jaildesigner-jailgames/jaildoctors_dilemma
1
0
Fork 2
Code Issues 1 Pull Requests Projects Releases 20 Wiki Activity

imlementant supersampling

Browse Source
This commit is contained in:
Sergio
2026-03-22 21:24:20 +01:00
parent 24594fa89a
commit c87779cc09
7 changed files with 245 additions and 62 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
data/shaders/postfx.frag
View File

@@ -24,8 +24,8 @@ layout(set = 3, binding = 0) uniform PostFXUniforms {
float bleeding;
float pixel_scale; // physical pixels per logical pixel (vh / tex_height_)
float time; // seconds since SDL init (for future animated effects)
float pad0; // padding — 48 bytes total (3 × 16)
float pad1;
float oversample; // supersampling factor (1.0 = off, 3.0 = 3×SS)
float pad1; // padding — 48 bytes total (3 × 16)
} u;
// YCbCr helpers for NTSC bleeding
@@ -68,15 +68,17 @@ void main() {
// Muestra base
vec3 base = texture(scene, uv).rgb;
// Sangrado NTSC — difuminado horizontal de crominancia
// Sangrado NTSC — difuminado horizontal de crominancia.
// step = 1 pixel lógico de juego en UV (corrige SS: textureSize.x = game_w * oversample).
vec3 colour;
if (u.bleeding > 0.0) {
float tw = float(textureSize(scene, 0).x);
float tw = float(textureSize(scene, 0).x);
float step = u.oversample / tw; // 1 pixel lógico en UV
vec3 ycc = rgb_to_ycc(base);
vec3 ycc_l2 = rgb_to_ycc(texture(scene, uv - vec2(2.0/tw, 0.0)).rgb);
vec3 ycc_l1 = rgb_to_ycc(texture(scene, uv - vec2(1.0/tw, 0.0)).rgb);
vec3 ycc_r1 = rgb_to_ycc(texture(scene, uv + vec2(1.0/tw, 0.0)).rgb);
vec3 ycc_r2 = rgb_to_ycc(texture(scene, uv + vec2(2.0/tw, 0.0)).rgb);
vec3 ycc_l2 = rgb_to_ycc(texture(scene, uv - vec2(2.0*step, 0.0)).rgb);
vec3 ycc_l1 = rgb_to_ycc(texture(scene, uv - vec2(1.0*step, 0.0)).rgb);
vec3 ycc_r1 = rgb_to_ycc(texture(scene, uv + vec2(1.0*step, 0.0)).rgb);
vec3 ycc_r2 = rgb_to_ycc(texture(scene, uv + vec2(2.0*step, 0.0)).rgb);
ycc.yz = (ycc_l2.yz + ycc_l1.yz*2.0 + ycc.yz*2.0 + ycc_r1.yz*2.0 + ycc_r2.yz) / 8.0;
colour = mix(base, ycc_to_rgb(ycc), u.bleeding);
} else {