import sys
sys.path.append('/opt/pixar/RenderManProServer/bin')
import re
import prman

SLICE_SHADER = \
'/temp/hosuk/spheres/project/renderman/geos/shaders/slicePoint'

class ClipRif(prman.Rif):
    def __init__(self, ri, near, far, nearFadeWidth, farFadeWidth, sliceImgpath):

	self.near = near
	self.far = far
	self.nearFadeWidth = nearFadeWidth
	self.farFadeWidth = farFadeWidth
	self.sliceImgpath = sliceImgpath

	self.realNear = near - nearFadeWidth
	self.realFar = far + farFadeWidth

	prman.Rif.__init__(self, ri)


    def Display(self, path, format, mode, args):

	if mode != 'z':
	    #print self.sliceImgpath+ '\n'
	    self.m_ri.Display(self.sliceImgpath, format, mode, args)
	    print ('rendering...')
	    print (self.sliceImgpath+ '\n')


    def Clipping(self, near, far):

	self.m_ri.Clipping(self.realNear, self.realFar)

	
    def Surface(self, shaderPath, args):

	args = {}
	args['float near'] = (self.near,)
	args['float nearFadeWidth'] = (self.nearFadeWidth,)
	args['float far'] = (self.far,)
	args['float farFadeWidth'] = (self.farFadeWidth,)
	args['Kd'] = (0.8,)
	args['Ks'] = (0.5,)
	args['roughness'] = (0.4,)

	self.m_ri.Surface( SLICE_SHADER, args)