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CRTcgwg

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Mar 30th, 2017
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  1. #include "ReShade.fxh"
  2.  
  3. uniform float texture_sizeX <
  4. ui_type = "drag";
  5. ui_min = 1.0;
  6. ui_max = BUFFER_WIDTH;
  7. ui_label = "Screen Width [CRT-cgwg]";
  8. > = 320.0;
  9.  
  10. uniform float texture_sizeY <
  11. ui_type = "drag";
  12. ui_min = 1.0;
  13. ui_max = BUFFER_HEIGHT;
  14. ui_label = "Screen Height [CRT-cgwg]";
  15. > = 240.0;
  16.  
  17. uniform float CRTCGWG_GAMMA <
  18. ui_type = "drag";
  19. ui_min = 0.0;
  20. ui_max = 10.0;
  21. ui_step = 0.01;
  22. ui_label = "Gamma [CRT-cgwg]";
  23. > = 2.7;
  24.  
  25. float fmod(float a, float b)
  26. {
  27. float c = frac(abs(a/b))*abs(b);
  28. return (a < 0) ? -c : c; /* if ( a < 0 ) c = 0-c */
  29. }
  30.  
  31. #define TEX2D(c) tex2D(ReShade::BackBuffer,(c))
  32. #define PI 3.141592653589
  33.  
  34. float4 PS_CRTcgwg(float4 vpos : SV_Position, float2 uv : TexCoord) : SV_Target
  35. {
  36.  
  37. float2 delta = 1.0 / ReShade::ScreenSize.xy;
  38. float dx = delta.x;
  39. float dy = delta.y;
  40.  
  41. float2 c01 = uv + float2(-dx, 0.0);
  42. float2 c11 = uv + float2(0.0, 0.0);
  43. float2 c21 = uv + float2(dx, 0.0);
  44. float2 c31 = uv + float2(2.0 * dx, 0.0);
  45. float2 c02 = uv + float2(-dx, dy);
  46. float2 c12 = uv + float2(0.0, dy);
  47. float2 c22 = uv + float2(dx, dy);
  48. float2 c32 = uv + float2(2.0 * dx, dy);
  49. float mod_factor = uv.x * ReShade::ScreenSize.x * texture_sizeX / texture_sizeX;
  50. float2 ratio_scale = uv * float2(texture_sizeX,texture_sizeY);
  51.  
  52.  
  53. float2 uv_ratio = frac(ratio_scale);
  54. float4 col, col2;
  55.  
  56. float4x4 texes0 = float4x4((TEX2D(c01).xyz),0.0, (TEX2D(c11).xyz),0.0, (TEX2D(c21).xyz),0.0, (TEX2D(c31).xyz),0.0);
  57. float4x4 texes1 = float4x4((TEX2D(c02).xyz),0.0, (TEX2D(c12).xyz),0.0, (TEX2D(c22).xyz),0.0, (TEX2D(c32).xyz),0.0);
  58.  
  59. float4 coeffs = float4(1.0 + uv_ratio.x, uv_ratio.x, 1.0 - uv_ratio.x, 2.0 - uv_ratio.x) + 0.005;
  60. coeffs = sin(PI * coeffs) * sin(0.5 * PI * coeffs) / (coeffs * coeffs);
  61. coeffs = coeffs / dot(coeffs, float(1.0));
  62.  
  63. float3 weights = float3(3.33 * uv_ratio.y, 3.33 * uv_ratio.y, 3.33 * uv_ratio.y);
  64. float3 weights2 = float3(uv_ratio.y * -3.33 + 3.33, uv_ratio.y * -3.33 + 3.33, uv_ratio.y * -3.33 + 3.33);
  65.  
  66. col = saturate(mul(coeffs, texes0));
  67. col2 = saturate(mul(coeffs, texes1));
  68.  
  69. float3 wid = 2.0 * pow(col, float4(4.0, 4.0, 4.0, 0.0)) + 2.0;
  70. float3 wid2 = 2.0 * pow(col2, float4(4.0, 4.0, 4.0, 0.0)) + 2.0;
  71.  
  72. col = pow(col, float4(CRTCGWG_GAMMA, CRTCGWG_GAMMA, CRTCGWG_GAMMA,0.0));
  73. col2 = pow(col2, float4(CRTCGWG_GAMMA, CRTCGWG_GAMMA, CRTCGWG_GAMMA,0.0));
  74.  
  75. float3 sqrt1 = rsqrt(0.5 * wid);
  76. float3 sqrt2 = rsqrt(0.5 * wid2);
  77.  
  78. float3 pow_mul1 = weights * sqrt1;
  79. float3 pow_mul2 = weights2 * sqrt2;
  80.  
  81. float3 div1 = 0.1320 * wid + 0.392;
  82. float3 div2 = 0.1320 * wid2 + 0.392;
  83.  
  84. float3 pow1 = -pow(pow_mul1, wid);
  85. float3 pow2 = -pow(pow_mul2, wid2);
  86.  
  87. weights = exp(pow1) / div1;
  88. weights2 = exp(pow2) / div2;
  89.  
  90. float3 multi = col * weights + col2 * weights2;
  91. float3 mcol = lerp(float3(1.0, 0.7, 1.0), float3(0.7, 1.0, 0.7), floor(fmod(mod_factor, 2.0)));
  92.  
  93. return float4(pow(mcol * multi, float3(0.454545, 0.454545, 0.454545)), 1.0);
  94. }
  95.  
  96. technique cgwgCRT {
  97. pass CRT_cgwg_fast {
  98. VertexShader=PostProcessVS;
  99. PixelShader=PS_CRTcgwg;
  100. }
  101. }
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