.xy + grp_offset).rgb, 
+							s_lut_atlas.Sample(smp_linear, uvs.zw + grp_offset).rgb,
+							lut_frac);
+
+#ifdef G_ADVANCE_TRANSITION
+	
+	// Group2 offset
+	grp_offset = float2(0.0, ssfx_lut.z / LUT_GROUPS);
+
+	// Sample transition LUTs
+	float3 SecondLUT = lerp(s_lut_atlas.Sample(smp_linear, uvs.xy + grp_offset).rgb,
+							s_lut_atlas.Sample(smp_linear, uvs.zw + grp_offset).rgb,
+							lut_frac);
+
+	lut_col = lerp(lut_col, SecondLUT, ssfx_lut.w);
+#endif
+
+	return lerp(base_col.rgb, lut_col.rgb, ssfx_lut.x);
+
+}