# 2019.03.14 -> 2022.10.06 ->

# deprecated format
# // signed distance field compositing
# // *spatial culling shader code
# _matrix   = Matrix.TR(oriel.pos, oriel.rot)
# _dim      = oriel.dimensions
# MAX_STEPS = 256±
# MAX_DIST  = 100±
# BoxSD(pos, dim):
#   q     = abs(pos) - dim
#   step  = length(max(q, 0.0))
#   step += min(max(q.x, max(q.y, q.z)), 0.0)
#   return step
# Raymarch(origin, dir):
#   origin = mul(origin, _matrix)
#   dir    = mul(dir,    _matrix)
#   dist   = 0.0
#   for (0..MAX_STEPS):
#     pos  = origin + dist * dir
#     step = BoxSD(pos, _dim / 2.0)
#     if (step < 0.0001 or dist > MAX_DIST):
#       then break loop
#     dist += step
#   return dist
# YourPixelShader():
#   pos = pixel.worldposition
#   dir = normalize(pos - cam)
#   // cull around
#   dist = Raymarch(cam, dir) 
#   clip(100 - (dist + 1))
#   // cull between
#   oriel = cam + dist * dir
#   clip(dist(cam, pos) - dist(cam, oriel))
#   ...

# new format *TODO
input

data

frame

design