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import bpy
from math import cos, sin, pi
import colorsys
from random import TWOPI

# Center of sphere.
x_center = 0.0
y_center = 0.0
z_center = 0.0

behreajj

import bpy
from math import cos, sin, fmod
from random import TWOPI


def append_group_inst(nodes, group_name, data=bpy.data, group_creation_func=None, use_fake_user=False, parent=None, custom_color=None):
    group = None
    try:
        group = data.node_groups[group_name]
    except IndexError:

behreajj

from bpy import data as D, context as C
import bmesh
import math


def fibonacci_points(count=32, radius=0.5):
    """
    Distributes points on a sphere according to
    the golden ratio, (1.0 + sqrt(5.0)) / 2.0.
    """

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Vec2 = {}
Vec2.__index = Vec2

-- Allow Vec2(3, 4) without new.
setmetatable(Vec2, {
    __call = function (cls, ...)
        return cls.new(...)
    end})

function Vec2.new(x, y)

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import bpy

# Number of cubes on each axis.
count = 7

# Range used with for-loops.
count_range = range(0, count, 1)

# Size of grid.
extents = 2.0

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---Rounds a vector according to its sign.
---@param a table left operand
---@return table
function Vec2.round(a)
    local iy, fy = math.modf(a.y)
    if iy <= 0.0 and fy <= -0.5 then iy = iy - 1
    elseif iy >= 0.0 and fy >= 0.5 then iy = iy + 1 end

    local ix, fx = math.modf(a.x)
    if ix <= 0.0 and fx <= -0.5 then ix = ix - 1

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local dlg = Dialog { title = "Hello World!" }

dlg:check {
    id = "cw",
    label = "Chirality: ",
    text = "Flip y axis.",
    selected = false
}

dlg:button {

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static Vector4 LinearToXyz (in Color c)
{
    // This could also be written as matrix-vector multiplication.
    // Perceptual luminance is the y component.
    return new Vector4 (
        0.41241086f * c.r + 0.35758457f * c.g + 0.1804538f * c.b,
        0.21264935f * c.r + 0.71516913f * c.g + 0.07218152f * c.b,
        0.019331759f * c.r + 0.11919486f * c.g + 0.95039004f * c.b,
        c.a);
}

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byte[ ] stlLut = new byte[256];
byte[ ] ltsLut = new byte[256];

for (int i = 0; i < 256; ++i)
{
    float x = i / 255.0f;
    float y = StandardToLinearChannel (x);
    stlLut[i] = (byte) (0.5f + 255.0f * y);
    float z = LinearToStandardChannel (x);
    ltsLut[i] = (byte) (0.5f + 255.0f * z);

behreajj

using UnityEngine;

[RequireComponent (typeof (SpriteRenderer))]
public class Grayscale : MonoBehaviour
{
    void Start ( )
    {
        SpriteRenderer renderer = GetComponent<SpriteRenderer> ( );
        Sprite sprite = renderer.sprite;
        Texture2D srcTexture = sprite.texture;