add subpixel masks and customize metacrt

crt/shaders/metacrt/bufC.slang

@@ -6,11 +6,17 @@ layout(push_constant) uniform Push
 	vec4 OriginalSize;
 	vec4 OutputSize;
 	uint FrameCount;
-   float cam_spot, noise_intensity;
+   float cam_spot, noise_intensity, cam_loc_y, cam_loc_x, cam_zoom, cam_angle_y, cam_angle_x, cam_fov;
 } params;
 
-#pragma parameter cam_spot "Camera Location" 2.0 0.0 9.0 1.0
+#pragma parameter cam_spot "Cam Loc (0 = Custom, -1 = cycle)" 0.0 -1.0 9.0 1.0
-#pragma parameter noise_intensity "Noise Intensity" 0.1 0.0 0.5 0.01
+#pragma parameter noise_intensity "Noise Intensity" 0.03 0.0 0.5 0.01
+#pragma parameter cam_angle_y "Tilt Cam Y" 0.24 -0.5 0.5 0.01
+#pragma parameter cam_angle_x "Turn Cam X" 0.0 -0.5 0.5 0.01
+#pragma parameter cam_zoom "Custom Cam Zoom" -0.915 -2.0 2.0 0.05
+#pragma parameter cam_loc_y "Rotate World Y Axis" 0.25 0.0001 1.0 0.01
+#pragma parameter cam_loc_x "Rotate World X Axis" 0.0  -0.5 0.5 0.01
+#pragma parameter cam_fov "Custom Cam FOV" 10.0 0.0 100.0 1.0
 
 #define vFragCoord vTexCoord.xy * params.OutputSize.xy
 #define iResolution params.OutputSize.xy
@@ -688,10 +694,10 @@ Interference GetInterference( vec2 vUV )
     
 vec3 SampleScreen( vec3 vUVW )
 {   
-    vec3 vAmbientEmissive = vec3(0.1);
+    vec3 vAmbientEmissive = vec3(0.01);
     vec3 vBlackEmissive = vec3(0.02);
     float fBrightness = 1.75;
-    vec2 vResolution = vec2(480.0f, 576.0f);
+    vec2 vResolution = 2.4999 * params.SourceSize.xy;
     vec2 vPixelCoord = vUVW.xy * vResolution;
     
     vec3 vPixelMatrix = GetPixelMatrix( vPixelCoord );
@@ -955,7 +961,7 @@ vec4 Env_GetSkyColor( const vec3 vViewPos, const vec3 vViewDir )
 	vec4 vResult = vec4( 0.0, 0.0, 0.0, kFarDist );
 
 //#if 1
-    vec3 vEnvMap = textureLod( iChannel1, vViewDir.xy, 0.0 ).rgb;
+    vec3 vEnvMap = textureLod( iChannel1, (vViewDir.xy - vec2(0.0, 1.0)) / 2., 0.0 ).rgb;
     vResult.rgb = vEnvMap;
 //#endif    
     
@@ -1036,17 +1042,17 @@ CameraState GetCameraPosition( int index )
 
     //index=2;
     
-    if ( index == 0 )
+    if ( index == 1 )
     {
         cam.vPos = vec3(-0.1,0.2,-0.08);
         cam.vTarget = vec3(0,0.25,0.1);
         cam.fFov = 10.0;
     }
-    if ( index == 1 )
+    if ( index == 0 )
     {
-        cam.vPos = vec3(0.0,0.25,-0.915);
+        cam.vPos = vec3(params.cam_loc_x,params.cam_loc_y,params.cam_zoom);
-        cam.vTarget = vec3(0.0,0.24,0.25);
+        cam.vTarget = vec3(params.cam_angle_x,params.cam_angle_y,0.0);
-        cam.fFov = 10.0;
+        cam.fFov = params.cam_fov;
     }
     if ( index == 2 )
     {
@@ -1115,11 +1121,19 @@ void main()
     	CameraState camA;
     	CameraState camB;
     
-        float fSeqTime = 1.0;//iTime;
+      if(params.cam_spot > -0.5){
+        camA = GetCameraPosition(int(params.cam_spot));
+        cam.vPos = camA.vPos;
+        cam.vTarget = camA.vTarget;
+        cam.fFov = camA.fFov;
+        cam.fPlaneInFocus = camA.fPlaneInFocus;
+      }
+      else{        
+        float fSeqTime = iTime;
         float fSequenceSegLength = 5.0;
         float fSeqIndex = floor(fSeqTime / fSequenceSegLength);
         float fSeqPos = fract(fSeqTime / fSequenceSegLength);
-        int iIndex = int(params.cam_spot);
+        int iIndex = int(fSeqIndex);
 		int iIndexNext = int(fSeqIndex) + 1;
         camA = GetCameraPosition(iIndex);
         camB = GetCameraPosition(iIndexNext);
@@ -1129,8 +1143,10 @@ void main()
         cam.vTarget = mix(camA.vTarget, camB.vTarget, t );
         cam.fFov = mix(camA.fFov, camB.fFov, t );
         cam.fPlaneInFocus = mix(camA.fPlaneInFocus, camB.fPlaneInFocus, t );
+      }
     }
 
+#if 0    
     if ( iMouse.z > 0.0 )
     {
         float fDist = 0.01 + 3.0 * (iMouse.y / iResolution.y);
@@ -1146,6 +1162,7 @@ void main()
     	vec3 vFocus = vec3(0,0.25,-0.012);	    
 	    cam.fPlaneInFocus = length( vFocus - cam.vPos );
     }
+#endif
    
 #ifdef ENABLE_TAA_JITTER
     cam.vJitter = hash21( fract( iTime ) ) - 0.5f;

include/subpixel_masks.h

@@ -0,0 +1,247 @@
+vec3 mask_weights(vec2 coord, float mask_intensity, int phosphor_layout){
+   vec3 weights = vec3(0.,0.,0.);
+   float intens = 1.;
+   float inv = 1.-mask_intensity;
+   vec3 green   = vec3(inv, intens, inv);
+   vec3 magenta = vec3(intens,inv,intens);
+   vec3 black   = vec3(inv,inv,inv);
+   vec3 red     = vec3(intens,inv,inv);
+   vec3 yellow  = vec3(intens,inv,intens);
+   vec3 cyan    = vec3(inv,intens,intens);
+   vec3 blue    = vec3(inv,inv,intens);
+   int w, z = 0;
+   
+   vec3 aperture_weights = mix(magenta, green, floor(mod(coord.x, 2.0)));
+
+   if(phosphor_layout == 1){
+      // classic aperture for RGB panels; good for 1080p, too small for 4K+
+      // aka aperture_1_2_bgr
+      weights  = aperture_weights;
+   }
+
+   else if(phosphor_layout == 2){
+      // 2x2 shadow mask for RGB panels; good for 1080p, too small for 4K+
+      // aka delta_1_2x1_bgr
+      vec3 inverse_aperture = mix(green, magenta, floor(mod(coord.x, 2.0)));
+      weights               = mix(aperture_weights, inverse_aperture, floor(mod(coord.y, 2.0)));
+   }
+
+   else if(phosphor_layout == 3){
+      // slot mask for RGB panels; looks okay at 1080p, looks better at 4K
+      vec3 slotmask[3][4] = {
+         {magenta, green, black,   black},
+         {magenta, green, magenta, green},
+         {black,   black, magenta, green}
+      };
+      
+      // find the vertical index
+      w = int(floor(mod(coord.y, 3.0)));
+
+      // find the horizontal index
+      z = int(floor(mod(coord.x, 4.0)));
+
+      // use the indexes to find which color to apply to the current pixel
+      weights = slotmask[w][z];
+   }
+
+   if(phosphor_layout == 4){
+      // classic aperture for RBG panels; good for 1080p, too small for 4K+
+      weights  = mix(yellow, blue, floor(mod(coord.x, 2.0)));
+   }
+
+   else if(phosphor_layout == 5){
+      // 2x2 shadow mask for RBG panels; good for 1080p, too small for 4K+
+      vec3 inverse_aperture = mix(blue, yellow, floor(mod(coord.x, 2.0)));
+      weights               = mix(mix(yellow, blue, floor(mod(coord.x, 2.0))), inverse_aperture, floor(mod(coord.y, 2.0)));
+   }
+   
+   else if(phosphor_layout == 6){
+      // aperture_1_4_rgb; good for simulating lower 
+      vec3 ap4[4] = vec3[](red, green, blue, black);
+      
+      z = int(floor(mod(coord.x, 4.0)));
+      
+      weights = ap4[z];
+   }
+   
+   else if(phosphor_layout == 7){
+      // aperture_2_5_bgr
+      vec3 ap3[5] = vec3[](red, magenta, blue, green, green);
+      
+      z = int(floor(mod(coord.x, 5.0)));
+      
+      weights = ap3[z];
+   }
+   
+   else if(phosphor_layout == 8){
+      // aperture_3_6_rgb
+      
+      vec3 big_ap[7] = vec3[](red, red, yellow, green, cyan, blue, blue);
+      
+      w = int(floor(mod(coord.x, 7.)));
+      
+      weights = big_ap[w];
+   }
+   
+   else if(phosphor_layout == 9){
+      // reduced TVL aperture for RGB panels
+      // aperture_2_4_rgb
+      
+      vec3 big_ap_rgb[4] = vec3[](red, yellow, cyan, blue);
+      
+      w = int(floor(mod(coord.x, 4.)));
+      
+      weights = big_ap_rgb[w];
+   }
+   
+   else if(phosphor_layout == 10){
+      // reduced TVL aperture for RBG panels
+      
+      vec3 big_ap_rbg[4] = vec3[](red, magenta, cyan, green);
+      
+      w = int(floor(mod(coord.x, 4.)));
+      
+      weights = big_ap_rbg[w];
+   }
+   
+   else if(phosphor_layout == 11){
+      // delta_1_4x1_rgb; dunno why this is called 4x1 when it's obviously 4x2 /shrug
+      vec3 delta1[2][4] = {
+         {red,  green, blue, black},
+         {blue, black, red,  green}
+      };
+      
+      w = int(floor(mod(coord.y, 2.0)));
+      z = int(floor(mod(coord.x, 4.0)));
+      
+      weights = delta1[w][z];
+   }
+   
+   else if(phosphor_layout == 12){
+      // delta_2_4x1_rgb
+      vec3 delta[2][4] = {
+         {red, yellow, cyan, blue},
+         {cyan, blue, red, yellow}
+      };
+      
+      w = int(floor(mod(coord.y, 2.0)));
+      z = int(floor(mod(coord.x, 4.0)));
+      
+      weights = delta[w][z];
+   }
+   
+   else if(phosphor_layout == 13){
+      // delta_2_4x2_rgb
+      vec3 delta[4][4] = {
+         {red,  yellow, cyan, blue},
+         {red,  yellow, cyan, blue},
+         {cyan, blue,   red,  yellow},
+         {cyan, blue,   red,  yellow}
+      };
+      
+      w = int(floor(mod(coord.y, 4.0)));
+      z = int(floor(mod(coord.x, 4.0)));
+      
+      weights = delta[w][z];
+   }
+
+   else if(phosphor_layout == 14){
+      // slot mask for RGB panels; too low-pitch for 1080p, looks okay at 4K, but wants 8K+
+      vec3 slotmask[3][6] = {
+         {magenta, green, black, black,   black, black},
+         {magenta, green, black, magenta, green, black},
+         {black,   black, black, magenta, green, black}
+      };
+      
+      // find the vertical index
+      w = int(floor(mod(coord.y, 3.0)));
+
+      // find the horizontal index
+      z = int(floor(mod(coord.x, 6.0)));
+
+      // use the indexes to find which color to apply to the current pixel
+      weights = slotmask[w][z];
+   }
+   
+   else if(phosphor_layout == 15){
+      // slot_2_4x4_rgb
+      vec3 slot2[4][8] = {
+         {red,   yellow, cyan,  blue,  red,   yellow, cyan,  blue },
+         {red,   yellow, cyan,  blue,  black, black,  black, black},
+         {red,   yellow, cyan,  blue,  red,   yellow, cyan,  blue },
+         {black, black,  black, black, red,   yellow, cyan,  blue }
+      };
+   
+      w = int(floor(mod(coord.y, 4.0)));
+      z = int(floor(mod(coord.x, 8.0)));
+      
+      weights = slot2[w][z];
+   }
+
+   else if(phosphor_layout == 16){
+      // slot mask for RBG panels; too low-pitch for 1080p, looks okay at 4K, but wants 8K+
+      vec3 slotmask[3][4] = {
+         {yellow, blue,  black,  black},
+         {yellow, blue,  yellow, blue},
+         {black,  black, yellow, blue}
+      };
+      
+      // find the vertical index
+      w = int(floor(mod(coord.y, 3.0)));
+
+      // find the horizontal index
+      z = int(floor(mod(coord.x, 4.0)));
+
+      // use the indexes to find which color to apply to the current pixel
+      weights = slotmask[w][z];
+   }
+   
+   else if(phosphor_layout == 17){
+      // slot_2_5x4_bgr
+      vec3 slot2[4][10] = {
+         {red,   magenta, blue,  green, green, red,   magenta, blue,  green, green},
+         {black, blue,    blue,  green, green, red,   red,     black, black, black},
+         {red,   magenta, blue,  green, green, red,   magenta, blue,  green, green},
+         {red,   red,     black, black, black, black, blue,    blue,  green, green}
+      };
+   
+      w = int(floor(mod(coord.y, 4.0)));
+      z = int(floor(mod(coord.x, 10.0)));
+      
+      weights = slot2[w][z];
+   }
+   
+   else if(phosphor_layout == 18){
+      // same as above but for RBG panels
+      vec3 slot2[4][10] = {
+         {red,   yellow, green, blue,  blue,  red,   yellow, green, blue,  blue },
+         {black, green,  green, blue,  blue,  red,   red,    black, black, black},
+         {red,   yellow, green, blue,  blue,  red,   yellow, green, blue,  blue },
+         {red,   red,    black, black, black, black, green,  green, blue,  blue }
+      };
+   
+      w = int(floor(mod(coord.y, 4.0)));
+      z = int(floor(mod(coord.x, 10.0)));
+      
+      weights = slot2[w][z];
+   }
+   
+   else if(phosphor_layout == 19){
+      // slot_3_7x6_rgb
+      vec3 slot[6][14] = {
+         {red,   red,   yellow, green, cyan,  blue,  blue,  red,   red,   yellow, green,  cyan,  blue,  blue},
+         {red,   red,   yellow, green, cyan,  blue,  blue,  red,   red,   yellow, green,  cyan,  blue,  blue},
+         {red,   red,   yellow, green, cyan,  blue,  blue,  black, black, black,  black,  black, black, black},
+         {red,   red,   yellow, green, cyan,  blue,  blue,  red,   red,   yellow, green,  cyan,  blue,  blue},
+         {red,   red,   yellow, green, cyan,  blue,  blue,  red,   red,   yellow, green,  cyan,  blue,  blue},
+         {black, black, black,  black, black, black, black, black, red,   red,    yellow, green, cyan,  blue}
+      };
+      
+      w = int(floor(mod(coord.y, 6.0)));
+      z = int(floor(mod(coord.x, 14.0)));
+      
+      weights = slot[w][z];
+   }
+
+   return weights;
+}