def gl_enable_depth(z_near, z_far):
gl.glDepthRange(z_near, z_far)
gl.glClearDepth(1.0)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glDepthFunc(gl.GL_LEQUAL)
gl.glEnable(gl.GL_CULL_FACE)
def _gl_enable_depth():
gl.glDepthRange(0.0, 1000.0)
gl.glClearDepth(1.0)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glDepthFunc(gl.GL_LEQUAL)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glEnable(gl.GL_CULL_FACE)
def init_gl(self):
"""
Perform the magic incantations to create an OpenGL scene.
"""
# the background color
gl.glClearColor(.97, .97, .97, 1.0)
max_depth = (np.abs(self.scene.bounds).max(axis=1)**2).sum()**.5
max_depth = np.clip(max_depth, 500.00, np.inf)
gl.glDepthRange(0.0, max_depth)
gl.glClearDepth(1.0)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glDepthFunc(gl.GL_LEQUAL)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glEnable(gl.GL_CULL_FACE)
gl.glEnable(gl.GL_LIGHTING)
gl.glEnable(gl.GL_LIGHT0)
gl.glEnable(gl.GL_LIGHT1)
# put the light at one corner of the scenes AABB
gl.glLightfv(
gl.GL_LIGHT0, gl.GL_POSITION,
rendering.vector_to_gl(np.append(self.scene.bounds[1], 0)))
gl.glLightfv(gl.GL_LIGHT0, gl.GL_SPECULAR,
rendering.vector_to_gl(.5, .5, 1, 1))
gl.glLightfv(gl.GL_LIGHT0, gl.GL_DIFFUSE,
rendering.vector_to_gl(1, 1, 1, .75))
gl.glLightfv(gl.GL_LIGHT0, gl.GL_AMBIENT,
rendering.vector_to_gl(.1, .1, .1, .2))
gl.glColorMaterial(gl.GL_FRONT_AND_BACK, gl.GL_AMBIENT_AND_DIFFUSE)
gl.glEnable(gl.GL_COLOR_MATERIAL)
gl.glShadeModel(gl.GL_SMOOTH)
gl.glMaterialfv(gl.GL_FRONT, gl.GL_AMBIENT,
rendering.vector_to_gl(0.192250, 0.192250, 0.192250))
gl.glMaterialfv(gl.GL_FRONT, gl.GL_DIFFUSE,
rendering.vector_to_gl(0.507540, 0.507540, 0.507540))
gl.glMaterialfv(gl.GL_FRONT, gl.GL_SPECULAR,
rendering.vector_to_gl(.5082730, .5082730, .5082730))
gl.glMaterialf(gl.GL_FRONT, gl.GL_SHININESS, .4 * 128.0)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_LINE_SMOOTH)
gl.glHint(gl.GL_LINE_SMOOTH_HINT, gl.GL_NICEST)
gl.glLineWidth(1.5)
gl.glPointSize(4)
def _gl_enable_depth(camera):
"""
Enable depth test in OpenGL using distances
from `scene.camera`.
"""
# set the culling depth from our camera object
gl.glDepthRange(camera.z_near, camera.z_far)
gl.glClearDepth(1.0)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glDepthFunc(gl.GL_LEQUAL)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glEnable(gl.GL_CULL_FACE)
def init_gl(self, on_init=None, **kwargs):
gl.glClearColor(.97, .97, .97, 1.0)
max_depth = (np.abs(self.scene.bounds).max(axis=1)**2).sum()**.5
max_depth = np.clip(max_depth, 500.00, np.inf)
gl.glDepthRange(0.0, max_depth)
gl.glClearDepth(1.0)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glDepthFunc(gl.GL_LEQUAL)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glEnable(gl.GL_CULL_FACE)
gl.glEnable(gl.GL_LIGHTING)
gl.glEnable(gl.GL_LIGHT0)
gl.glEnable(gl.GL_LIGHT1)
# put the light at one corner of the scenes AABB
gl.glLightfv(gl.GL_LIGHT0, gl.GL_POSITION,
_gl_vector(np.append(self.scene.bounds[1], 0)))
gl.glLightfv(gl.GL_LIGHT0, gl.GL_SPECULAR, _gl_vector(.5, .5, 1, 1))
gl.glLightfv(gl.GL_LIGHT0, gl.GL_DIFFUSE, _gl_vector(1, 1, 1, .75))
gl.glLightfv(gl.GL_LIGHT0, gl.GL_AMBIENT, _gl_vector(.1, .1, .1, .2))
gl.glColorMaterial(gl.GL_FRONT_AND_BACK, gl.GL_AMBIENT_AND_DIFFUSE)
gl.glEnable(gl.GL_COLOR_MATERIAL)
gl.glShadeModel(gl.GL_SMOOTH)
gl.glMaterialfv(gl.GL_FRONT, gl.GL_AMBIENT,
_gl_vector(0.192250, 0.192250, 0.192250))
gl.glMaterialfv(gl.GL_FRONT, gl.GL_DIFFUSE,
_gl_vector(0.507540, 0.507540, 0.507540))
gl.glMaterialfv(gl.GL_FRONT, gl.GL_SPECULAR,
_gl_vector(.5082730, .5082730, .5082730))
gl.glMaterialf(gl.GL_FRONT, gl.GL_SHININESS, .4 * 128.0)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_LINE_SMOOTH)
gl.glHint(gl.GL_LINE_SMOOTH_HINT, gl.GL_NICEST)
gl.glLineWidth(1.5)
gl.glPointSize(4)
if on_init:
on_init(gl, **kwargs)
def init_gl(self):
"""
Perform the magic incantations to create an OpenGL scene.
"""
# default background color is white-ish
background = [.99, .99, .99, 1.0]
# if user passed a background color use it
if 'background' in self.kwargs:
try:
# convert to (4,) uint8 RGBA
background = to_rgba(self.kwargs['background'])
# convert to 0.0 - 1.0 float
background = background.astype(np.float64) / 255.0
except BaseException:
log.error('background color wrong!', exc_info=True)
# apply the background color
gl.glClearColor(*background)
max_depth = (np.abs(self.scene.bounds).max(axis=1)**2).sum()**.5
max_depth = np.clip(max_depth, 500.00, np.inf)
gl.glDepthRange(0.0, max_depth)
gl.glClearDepth(1.0)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glDepthFunc(gl.GL_LEQUAL)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glEnable(gl.GL_CULL_FACE)
gl.glEnable(gl.GL_LIGHTING)
gl.glEnable(gl.GL_LIGHT0)
gl.glEnable(gl.GL_LIGHT1)
# put the light at one corner of the scenes AABB
gl.glLightfv(
gl.GL_LIGHT0, gl.GL_POSITION,
rendering.vector_to_gl(np.append(self.scene.bounds[1], 0)))
gl.glLightfv(gl.GL_LIGHT0, gl.GL_SPECULAR,
rendering.vector_to_gl(.5, .5, 1, 1))
gl.glLightfv(gl.GL_LIGHT0, gl.GL_DIFFUSE,
rendering.vector_to_gl(1, 1, 1, .75))
gl.glLightfv(gl.GL_LIGHT0, gl.GL_AMBIENT,
rendering.vector_to_gl(.1, .1, .1, .2))
gl.glColorMaterial(gl.GL_FRONT_AND_BACK, gl.GL_AMBIENT_AND_DIFFUSE)
gl.glEnable(gl.GL_COLOR_MATERIAL)
gl.glShadeModel(gl.GL_SMOOTH)
gl.glMaterialfv(gl.GL_FRONT, gl.GL_AMBIENT,
rendering.vector_to_gl(0.192250, 0.192250, 0.192250))
gl.glMaterialfv(gl.GL_FRONT, gl.GL_DIFFUSE,
rendering.vector_to_gl(0.507540, 0.507540, 0.507540))
gl.glMaterialfv(gl.GL_FRONT, gl.GL_SPECULAR,
rendering.vector_to_gl(.5082730, .5082730, .5082730))
gl.glMaterialf(gl.GL_FRONT, gl.GL_SHININESS, .4 * 128.0)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_LINE_SMOOTH)
gl.glHint(gl.GL_LINE_SMOOTH_HINT, gl.GL_NICEST)
gl.glLineWidth(1.5)
gl.glPointSize(4)
def init_gl(self):
"""
Perform the magic incantations to create an
OpenGL scene using pyglet.
"""
# default background color is white-ish
background = [.99, .99, .99, 1.0]
# if user passed a background color use it
if 'background' in self.kwargs:
try:
# convert to (4,) uint8 RGBA
background = to_rgba(self.kwargs['background'])
# convert to 0.0 - 1.0 float
background = background.astype(np.float64) / 255.0
except BaseException:
log.error('background color set but wrong!',
exc_info=True)
# apply the background color
gl.glClearColor(*background)
# find the maximum depth based on
# maximum length of scene AABB
max_depth = (np.abs(self.scene.bounds).max(axis=1) ** 2).sum() ** .5
max_depth = np.clip(max_depth, 500.00, np.inf)
gl.glDepthRange(0.0, max_depth)
gl.glClearDepth(1.0)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glDepthFunc(gl.GL_LEQUAL)
gl.glEnable(gl.GL_DEPTH_TEST)
gl.glEnable(gl.GL_CULL_FACE)
# do some openGL things
gl.glColorMaterial(gl.GL_FRONT_AND_BACK,
gl.GL_AMBIENT_AND_DIFFUSE)
gl.glEnable(gl.GL_COLOR_MATERIAL)
gl.glShadeModel(gl.GL_SMOOTH)
gl.glMaterialfv(gl.GL_FRONT,
gl.GL_AMBIENT,
rendering.vector_to_gl(
0.192250, 0.192250, 0.192250))
gl.glMaterialfv(gl.GL_FRONT,
gl.GL_DIFFUSE,
rendering.vector_to_gl(
0.507540, 0.507540, 0.507540))
gl.glMaterialfv(gl.GL_FRONT,
gl.GL_SPECULAR,
rendering.vector_to_gl(
.5082730, .5082730, .5082730))
gl.glMaterialf(gl.GL_FRONT,
gl.GL_SHININESS,
.4 * 128.0)
# enable blending for transparency
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA,
gl.GL_ONE_MINUS_SRC_ALPHA)
# make the lines from Path3D objects less ugly
gl.glEnable(gl.GL_LINE_SMOOTH)
gl.glHint(gl.GL_LINE_SMOOTH_HINT, gl.GL_NICEST)
# set the width of lines to 1.5 pixels
gl.glLineWidth(1.5)
# set PointCloud markers to 4 pixels in size
gl.glPointSize(4)
# set up the viewer lights using self.scene
self.update_lighting()
