spikey boye

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params (8)

speed 0.35

brightness 1.15

dreamWarp 0.45

chrome 0.80

eyeScale 1.00

grassDetail 0.85

organismCount 5.00

cameraDrift 0.25

.fs source · isf not running

/*{
  "DESCRIPTION": "Silicon Pastoral Dreams — an uncanny CGI landscape of wet grass, chrome organisms, floating eyes, glass ribbons and reflective spheres.",
  "CREDIT": "OpenAI for Circa",
  "CATEGORIES": [
    "Generator",
    "Surreal",
    "Landscape"
  ],
  "INPUTS": [
    {
      "NAME": "speed",
      "TYPE": "float",
      "DEFAULT": 0.35,
      "MIN": 0.0,
      "MAX": 2.0
    },
    {
      "NAME": "brightness",
      "TYPE": "float",
      "DEFAULT": 1.15,
      "MIN": 0.4,
      "MAX": 2.0
    },
    {
      "NAME": "dreamWarp",
      "TYPE": "float",
      "DEFAULT": 0.45,
      "MIN": 0.0,
      "MAX": 1.0
    },
    {
      "NAME": "chrome",
      "TYPE": "float",
      "DEFAULT": 0.8,
      "MIN": 0.0,
      "MAX": 1.0
    },
    {
      "NAME": "eyeScale",
      "TYPE": "float",
      "DEFAULT": 1.0,
      "MIN": 0.4,
      "MAX": 1.8
    },
    {
      "NAME": "grassDetail",
      "TYPE": "float",
      "DEFAULT": 0.85,
      "MIN": 0.0,
      "MAX": 1.0
    },
    {
      "NAME": "organismCount",
      "TYPE": "float",
      "DEFAULT": 5.0,
      "MIN": 1.0,
      "MAX": 8.0
    },
    {
      "NAME": "cameraDrift",
      "TYPE": "float",
      "DEFAULT": 0.25,
      "MIN": 0.0,
      "MAX": 1.0
    }
  ]
}*/

#define PI 3.14159265359
#define TAU 6.28318530718
#define MAX_ORGANISMS 8
#define MAX_SPINES 18

float saturate(float x)
{
    return clamp(x, 0.0, 1.0);
}

float hash21(vec2 p)
{
    p = fract(p * vec2(123.34, 456.21));
    p += dot(p, p + 45.32);
    return fract(p.x * p.y);
}

float noise21(vec2 p)
{
    vec2 i = floor(p);
    vec2 f = fract(p);

    f = f * f * (3.0 - 2.0 * f);

    float a = hash21(i);
    float b = hash21(i + vec2(1.0, 0.0));
    float c = hash21(i + vec2(0.0, 1.0));
    float d = hash21(i + vec2(1.0, 1.0));

    return mix(
        mix(a, b, f.x),
        mix(c, d, f.x),
        f.y
    );
}

float fbm(vec2 p)
{
    float value = 0.0;
    float amplitude = 0.5;

    for (int i = 0; i < 5; i++)
    {
        value += noise21(p) * amplitude;
        p = p * 2.03 + vec2(13.1, 7.7);
        amplitude *= 0.5;
    }

    return value;
}

mat2 rot(float a)
{
    float s = sin(a);
    float c = cos(a);
    return mat2(c, -s, s, c);
}

float sdCircle(vec2 p, float r)
{
    return length(p) - r;
}

float sdEllipse(vec2 p, vec2 r)
{
    return (length(p / r) - 1.0) * min(r.x, r.y);
}

float sdCapsule(vec2 p, vec2 a, vec2 b, float r)
{
    vec2 pa = p - a;
    vec2 ba = b - a;
    float h = saturate(dot(pa, ba) / dot(ba, ba));
    return length(pa - ba * h) - r;
}

vec3 skyColor(float y)
{
    vec3 horizon = vec3(0.72, 0.90, 1.03);
    vec3 zenith = vec3(0.18, 0.59, 0.96);

    float gradient = smoothstep(0.37, 1.0, y);
    return mix(horizon, zenith, gradient);
}

vec3 chromeColor(vec2 normal, float fresnel, float phase)
{
    float reflectionBand =
        0.5 +
        0.5 * sin(
            normal.y * 11.0 +
            normal.x * 4.0 +
            phase
        );

    vec3 darkMetal = vec3(0.015, 0.035, 0.055);
    vec3 skyMetal = vec3(0.42, 0.77, 1.00);
    vec3 whiteMetal = vec3(0.92, 0.98, 1.00);

    vec3 col = mix(darkMetal, skyMetal, reflectionBand);
    col = mix(col, whiteMetal, pow(reflectionBand, 8.0));

    return mix(col, vec3(0.02, 0.06, 0.08), fresnel * 0.25);
}

vec3 renderGrass(vec2 uv, vec2 aspectUV, float horizon, float t)
{
    float groundDepth =
        0.095 /
        max(horizon - uv.y, 0.008);

    float worldX =
        (aspectUV.x - 0.5) *
        groundDepth;

    vec2 world = vec2(
        worldX,
        groundDepth + t * 0.025
    );

    float broadNoise = fbm(world * vec2(0.8, 0.18));
    float fineNoise = fbm(world * vec2(5.0, 1.1));

    vec3 shadowGrass = vec3(0.008, 0.095, 0.018);
    vec3 midGrass = vec3(0.025, 0.31, 0.045);
    vec3 lightGrass = vec3(0.18, 0.53, 0.08);

    vec3 col = mix(shadowGrass, midGrass, broadNoise);
    col = mix(col, lightGrass, fineNoise * 0.42);

    float blades =
        sin(world.x * 75.0 + world.y * 4.0) *
        sin(world.x * 31.0 - world.y * 8.0);

    blades = pow(max(blades, 0.0), 7.0);
    blades *= smoothstep(0.3, 2.5, groundDepth);

    float bladeNoise =
        hash21(
            floor(
                world *
                vec2(120.0, 18.0)
            )
        );

    col +=
        vec3(0.19, 0.48, 0.055) *
        blades *
        bladeNoise *
        grassDetail;

    float wetGlints =
        pow(
            max(
                0.0,
                sin(world.x * 117.0 + world.y * 11.0)
            ),
            25.0
        );

    wetGlints *=
        step(
            0.91,
            hash21(floor(world * 45.0))
        );

    col +=
        vec3(0.62, 0.92, 0.92) *
        wetGlints *
        grassDetail *
        0.7;

    float distanceFade =
        smoothstep(0.0, 1.7, groundDepth);

    col = mix(
        vec3(0.21, 0.42, 0.12),
        col,
        distanceFade
    );

    return col;
}

vec3 renderReflectiveSphere(
    vec2 uv,
    vec2 center,
    float radius,
    float phase,
    vec3 background
)
{
    vec2 p = (uv - center) / radius;
    float r2 = dot(p, p);

    float mask =
        1.0 -
        smoothstep(0.94, 1.01, sqrt(r2));

    if (mask <= 0.0)
    {
        return background;
    }

    float z = sqrt(max(0.0, 1.0 - r2));
    vec3 normal = normalize(vec3(p, z));

    float fresnel =
        pow(
            1.0 - max(normal.z, 0.0),
            3.0
        );

    float reflectedY =
        normal.y * 0.5 + 0.5;

    vec3 reflection = skyColor(reflectedY);

    float groundReflection =
        smoothstep(-0.05, -0.7, normal.y);

    reflection = mix(
        reflection,
        vec3(0.015, 0.19, 0.025),
        groundReflection
    );

    float darkBand =
        exp(
            -18.0 *
            abs(normal.y + 0.17)
        );

    reflection *= 1.0 - darkBand * 0.78;

    float horizonBand =
        exp(
            -45.0 *
            abs(normal.y + 0.02)
        );

    reflection +=
        vec3(0.82, 0.97, 1.0) *
        horizonBand;

    float highlight =
        pow(
            max(
                0.0,
                dot(
                    normal,
                    normalize(vec3(-0.65, 0.72, 1.0))
                )
            ),
            45.0
        );

    reflection += vec3(1.0) * highlight * 1.8;
    reflection += vec3(0.20, 0.55, 0.72) * fresnel;

    float edge =
        exp(
            -28.0 *
            abs(sqrt(r2) - 1.0)
        );

    reflection +=
        vec3(0.76, 0.96, 1.0) *
        edge *
        0.55;

    return mix(background, reflection, mask);
}

vec3 renderEyeOrganism(
    vec2 uv,
    vec2 center,
    float scale,
    float phase,
    float depth,
    vec3 background
)
{
    vec2 p = (uv - center) / scale;

    float floatMotion =
        sin(phase * 0.7) * 0.025;

    p.y += floatMotion;

    float bodyRadius =
        0.29 +
        0.018 * sin(phase * 1.3);

    float bodyDistance =
        sdCircle(p, bodyRadius);

    float bodyMask =
        1.0 -
        smoothstep(-0.01, 0.014, bodyDistance);

    float bodyGlow =
        exp(
            -13.0 *
            max(bodyDistance, 0.0)
        );

    vec3 col = background;

    col +=
        vec3(0.08, 0.34, 0.28) *
        bodyGlow *
        0.25;

    vec2 sphereP = p / bodyRadius;
    float sphereR2 = dot(sphereP, sphereP);
    float sphereZ = sqrt(max(0.0, 1.0 - sphereR2));

    vec3 bodyNormal =
        normalize(vec3(sphereP, sphereZ));

    float bodyLight =
        saturate(
            dot(
                bodyNormal,
                normalize(vec3(-0.6, 0.8, 1.0))
            )
        );

    float bodyFresnel =
        pow(
            1.0 - max(bodyNormal.z, 0.0),
            3.0
        );

    vec3 bodyColor = mix(
        vec3(0.002, 0.018, 0.017),
        vec3(0.015, 0.17, 0.11),
        bodyLight
    );

    bodyColor +=
        vec3(0.02, 0.28, 0.25) *
        bodyFresnel;

    float bodyHighlight =
        pow(bodyLight, 18.0);

    bodyColor +=
        vec3(0.63, 0.95, 0.86) *
        bodyHighlight *
        0.6;

    col = mix(col, bodyColor, bodyMask);

    /*
       Organic spikes surrounding the creature
    */

    for (int i = 0; i < MAX_SPINES; i++)
    {
        float fi = float(i);
        float angle =
            fi / float(MAX_SPINES) * TAU +
            0.09 * sin(phase + fi);

        vec2 direction =
            vec2(cos(angle), sin(angle));

        float spikeLength =
            0.13 +
            0.07 *
            hash21(vec2(fi, depth * 19.0));

        vec2 a = direction * 0.22;
        vec2 b =
            direction *
            (0.34 + spikeLength);

        float spike =
            sdCapsule(
                p,
                a,
                b,
                mix(0.035, 0.014, length(p))
            );

        float spikeMask =
            1.0 -
            smoothstep(-0.008, 0.009, spike);

        float spikeShade =
            0.35 +
            0.65 *
            saturate(
                direction.y * 0.5 + 0.5
            );

        vec3 spikeColor = mix(
            vec3(0.002, 0.012, 0.013),
            vec3(0.025, 0.19, 0.15),
            spikeShade
        );

        spikeColor +=
            vec3(0.42, 0.78, 0.65) *
            pow(spikeShade, 7.0) *
            chrome;

        col = mix(
            col,
            spikeColor,
            spikeMask
        );
    }

    /*
       Dimensional eyeball
    */

    vec2 eyeP = p - vec2(
        0.055 * sin(phase * 0.28),
        0.012 * cos(phase * 0.37)
    );

    eyeP.x *= 0.92;

    float eyeDistance =
        sdCircle(eyeP, 0.185);

    float eyeMask =
        1.0 -
        smoothstep(-0.008, 0.01, eyeDistance);

    vec2 eyeSphereP = eyeP / 0.185;
    float eyeR2 = dot(eyeSphereP, eyeSphereP);
    float eyeZ = sqrt(max(0.0, 1.0 - eyeR2));

    vec3 eyeNormal =
        normalize(vec3(eyeSphereP, eyeZ));

    float eyeLight =
        saturate(
            dot(
                eyeNormal,
                normalize(vec3(-0.55, 0.7, 1.0))
            )
        );

    vec3 sclera = mix(
        vec3(0.44, 0.52, 0.48),
        vec3(0.98, 0.96, 0.83),
        eyeLight
    );

    float irisDistance =
        length(
            eyeP -
            vec2(
                0.025 * sin(phase * 0.4),
                0.012 * cos(phase * 0.31)
            )
        );

    float iris =
        1.0 -
        smoothstep(
            0.072,
            0.09,
            irisDistance
        );

    float pupil =
        1.0 -
        smoothstep(
            0.025,
            0.038,
            irisDistance
        );

    float irisTexture =
        0.5 +
        0.5 *
        sin(
            atan(eyeP.y, eyeP.x) * 22.0 +
            irisDistance * 170.0
        );

    vec3 irisColor = mix(
        vec3(0.005, 0.07, 0.10),
        vec3(0.16, 0.64, 0.76),
        irisTexture
    );

    irisColor +=
        vec3(0.55, 0.89, 0.92) *
        pow(irisTexture, 8.0);

    vec3 eyeColor = sclera;
    eyeColor = mix(eyeColor, irisColor, iris);
    eyeColor = mix(
        eyeColor,
        vec3(0.001, 0.006, 0.009),
        pupil
    );

    float eyeHighlight =
        1.0 -
        smoothstep(
            0.017,
            0.035,
            length(
                eyeP -
                vec2(-0.065, 0.07)
            )
        );

    eyeColor +=
        vec3(1.0, 1.0, 0.95) *
        eyeHighlight *
        1.5;

    float eyeRim =
        exp(
            -45.0 *
            abs(eyeDistance)
        );

    eyeColor +=
        vec3(0.08, 0.15, 0.12) *
        eyeRim;

    col = mix(col, eyeColor, eyeMask);

    return col;
}

vec3 renderGlassRibbon(
    vec2 uv,
    float offset,
    float amplitude,
    float width,
    float phase,
    vec3 background
)
{
    float curve =
        offset +
        sin(
            uv.x * 5.0 +
            phase
        ) *
        amplitude;

    curve +=
        sin(
            uv.x * 11.0 -
            phase * 0.43
        ) *
        amplitude *
        0.18;

    float distanceToCurve =
        abs(uv.y - curve);

    float ribbon =
        1.0 -
        smoothstep(
            width,
            width + 0.008,
            distanceToCurve
        );

    float rim =
        exp(
            -85.0 *
            abs(distanceToCurve - width)
        );

    float innerReflection =
        0.5 +
        0.5 *
        sin(
            distanceToCurve * 260.0 +
            uv.x * 14.0
        );

    vec3 glassColor = mix(
        vec3(0.06, 0.31, 0.43),
        vec3(0.74, 0.96, 1.0),
        innerReflection
    );

    glassColor *=
        mix(0.35, 0.82, chrome);

    vec3 col = mix(
        background,
        glassColor,
        ribbon * 0.58
    );

    col +=
        vec3(0.55, 0.92, 1.0) *
        rim *
        chrome;

    return col;
}

vec3 renderBoneChain(
    vec2 uv,
    float offset,
    float amplitude,
    float phase,
    vec3 background
)
{
    float curve =
        offset +
        sin(
            uv.x * 4.8 +
            phase
        ) *
        amplitude;

    vec2 cellUV = vec2(
        uv.x * 28.0,
        (uv.y - curve) * 28.0
    );

    vec2 cell = fract(cellUV) - 0.5;
    float cellIndex = floor(cellUV.x);

    float randomRotation =
        (hash21(vec2(cellIndex, 4.0)) - 0.5) *
        1.1;

    cell *= rot(randomRotation);

    float vertebra =
        sdCapsule(
            cell,
            vec2(-0.24, 0.0),
            vec2(0.24, 0.0),
            0.095
        );

    float upperBranch =
        sdCapsule(
            cell,
            vec2(-0.04, 0.02),
            vec2(-0.18, 0.31),
            0.052
        );

    float lowerBranch =
        sdCapsule(
            cell,
            vec2(0.04, -0.02),
            vec2(0.17, -0.29),
            0.047
        );

    float boneDistance =
        min(
            vertebra,
            min(upperBranch, lowerBranch)
        );

    float curveMask =
        1.0 -
        smoothstep(
            0.035,
            0.05,
            abs(uv.y - curve)
        );

    float boneMask =
        (
            1.0 -
            smoothstep(
                -0.008,
                0.012,
                boneDistance
            )
        ) *
        curveMask;

    float boneShade =
        smoothstep(
            -0.15,
            0.22,
            cell.y
        );

    vec3 boneColor = mix(
        vec3(0.10, 0.16, 0.18),
        vec3(0.88, 0.96, 0.93),
        boneShade
    );

    boneColor +=
        vec3(0.35, 0.69, 0.83) *
        pow(boneShade, 7.0) *
        chrome;

    float shadow =
        exp(
            -22.0 *
            abs(uv.y - curve + 0.012)
        );

    vec3 col = background;
    col *= 1.0 - shadow * 0.08;
    col = mix(col, boneColor, boneMask);

    return col;
}

void main()
{
    vec2 uv = isf_FragNormCoord.xy;
    vec2 resolution = RENDERSIZE.xy;

    float aspect =
        resolution.x /
        max(resolution.y, 1.0);

    vec2 sceneUV = uv;
    sceneUV.x =
        (sceneUV.x - 0.5) *
        aspect +
        0.5;

    float t = TIME * speed;

    sceneUV.x +=
        sin(t * 0.11) *
        cameraDrift *
        0.035;

    sceneUV.y +=
        cos(t * 0.09) *
        cameraDrift *
        0.012;

    float horizon = 0.43;

    vec3 color = skyColor(uv.y);

    /*
       Soft atmospheric CGI haze
    */

    float cloudNoise =
        fbm(
            vec2(
                sceneUV.x * 2.2 + t * 0.015,
                uv.y * 3.2
            )
        );

    float haze =
        cloudNoise *
        smoothstep(0.42, 0.75, uv.y) *
        0.12;

    color +=
        vec3(0.58, 0.79, 0.94) *
        haze;

    float horizonGlow =
        exp(
            -19.0 *
            abs(uv.y - horizon)
        );

    color +=
        vec3(0.42, 0.78, 0.96) *
        horizonGlow *
        0.2;

    /*
       Wet photorealistic grass plane
    */

    if (uv.y < horizon)
    {
        vec3 grass = renderGrass(
            uv,
            sceneUV,
            horizon,
            t
        );

        float groundMask =
            smoothstep(
                horizon,
                horizon - 0.015,
                uv.y
            );

        color = mix(
            color,
            grass,
            groundMask
        );
    }

    /*
       Distant smooth grassy mounds
    */

    float hill =
        horizon +
        0.025 +
        0.035 *
        sin(sceneUV.x * 8.0) +
        0.018 *
        sin(sceneUV.x * 17.0 + 2.0);

    float hillMask =
        1.0 -
        smoothstep(
            hill,
            hill + 0.008,
            uv.y
        );

    vec3 hillColor = mix(
        vec3(0.025, 0.19, 0.03),
        vec3(0.18, 0.42, 0.055),
        fbm(sceneUV * 12.0)
    );

    color = mix(
        color,
        hillColor,
        hillMask *
        smoothstep(0.36, 0.47, uv.y)
    );

    /*
       Monumental glass loops
    */

    color = renderGlassRibbon(
        sceneUV,
        0.59,
        0.19,
        0.018,
        t * 0.22,
        color
    );

    color = renderGlassRibbon(
        sceneUV,
        0.66,
        0.13,
        0.009,
        -t * 0.17 + 2.4,
        color
    );

    /*
       Skeletal organic ribbons
    */

    color = renderBoneChain(
        sceneUV,
        0.61,
        0.15,
        t * 0.18,
        color
    );

    color = renderBoneChain(
        sceneUV,
        0.46,
        0.10,
        -t * 0.12 + 1.7,
        color
    );

    color = renderBoneChain(
        sceneUV,
        0.34,
        0.075,
        t * 0.15 + 3.1,
        color
    );

    /*
       Floating chrome memory-spheres
    */

    color = renderReflectiveSphere(
        sceneUV,
        vec2(
            0.16,
            0.82 +
            0.012 * sin(t)
        ),
        0.045,
        t,
        color
    );

    color = renderReflectiveSphere(
        sceneUV,
        vec2(
            0.39,
            0.66 +
            0.018 * sin(t * 0.7 + 2.0)
        ),
        0.037,
        t + 2.0,
        color
    );

    color = renderReflectiveSphere(
        sceneUV,
        vec2(
            0.77,
            0.73 +
            0.015 * cos(t * 0.8)
        ),
        0.026,
        t + 4.0,
        color
    );

    /*
       Biomechanical eye characters
    */

    for (int i = 0; i < MAX_ORGANISMS; i++)
    {
        float fi = float(i);
        float enabled =
            1.0 -
            step(organismCount, fi);

        float seed = fi * 17.31 + 6.0;
        float depth =
            hash21(vec2(seed, 8.2));

        float x = mix(
            0.12,
            0.91,
            hash21(vec2(seed, 2.1))
        );

        float y = mix(
            0.29,
            0.62,
            hash21(vec2(seed, 4.9))
        );

        x +=
            sin(t * 0.18 + seed) *
            0.016 *
            dreamWarp;

        y +=
            cos(t * 0.23 + seed) *
            0.012 *
            dreamWarp;

        float scale =
            mix(0.032, 0.095, depth) *
            eyeScale;

        vec3 organism = renderEyeOrganism(
            sceneUV,
            vec2(x, y),
            scale,
            t + seed,
            depth,
            color
        );

        color = mix(
            color,
            organism,
            enabled
        );
    }

    /*
       Subtle dream-lens distortion
    */

    float spectral =
        sin(
            uv.x * 17.0 +
            uv.y * 11.0 +
            t
        );

    color.r +=
        spectral *
        dreamWarp *
        0.006;

    color.b -=
        spectral *
        dreamWarp *
        0.004;

    float vignette =
        1.0 -
        smoothstep(
            0.46,
            0.93,
            length(
                (uv - 0.5) *
                vec2(0.82, 1.0)
            )
        );

    color *= 0.88 + 0.12 * vignette;
    color *= brightness;

    /*
       Glossy photographic response
    */

    color = max(color, vec3(0.0));
    color = color / (0.82 + color * 0.24);
    color = pow(color, vec3(0.91));

    gl_FragColor = vec4(color, 1.0);
}

/*{
  "DESCRIPTION": "Silicon Pastoral Dreams — an uncanny CGI landscape of wet grass, chrome organisms, floating eyes, glass ribbons and reflective spheres.",
  "CREDIT": "OpenAI for Circa",
  "CATEGORIES": [
    "Generator",
    "Surreal",
    "Landscape"
  ],
  "INPUTS": [
    {
      "NAME": "speed",
      "TYPE": "float",
      "DEFAULT": 0.35,
      "MIN": 0.0,
      "MAX": 2.0
    },
    {
      "NAME": "brightness",
      "TYPE": "float",
      "DEFAULT": 1.15,
      "MIN": 0.4,
      "MAX": 2.0
    },
    {
      "NAME": "dreamWarp",
      "TYPE": "float",
      "DEFAULT": 0.45,
      "MIN": 0.0,
      "MAX": 1.0
    },
    {
      "NAME": "chrome",
      "TYPE": "float",
      "DEFAULT": 0.8,
      "MIN": 0.0,
      "MAX": 1.0
    },
    {
      "NAME": "eyeScale",
      "TYPE": "float",
      "DEFAULT": 1.0,
      "MIN": 0.4,
      "MAX": 1.8
    },
    {
      "NAME": "grassDetail",
      "TYPE": "float",
      "DEFAULT": 0.85,
      "MIN": 0.0,
      "MAX": 1.0
    },
    {
      "NAME": "organismCount",
      "TYPE": "float",
      "DEFAULT": 5.0,
      "MIN": 1.0,
      "MAX": 8.0
    },
    {
      "NAME": "cameraDrift",
      "TYPE": "float",
      "DEFAULT": 0.25,
      "MIN": 0.0,
      "MAX": 1.0
    }
  ]
}*/

#define PI 3.14159265359
#define TAU 6.28318530718
#define MAX_ORGANISMS 8
#define MAX_SPINES 18

float saturate(float x)
{
    return clamp(x, 0.0, 1.0);
}

float hash21(vec2 p)
{
    p = fract(p * vec2(123.34, 456.21));
    p += dot(p, p + 45.32);
    return fract(p.x * p.y);
}

float noise21(vec2 p)
{
    vec2 i = floor(p);
    vec2 f = fract(p);

f = f * f * (3.0 - 2.0 * f);

float a = hash21(i);
    float b = hash21(i + vec2(1.0, 0.0));
    float c = hash21(i + vec2(0.0, 1.0));
    float d = hash21(i + vec2(1.0, 1.0));

return mix(
        mix(a, b, f.x),
        mix(c, d, f.x),
        f.y
    );
}

float fbm(vec2 p)
{
    float value = 0.0;
    float amplitude = 0.5;

for (int i = 0; i < 5; i++)
    {
        value += noise21(p) * amplitude;
        p = p * 2.03 + vec2(13.1, 7.7);
        amplitude *= 0.5;
    }

return value;
}

mat2 rot(float a)
{
    float s = sin(a);
    float c = cos(a);
    return mat2(c, -s, s, c);
}

float sdCircle(vec2 p, float r)
{
    return length(p) - r;
}

float sdEllipse(vec2 p, vec2 r)
{
    return (length(p / r) - 1.0) * min(r.x, r.y);
}

float sdCapsule(vec2 p, vec2 a, vec2 b, float r)
{
    vec2 pa = p - a;
    vec2 ba = b - a;
    float h = saturate(dot(pa, ba) / dot(ba, ba));
    return length(pa - ba * h) - r;
}

vec3 skyColor(float y)
{
    vec3 horizon = vec3(0.72, 0.90, 1.03);
    vec3 zenith = vec3(0.18, 0.59, 0.96);

float gradient = smoothstep(0.37, 1.0, y);
    return mix(horizon, zenith, gradient);
}

vec3 chromeColor(vec2 normal, float fresnel, float phase)
{
    float reflectionBand =
        0.5 +
        0.5 * sin(
            normal.y * 11.0 +
            normal.x * 4.0 +
            phase
        );

vec3 darkMetal = vec3(0.015, 0.035, 0.055);
    vec3 skyMetal = vec3(0.42, 0.77, 1.00);
    vec3 whiteMetal = vec3(0.92, 0.98, 1.00);

vec3 col = mix(darkMetal, skyMetal, reflectionBand);
    col = mix(col, whiteMetal, pow(reflectionBand, 8.0));

return mix(col, vec3(0.02, 0.06, 0.08), fresnel * 0.25);
}

vec3 renderGrass(vec2 uv, vec2 aspectUV, float horizon, float t)
{
    float groundDepth =
        0.095 /
        max(horizon - uv.y, 0.008);

float worldX =
        (aspectUV.x - 0.5) *
        groundDepth;

vec2 world = vec2(
        worldX,
        groundDepth + t * 0.025
    );

float broadNoise = fbm(world * vec2(0.8, 0.18));
    float fineNoise = fbm(world * vec2(5.0, 1.1));

vec3 shadowGrass = vec3(0.008, 0.095, 0.018);
    vec3 midGrass = vec3(0.025, 0.31, 0.045);
    vec3 lightGrass = vec3(0.18, 0.53, 0.08);

vec3 col = mix(shadowGrass, midGrass, broadNoise);
    col = mix(col, lightGrass, fineNoise * 0.42);

float blades =
        sin(world.x * 75.0 + world.y * 4.0) *
        sin(world.x * 31.0 - world.y * 8.0);

blades = pow(max(blades, 0.0), 7.0);
    blades *= smoothstep(0.3, 2.5, groundDepth);

float bladeNoise =
        hash21(
            floor(
                world *
                vec2(120.0, 18.0)
            )
        );

col +=
        vec3(0.19, 0.48, 0.055) *
        blades *
        bladeNoise *
        grassDetail;

float wetGlints =
        pow(
            max(
                0.0,
                sin(world.x * 117.0 + world.y * 11.0)
            ),
            25.0
        );

wetGlints *=
        step(
            0.91,
            hash21(floor(world * 45.0))
        );

col +=
        vec3(0.62, 0.92, 0.92) *
        wetGlints *
        grassDetail *
        0.7;

float distanceFade =
        smoothstep(0.0, 1.7, groundDepth);

col = mix(
        vec3(0.21, 0.42, 0.12),
        col,
        distanceFade
    );

return col;
}

vec3 renderReflectiveSphere(
    vec2 uv,
    vec2 center,
    float radius,
    float phase,
    vec3 background
)
{
    vec2 p = (uv - center) / radius;
    float r2 = dot(p, p);

float mask =
        1.0 -
        smoothstep(0.94, 1.01, sqrt(r2));

if (mask <= 0.0)
    {
        return background;
    }

float z = sqrt(max(0.0, 1.0 - r2));
    vec3 normal = normalize(vec3(p, z));

float fresnel =
        pow(
            1.0 - max(normal.z, 0.0),
            3.0
        );

float reflectedY =
        normal.y * 0.5 + 0.5;

vec3 reflection = skyColor(reflectedY);

float groundReflection =
        smoothstep(-0.05, -0.7, normal.y);

reflection = mix(
        reflection,
        vec3(0.015, 0.19, 0.025),
        groundReflection
    );

float darkBand =
        exp(
            -18.0 *
            abs(normal.y + 0.17)
        );

reflection *= 1.0 - darkBand * 0.78;

float horizonBand =
        exp(
            -45.0 *
            abs(normal.y + 0.02)
        );

reflection +=
        vec3(0.82, 0.97, 1.0) *
        horizonBand;

float highlight =
        pow(
            max(
                0.0,
                dot(
                    normal,
                    normalize(vec3(-0.65, 0.72, 1.0))
                )
            ),
            45.0
        );

reflection += vec3(1.0) * highlight * 1.8;
    reflection += vec3(0.20, 0.55, 0.72) * fresnel;

float edge =
        exp(
            -28.0 *
            abs(sqrt(r2) - 1.0)
        );

reflection +=
        vec3(0.76, 0.96, 1.0) *
        edge *
        0.55;

return mix(background, reflection, mask);
}

vec3 renderEyeOrganism(
    vec2 uv,
    vec2 center,
    float scale,
    float phase,
    float depth,
    vec3 background
)
{
    vec2 p = (uv - center) / scale;

float floatMotion =
        sin(phase * 0.7) * 0.025;

p.y += floatMotion;

float bodyRadius =
        0.29 +
        0.018 * sin(phase * 1.3);

float bodyDistance =
        sdCircle(p, bodyRadius);

float bodyMask =
        1.0 -
        smoothstep(-0.01, 0.014, bodyDistance);

float bodyGlow =
        exp(
            -13.0 *
            max(bodyDistance, 0.0)
        );

vec3 col = background;

col +=
        vec3(0.08, 0.34, 0.28) *
        bodyGlow *
        0.25;

vec2 sphereP = p / bodyRadius;
    float sphereR2 = dot(sphereP, sphereP);
    float sphereZ = sqrt(max(0.0, 1.0 - sphereR2));

vec3 bodyNormal =
        normalize(vec3(sphereP, sphereZ));

float bodyLight =
        saturate(
            dot(
                bodyNormal,
                normalize(vec3(-0.6, 0.8, 1.0))
            )
        );

float bodyFresnel =
        pow(
            1.0 - max(bodyNormal.z, 0.0),
            3.0
        );

vec3 bodyColor = mix(
        vec3(0.002, 0.018, 0.017),
        vec3(0.015, 0.17, 0.11),
        bodyLight
    );

bodyColor +=
        vec3(0.02, 0.28, 0.25) *
        bodyFresnel;

float bodyHighlight =
        pow(bodyLight, 18.0);

bodyColor +=
        vec3(0.63, 0.95, 0.86) *
        bodyHighlight *
        0.6;

col = mix(col, bodyColor, bodyMask);

/*
       Organic spikes surrounding the creature
    */

for (int i = 0; i < MAX_SPINES; i++)
    {
        float fi = float(i);
        float angle =
            fi / float(MAX_SPINES) * TAU +
            0.09 * sin(phase + fi);

vec2 direction =
            vec2(cos(angle), sin(angle));

float spikeLength =
            0.13 +
            0.07 *
            hash21(vec2(fi, depth * 19.0));

vec2 a = direction * 0.22;
        vec2 b =
            direction *
            (0.34 + spikeLength);

float spike =
            sdCapsule(
                p,
                a,
                b,
                mix(0.035, 0.014, length(p))
            );

float spikeMask =
            1.0 -
            smoothstep(-0.008, 0.009, spike);

float spikeShade =
            0.35 +
            0.65 *
            saturate(
                direction.y * 0.5 + 0.5
            );

vec3 spikeColor = mix(
            vec3(0.002, 0.012, 0.013),
            vec3(0.025, 0.19, 0.15),
            spikeShade
        );

spikeColor +=
            vec3(0.42, 0.78, 0.65) *
            pow(spikeShade, 7.0) *
            chrome;

col = mix(
            col,
            spikeColor,
            spikeMask
        );
    }

/*
       Dimensional eyeball
    */

vec2 eyeP = p - vec2(
        0.055 * sin(phase * 0.28),
        0.012 * cos(phase * 0.37)
    );

eyeP.x *= 0.92;

float eyeDistance =
        sdCircle(eyeP, 0.185);

float eyeMask =
        1.0 -
        smoothstep(-0.008, 0.01, eyeDistance);

vec2 eyeSphereP = eyeP / 0.185;
    float eyeR2 = dot(eyeSphereP, eyeSphereP);
    float eyeZ = sqrt(max(0.0, 1.0 - eyeR2));

vec3 eyeNormal =
        normalize(vec3(eyeSphereP, eyeZ));

float eyeLight =
        saturate(
            dot(
                eyeNormal,
                normalize(vec3(-0.55, 0.7, 1.0))
            )
        );

vec3 sclera = mix(
        vec3(0.44, 0.52, 0.48),
        vec3(0.98, 0.96, 0.83),
        eyeLight
    );

float irisDistance =
        length(
            eyeP -
            vec2(
                0.025 * sin(phase * 0.4),
                0.012 * cos(phase * 0.31)
            )
        );

float iris =
        1.0 -
        smoothstep(
            0.072,
            0.09,
            irisDistance
        );

float pupil =
        1.0 -
        smoothstep(
            0.025,
            0.038,
            irisDistance
        );

float irisTexture =
        0.5 +
        0.5 *
        sin(
            atan(eyeP.y, eyeP.x) * 22.0 +
            irisDistance * 170.0
        );

vec3 irisColor = mix(
        vec3(0.005, 0.07, 0.10),
        vec3(0.16, 0.64, 0.76),
        irisTexture
    );

irisColor +=
        vec3(0.55, 0.89, 0.92) *
        pow(irisTexture, 8.0);

vec3 eyeColor = sclera;
    eyeColor = mix(eyeColor, irisColor, iris);
    eyeColor = mix(
        eyeColor,
        vec3(0.001, 0.006, 0.009),
        pupil
    );

float eyeHighlight =
        1.0 -
        smoothstep(
            0.017,
            0.035,
            length(
                eyeP -
                vec2(-0.065, 0.07)
            )
        );

eyeColor +=
        vec3(1.0, 1.0, 0.95) *
        eyeHighlight *
        1.5;

float eyeRim =
        exp(
            -45.0 *
            abs(eyeDistance)
        );

eyeColor +=
        vec3(0.08, 0.15, 0.12) *
        eyeRim;

col = mix(col, eyeColor, eyeMask);

return col;
}

vec3 renderGlassRibbon(
    vec2 uv,
    float offset,
    float amplitude,
    float width,
    float phase,
    vec3 background
)
{
    float curve =
        offset +
        sin(
            uv.x * 5.0 +
            phase
        ) *
        amplitude;

curve +=
        sin(
            uv.x * 11.0 -
            phase * 0.43
        ) *
        amplitude *
        0.18;

float distanceToCurve =
        abs(uv.y - curve);

float ribbon =
        1.0 -
        smoothstep(
            width,
            width + 0.008,
            distanceToCurve
        );

float rim =
        exp(
            -85.0 *
            abs(distanceToCurve - width)
        );

float innerReflection =
        0.5 +
        0.5 *
        sin(
            distanceToCurve * 260.0 +
            uv.x * 14.0
        );

vec3 glassColor = mix(
        vec3(0.06, 0.31, 0.43),
        vec3(0.74, 0.96, 1.0),
        innerReflection
    );

glassColor *=
        mix(0.35, 0.82, chrome);

vec3 col = mix(
        background,
        glassColor,
        ribbon * 0.58
    );

col +=
        vec3(0.55, 0.92, 1.0) *
        rim *
        chrome;

return col;
}

vec3 renderBoneChain(
    vec2 uv,
    float offset,
    float amplitude,
    float phase,
    vec3 background
)
{
    float curve =
        offset +
        sin(
            uv.x * 4.8 +
            phase
        ) *
        amplitude;

vec2 cellUV = vec2(
        uv.x * 28.0,
        (uv.y - curve) * 28.0
    );

vec2 cell = fract(cellUV) - 0.5;
    float cellIndex = floor(cellUV.x);

float randomRotation =
        (hash21(vec2(cellIndex, 4.0)) - 0.5) *
        1.1;

cell *= rot(randomRotation);

float vertebra =
        sdCapsule(
            cell,
            vec2(-0.24, 0.0),
            vec2(0.24, 0.0),
            0.095
        );

float upperBranch =
        sdCapsule(
            cell,
            vec2(-0.04, 0.02),
            vec2(-0.18, 0.31),
            0.052
        );

float lowerBranch =
        sdCapsule(
            cell,
            vec2(0.04, -0.02),
            vec2(0.17, -0.29),
            0.047
        );

float boneDistance =
        min(
            vertebra,
            min(upperBranch, lowerBranch)
        );

float curveMask =
        1.0 -
        smoothstep(
            0.035,
            0.05,
            abs(uv.y - curve)
        );

float boneMask =
        (
            1.0 -
            smoothstep(
                -0.008,
                0.012,
                boneDistance
            )
        ) *
        curveMask;

float boneShade =
        smoothstep(
            -0.15,
            0.22,
            cell.y
        );

vec3 boneColor = mix(
        vec3(0.10, 0.16, 0.18),
        vec3(0.88, 0.96, 0.93),
        boneShade
    );

boneColor +=
        vec3(0.35, 0.69, 0.83) *
        pow(boneShade, 7.0) *
        chrome;

float shadow =
        exp(
            -22.0 *
            abs(uv.y - curve + 0.012)
        );

vec3 col = background;
    col *= 1.0 - shadow * 0.08;
    col = mix(col, boneColor, boneMask);

return col;
}

void main()
{
    vec2 uv = isf_FragNormCoord.xy;
    vec2 resolution = RENDERSIZE.xy;

float aspect =
        resolution.x /
        max(resolution.y, 1.0);

vec2 sceneUV = uv;
    sceneUV.x =
        (sceneUV.x - 0.5) *
        aspect +
        0.5;

float t = TIME * speed;

sceneUV.x +=
        sin(t * 0.11) *
        cameraDrift *
        0.035;

sceneUV.y +=
        cos(t * 0.09) *
        cameraDrift *
        0.012;

float horizon = 0.43;

vec3 color = skyColor(uv.y);

/*
       Soft atmospheric CGI haze
    */

float cloudNoise =
        fbm(
            vec2(
                sceneUV.x * 2.2 + t * 0.015,
                uv.y * 3.2
            )
        );

float haze =
        cloudNoise *
        smoothstep(0.42, 0.75, uv.y) *
        0.12;

color +=
        vec3(0.58, 0.79, 0.94) *
        haze;

float horizonGlow =
        exp(
            -19.0 *
            abs(uv.y - horizon)
        );

color +=
        vec3(0.42, 0.78, 0.96) *
        horizonGlow *
        0.2;

/*
       Wet photorealistic grass plane
    */

if (uv.y < horizon)
    {
        vec3 grass = renderGrass(
            uv,
            sceneUV,
            horizon,
            t
        );

float groundMask =
            smoothstep(
                horizon,
                horizon - 0.015,
                uv.y
            );

color = mix(
            color,
            grass,
            groundMask
        );
    }

/*
       Distant smooth grassy mounds
    */

float hill =
        horizon +
        0.025 +
        0.035 *
        sin(sceneUV.x * 8.0) +
        0.018 *
        sin(sceneUV.x * 17.0 + 2.0);

float hillMask =
        1.0 -
        smoothstep(
            hill,
            hill + 0.008,
            uv.y
        );

vec3 hillColor = mix(
        vec3(0.025, 0.19, 0.03),
        vec3(0.18, 0.42, 0.055),
        fbm(sceneUV * 12.0)
    );

color = mix(
        color,
        hillColor,
        hillMask *
        smoothstep(0.36, 0.47, uv.y)
    );

/*
       Monumental glass loops
    */

color = renderGlassRibbon(
        sceneUV,
        0.59,
        0.19,
        0.018,
        t * 0.22,
        color
    );

color = renderGlassRibbon(
        sceneUV,
        0.66,
        0.13,
        0.009,
        -t * 0.17 + 2.4,
        color
    );

/*
       Skeletal organic ribbons
    */

color = renderBoneChain(
        sceneUV,
        0.61,
        0.15,
        t * 0.18,
        color
    );

color = renderBoneChain(
        sceneUV,
        0.46,
        0.10,
        -t * 0.12 + 1.7,
        color
    );

color = renderBoneChain(
        sceneUV,
        0.34,
        0.075,
        t * 0.15 + 3.1,
        color
    );

/*
       Floating chrome memory-spheres
    */

color = renderReflectiveSphere(
        sceneUV,
        vec2(
            0.16,
            0.82 +
            0.012 * sin(t)
        ),
        0.045,
        t,
        color
    );

color = renderReflectiveSphere(
        sceneUV,
        vec2(
            0.39,
            0.66 +
            0.018 * sin(t * 0.7 + 2.0)
        ),
        0.037,
        t + 2.0,
        color
    );

color = renderReflectiveSphere(
        sceneUV,
        vec2(
            0.77,
            0.73 +
            0.015 * cos(t * 0.8)
        ),
        0.026,
        t + 4.0,
        color
    );

/*
       Biomechanical eye characters
    */

for (int i = 0; i < MAX_ORGANISMS; i++)
    {
        float fi = float(i);
        float enabled =
            1.0 -
            step(organismCount, fi);

float seed = fi * 17.31 + 6.0;
        float depth =
            hash21(vec2(seed, 8.2));

float x = mix(
            0.12,
            0.91,
            hash21(vec2(seed, 2.1))
        );

float y = mix(
            0.29,
            0.62,
            hash21(vec2(seed, 4.9))
        );

x +=
            sin(t * 0.18 + seed) *
            0.016 *
            dreamWarp;

y +=
            cos(t * 0.23 + seed) *
            0.012 *
            dreamWarp;

float scale =
            mix(0.032, 0.095, depth) *
            eyeScale;

vec3 organism = renderEyeOrganism(
            sceneUV,
            vec2(x, y),
            scale,
            t + seed,
            depth,
            color
        );

color = mix(
            color,
            organism,
            enabled
        );
    }

/*
       Subtle dream-lens distortion
    */

float spectral =
        sin(
            uv.x * 17.0 +
            uv.y * 11.0 +
            t
        );

color.r +=
        spectral *
        dreamWarp *
        0.006;

color.b -=
        spectral *
        dreamWarp *
        0.004;

float vignette =
        1.0 -
        smoothstep(
            0.46,
            0.93,
            length(
                (uv - 0.5) *
                vec2(0.82, 1.0)
            )
        );

color *= 0.88 + 0.12 * vignette;
    color *= brightness;

/*
       Glossy photographic response
    */

color = max(color, vec3(0.0));
    color = color / (0.82 + color * 0.24);
    color = pow(color, vec3(0.91));

gl_FragColor = vec4(color, 1.0);
}

#lmwpv7hh

⑂ fork it { } json

Silicon Pastoral Dreams — an uncanny CGI landscape of wet grass, chrome organisms, floating eyes, glass ribbons and reflective spheres.

GeneratorSurrealLandscape

by mcnuggetsupremeuser_uploadmade with glslopCC0-1.0credit: OpenAI for Circaactivecreated 2026-08-27 07:36Z49 views1 forks8 params

lineage

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Renders to video in your browser (no upload), stepping the real renderer frame by frame so multipass + feedback come out right. motion auto-animates the shader's own knobs — each export rolls a fresh take (🎲 re-roll, 🔒 to pin one you like). GIF is slower with a tighter length cap; MP4/WebM are faster. Some devices record in real time (noted below if so) — keep the tab visible.

format length max 300 sec at this fps start frame motion fps size quality

caps: ≤1920 per side, ≤60fps, ≤18000 frames (GIF ≤300)

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glslop backlink play/pause + fullscreen size

<iframe src="https://glslop.com/embed/lmwpv7hh" width="512" height="512" style="border:0;max-width:100%;aspect-ratio:1/1" loading="lazy" allowfullscreen title="spikey boye — a shader on glslop"></iframe>

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