45 lines
1.2 KiB
PostScript
45 lines
1.2 KiB
PostScript
/**
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* @ Version: SCREEN SPACE SHADERS - UPDATE 20
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* @ Description: SSR - Blur Phase
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* @ Modified time: 2024-02-09 07:25
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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 | z: Temporal 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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float4 blur = 0;
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float2 buffer_pixel_size = 1.0 / blur_params.zw;
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float radius = SSFX_gradient_noise_IGN(I.tc0 * screen_res.xy) * 2.0f;
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float2 offset = float2(radius, radius);
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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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blur += ssr_image.SampleLevel(smp_nofilter, I.tc0 + (offset * (r - 1.0f) * buffer_pixel_size), 0);
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}
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blur /= 12;
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blur = lerp(base_image, blur, ssr_setup.y);
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// Adjust Gloss data
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float ref = lerp(base_image.a, blur.a, smoothstep(1.0f, 3.0f, ssr_setup.x) );
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return float4(blur.rgb, ref);
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}
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