def create_pyramid(color=None):
"""
Creates a pyramid.
:param color: Pyramid color
:type color: list
:return: OpenGL list
"""
arista = 2.0
a = Point3(-0.5, -0.5, -0.333) * arista
b = Point3(0.5, -0.5, -0.333) * arista
c = Point3(0.5, 0.5, -0.333) * arista
d = Point3(-0.5, 0.5, -0.333) * arista
# noinspection PyArgumentEqualDefault
e = Point3(0.0, 0.0, 0.666) * arista
obj = _gl.glGenLists(1)
_gl.glNewList(obj, _gl.GL_COMPILE)
_gl.glPushMatrix()
if color is not None:
_gl.glColor4fv(color)
_gl.glBegin(_gl.GL_QUADS)
draw_vertex_list_create_normal([d, c, b, a])
_gl.glEnd()
_gl.glBegin(_gl.GL_TRIANGLES)
draw_vertex_list_create_normal([a, b, e])
draw_vertex_list_create_normal([b, c, e])
draw_vertex_list_create_normal([c, d, e])
draw_vertex_list_create_normal([d, a, e])
_gl.glEnd()
_gl.glPopMatrix()
_gl.glEndList()
return obj
def create_tetrahedron_vbo(edge=1.0):
"""
Creates a VBO tetrahedron for shaders.
:param edge: Edge length
:type edge: float, int
:return: VBO object
:rtype: VBObject
"""
def ex(element):
"""
Export element to list.
:param element: Element
:return: List
:rtype: list
"""
return element.export_to_list()
# Create points
a = Point3(-0.5, -0.288675, -0.288675) * edge
b = Point3(0.5, -0.288675, -0.288675) * edge
# noinspection PyArgumentEqualDefault
c = Point3(0.0, 0.577350, -0.288675) * edge
# noinspection PyArgumentEqualDefault
d = Point3(0.0, 0.0, 0.57735) * edge
# Create normals
n1 = ex(_normal_3_points(a, b, d))
n2 = ex(_normal_3_points(b, c, d))
n3 = ex(_normal_3_points(c, a, d))
n4 = ex(_normal_3_points(c, b, a))
# Create triangles
vertex_array = [
ex(a),
ex(b),
ex(d),
ex(b),
ex(c),
ex(d),
ex(c),
ex(a),
ex(d),
ex(a),
ex(b),
ex(c)
]
normal_array = [n1, n1, n1, n2, n2, n2, n3, n3, n3, n4, n4, n4]
# Return VBO
return VBObject(_vbo.VBO(_array(vertex_array, 'f')),
_vbo.VBO(_array(normal_array, 'f')), len(vertex_array))
def create_cube(color=None):
"""
Cretes a cube.
:param color: Cube color
:type color: list
:return: OpenGL list
"""
a = Point3(-1.0, -1.0, -1.0)
b = Point3(1.0, -1.0, -1.0)
c = Point3(1.0, -1.0, 1.0)
d = Point3(-1.0, -1.0, 1.0)
e = Point3(-1.0, 1.0, -1.0)
f = Point3(1.0, 1.0, -1.0)
g = Point3(1.0, 1.0, 1.0)
h = Point3(-1.0, 1.0, 1.0)
obj = _gl.glGenLists(1)
_gl.glNewList(obj, _gl.GL_COMPILE)
_gl.glPushMatrix()
_gl.glBegin(_gl.GL_QUADS)
if color is not None:
_gl.glColor4fv(color)
draw_vertex_list_create_normal([a, b, c, d])
draw_vertex_list_create_normal([b, f, g, c])
draw_vertex_list_create_normal([f, e, h, g])
draw_vertex_list_create_normal([e, a, d, h])
draw_vertex_list_create_normal([d, c, g, h])
draw_vertex_list_create_normal([a, e, f, b])
_gl.glEnd()
_gl.glPopMatrix()
_gl.glEndList()
return obj
def create_pyramid_textured(texture_list):
"""
Create a textured pyramid.
:param texture_list: Texture OpenGL list
:return: OpenGL list
"""
edge = 2.0
a = Point3(-0.5, -0.5, -0.333) * edge
b = Point3(0.5, -0.5, -0.333) * edge
c = Point3(0.5, 0.5, -0.333) * edge
d = Point3(-0.5, 0.5, -0.333) * edge
# noinspection PyArgumentEqualDefault
e = Point3(0.0, 0.0, 0.666) * edge
t_list = [Point2(0, 0), Point2(1, 0), Point2(1, 1), Point2(0, 1)]
t_list_face = [Point2(0, 0), Point2(0.5, 1.0), Point2(1, 0)]
obj = _gl.glGenLists(1)
_gl.glNewList(obj, _gl.GL_COMPILE)
_gl.glPushMatrix()
for _i in range(len(texture_list)):
_gl.glActiveTexture(_gl.GL_TEXTURE0 + _i)
_gl.glEnable(_gl.GL_TEXTURE_2D)
_gl.glBindTexture(_gl.GL_TEXTURE_2D, texture_list[_i])
_gl.glBegin(_gl.GL_QUADS)
draw_vertex_list_create_normal_textured([d, c, b, a], t_list)
_gl.glEnd()
_gl.glBegin(_gl.GL_TRIANGLES)
draw_vertex_list_create_normal_textured([a, b, e], t_list_face)
draw_vertex_list_create_normal_textured([b, c, e], t_list_face)
draw_vertex_list_create_normal_textured([c, d, e], t_list_face)
draw_vertex_list_create_normal_textured([d, a, e], t_list_face)
_gl.glEnd()
for _i in range(len(texture_list)):
_gl.glActiveTexture(_gl.GL_TEXTURE0 + _i)
_gl.glDisable(_gl.GL_TEXTURE_2D)
_gl.glPopMatrix()
_gl.glEndList()
return obj
def create_cube_textured(texture_list):
"""
Create a textured cube.
:param texture_list: Texture OpenGL list
:return: OpenGL list
"""
a = Point3(-1.0, -1.0, -1.0)
b = Point3(1.0, -1.0, -1.0)
c = Point3(1.0, -1.0, 1.0)
d = Point3(-1.0, -1.0, 1.0)
e = Point3(-1.0, 1.0, -1.0)
f = Point3(1.0, 1.0, -1.0)
g = Point3(1.0, 1.0, 1.0)
h = Point3(-1.0, 1.0, 1.0)
t_list = [Point2(0, 0), Point2(1, 0), Point2(1, 1), Point2(0, 1)]
obj = _gl.glGenLists(1)
_gl.glNewList(obj, _gl.GL_COMPILE)
_gl.glPushMatrix()
for _i in range(len(texture_list)):
_gl.glActiveTexture(_gl.GL_TEXTURE0 + _i)
_gl.glEnable(_gl.GL_TEXTURE_2D)
_gl.glBindTexture(_gl.GL_TEXTURE_2D, texture_list[_i])
_gl.glBegin(_gl.GL_QUADS)
draw_vertex_list_create_normal_textured([a, b, c, d], t_list)
draw_vertex_list_create_normal_textured([b, f, g, c], t_list)
draw_vertex_list_create_normal_textured([f, e, h, g], t_list)
draw_vertex_list_create_normal_textured([e, a, d, h], t_list)
draw_vertex_list_create_normal_textured([d, c, g, h], t_list)
draw_vertex_list_create_normal_textured([a, e, f, b], t_list)
_gl.glEnd()
for _i in range(len(texture_list)):
_gl.glActiveTexture(_gl.GL_TEXTURE0 + _i)
_gl.glDisable(_gl.GL_TEXTURE_2D)
_gl.glPopMatrix()
_gl.glEndList()
return obj
def __init__(self, posx=0.0, posy=0.0, posz=0.0):
"""
Constructor.
:param posx: X-position
:param posy: Y-position
:param posz: Z-position
:type posx: float, int
:type posy: float, int
:type posz: float, int
"""
self._name = 'unnamed'
self._angvel = Vector3() # Angular velocity
self._boolrot = [False, False, False]
self._boolvel = [False, False, False]
self._functionArguments = []
self._functions = []
self._functionUpdate = []
self._position = Point3(posx, posy, posz)
self._posVel = Vector3() # Velocity
self._properties = {}
def create_diamond(color=None):
"""
Creates a diamond.
:param color: Diamond color
:type color: list
:return: OpenGL list
"""
# noinspection PyArgumentEqualDefault
a = Point3(-1.0, -1.0, 0.0)
# noinspection PyArgumentEqualDefault
b = Point3(1.0, -1.0, 0.0)
# noinspection PyArgumentEqualDefault
c = Point3(1.0, 1.0, 0.0)
# noinspection PyArgumentEqualDefault
d = Point3(-1.0, 1.0, 0.0)
# noinspection PyArgumentEqualDefault
e = Point3(0.0, 0.0, 1.0)
# noinspection PyArgumentEqualDefault
f = Point3(0.0, 0.0, -1.0)
obj = _gl.glGenLists(1)
_gl.glNewList(obj, _gl.GL_COMPILE)
_gl.glPushMatrix()
if color is not None:
_gl.glColor4fv(color)
_gl.glBegin(_gl.GL_TRIANGLES)
draw_vertex_list_create_normal([a, b, e])
draw_vertex_list_create_normal([b, c, e])
draw_vertex_list_create_normal([c, d, e])
draw_vertex_list_create_normal([d, a, e])
draw_vertex_list_create_normal([b, a, f])
draw_vertex_list_create_normal([c, b, f])
draw_vertex_list_create_normal([d, c, f])
draw_vertex_list_create_normal([a, d, f])
_gl.glEnd()
_gl.glPopMatrix()
_gl.glEndList()
return obj
def create_pyramid_vbo(edge=1.0):
"""
Creates a VBO pyramid for shaders.
:param edge: Edge length
:type edge: float, int
:return: VBO Object
:rtype: VBObject
"""
def ex(element):
"""
Export element to list.
:param element: Element
:return: List
:rtype: list
"""
return element.export_to_list()
# Create points
a = Point3(-0.5, -0.5, -0.333) * edge
b = Point3(0.5, -0.5, -0.333) * edge
c = Point3(0.5, 0.5, -0.333) * edge
d = Point3(-0.5, 0.5, -0.333) * edge
# noinspection PyArgumentEqualDefault
e = Point3(0.0, 0.0, 0.666) * edge
# Create normals
n1 = ex(_normal_3_points(a, b, e))
n2 = ex(_normal_3_points(b, c, e))
n3 = ex(_normal_3_points(c, d, e))
n4 = ex(_normal_3_points(d, a, e))
n5 = ex(_normal_3_points(c, b, a))
# Create point list
vertex_array = [
ex(b),
ex(e),
ex(a),
ex(b),
ex(c),
ex(e),
ex(c),
ex(d),
ex(e),
ex(d),
ex(a),
ex(e),
ex(a),
ex(b),
ex(c),
ex(c),
ex(d),
ex(a)
]
normal_array = [
n1, n1, n1, n2, n2, n2, n3, n3, n3, n4, n4, n4, n5, n5, n5, n5, n5, n5
]
# Return VBO Object
return VBObject(_vbo.VBO(_array(vertex_array, 'f')),
_vbo.VBO(_array(normal_array, 'f')), len(vertex_array))
def create_axes(length,
both=False,
text=False,
font=_glut.GLUT_BITMAP_HELVETICA_18):
"""
Create axes system.
:param length: Axes length
:param both: Both axes
:param text: Show axes names (x,y,z)
:param font: Font
:type length: float, int
:type both: bool
:type text: bool
:type font: int
:return: OpenGL list
"""
if length > 0: # Valid length
# Crate points
x = Point3(length, 0, 0)
y = Point3(0, length, 0)
z = Point3(0, 0, length)
o = Point3()
# Create list
lista = _gl.glGenLists(1)
_gl.glNewList(lista, _gl.GL_COMPILE)
# Init primitve
_gl.glBegin(_gl.GL_LINES)
_gl.glColor4fv([1, 0, 0, 1])
draw_vertex_list([o, x])
_gl.glColor4fv([0, 1, 0, 1])
draw_vertex_list([o, y])
_gl.glColor4fv([0, 0, 1, 1])
draw_vertex_list([o, z])
if both: # Draw axes in both directions
x = Point3(-length, 0, 0)
y = Point3(0, -length, 0)
z = Point3(0, 0, -length)
_gl.glColor4fv([1, 0, 0, 1])
draw_vertex_list([o, x])
_gl.glColor4fv([0, 1, 0, 1])
draw_vertex_list([o, y])
_gl.glColor4fv([0, 0, 1, 1])
draw_vertex_list([o, z])
# End primitive
_gl.glEnd()
if text: # Draw axes names
draw_text('x', Point3(length + 60, 0, -15), [1, 0, 0], font)
draw_text('y', Point3(0, length + 50, -15), [0, 1, 0], font)
draw_text('z', Point3(+0, +0, length + 50), [0, 0, 1], font)
if both:
draw_text('-x', Point3(-length - 60, 0, -15), [1, 0, 0], font)
draw_text('-y', Point3(0, -length - 70, -15), [0, 1, 0], font)
draw_text('-z', Point3(+0, +0, -length - 80), [0, 0, 1], font)
# Returns list
_gl.glEndList()
return lista
else:
raise Exception('Axes length must be positive, greater than zero')