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refactor shaders

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MihailRis 2025-05-09 23:51:34 +03:00
parent 36e5ff2472
commit 30a0b81680
9 changed files with 128 additions and 88 deletions
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32
res/shaders/lib/shadows.glsl Normal file
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@ -0,0 +1,32 @@
#ifndef SHADOWS_GLSL_
#define SHADOWS_GLSL_
float calc_shadow() {
float shadow = 1.0;
if (u_enableShadows) {
vec4 mpos = u_shadowsMatrix * vec4(a_modelpos.xyz + a_realnormal * 0.08, 1.0);
vec3 projCoords = mpos.xyz / mpos.w;
projCoords = projCoords * 0.5 + 0.5;
projCoords.z -= 0.0001;
shadow = 0.0;
if (dot(a_realnormal, u_sunDir) < 0.0) {
for (int x = -1; x <= 1; x++) {
for (int y = -1; y <= 1; y++) {
shadow += texture(u_shadows, projCoords.xyz + vec3(
x * (1.0 / u_shadowsRes),
y * (1.0 / u_shadowsRes), 0.0
));
}
}
shadow /= 9;
shadow = shadow * 0.5 + 0.5;
} else {
shadow = 0.5;
}
}
return shadow;
}
#endif // SHADOWS_GLSL_