Orkuncakilkaya
db7c21e5d8
The atlas is white glyphs on alpha and the overlay reads only the coverage, but it was uploaded RGBA8: Maroon Lake's 3072 x 2688 atlas was 43 MB of Metal memory with its mips, the largest single thing in the launcher window. overlay_font now keeps the alpha alone as R8 (ov_font_tex; any other PNG shape is uploaded as before) and overlay.frag reads .r - the white fallback texture reads 1 there as it did from .a. Launcher window, graphics regions: the atlas 43.0 -> 11.5 MB; process footprint at 25 s 402 -> 378 MB. The headless launcher shot is identical to the unchanged build's (0 pixels differ; two unchanged runs differ from each other by 1.69%, and the new one by the same against them). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
39 lines
1.6 KiB
GLSL
39 lines
1.6 KiB
GLSL
// 2D overlay: an image texture, the font atlas (glyph coverage, R8) or a flat colour, times a
|
|
// colour. Which one is the vertex's own: v carries 4 x the mode (0 image, 1 font, 2 flat) on top of
|
|
// its real coordinate, so text, panels and an image's quads share a draw (overlay.ludic, ov_use_tex).
|
|
in vec2 v_uv;
|
|
in vec4 v_col;
|
|
uniform sampler2D u_tex;
|
|
uniform sampler2D u_font;
|
|
out vec4 o_color;
|
|
#ifdef HDR10
|
|
// the interface is sRGB: drawn into an HDR10 frame its white sits at the player's paper white, as the
|
|
// picture's white does. u_hdr_scale multiplies that for one batch (ov_hdr_nits): a calibration
|
|
// screen's test patches, which have to reach past paper white to the display's peak.
|
|
uniform float u_hdr_paper;
|
|
uniform float u_hdr_scale;
|
|
vec3 bt709_to_2020(vec3 c) {
|
|
return mat3(0.6274, 0.0691, 0.0164, 0.3293, 0.9195, 0.0880, 0.0433, 0.0114, 0.8956) * c;
|
|
}
|
|
vec3 pq_encode(vec3 nits) {
|
|
const float m1 = 0.1593017578125, m2 = 78.84375, c1 = 0.8359375, c2 = 18.8515625, c3 = 18.6875;
|
|
vec3 yp = pow(clamp(nits / 10000.0, 0.0, 1.0), vec3(m1));
|
|
return pow((c1 + c2 * yp) / (1.0 + c3 * yp), vec3(m2));
|
|
}
|
|
#endif
|
|
void main() {
|
|
float mode = floor((v_uv.y + 0.5) * 0.25);
|
|
vec2 uv = vec2(v_uv.x, v_uv.y - 4.0 * mode);
|
|
if (mode > 1.5) {
|
|
o_color = v_col;
|
|
} else if (mode > 0.5) {
|
|
o_color = vec4(v_col.rgb, v_col.a * texture(u_font, uv).r); // the atlas is its coverage alone (R8)
|
|
} else {
|
|
vec4 t = texture(u_tex, uv);
|
|
o_color = vec4(v_col.rgb * t.rgb, v_col.a * t.a);
|
|
}
|
|
#ifdef HDR10
|
|
float nits = max(u_hdr_paper, 80.0) * max(u_hdr_scale, 0.0);
|
|
o_color.rgb = pq_encode(bt709_to_2020(pow(max(o_color.rgb, vec3(0.0)), vec3(2.2))) * nits);
|
|
#endif
|
|
}
|