Author: Remi Meier <remi.me...@inf.ethz.ch> Branch: Changeset: r253:bec3da064c27 Date: 2014-04-24 15:04 +0200 http://bitbucket.org/pypy/benchmarks/changeset/bec3da064c27/
Log: tweak multithreaded raytrace a bit diff --git a/multithread/raytrace/raytrace.py b/multithread/raytrace/raytrace.py --- a/multithread/raytrace/raytrace.py +++ b/multithread/raytrace/raytrace.py @@ -1,7 +1,7 @@ # From http://www.reddit.com/r/tinycode/comments/169ri9/ray_tracer_in_140_sloc_of_python_with_picture/ # Date: 14.03.2013 -from math import sqrt, pow, pi +from math import sqrt, pi from common.abstract_threading import atomic, Future, set_thread_pool, ThreadPool import time @@ -125,14 +125,14 @@ -def task(x, h, cameraPos, objs, lightSource): - time.sleep(0) # XXX - with atomic: - for y in range(h): +def task(img, x, h, cameraPos, objs, lightSource): + line = img[x] + for y in range(h): + with atomic: ray = Ray(cameraPos, (Vector(x/50.0-5,y/50.0-5,0)-cameraPos).normal()) - trace(ray, objs, lightSource, 10) - time.sleep(0) # XXX + col = trace(ray, objs, lightSource, 10) + line[y] = (col.x + col.y + col.z) / 3.0 return x @@ -157,9 +157,11 @@ lightSource = Vector(0,10,0) cameraPos = Vector(0,0,20) - + img = [] for x in range(w): - future_dispatcher(ths, x, h, cameraPos, objs, lightSource) + img.append([0.0] * h) + for x in range(w): + future_dispatcher(ths, img, x, h, cameraPos, objs, lightSource) for f in futures: print f() _______________________________________________ pypy-commit mailing list pypy-commit@python.org https://mail.python.org/mailman/listinfo/pypy-commit
