Viewport = viewport(width/8, height/8,
width * 3/4, height * 3/4,
depth)
ModelView = lookat(eye, center, up)
ViewProjection = np.dot(np.dot(Viewport, Projection), ModelView)
def map_to_screen(v):
v = np.dot(ViewProjection, np.append(v, 1))
return v[:3] / v[3]
if __name__ == "__main__":
timestart = time.perf_counter()
image = utils.createImage(width, height, 3, np.uint8)
m = Model("obj/african_head.obj")
texture = utils.readImage("obj/african_head_diffuse.tga")
texture = np.flipud(texture)
texture = texture.transpose(1, 0, 2)
print("texture.shape = {}, dtype = {}".format(texture.shape, texture.dtype))
timeend = time.perf_counter()
print("Read model :: ", (timeend - timestart), "s")
light_dir = np.array([0, 0, -1])
timestart = time.perf_counter()
z_buffer = np.zeros((width, height))
for f in m.faces:
import utils
from gui import MainWindow
import time
width = 800
height = 800
padding = 10
def map_to_screen(v):
return [(v[0] + 1) * (width - padding) / 2, (v[1] + 1) * (height - padding)/2, v[2] * 255]
if __name__ == "__main__":
timestart = time.perf_counter()
image = utils.createImage(width, height)
m = Model("obj/african_head.obj")
timeend = time.perf_counter()
print("Read model :: ", (timeend - timestart), "s")
light_dir = np.array([0, 0, -1])
timestart = time.perf_counter()
for i, f in enumerate(m.faces):
v = np.array([map_to_screen(m.vertices[f[i][0]]) for i in range(3)])
normal = np.cross(v[2] - v[0], v[1] - v[0])
normal /= np.linalg.norm(normal)
intensity = abs(np.dot(normal, light_dir))
# triangle_line_sweep(v, image, utils.WHITE * intensity)
from minigl import *
import utils
image = utils.createImage(800, 800)
pixel((5, 5), image, (1, 1, 1))
aligned_rectangle((20, 20), (400, 40), image, (1, 1, 0))
line((20, 25), (60, 60), image, (1, 0, 1))
line((20, 25), (60, 100), image, (0, 1, 1))
line((20, 25), (100, 60), image, (0, 0, 1))
line((100, 25), (20, 60), image, (0, 0, 1))
utils.saveImage("out/1_primitives.jpg", image)
# Versions of line renderer.
def line_v1(a, b, image, color):
# First attempt
a = np.asarray(a)
b = np.asarray(b)
d = b - a
for t in np.arange(0, 1.01, 0.01):
p = (a + d * t).astype(int)
pixel(p, image, color)
def line_v2(a, b, image, color):
# Second attempt