1. Write your own myLookAt() and myFrustum() functions (of the following form) that behaves exactly same as gluLookAt() and glFrustum().
A.
- Set the window title to your student ID and the window size to (480,480).
- Code skeleton
def myLookAt(eye, at, up): # eye, at, up are 1D numpy array of length 3
def myFrustum(left, right, bottom, top, near, far):
def render():
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glEnable(GL_DEPTH_TEST)
glPolygonMode( GL_FRONT_AND_BACK, GL_LINE )
glLoadIdentity()
myFrustum(-1,1, -1,1, 1,10)
myLookAt(np.array([5,3,5]), np.array([1,1,-1]), np.array([0,1,0]))
# Above two lines must behave exactly same as the below two lines
drawFrame()
#glFrustum(-1,1, -1,1, 1,10)
#gluLookAt(5,3,5, 1,1,-1, 0,1,0)
glColor3ub(255, 255, 255)
drawCubeArray()
def myFrustum(left, right, bottom, top, near, far):
# implement here
def myLookAt(eye, at, up):
# implement here
D.
E.
F.
Find code for drawFrame(), drawCubeArray() from 6-Viewing & Projection2 & mesh slides.
DO NOT use gluLookAt() inside myLookAt() and glFrustum() inside myFrustum()!
Your program should render the following scene:
i.
G. Hint:
- To implement myLookAt(), see lecture slide 5-reference-viewing. To implement myFrustum(), see lab slide 6-Viewing & Projection2, mesh .
- l2 norm of v : ||v|| = np.sqrt( np.dot(v, v) )
- a x b (cross product) : np.cross(a, b)
- a b (inner product) : np.dot(a, b) or a@b
- Use glMultMatrixf() to multiply your projection matrix and viewing matrix to the
current transformation matrix.
H. Files to submit: A Python source file (Name the file whatever you want (in English). Extension should be .py)
2. Write down a Python program to draw following cube () by using indexed squares representation and glDrawElements().
1.51.51.5
6
15015 .
C. Start from the code in 6-Viewing & Projection2 & mesh slides. Make sure camera
- Set the window title to your student ID and the window size to (480,480).
- Files to submit: A Python source file (Name the file whatever you want (in English). Extension should be .py)
0 1.5 1.5
001.5
01.jo 4
0
71.5.150
3
A.
B. Length of each line is 1.5
I
000
1.50
0.
