def __init__(self, renderer):
NEAR = renderer.camera.near_plane
FAR = renderer.camera.far_plane
RIGHT = math.tan(renderer.camera.h_fov / 2)
LEFT = -RIGHT
TOP = math.tan(renderer.camera.v_fov / 2)
BOTTOM = -TOP
self.m00 = 2 / (RIGHT - LEFT)
self.m11 = 2 / (TOP - BOTTOM)
self.m22 = (FAR + NEAR) / (FAR - NEAR)
self.m32 = -2 * NEAR * FAR / (FAR - NEAR)
self.ProjectionMatrix = Matrix4x4(self.m00, 0, 0, 0, 0, self.m11, 0, 0,
0, 0, self.m22, self.m32, 0, 0, 1, 0)
self.HW, self.HH = renderer.H_WIDTH, renderer.H_HEIGHT
self.ScreenMatrix = Matrix4x4(self.HW, 0, 0, self.HW, 0, -self.HH, 0,
self.HH, 0, 0, 1, 0, 0, 0, 0, 1)
def getScaleMatrix(self):
return Matrix4x4.scale(self.scale.x, self.scale.y, self.scale.z)
def getRotationMatrix(self):
rotate_x = Matrix4x4.rotate_x(self.rotation.x)
rotate_y = Matrix4x4.rotate_y(self.rotation.y)
rotate_z = Matrix4x4.rotate_z(self.rotation.z)
return rotate_z @ rotate_y @ rotate_x
def getTranslationMatrix(self):
return Matrix4x4.translate(self.position.x, self.position.y,
self.position.z)
def camera_pitch(self, angle):
rotate = Matrix4x4.rotate_y(angle)
self.forward = rotate @ self.forward
self.right = rotate @ self.right
self.up = rotate @ self.up
def camera_yaw(self, angle):
rotate = Matrix4x4.rotate_x(angle)
self.forward = rotate @ self.forward
self.right = rotate @ self.right
self.up = rotate @ self.up
def rotate_matrix(self):
fx, fy, fz = self.forward.coords()
rx, ry, rz = self.right.coords()
ux, uy, uz = self.up.coords()
return Matrix4x4(rx, ry, rz, 0, ux, uy, uz, 0, fx, fy, fz, 0, 0, 0, 0,
1)
def translate_matrix(self):
x, y, z = self.position.coords()
return Matrix4x4(1, 0, 0, -x, 0, 1, 0, -y, 0, 0, 1, -z, 0, 1, 0, 1)