99 lines
3.2 KiB
PostScript
99 lines
3.2 KiB
PostScript
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/**
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* @ Version: SCREEN SPACE SHADERS - UPDATE 22
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* @ Description: Bloom - Combine
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* @ Modified time: 2024-11-05 11:31
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* @ Author: https://www.moddb.com/members/ascii1457
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* @ Mod: https://www.moddb.com/mods/stalker-anomaly/addons/screen-space-shaders
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*/
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#include "screenspace_common.h"
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Texture2D s_ssfx_bloom;
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Texture2D s_starburst;
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Texture2D s_bloom_lens;
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Texture2D s_ssfx_lensdirt;
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uniform float4 ssfx_bloom_1; // Threshold, Exposure, Emmisive, Sky
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uniform float4 ssfx_bloom_2; // Blur Radius, Vibrance, Lens, Dirt
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uniform float4 mask_control;
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//uniform float4 shader_param_6;
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float3 UnchartedToneMapping(float3 col, float exposure)
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{
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static const float A = 0.15;
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static const float B = 0.50;
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static const float C = 0.10;
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static const float D = 0.20;
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static const float E = 0.02;
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static const float F = 0.30;
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static const float W = 11.2;
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static const float white = 1.0 / (((W * (A * W + C * B) + D * E) / (W * (A * W + B) + D * F)) - E / F);
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col *= exposure;
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col = ((col * (A * col + C * B) + D * E) / (col * (A * col + B) + D * F)) - E / F;
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col *= white;
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return col;
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}
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float4 main ( p_screen I ) : SV_Target
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{
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// Bloom ///////////////////////////////////////////////////////////////////////////////////
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float4 bloom = 0;
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bloom.r = s_ssfx_bloom.Sample(smp_rtlinear, I.tc0.xy + (float2(4.5f, 5.3f) / screen_res.xy)).r;
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bloom.ga = s_ssfx_bloom.Sample(smp_rtlinear, I.tc0.xy).ga;
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bloom.b = s_ssfx_bloom.Sample(smp_rtlinear, I.tc0.xy - (float2(3.2f, 4.1f) / screen_res.xy)).b;
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// Adjust intensity
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bloom = pow( abs( bloom ), 0.5f );
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// Some extra bloom for emissive ( `bloom.a` is only Emissive )
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bloom.rgb = saturate(bloom.rgb * (1.0f + bloom.a));
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// Tonemap
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bloom.rgb = UnchartedToneMapping(bloom.rgb, ssfx_bloom_1.y);
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bloom.rgb = vibrance( bloom.rgb, ssfx_bloom_2.y );
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// Lens Flares /////////////////////////////////////////////////////////////////////////////
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float aspect = screen_res.x / screen_res.y;
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// Starburst
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float sOffset = dot(m_V[0], float3(0,0,1)) + dot(m_V[1], float3(0,1,0)) * 2; // Camera Angle
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// Radial UV
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float2 cUV = I.tc0.xy - 0.5f;
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float cUV_len = length(cUV);
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float radial = acos(cUV.x / cUV_len) * 2.0f;
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float starburst = s_starburst.Sample(smp_linear, radial.xx + sOffset).r;
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starburst *= s_starburst.Sample(smp_linear, radial.xx - sOffset).r;
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//starburst = saturate(starburst + (1.0f - smoothstep(0.0, 0.5, d)));
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// Lens flares
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float3 Flares = 0;
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Flares.r = s_bloom_lens.Sample(smp_rtlinear, I.tc0.xy + (float2(18.5f, 21.1f) / screen_res.xy)).r;
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Flares.g = s_bloom_lens.Sample(smp_rtlinear, I.tc0.xy).g;
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Flares.b = s_bloom_lens.Sample(smp_rtlinear, I.tc0.xy - (float2(12.5f, 18.1f) / screen_res.xy)).b;
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Flares = saturate(Flares * starburst * ssfx_bloom_2.z);
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// Adjust brightness
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Flares *= 0.5f / (0.5f + Flares) * mask_control.x;
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// COMBINE /////////////////////////////////////////////////////////////////////////////////
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bloom.rgb = blend_soft(bloom.rgb, Flares);
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// Dirt Layer
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float3 MaskDirt = s_ssfx_lensdirt.Sample(smp_rtlinear, I.tc0.xy) * saturate(bloom.rgb + bloom.aaa);
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MaskDirt *= 2.5f * ssfx_bloom_2.w * saturate(mask_control.x);
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bloom.rgb = blend_soft(bloom.rgb, MaskDirt.rgb);
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return float4(bloom.rgb, 1);
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}
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