add some shaders

This commit is contained in:
PeaAshMeter 2026-04-13 01:20:10 +03:00
parent 3615435d08
commit f3d5f82382
2 changed files with 11 additions and 0 deletions

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vec4 effect(vec4 color, Image tex, vec2 uv, vec2 px)
{
vec4 c = Texel(tex, uv);
float gray = dot(c.rgb, vec3(0.299, 0.587, 0.114)); // магические числа человеческого восприятия
return vec4(vec3(gray), c.a);
}

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vec4 effect(vec4 color, Image tex, vec2 uv, vec2 px)
{
vec4 c = Texel(tex, uv);
return vec4(vec3(1.0) - c.rgb, c.a);
}