def draw_spheres(self, solid=False):
gl.glMatrixMode(gl.GL_MODELVIEW)
gray = 0.3
gl.glColor3f(gray, gray, gray)
if solid:
gl.glEnable(gl.GL_LIGHTING)
gl.glEnable(gl.GL_LIGHT0)
gl.glLightfv(gl.GL_LIGHT0, gl.GL_AMBIENT, [1, 1, 1, 1])
gl.glLightfv(gl.GL_LIGHT0, gl.GL_POSITION, [0, 0, 1, 0])
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glMaterialfv(gl.GL_FRONT, gl.GL_DIFFUSE, [1, 1, 1, 0.5])
sphere = gltbx.util.SolidSphere
grid = 50
else:
sphere = gltbx.util.WireSphere
grid = 20
for i, (x, r) in enumerate(self.spheres):
gl.glPushMatrix()
gl.glTranslated(*(x))
sphere(radius=r, slices=grid, stacks=grid)
gl.glPopMatrix()
if solid:
gl.glDisable(gl.GL_LIGHTING)
gl.glDisable(gl.GL_LIGHT0)
gl.glDisable(gl.GL_BLEND)
def execute(self, specular=True):
from gltbx.gl import glMaterialfv, glMaterialf
glMaterialfv(gl.GL_BACK, gl.GL_AMBIENT, self.ambient_back_colour)
glMaterialfv(gl.GL_FRONT, gl.GL_AMBIENT, self.ambient_front_colour)
glMaterialfv(gl.GL_BACK, gl.GL_DIFFUSE, self.diffuse_back_colour)
glMaterialfv(gl.GL_FRONT, gl.GL_DIFFUSE, self.diffuse_front_colour)
if specular:
glMaterialfv(gl.GL_BACK, gl.GL_SPECULAR, self.specular_back_colour)
glMaterialfv(gl.GL_FRONT, gl.GL_SPECULAR, self.specular_front_colour)
glMaterialf(gl.GL_FRONT_AND_BACK, gl.GL_SHININESS, self.specular_focus)