def cast_ray(self, orig, direction):
material, intersect = self.scene_intersect(orig, direction)
if material is None:
return self.activeTexture
light_dir = norm(sub(self.light.position, intersect.point))
light_distance = length(sub(self.light.position, intersect.point))
offset_normal = mul(intersect.normal,
1.1) # avoids intercept with itself
shadow_orig = sub(
intersect.point,
offset_normal) if dot(light_dir, intersect.normal) < 0 else sum(
intersect.point, offset_normal)
shadow_material, shadow_intersect = self.scene_intersect(
shadow_orig, light_dir)
shadow_intensity = 0
if shadow_material and length(sub(shadow_intersect.point,
shadow_orig)) < light_distance:
shadow_intensity = 0.9
intensity = self.light.intensity * max(
0, dot(light_dir, intersect.normal)) * (1 - shadow_intensity)
reflection = reflect(light_dir, intersect.normal)
specular_intensity = self.light.intensity * (max(
0, -dot(reflection, direction))**material.spec)
diffuse = material.diffuse * intensity * material.albedo[0]
specular = color(255, 255,
255) * specular_intensity * material.albedo[1]
return diffuse + specular
def cast_ray(self, orig, direction):
#funcion de rayo que nos va a retorar un color
impacted_material = self.scene_intersect(orig, direction)
if impacted_material: #si si impacto retornamos el ojo
#print('impacted material', impacted_material.diffuse)
return impacted_material.diffuse
#return color (200, 0, 0)
else:
#print('color', color(0,0,200))
return color(77, 158, 179)
#MATERIALS
from mathfunc import color
from dataclasses import dataclass
class Material(object):
def __init__(self, diffuse, albedo, spec):
self.diffuse = diffuse
self.albedo = albedo
self.spec = spec
ivory = Material(diffuse=color(100, 100, 80), albedo=(0.6, 0.3, 0.1), spec=5)
brown = Material(diffuse=color(212, 163, 108), albedo=(0.6, 0.3, 0.1), spec=5)
darkbrown = Material(diffuse=color(143, 86, 23),
albedo=(0.6, 0.3, 0.1),
spec=5)
green = Material(diffuse=color(139, 150, 18),
albedo=(0.9, 0.1, 0, 0, 0),
spec=10)
red = Material(diffuse=color(224, 47, 16), albedo=(0.9, 0.1, 0, 0, 0), spec=10)
snow = Material(diffuse=color(209, 232, 237), albedo=(0.6, 0.3, 0.1), spec=5)
coal = Material(diffuse=color(0, 0, 0), albedo=(0.6, 0.3, 0.1), spec=5)
carrot = Material(diffuse=color(227, 110, 14),
albedo=(0.9, 0.1, 0, 0, 0),
spec=10)
white = Material(diffuse=color(255, 255, 255), albedo=(0.6, 0.3, 0.1), spec=5)
yellow = Material(diffuse=color(252, 186, 3),
albedo=(0.9, 0.1, 0, 0, 0),
spec=10)
#MATERIALS
from mathfunc import color
class Material(object):
def __init__(self, diffuse):
self.diffuse = diffuse
ivory = Material(diffuse=color(100, 100, 80))
snow = Material(diffuse=color(209, 232, 237))
coal = Material(diffuse=color(0, 0, 0))
carrot = Material(diffuse=color(227, 110, 14))
white = Material(diffuse=color(255, 255, 255))
#181202
#Graficas por Computadora - 10
#RT2: Teddys
#snowman
import struct
from materials import coal, snow, ivory, carrot, white, red, green, yellow
from sphere import Sphere
from mathfunc import norm, V3, color, char, dword, word, sub, length, dot, mul, reflect, sum
from collections import namedtuple
import random
from numpy import matrix, cos, sin, tan, pi
import math
from light import Light
BLACK = color(0, 0, 0)
WHITE = color(255, 255, 255)
class Render(object):
def __init__(self, width, height):
self.width = width
self.height = height
self.scene = []
self.activeTexture = WHITE
self.clear()
def clear(self):
self.framebuffer = [[self.activeTexture for x in range(self.width)]
for y in range(self.height)]