mebiusbox

import matplotlib
matplotlib.use('TkAgg')

from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib.figure import Figure
import tkinter as tk
import tkinter.messagebox as tkmsg
import numpy as np

# https://github.com/ampas/aces-dev/blob/master/transforms/ctl/README-MATRIX.md

mebiusbox

analytic

# variables go here...
# only floats supported right now.
# [type] [name] [min val] [max val] [default val]

::begin parameters
float albedo 0 1 1
float roughness 0 1 1
::end parameters

mebiusbox

analytic

# variables go here...
# only floats supported right now.
# [type] [name] [min val] [max val] [default val]

::begin parameters
float roughness 0 1 1
float f0 0 1 0.04
::end parameters

mebiusbox

analytic

# variables go here...
# only floats supported right now.
# [type] [name] [min val] [max val] [default val]

::begin parameters
float roughness 0 1 1
float f0 0 1 0.04
bool fresnel 1

mebiusbox

// BRDFs

#define PI 3.14159265359f
#define PI2 6.28318530718f
#define RECIPROCAL_PI 0.31830988618f
#define RECIPROCAL_PI2 0.15915494f
#define LOG2 1.442695f
#define EPSILON 1e-6
#define pow2(x) ((x)*(x))
#define pow3(x) pow2(x)*(x)