merging changes from pure-cfg

last commit was by mistake

a bug

using new +=, -=, *=, and clamp

changed implementation to make the code a more obvious implementation of Newton-Raphson, and also to create some obvious and not-so-obvious opportunties for optimization

  Better cleanup code

  Better cleanup

  Added support for hest-based command-line arguments to trunk.  Also switched
  output filename to prog.txt (from mip.txt)

  Add build support for teem example

Added a C/TEEM implementation of vr-lite-cam.

reformatting

useful for new programmers

previous commit an accident

beginnings of some regression test stuff

superficial changes

this test program has served its purpose

reformatting for legibility

  Port updates from development branch to support die.

now using conditional expressions

actually, there isn't a bug?

some tweaks

illustrative volume rendering

  one final merge

  One more update from pure-cfg

  more merging of pure-cfg changes back into trunk

  More merging of pure-cfg back into trunk

  Backporting changes from pure-cfg branch.  These include the "actor" ==> "strand"
  changes.

fixed little bug

fixed little bug

very initial stab at particles code

very initial stab at particles code

  Changed typing rules for tensor construction.  The convention is now slow-to-fast
  for tensor dimensions.

  Add more type tests

  Added type test example

  Working on C version of MIP

  more work on MIP example

  Working on hand-translated example.

  Working on runtime

  Working on Diderot runtime

  Working on C version of runtime

  Working on vr-mip in C example

  Upated URL in header to diderot-language.cs.uchicago.edu

  Working on a hand translation of vr-MIP.diderot to C code.

  Use the dummy transfer-function data for the vr-phong test

  Separate tests with "===="

  Added a script to run the compiler over a bunch of examples

  Use conditional-expression syntax

  Remove uneeded parens

  Adding file

  removed stabilize command from stabilize method

some usage tips

added use of stabilize code block

fixing output value creating

int -> real

white space change

  updates to test code

initial pass at volume rendering lite

new vfrhand data

new vfrhand data

Updated verision of the mip code that appears to be working fine.

Updated verision of the mip code that appears to be working fine.

Added the OpenCL outlined in the probe paper

Added the OpenCL outlined in the probe paper

  Changed kernels to have 4 pieces

  Fixed makefile

Added the opencl version of the probe code.

  Using Unicode operators

  Switch to infix notation for convolution

  Added infix convolve syntax

  Made transfer file an input

  Remove Makefile, since it is generated from Makefile.in

  Update makefile

  Factor out image index computation

  fixed typo

  Debugging

new camera positions

added camera info for vox1 rendering

  Add Makefile.in to test/MIP

Test Case now produces output that allows for viewing it as a png.

Updated the mip test case

  Added inside test and default value for stepSz input

Added the Opencl files for the MIP test case.

  Update examples with output variables

tweaked params

better params

removed tabs, added example values for txs.nrrd MIP renderings

  Update example to current syntax

  Removed type comments, since that information has been collected

  Workaround for compiler bug

  Fixed type errors in example

  Added initialization

  Fixed type errors

  Added new syntax for tensor-value construction and more work on typechecker.

  Fixed type error

  Minor edits

added annotations about types of operations

simple diffusion tensor tractography example

fixed bug in ray direction computation

fixed bug in ray direction computation

txf is 1-D field of 4-tuples

  Convert to new syntax

1-D txf as field

added a plausible phong-lighting volume renderer

new example

  Added intialization syntax

  Parser hacking

  Added some more code

  Create directory for test programs