52 lines
1.3 KiB
PostScript
52 lines
1.3 KiB
PostScript
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/**
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* @ Version: SCREEN SPACE SHADERS - UPDATE 21
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* @ Description: SSR - Blur Phase
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* @ Modified time: 2024-06-04 09:43
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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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uniform float4 blur_params; // x: | y: | z: Buffer width | w: Buffer Height
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uniform float4 ssr_setup; // x: SSR Resolution | y: Blur Intensity
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Texture2D ssr_image;
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float4 main(p_screen I) : SV_Target
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{
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// Sample SSR result
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float4 base_image = ssr_image.SampleLevel(smp_nofilter, I.tc0, 0);
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#ifndef USE_MSAA
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float gloss = s_diffuse.Sample( smp_nofilter, I.tc0 * ssr_setup.x ).a;
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#else
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float gloss = s_diffuse.Load( int3( I.hpos.xy * ssr_setup.x, 0 ), 0 ).a;
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#endif
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float4 blur = 0;
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float2 buffer_pixel_size = 1.0 / blur_params.zw;
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float2 offset = 1.0f;
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float r = 0.9f;
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for (int i = 0; i < 12; i++)
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{
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r += 1.0f / r;
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offset = mul(offset, pp_rotation_matrix);
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float4 test = ssr_image.SampleLevel(smp_nofilter, I.tc0 + (offset * (r - 1.0f) * buffer_pixel_size), 0);
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blur.rgb += test.rgb;
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}
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blur /= 12;
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// Limit at lower resolution
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float Blur_Int = clamp(ssr_setup.y, ( ssr_setup.x / 10 - 0.1f ) * 3.0f, 1);
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// Blur <- 0.0f Gloss 0.4f -> Sharp
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blur.rgb = lerp(blur.rgb, base_image.rgb, saturate((gloss * (1.0f - Blur_Int)) * 2.5f));
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return blur;
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}
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