def draw_scanline(self, va: Vertex, vb: Vertex, y: int, texture: Texture):
x1 = int(va.position.x)
x2 = int(vb.position.x)
sign = 1 if x2 > x1 else -1
factor = 0
for x in range(x1, x2 + sign * 1, sign):
if x1 != x2:
factor = (x - x1) / (x2 - x1)
# color = interpolate(v1.color, v2.color, factor)
v = interpolate(va, vb, factor)
color = texture.sample(v.u, v.v)
self.draw_point(Vector(x, y), color)
def draw_scanline(self, va: Vertex, vb: Vertex, y: int, texture: Texture):
x1 = int(va.position.x)
x2 = int(vb.position.x)
sign = 1 if x2 > x1 else -1
factor = 0
for x in range(x1, x2 + sign * 1, sign):
if x1 != x2:
factor = (x - x1) / (x2 - x1)
# color = interpolate(v1.color, v2.color, factor)
v = interpolate(va, vb, factor)
color = texture.sample(v.u, v.v)
self.draw_point(Vector(x, y), color)
