chroma/scenes, branch master

chroma/scenes, branch master Chroma is a high performance optical photon simulation for particle physics detectors File reorganization to move toward standard python package layout 2011-09-16T18:27:46+00:00 Stan Seibert stan@mtrr.org 2011-09-16T18:27:46+00:00 084dfd08b714faefaea77cb7dc04d2e93dc04b1d

chroma-cam script now used to view geometries. 2011-09-09T13:53:42+00:00 Anthony LaTorre tlatorre9@gmail.com 2011-09-09T13:53:42+00:00 8f39536a7a5a15afeba52b1492f1d84fed95054f

make default camera resolution widescreen. fix checkerboard scene. 2011-08-18T15:11:25+00:00 Anthony LaTorre tlatorre9@gmail.com 2011-08-18T15:11:25+00:00 f3589198dc7ffb765a2e76a8e608da1f169eb1ba

move useful bits from view.py into camera.py and get rid of view.py 2011-08-17T15:54:41+00:00 Anthony LaTorre tlatorre9@gmail.com 2011-08-17T15:54:41+00:00 11210ce25a543875eb51cff8efc06e7f02984214

import chroma modules from subpackages with import chroma.module_name 2011-08-17T14:36:22+00:00 Anthony LaTorre tlatorre9@gmail.com 2011-08-17T14:36:22+00:00 e33c6fab8b8dd8adb3d71af8517dfe45ba264cf7

added a camera class which is able to render using the simple ray tracer or the hybrid monte carlo ray tracer in a separate thread. the camera object is initialized by passing a pycuda.driver.Context object and a threading.Lock object; you can then run kernels and copy arrays to and from the device in the same context as that used by the camera by acquiring the lock, calling context.push(), executing the kernel and/or copying arrays, calling context.pop(), and then releasing the lock. fixed mistakes in both build_rgb_lookup() and render() where I had accidently switched the green and blue photons. updated the lbne geometry with the latest specifications. added profiles for the sno pmt and concentrator. 2011-07-27T01:10:10+00:00 Anthony LaTorre tlatorre9@gmail.com 2011-07-27T01:10:10+00:00 8eec1bd5fd39b3991f660726cf41dc899347a81f

removed STL pmt models; pmt models are now built by calling rotate_extrude() on a profile of the PMT model (see build_pmt() in solids/pmts.py). triangle intersection now allows one of the two coefficients multiplying the vectors which span the triangle to float slightly negative (up to -EPSILON; EPSILON is defined in src/intersect.h) in order to eliminate rays passing through the line between two triangles. cleaned up a lot of unused code. pulled duplicate code in view() and render() into functions in view.py. in order to allow view.py and render.py to search pre-defined geometries, solids, meshes, etc. without requiring them to be pre-built, pre-defined geometries, solids, meshes, etc. should be returned by a function tagged by the decorator @buildable(identifier) defined in view.py, where identifier is a string used to identify the object as an argument to either view.py or render.py. optical materials and surfaces are now defined in optics.py. added an image directory to save cool screenshots. 2011-07-19T19:09:50+00:00 Anthony LaTorre tlatorre9@gmail.com 2011-07-19T19:09:50+00:00 f5a328b72ebb643b51cae41a991c934da712f0e5

added a hybrid monte carlo ray tracing rendering algorithm 2011-07-10T07:15:17+00:00 Anthony LaTorre tlatorre9@gmail.com 2011-07-10T07:15:17+00:00 842e3a9dfecdd6411b1f27084ab6dcbe92fa32b9