mame/3rdparty/bgfx/tools/texturev/fs_texture_sdf.sc
Miodrag Milanović 812e6094f4
Update BGFX, BX and BIMG (#10789)
* Update to bgfx a93a714632b79b5ddbf5c86ac323fa9b76ed3433
Co-authored-by: Бранимир Караџић <branimirkaradzic@gmail.com>
2023-01-05 09:32:40 -05:00

24 lines
581 B
Scala

$input v_texcoord0, v_color0
/*
* Copyright 2011-2022 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
*/
#include "common.sh"
SAMPLER2D(s_texColor, 0);
void main()
{
vec4 bgColor = vec4(0.0, 0.0, 0.0, 0.0);
vec4 fgColor = vec4(1.0, 1.0, 1.0, 1.0);
float sigDist = texture2DLod(s_texColor, v_texcoord0.xy, u_textureLod).x;
float width = fwidth(sigDist);
float edge = 0.5;
float opacity = clamp(smoothstep(edge - width, edge + width, sigDist), 0.0, 1.0);
gl_FragColor = mix(bgColor, fgColor, opacity);
}