<s> from cvwrap import cv2 <EOL> import numpy as np <EOL> import chumpy as ch <EOL> from copy import deepcopy <EOL> def nothing ( x ) : <EOL> pass <EOL> def get_renderer ( ) : <EOL> import chumpy as ch <EOL> from opendr . everything import * <EOL> m = load_mesh ( '<STR_LIT>' ) <EOL> m . v += ch . array ( [ <NUM_LIT:0> , <NUM_LIT:0> , <NUM_LIT> ] ) <EOL> w , h = ( <NUM_LIT> , <NUM_LIT> ) <EOL> trans = ch . array ( [ [ <NUM_LIT:0> , <NUM_LIT:0> , <NUM_LIT:0> ] ] ) <EOL> rn = TexturedRenderer ( ) <EOL> rn . camera = ProjectPoints ( v = m . v , rt = ch . zeros ( <NUM_LIT:3> ) , t = ch . zeros ( <NUM_LIT:3> ) , f = ch . array ( [ w , w ] ) / <NUM_LIT> , c = ch . array ( [ w , h ] ) / <NUM_LIT> , k = ch . zeros ( <NUM_LIT:5> ) ) <EOL> rn . frustum = { '<STR_LIT>' : <NUM_LIT:1.> , '<STR_LIT>' : <NUM_LIT> , '<STR_LIT:width>' : w , '<STR_LIT>' : h } <EOL> rn . set ( v = trans + m . v , f = m . f , texture_image = m . texture_image [ : , : , : : - <NUM_LIT:1> ] , ft = m . ft , vt = m . vt , bgcolor = ch . zeros ( <NUM_LIT:3> ) ) <EOL> rn . vc = SphericalHarmonics ( vn = VertNormals ( v = rn . v , f = rn . f ) , components = ch . array ( [ <NUM_LIT> , <NUM_LIT:0.> , <NUM_LIT:0.> , <NUM_LIT:0.> ] ) , light_color = ch . ones ( <NUM_LIT:3> ) ) <EOL> return rn <EOL> def main ( ) : <EOL> img = np . zeros ( ( <NUM_LIT> , <NUM_LIT> , <NUM_LIT:3> ) , np . uint8 ) <EOL> cv2 . namedWindow ( '<STR_LIT:image>' ) <EOL> cv2 . namedWindow ( '<STR_LIT>' ) <EOL> rn = get_renderer ( ) <EOL> tracked = { <EOL> '<STR_LIT>' : rn . vc . components [ <NUM_LIT:0> ] , <EOL> '<STR_LIT>' : rn . vc . components [ <NUM_LIT:1> ] , <EOL> '<STR_LIT>' : rn . vc . components [ <NUM_LIT:2> ] , <EOL> '<STR_LIT>' : rn . vc . components [ <NUM_LIT:3> ] , <EOL> '<STR_LIT>' : rn . camera . k [ <NUM_LIT:0> ] , <EOL> '<STR_LIT>' : rn . camera . k [ <NUM_LIT:1> ] , <EOL> '<STR_LIT>' : rn . camera . k [ <NUM_LIT:2> ] <EOL> } <EOL> cnst = <NUM_LIT:1000> <EOL> for k in sorted ( tracked . keys ( ) ) : <EOL> v = tracked [ k ] <EOL> cv2 . createTrackbar ( k , '<STR_LIT:image>' , <NUM_LIT:0> , cnst , nothing ) <EOL> old_tracked = tracked <EOL> cv2 . setTrackbarPos ( '<STR_LIT>' , '<STR_LIT:image>' , <NUM_LIT> ) <EOL> while ( <NUM_LIT:1> ) : <EOL> cv2 . imshow ( '<STR_LIT:image>' , rn . r ) <EOL> k = cv2 . waitKey ( <NUM_LIT:1> ) & <NUM_LIT> <EOL> if k == <NUM_LIT> : <EOL> break <EOL> for k , v in tracked . items ( ) : <EOL> v [ : ] = np . array ( cv2 . getTrackbarPos ( k , '<STR_LIT:image>' ) ) . astype ( np . float32 ) * <NUM_LIT:4> / cnst <EOL> if tracked [ k ] . r [ <NUM_LIT:0> ] != old_tracked [ k ] . r [ <NUM_LIT:0> ] : <EOL> drim = rn . dr_wrt ( v ) . reshape ( rn . shape ) <EOL> mn = np . mean ( drim ) <EOL> drim /= np . max ( np . abs ( drim . ravel ( ) ) ) * <NUM_LIT> <EOL> drim += <NUM_LIT> <EOL> cv2 . imshow ( '<STR_LIT>' , drim ) <EOL> cv2 . waitKey ( <NUM_LIT:1> ) <EOL> old_tracked = deepcopy ( tracked ) <EOL> cv2 . destroyAllWindows ( ) <EOL> if __name__ == '<STR_LIT:__main__>' : <EOL> main ( ) </s>
