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~ | Some map changing

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TheRedShip
2025-01-08 15:11:06 +01:00
parent 8e4d844f38
commit c414888f9e
5 changed files with 49 additions and 54 deletions
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41
shaders/random.glsl
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@ -29,28 +29,21 @@ vec3 randomHemisphereDirection(vec3 normal, inout uint rng_state)
return (direction * sign(dot(normal, direction)));
}
vec3 GetEnvironmentLight(Ray ray)
{
vec3 sun_pos = vec3(-0.5, 0.5, 0.5);
float SunFocus = 1.5;
float SunIntensity = 1;
// vec3 randomHemisphereDirection(vec3 normal, inout uint rng_state)
// {
// float r1 = randomValue(rng_state);
// float r2 = randomValue(rng_state);
// float phi = 2.0 * M_PI * r1;
// float cos_theta = sqrt(1.0 - r2);
// float sin_theta = sqrt(r2);
// // Create orthonormal basis
// vec3 tangent, bitangent;
// if (abs(normal.x) > abs(normal.z)) {
// tangent = normalize(vec3(-normal.y, normal.x, 0.0));
// } else {
// tangent = normalize(vec3(0.0, -normal.z, normal.y));
// }
// bitangent = cross(normal, tangent);
// return normalize(
// tangent * (cos(phi) * sin_theta) +
// bitangent * (sin(phi) * sin_theta) +
// normal * cos_theta
// );
// }
vec3 GroundColour = vec3(0.5, 0.5, 0.5);
vec3 SkyColourHorizon = vec3(135 / 255.0f, 206 / 255.0f, 235 / 255.0f);
vec3 SkyColourZenith = SkyColourHorizon / 2.0;
float skyGradientT = pow(smoothstep(0, 0.4, ray.direction.y), 0.35);
float groundToSkyT = smoothstep(-0.01, 0, ray.direction.y);
vec3 skyGradient = mix(SkyColourHorizon, SkyColourZenith, skyGradientT);
float sun = pow(max(0, dot(ray.direction, sun_pos.xyz)), SunFocus) * SunIntensity;
// Combine ground, sky, and sun
vec3 composite = mix(GroundColour, skyGradient, groundToSkyT) + sun * int(groundToSkyT >= 1);
return composite;
}