for comparison with vis12 branch

oops

min lung dataset

new minimal demo

  Merging in changes from the trunk

  New test file

  Minor edits from merging process

  code formating

  Fix overload issue when using an OpenCL 1.1 compiler.

Fixed some bugs on eigen implementation for OpenCL

Included Eigen code into OpenCL

Included Eigen code into OpenCL

  Fix makefile

  Remove cl_kernels directory.  This code is now in compiler/cl-target/fragments

  Cleanup OpenCL typedefs.

  Add Eigenval/Eigenvec fragments

  Change the command-line option -np in the OpenCL runtime to specify the number of
  workers per compute unit (default 4).

Fixed Die bug in OpenCL

  some code clean up in cl-target.sml and do expansion on header text.

  Added hasProp function

  Fix to initially code in OpenCL target

  Add mechanism to specify the number of work groups

  Moved definition and initialization of standard command-line options to input.c.

few clean-up changes in update.in and sched.in

  remove empty directory

  Move OpenCL update kernel code into a fragment module.

Bug Fix: I had manually defined the CL_VERSION for testing but its now removed. 

Accidentally changed the configure from 64 to 32 bit

Bug Fix: Boundary cases when there is no globals or image data. Added the scheduler and header fragments.

  Fixed indent

  fixing cleanup code

Bug Fix: the runtime function subMat used "add" instead of "sub" 
-This line, and those below, will be ignored--

M    pure-cfg/src/compiler/cl-target/runtime-names.sml

  Power(x, 2) converted to multiplication.

  Bug fix: indices for trace were 1-based, instead of 0-based.

  Add rule for file2str wrapper script

  Switch to putting code fragments into SML files as strings using the file2str
  tool.

  Fix header comment

  Added file2str program

  Changed C language printing so that verbatim decls to not have newlines appended
  to them.

  Added support for printing sequences and 1st-order tensors

  Printing support (scalar values only for starts)

  Bug fix: renaming was not being applied to multi-assignments

  Working on printing

  Working on printing support

  Working on printing support

  Working on printing support.

  Code formatting

Better commented kernels file 

  Added atan2 test.

  Bug fix: type of neg_i was incorrect

  Fix indentation

Fixed major illust-vr bug that made images too dark. 

Minor change to fix include errors 

  Switch to using airTime(), instead of GetTime() utility function

  Fix double-precision vector types

  Adding support for double-precision.  The approach is to use typedefs in the C header
  files for the Diderot types.

  Make the eigen C files part of the common sources

  Some performance tuning

  Added debugging support

  Added "-o" option to compiler.

  Fixed formating in the pretty printer.

  added a comment

and in 3D

updated to show bug

new bug

  Fixed typo in function name

bug in 2x2 matrix vector multiply?

test for 2x2 eigensolve

fixed some numerical issues in 3x3 eigensolve

  Added comment about checking output

  Add Eigen function prototypes to diderot.h

  Added multi-assignment nodes to ILs.

  Add contraction phase for MidIL

  Adding Eigen support to C code generator

  Working on multiple result support

  Restore case to handle Identity

fix unu recipe

fix comments

added header comment

  Adding support for multiple return values from operators.

  Removed old version of IL/gen; it has moved to compiler/gen/il

  Re-enable value numbering, which got turned off by accident.

  Added toString function for debugging

  Making the 2x2 and 3x3 Eigen stuff more consistent.

  Code cleanup

Updated the path to the update_cl.in file

Updated the cl-target kernel directory and files to map naming conventions 

for symmetric 2x2 eigensolve

Updating the OpenCL backend to include update method template with placeholders 

new test data for evecs and evals

test program for evecs and evals, based on spectral decomposition

now using stabilize

removing mac-specific line endings

  Removed manticore reference

  Use += etc.

now using stabilize!

Adding the cl_kernels to the lib directory and the update kernel. 

Bug Fix: After the previous commit, the output was not correct for the OpenCL backend because it uses the shadow strand size rather than the original strand size. Fixed 

  Pushed sequence and tuple operations through compiler (tuples are still not supported
  in the code generator).

  Cover case where RealToInt is used on scalars

  More work on Eigen support

  Added sequence and tuple types to the Mid and Low ILs.  Replaced the IVecTy
  constructor with IntTy and SeqTy.

  Working on Eigenvector/value and sequence support

  Factored out common part of Diderot_World_t struct (see Diderot/world.h) and
  fixed output routines for the C and Parallel targets.

  Deal with the different sizes of status flags statically, instead of dynamically.

  Fix compiler warnings

  Switch to using PathUtil.findExe

  Bug fix: use lvalueVar for lhs of S_Input

  Expand tabs

Update includes a working version of the OpenCL backend and output support. Upated the output function args to include a size_t output argument for the output data. 

  Another indexing fix

  Fix vector indexing syntax for gcc.

  Added support for placeholder substitution in verbatim code

  Port eigen code to Diderot runtime

  Working on adding IL support for sequences and eigenvectors

  Added typechecking support for sequences and for evals and evecs.

  Added test of eigenvalues

  Renamed the MethodName module StrandUtil and added the strand properties to it.  Also added
  strand properties to the IL representation.

  Major change to the intermediate representation.  The loading and saving of
  strand state variables is now explicit, which simplifies a lot of things.

 removed unuse file

Fixed the bug where the strand blocks were not copied from __local to __global data. All regression tests are passing except sum-ghp and vr-taxi

-This line, and those below, will be ignored--

M    pure-cfg/src/include/cl_kernels/kernels.cl
M    pure-cfg/src/include/Diderot/cl-scheduler.h
M    pure-cfg/src/lib/cl-target/main.c
M    pure-cfg/src/compiler/cl-target/cl-target.sml
M    pure-cfg/src/compiler/cl-target/runtime-names.sml

Fixed the compaction algorithm for phase 2 and create clEnqueueTasks for reseting the scheduler meta data between iterations. 
-This line, and those below, will be ignored--

M    pure-cfg/src/include/cl_kernels/kernels.cl
M    pure-cfg/src/include/Diderot/cl-scheduler.h
M    pure-cfg/src/lib/cl-target/main.c
M    pure-cfg/src/compiler/cl-target/cl-target.sml

  added a comment

  clean up of printing code in IL optimizers

  more accurate pretty printing

  simple tests

  Added a couple of test programs

  Add calls to stabilize method to sequential and parallel runtimes

  simplify example

  style fixes

Removed unwanted debugging code

Removed a clfinish statement 

Added some comments to the files 

Updating files with the new persistent scheduler 

  Minor tweaks

  Copying the compiler/gen tree from the trunk into the development branch.

  minor code cleanup

  Switched parallel runtime to use Diderot_Output and Diderot_Print.  Also fixed a bug
  in nrrd output code.

  Split output code into two functions: one for nrrd files and one for text files.

  Added comments and fixed indentation

Moved output proceedure to seperate file and updated c-target to use new output.

  some cleanup of the strand descriptor structure

  More runtime-system name cleanup

  More runtime system name changes

  Tweaking runtime system names

  Determine workgroup and local-memory size of kernels.

  Switch to using checked allocation function; added cuWidth info to OpenCL target.

  Fixed coding conventions and added a FIXME comment about the global work size

OpenCL scheduler without many-to-many mapping. 

  code formatting fixes

Added a comment and indexing fix for the regression test 

  added cleanup hooks

  We don't seem to use the unshadow functions, so I've #ifdef'd them out and removed
  the name generation from runtime-names.sml

Added Support for single dimension work queue

  Fix to how shadow types are handled

  Fixing indentation etc.

Added Support for converting host strands to its shadow types 

Fixed the remaining errors with the OpenCL scheduler code 

Added some fixes the the cl-target for the scheduler 

Updated the OpenCL runtime system to include the scheduler implementation

Updated the cl-target to include a refactored version of the scheduler

Commiting a half-complete newer version of the OpenCL scheduler 

  Working on adding doxygen support for documenting runtime sources.

Updated instructions for processing output.

Reverting last change to cl-target/main.c so that it will compile again.

  minor formatting changes

  Split encoding nrrd types into separate file so that we can share it
  across targets.

Nrrd output.  Use with the -nrrd command line option.

Compiler changes for output as a nrrd.

  Working on stabilize support

  Added TargetEnv structure.  Also switched sources.cm to not be generated by configuration.

  Added datatype to represent method names.

  Get more information about devce

  add "-w" flag to disable warnings in OpenCL compiler

  Added support for "do ... while" loops.

  minor cleanup

  Removed unnecessary clFinish calls and made printing more like C version.

  Code cleanup

  Fixing indentation and added some FIXME comments

converted the strand struct fields to their shadowed types

  Added Unshadow functions for vector types

Commited the bad verision of cl-target.sml by accident

Added support for 1D and 3D access for OpenCL

Added support for 1D and 3D access for OpenCL

Fixed overloaded function errors and row-major order bug

  Fix translation of ILBasis functions (we do not need type suffixes for OpenCL)

  Cleanup address-space qualifiers

  Switch to using DIDEROT_CL_VERSION instead of __OPENCL_VERSION__.

  Add support for casting argument types.

  Changing test for OpenCL 1.0

  Minor OpenCL runtime improvements

  Get the OpenCL version number supported by the device

  Doc cleanup

  Added test data from trunk

  Fixed wrong function name

  minor tweaks to runtime

Removed duplicate host vector to shadow vector code

  Fix broken index.

Fixed the bug with converting global fields to its shadow global fields

  Added bitwise operators to CLang

  more FIXME comments

  added FIXME comment

  Added macro for accessing components of host-side OpenCL vector types.

  added test for host representation of OpenCL vector types

  indentation fix

  Factor out image-data pointer type to make it easier to change the
  address space used for image data.

  Changed T_Attr to T_Qual, since the C spec uses "type-qualifier" for
  this syntactic form.  Also added missing "__global" qualifier.

Removed embedded pointers on both the host and gpu side

Removed embedded pointers on both the host and gpu side

  removing old, obsolete, notes about the language design

  removing random documents from source repository

  Bug fix: probing the derivative of a vector field was not handled correctly.

  Removed CL from compiler and Trace from LowIL and TreeIL (since it is expanded
  by mid-to-low).

  update for new type rules

  More OpenCL info

  merging changes from trunk

  merging changes from trunk

  Improved OpenCL info and added mechanism to print the OpenCL profile

  minor tweaks

  Get more device info.

  merging changes from trunk

  merging changes from trunk

  merging changes from trunk

  merging changes from trunk

  Added ppAttrs function

  fix calculation of image size in bytes

  Minor tweaks

Fixed the broken build from the addition of the atrr list of S_DECL

  More robust check for teem

  Fixed typo

  Minor tweak

  Working on OpenCL support

  Add shadow types for marshalling data to the GPU

 Fix CFLAGS in configuration

  Added functions to shadow vectors and matrices

  Added shadow types for shadowing globals that are to be copied to the client.

  Bug fix: was generating C code where OpenCL was required

  misc

Removed buildinfo log from runtime and fixed strand init on GPU side 

  sync with trunk

Fixed a bug in the looping structure of the strand print. It shouldn't print its max number of strands.

Added barrier synch to .cl file and fixed more address space bugs and upated the print function for OpenCL

  fixed indentation

 fixed indentation

  Added helper functions for specifying OpenCL function parameters

  Fixing indentation etc.

Fixed more address space bugs in OpenCL

  porting bugfix from trunk

  Added FIXME comments

  Bug fix: the numDims field wasn't getting set.

  Minor tweak to generated OpenCL code

Fixed the bug with Diderot_KernelMain paramters

  Fixed indentation and minor tweaks

  Fixed bugs in code generation

  Tracking language change

  Fixed bug in names

Fixed problem with local work size

Fixed problems with OpenCL generation code to match with headers

  Added comment

  More header-file fixes

  Fixes to OpenCL header files

  Fixing OpenCL errors in header files

OpenCL runtime now compiling correctly and contains hookups

OpenCL runtime now compiling correctly and contains hookups

  Working on OpenCL support

  Make CLang.mkInt easier to use

  more OpenCL hacking

  fixed indentation

  More fixes for OpenCL

  Introduced the mirror_var type to track variables that are mentioned both
  in the CPU and GPU code (e.g., globals and strand state variables).

Fixed Globals types and removed obselete code

  merge in changes from trunk

  Split uses of ∇ into scalar ∇ and tensor ∇⊗.

  Minor tweaks

  Add code to expand trace

  Added clamp and assignment operators.

  adding outputSzb to strand structure

  remove obsolete comments

  Working on OpenCL support

Editing CL header files

Add the OpenCL include file equivalents.

  Working on OpenCL runtime

  Added name to world structure in OpenCL runtime.  Also added more error
  checking to Diderot_LoadSource.

  Fixed Diderot_InitGlobals to initialize structure.

  Made TreeToCL into a functor parameterized over the translation of variables.
  This allows different clients to have different representations for globals, etc.

  Add tensor subscript support to OpenCL

  Move shared C codegen support to c-util.

  OpenCL hacking

  fixing indentation

  Use the program name as the default output file name.

  Move OpenCL specific types from clang.sml to cl-target.sml

  Added name field to program representation and switched to smart constructors
  in OpenCL backend

  Fix bug in the stabilization of strands

  Added timing support and fixed a build typo

  Fixed unclosed comment

  Added target defines to CPPFLAGS

  Working on OpenCL support

  Change filename and remove unnecessary definitions

Commiting OpenCL implementation does not include Diderot library functions support

  Working on OpenCL runtime support.  Also, added configure support for generating OpenCL
  runtime makefiles.

  expand tabs to avoid editor differences

  Start of runtime support for OpenCL

Final touches on the cl code

Final touches on the cl code

  Adding support for command-line arguments

  Working on command-line option support

  Working on compiler support for command-line options

adding more comments, and cosmetic tweaks

  remove stuff from sources.cm

  Start to factor common C code support

Added globals support to host side for the OpenCL

incomplete commit of the previous bugfix

fixed hest-related memory bug triggered anytime that struct Diderot_Options_s's optDef_t *odef array had to be re-allocated. Basically: you can't give hest a pointer (to store a variable in) that points into an array that might be reallocated later, since the reallocation will end up at a different address

working implementation of hest wrappers for command-line arguments

  Working on clinfo

  Push input descriptor string through compiler phases.

  Changed syntax of input variables to require literal definitions and to
  allow a description string.

  Don't need a duplicate copy of run-cc.sml in cl-target; use the one in c-target

Rolled zslice2.sh back to the previous version.

Added the code for generating OpenCL

  Reclaim space for option descriptors

  Starting work on clinfo utility program

  Added test for pthread barriers

  Added options.h header file

  Added hest wrappers

  Split input functions into their own file and added Diderot_InputVec2

  Change "-log" to "--log"

  Changed the naming convention for Input functions to precision independent

  added some missing cleanup

  Configuration hacking

  Remove ax_check_cl.m4, since it doesn't seem to work very well

  Adding some autoconf macros

  Remove debugging output

  Make sure that libnum is linked into parallel builds

  Use atomic add to update numActive

  Working on support for parallel runtime

  Working on parallel runtime

  Use double precision to compute transforms for images.  We then convert these to the
  target precision.

  Fix cleanup

  Remove -march=native option from C compiles

  Working on parallel runtime

  Adding general support for command-line options

  Add parallel runtime support

  update to note that autoheader must be run too

  Added configure tests for various parallel runtime features.  Also, we now generate
  a config.h file, so autoheader is needed.

  Port eignevalue stuff to diderot runtime

  Working on command-line options

  Working on command-line option support

  Working on porting eigenvector code to Diderot runtime conventions

  Minor fixes

  Working on multiple-target support

  Added configure checks for OpenCL and made the codegen sources.cm file be a
  generated file

  Added autoconf support for checking Mac OS X frameworks

  Starting to work on supporting multiple targets

  Comment out programs that have syntax issues or that use unimplemented features

  Add framework to support command-line control of optimization

  Bug fix: support multidimensional image types

  Remove test/Makefile.in, since it is not useful anymore

  Lots of work on getting the IL invariants right.

  Split normalization part of HighIL optimization into its own module

  Working on debugging value numbering

  Restore test data for derivs3.diderot

  Added ilName to SSA signature

  Working copy of SML/NJ HashCons library, since the version distributed with 110.72 has
  a fatal bug in it.

  Working on value numbering

  Improvements to the replaceOutEdge and added RHS.vars

  Fixed bug in edge editing

  Minor bug fix: remove redundant replaceNode operation

  Create RHS substructure in SSAFn functor

  Fix type errors in ExprFn

  Removed bug that has been fixed

  Better cleanup

  Added check of image range type when loading images during simplify phase.  Also improved
  error message when either range or domain is incorrect.

  Fixed a bug in printing errors when there is no position info

  Tracking trunk changes

  Remove die from TODO list

  better distclean

  Runtime system updates to support Die and to eliminate race for stabilizing

  Switch to using die

  Adding support for program properties in TreeIL and fix a bug in the handling
  of die in variable analysis.

  Port updates from trunk

scoping bug fixed; computation of halfway dot product simplified

  Use UnusedVarFn functor

  update TODO

  remove BUG comment for a fixed bug

  Bug fix in maintaining census counts

  Fix syntax error

  Some runtime system changes

now have pi!

  Added functor to support unused variable elimination

this test program has served its purpose

list syntax for initialization

matrix subtraction works

  Added pie as a float literal

  Fixed typo in grammar

  One more -m64 fix

  Add -m64 for linking too

  restore -m64 option

  More work on runtime build infrastructure

  Working on new runtime build infrastructure

  Working on new runtime build infrastructure

  Bug fix: remember to adjust census counts when renaming params to shadow vars

  Fixed bug: matrix subtraction was being translated to matrix addition.

tweaks

new txf

updates

updates

updates

simpler way of getting correct subtraction

some more basic bugs

fix until 3x3 matrix subtraction works

fix until 3x3 matrix subtraction works

this test program has served its purpose

3x3 matrix subtraction is addition

is this not the way to do an if else?

slightly more logical expression of curvature computation

unu resample -i vfrhand-nohip.nhdr -s x1 x1 x1 -k cubic:1,0 -o vfrhand-nohip-smooth.nrrd

  Added some FIXME notes

  Added some debugging support

  Bug fix: decrement the census counts on state variables that are unused
  outside strand initialization

  Added TreeIL.Var.toString function

  Added dec function to CensusFn

new convolution usage

new convolution usage

  Overload the infix convolution operation so that it is commutative.

slightly simpler

new weird bug

weird bug

design of txf means inside() no longer neede

for IVR

for IVR

new 2D rainbow colormap

new 2D rainbow colormap, simpler field definition

new 2D rainbow colormap

new 2D rainbow colormap

hue -> 2d-bow

hue -> 2d-bow

dnorm path

now in txf subdir

move into txf subdir

using new min/max feature of dnorm

vector field convolution works now

for transfer functions for volume rendering

no longer needed now that vector field convolution works

updated view of what remains

  Changed the name of a function

  After strand initialization, we copy the initial state into the other state
  object so that invariant state variables have the correct value in both
  copies.

  Update TODO file

  Remove BUG comment

  More tweaks to get strand state variables right.

  Hook in backtrace monitor

  Fixed potential syntax error in output

  Lots of tweaking of the variable analysis phase and its use in translating
  Low IL to Tree IL.

combining image loading and field convolution seems to work better now

combining image loading and field convolution seems to work better now

problems negating a vector-value probe result

  IL pretty printers have been moved to top level

  Code reorganization: split the tree-il stuff into its own directory and moved the
  variable analysis into that directory too.  This reorg. is in anticipation of using
  the variable scoping information from VarAnalysis in the translation to TreeIL.

  Fix so that "make build" works from a clean tree

  Incomplete bug fix for parameters in methods

  Removed "BUG" comments for things that are working

  Finish implementing field scaling, addition, and subtraction

  Uncomment tests

cleanup things that are now implemented and working

can now have an axis come in with min and max set, and orientation can be set based on that

numbering of remaining problems

subtle bug in trying to create two fields with one-line expressions

simpler field creation

bug in field expressions

forgot that the new name for this is vr-curv-quad.diderot

this test program has served its purpose

image loading and field creation can happen in one expression now

still exhibits scoping bug

added output process info

still have problems with field expressions

this test program as served its purpose

  A lot of changes to better handle variable scoping etc.

gradient and normal computation shouldn't be done if there is no opacity

  Bug fix: syntax error when attempting to define 1D array of strands

cant seem to have 1D set of strands

cant seem to have 1D set of strands

  Added standard method names to BasisNames module

  Added Node.uses and Node.defs to SSAFn functor

  removed debugging output

fixed dataset use, and removed needless normalize

removed needless normalize

  Added timing of compiler phases to help isolate performance bugs.

how is this not already committed?

  Added syntax for boolean literals

demo of true and false

demo of true and false

  debugging timer support

derivative image-to-world stuff is done!

typos

  Fix detection of linux systems

  Include extra libs in link command

  More configuration hacking to better support multiple platforms.

this test dataset has served its purpose

now finds three isocontours instead of just one, and uses data inside unit square

  New module to support timing compiler phases

  Bug fix: generated incorrect code for transforming gradients to world space when the
  result was used more than once.

these test datasets have served their purpose, but can be regenerated via the didthis-data.txt in this directory if needed

  Reworked representation of coordinate-space transforms in image objects

  Added -rpath to dnorm build

  Make the -rpath option something that is only used on Linux

  Fixed indentation

  Split code to compile and link C code into its own module.

  Fixed some makefile issues

  Added note about bug

  Added -rpath flag to linking phase so that dynamic libraries work on Linux

  Added partial support for mapping tensors from image space back to world space.
  Still need runtime system support for Hessians (see include/Diderot/inline-image.h)

  Adding NaN support to print-as-cl.sml

typos and tweaks

accidental commit of usage of non-committed data

previous commit was accidental

previous commit was accidental

previous commit was accidental

only need to screen against 1/gmsq failing

another demo of isosurfacing

better test dataset

new test data

  Fixed bug in printing of nan

  Fixed typo in Makefile.in

  Add outer loop-to-fixed point

  Fix flag passed to C compiler

test dataset for isosurfacing

added per-axis space kinds

  Fixed bug with using nans

  Bug fix: FloatLit.isNeg was not complete

  Fixed subtracting negative literal bug

  Several CLang changes:
    1) fixed bug with printing negative literals (e.g., a - -1)
    2) added support for assignment and shift operators to CLang.
    3) added break and continue.
    4) added printing support for nan

updated TODO list, with GLKs top-6 ranking

how checking both values, gradients, and hessians

some more 2x2 matrix math

for debugging index-to-world gradient transforms in 2D and 3D

parabolic test data

better documenting of nan bug

post dnorm

test dataset

demo of 2D isocontour sampling

demo of 2D isocontour sampling

new test images

this test program as served its purpose

more on field expressions

more on field expressions

more on field expressions

  Fixed issue with normalize on 2D vectors

  Added missing 2D and 4D vector operations

GLK has more wants

  Trying to make syntax error messages a bit better.

  Minor cleanup of grammar

  More work on syntax description

the road ahead

  Update grammar in report to match implementation

variable rename

now goes both directions

now goes both directions

normalize() does not work on vec2

demo of line integral convolution

demo of line integral convolution

for debugging expressions involving fields

tweaked data padding

tweaked data padding

tweaked data padding

tweaked data padding

oops

the road ahead

documents want of better error msg for unitialized variable

new for LIC test

new version

new version coming next

  adding test program from trunk

  Merging in documentation changes from trunk

  fixed spelling in a comment

  Export TreeToC for use by other targets

  Beginnings of OpenCL support

added c2ctmr kernel, an ostensibly C2 copy of the Catmull-Rom kernel

new probe syntax

tweaks

new probe syntax

tweaks

rename

seemingly finished demo of curvature-based transfer function for volume rendering

demo of curvature computation

this test program has served its purpose

added post-processing info

now a good demo of simple volume rendering

tweaks to make sure that [-1,1]x[-1,1] is "inside" rgb lookup

ran dnorm on these

for testing

  Change syntax for field probing.

  Tweak error checking on image files

  Be more tolerant when checking the kinds of the axes.

the road ahead

new disturbing bug

  updating examples

  Update TODO list

  Fixed field negation

  Added check for variable redefinition in the same scope

  Added FIXME note

  Fix voxel address arithmetic for non-scalar images

specular highlight is now more correct: not modulated by material color

the road ahead

documenting bug about expressing negative hessian

  removed BUG comment that is no longer true

this test program has served its purpose

vr-kcomp is for scoping bug, vr-kcomp2 is for fields in conditional expressions

this test program has served its purpose

this test program has served its purpose

new bug, and escalating no-redeclaration want

  Added some consistency checking to image loading routines.

  Added comment about processing output

  More adjustments for non-scalar images

  Switch zslice-rgb to tent to make debugging easier

  bug fix to runtime: account for voxel dimensions when loading transform matrices

  Simplify matrix loading code

  Removed debug output

  Another bug fix for voxel indexing

test program for probing vector images

have new curvature test program

no longer needed

removing unused rayDir

waiting on vector convolution

  Fixed broken voxel address computation in mid-to-low.sml

tweaks to make center of lookup table really gray, unlike version used in Vis03 paper

back to using trace()

  Fixed code generation for lerp

for curvature demos

RGB txf for curvature-based VR

RGB txf for curvature-based VR

  Fixes for working with 1D images

  Added some image-info operations

  Add error check for Select<int,0>

  Catch error when Select is used on scalar

RGB txf for curvature-based VR

RGB txf for curvature-based VR

  Added 1D image operations

  Adding support for loading 1D image data

tweaks

for making RGB lookup table for curvature-based VF

  Update TODO

  Working on supporting non-scalar image data

  Tweaked example for testing purposes

  Working on supporting vector images

  Changes to image-info.sml:
    added support for loading non-scalar image data
    better error handling when Nrrd file does not exist

padded version

  Minor name change.

  updating TODO

  Adding more 3x3 matrix support

  More bug fixes.

  fixing bugs in refactored code generator

  Working on refactoring

  Change type of Scale operator to work on arbitrary tensor types

  Working on codegen refactoring

  Working on refactoring code generation

  More work on refactoring

  Added more target properties to TARGET signature

  parameterize low-il to tree-il translation by target

  Make the low-to-tree translation be parameterized over the target

  More refactoring work

  Working on refactoring code generation

  Change type of Scale operator to work on arbitrary tensor types

  Working on refactoring code generation.  New file for translating TreeIL expressions
  and statements to CLang

bug in C code for mat x mat

  Removed InvScale from IL.  Instead, we invert the and use Scale in translate-basis.sml

  Added list of all IL basis functions

now using ^ for pow

  Be more consistent about using functions to build CLang terms (instead of using
  the raw constructors)

  Change Norm operator in MidIL and LowIL to work on arbitrary tensor
  types.  Still need codegen support.

  Some debugging and added "^" as power operator.

  Get rid of unused extra-code.c file

  Adding support for zeros[shape] and changed I to identity[d]

  Debugged implementation of outer products

  Adding support for outer product

  Added Literal.intLit helper function

the road ahead

  Bug fix: translation of matrix/vector multiplication ot IL ops was broken

bug in dot?

  added functions to initialize a matrix to zero or the identity

  Remove some HEYs

  update TODO

  Added codegen support for vector-matrix, matrix-vector, and matrix-matrix
  multiplication

  Added missing support for sqrt

  Working on codegen support for vector-matrix, matrix-vector, and matrix-matrix
  multiplication.

  Adding 3x3 matrix multiplication operations

  Update TODO list

  Generalized dot product to inner product of tensor types.  Added IL support for
  vector-matrix, matrix-vector, and matrix-matrix multiplications.  Code generation
  and runtime support is still missing.

  Use matrix copy when assigning to matrix variables.

new test programs

hessians now implemented

  update TODO list

  Added matrix subscripting support to code generation

  Fix operator checking code to allow Subscript on higher-order tensors

  Fixed syntax error.

  Better error message with initially is missing

  Added codegen support for creating matrices

  update TODO list

  Update TODO list

  Added local field variables for testing purposes

  Add support for strand-local field variables.

removed extraneous initial declaration of val and norm

possible bug with field variables

small simplification; removed grad variable

didn't mean to commit last version

added need for something akin to convolution on vector images for RGB transfer functions

  minor edits to TODO list

  Fixed E_Slice exception bug in vr-lite-cam.diderot

  Bug fix: slice operations were breaking eval phase

the road ahead

  more reorg of TODO list

the road ahead

the road ahead

the road ahead

correct place to set transp = 0.0

stabilize code block not working

made specular highlight more correct, and other camera,shading tweaks

bspln5 not working

camera tweaks, and more consistent use of normalize

specular highlight more correct now, but new bug

now using normalize and new dot

now using normalize and new dot

now using normalize and new dot

now using normalize and new dot

used lerp where possible, other cosmetic changes

this test program has served its purpose

removed HEY about fixed bug, and now with lerp

  Added to TODO list

  Adding support for infix dot and cross-product operators

  Switching examples to newer language mechanisms

making commented out code evoke the bug

  Added TODO list

  Added identity matrix support (still needs codegen support)

this test program has served its purpose

this testing program has served its purpose

now with lerp

added minf as peer to maxf

  Update INSTALL instructions

  Added lerp functions

  Use lerp

  Added lerp as an overloaded function

  Allow for overloaded functions (like lerp)

  We don't need two copies of tent in Kernel

  Starting to add more unicode names

  Bug fix

  Add normalize3f function

  update install instructions

tweaked origin

bug

  Bug fix: handle 0-degree kernels

  merge diffs in zslice2

can't yet use c1tent

added a once-differentiable tent kernel called c1tent

  Working on value-numbering

  Working on value-numbering optimization

  Add Trace to codegen

  Better printing of partials

  Added type labels to nodes in the differentiation iterator so that the intermediate
  variables get the right type

  Overhaul in the way that the MidIL and LowIL represent tensor types (especially
  for orders > 1).  We still need to deal with the flattening of tensor-value
  construction

  Added FIXME comment

new possible bug

new possible bug

  Fixed bug in the C code that gets generated for subscripting vectors

  The C-target now compiles and links the generated C code

  Fixed bug in handling of norm

  Fixed typo

  Added missing sqrts

  Split matrix operations into their own file and added matrix (Frobenius) norm

  Added comments

now show bug

added Diderot_ToImageSpace2f and tweaked Diderot_Inside2f, to get 2D convolution working

new bug

dataset for curvature tests

new bug

fixed origin location

  Have norm map to abs when applied to scalars

  Finish support for normalize

  Adding support for vector normalize

  Fixed type error

  Adding normalization support for (s*F)@x, D(-F), and D(s*F) forms.

  Adding 3x3 matrix and 2D image support

  Added FIXME comments for flattening tensors

2d data example

  Split up diderot header file into multiple files.

  Check for existence of image file before running dnorm

  Added TODO list to typechecker.sml