chroma - Chroma is a high performance optical photon simulation for particle physics detectors

Age	Commit message (Collapse)	Author
2011-08-08	propagate() takes an array of photon offsets and a range of	Stan Seibert
	offsets to load. Now events with more photons than RNG states can be propagated through multiple kernel calls. Also lays the groundwork for consolidating photons between steps to reduce the amount of propagation work required.
2011-08-08	Record generated particle information in data structure	Stan Seibert

2011-08-08	merge heads	Anthony LaTorre

2011-08-08	speedup Geometry.build()	Anthony LaTorre

2011-08-08	Oops. The generator is a process, not a thread.	Stan Seibert

2011-08-08	Merge Tony's changes.	Stan Seibert

2011-08-08	Modify data structure to hold photon start and stop vertices separately.	Stan Seibert
	Add --save-photon-start and --save-photon-stop options to sim.py to save these vertices. Otherwise, only hit information is recorded.
2011-08-08	toggle fullscreen mode with f11 key. use matplotlib colors maps defined in ↵	Anthony LaTorre
	matplotlib.cm.
2011-08-08	Switch sim.py to spawn a separate process for GEANT4 and start it generating	Stan Seibert
	photons while the detector geometry is being built.
2011-08-08	merge heads	Anthony LaTorre

2011-08-08	add a simple event viewer. view events by running ./camera.py ↵	Anthony LaTorre
	<detector_name> -i <name_of_io_file>.
2011-08-08	Ignore root files and .lprof files produces by kernprof.	Stan Seibert

2011-08-08	Bug fixes when retrieving and rerunning photon lists through propagate.	Stan Seibert

2011-08-05	Cut off the index of refraction for water below 260 nm, which can't	Stan Seibert
	be observed anyway. Speed increase of 20% in full size LBNE.
2011-08-05	Run a short dummy GEANT4 event to force it to load the tables before	Stan Seibert
	the timer starts on the real events.
2011-08-05	merge heads	Anthony LaTorre

2011-08-05	update bounding box construction for nodes to determine each bound in a ↵	Anthony LaTorre
	single call by calling np.min() and np.max() along an axis
2011-08-05	Fix typo in setting direction of particle from sim.py command line.	Stan Seibert

2011-08-05	Remove the unused load() function from Geometry class.	Stan Seibert

2011-08-05	Tony discovered that Inf is not a good value for a scattering length. :)	Stan Seibert

2011-08-05	merge with tony	Stan Seibert

2011-08-05	Warn user if for some reason the default BVH quantization is used because	Stan Seibert
	they didn't build the geometry before loading it on the GPU.
2011-08-05	--spnav option to camera.py enables camera control with a	Stan Seibert
	locally-attached Space Navigator 3D mouse. Assumes you have the open source spacenavd and libspnav installed. (Both included in Ubuntu now.)
2011-08-05	merge heads	Anthony LaTorre

2011-08-05	speedup bounding volume construction of leaf nodes by taking the min and max ↵	Anthony LaTorre
	of ungrouped instead of grouped vertices from a mesh
2011-08-05	add a pi0 decay generator	Anthony LaTorre

2011-08-04	ctypes module for using libspnav from python	Stan Seibert

2011-08-04	First attempt at a simulation program using Chroma.	Stan Seibert
	Loads a geometry specified on the command line, uses GEANT4 to create initial photon vertices, propagates with Chroma, then writes the DAQ-level hit information out to a ROOT file.
2011-08-04	A rootlogon.C file to load the Event dictionary when running root	Stan Seibert
	inside the Chroma directory. Put this in your home directory or other work directory to access Chroma ROOT files.
2011-08-04	Import the fill_event() method from ROOT into the root.py namespace.	Stan Seibert

2011-08-04	Use the clear() method on Event to reset for filling.	Stan Seibert

2011-08-04	Implement propagate and daq functions in gpu module.	Stan Seibert

2011-08-04	Don't draw a random time delta in the daq kernel unless it is necessary.	Stan Seibert

2011-08-04	Add method to detectors module to locate a detector build function	Stan Seibert
	using the same string decorators as in camera and view.
2011-08-03	Merge Tony	Stan Seibert

2011-08-03	ROOT data structure for holding particle, photon, and hit information.	Stan Seibert

2011-08-03	Ignore shared library files produced by ROOT and Boost::Python.	Stan Seibert

2011-08-03	merge heads	Anthony LaTorre

2011-08-03	add a GPU class to handle both the gpu context and module; since the ↵	Anthony LaTorre
	geometry requires global device pointers, there should be a one to one correspondence between modules and contexts. the current plan is to perform all gpu operations within this class. also add a simple color map to display hit pmt charge and timing information.
2011-08-03	GEANT4-based photon vertex generator.	Stan Seibert
	Propagates a particle through a huge volume of some material and harvest the photon vertices that are created for propagation with Chroma. Relies on a patched version of g4py, plus a local boost.python module that is built at import time if needed. (Does not detect changes to rebuild, however.) Chroma materials can now have a density set, as well as an elemental composition (by weight) that is used by this generator.
2011-08-03	Merge with Tony	Stan Seibert

2011-07-30	reduce number of lookup calls.	Anthony LaTorre

2011-07-30	you can rotate just the camera by holding the control key and take movies by ↵	Anthony LaTorre
	pressing the m key.
2011-07-30	when throwing photons from the light source out onto the scene, photons are ↵	Anthony LaTorre
	now thrown randomly across each triangle instead of only at the center of each triangle. all of the rendering kernels have been rewritten so that they operate additively; for example, you may now throw photons from the light source onto the scene, render from the camera to the scene, then throw more photons and render again.
2011-07-29	Add SNO acrylic and LAB+PPO scintillator to detector model.	Stan Seibert

2011-07-28	Alternate "real_sno" detector configuration using the CAD model of the	Stan Seibert
	acrylic vessel. There are serious issues with this model which probably make it unsuitable for photon propagation at the moment. (Example: Why do you need to traverse 8 surfaces to cross the acrylic vessel? There should only be 4.)
2011-07-28	Oops, forgot to include the reduced 8" PMT profile.	Stan Seibert

2011-07-28	Increase alpha depth for complex models. Remove intermediate rounding	Stan Seibert
	to integers in alpha blending until the last step.
2011-07-28	Support for reading bz2 compressed STL files.	Stan Seibert

2011-07-27	Merge changes	Stan Seibert