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[diderot] Diff of /branches/pure-cfg/TODO
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Diff of /branches/pure-cfg/TODO

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revision 789, Fri Apr 8 09:44:11 2011 UTC revision 897, Wed Apr 20 17:21:41 2011 UTC
# Line 2  Line 2 
2  SHORT TERM =============  (for curvature-based VR)  SHORT TERM =============  (for curvature-based VR)
3  ========================  ========================
4    
5  For RGB color output of 2D transfer function (indexed by  vector fields: convolution on vector images
6  kappa1,kappa2), or for a 1D transfer function, will need      (image orientation not quite working)
 something akin to convolution on vector images  
7    
8  IL support for higher-order tensor values (matrices, etc).  IL support for higher-order tensor values (matrices, etc).
9      tensor construction      tensor construction [DONE]
10      tensor indexing and slicing      tensor indexing [DONE]
11      verify that hessians work correctly      tensor slicing
12        verify that hessians work correctly [DONE]
13    
14  Outer products  Outer products [DONE]
15      syntax [DONE]  
16      typechecking  Add M dot v, v dot M, and M dot N [DONE]
     IL and codegen  
17    
18  Add M dot v, v dot M, and M dot N  Identity matrix [DONE]
19    
20  Identity matrix [DONE up to code generation]  Zero tensor [DONE]
21    
22  trace [DONE]  trace [DONE]
23    
24  extend norm (|exp|) to tensor[3,3]  extend norm (|exp|) to tensor[3,3] [DONE]
25    
26    Matrix addition, subtraction, and scaling  [DONE]
27    
28  Use ∇⊗ etc. syntax  Use ∇⊗ etc. syntax
29      syntax [DONE]      syntax [DONE]
# Line 39  Line 40 
40    
41  lerp on scalars and vectors [DONE]  lerp on scalars and vectors [DONE]
42    
43    Infix "^" operator for pow() [DONE]
44    
45    Code generation support for 1D image data, such as RGBA transfer functions [DONE]
46    
47  ==============================  ==============================
48  other SHORT TERM =============  (including needed for LIC)  other SHORT TERM =============  (including needed for LIC)
49  ==============================  ==============================
50    
51  determinant ("det") for tensor[3,3]  determinant ("det") for tensor[3,3]
52    
53  Decide if we want to allow redefinitions of variables  extend norm (|exp|) to all tensor types [DONE for vectors and matrices]
   (as in vr-lite-cam.diderot)  
   
 extend norm (|exp|) to all tensor types  
   
 extend normalize to all tensor types  
   
 vector fields: convolution on vector images  
54    
55  expand trace in mid to low translation  expand trace in mid to low translation
56    
# Line 63  Line 61 
61      rgba = real{4}      rgba = real{4}
62    
63  ==============================  ==============================
64  MEDIUM TERM ================== (needed for streamlines & tractography)  MEDIUM TERM ================== (including needed for streamlines & tractography)
65  ==============================  ==============================
66    
67  ability to emit/track/record variables into dynamically re-sized  ability to emit/track/record variables into dynamically re-sized
# Line 73  Line 71 
71    
72  tensor fields: convolution on general tensor images  tensor fields: convolution on general tensor images
73    
74    Use of Teem's "hest" command-line parser for getting
75    any input variables that are not defined in the source file
76    
77    Save Diderot output to nrrd, instead of "mip.txt"
78      For grid of strands, save to similarly-shaped array
79      For list of strands, save to long 1-D (or 2-D for non-scalar output) list
80      For ragged things (like tractography output), will need to save both
81        complete list of values, as well as list of start indices and lengths
82        to index into complete list
83    
84  ==============================  ==============================
85  other MEDIUM TERM ============ (needed for particles)  other MEDIUM TERM ============ (needed for particles)
86  ==============================  ==============================
# Line 88  Line 96 
96    
97  proper handling of stabilize method  proper handling of stabilize method
98    
99    test/vr-kcomp2.diderot: Add support for code like
100    
101            (F1 if x else F2)@pos
102    
103    This will require duplication of the continuation of the conditional (but we should only
104    duplicate over the live-range of the result of the conditional.
105    
106    ==============================
107    other MEDIUM TERM ============
108    ==============================
109    
110    want: warnings when D (and likely I) is declared as a
111    variable name (now get confusing error messages now)
112    
113    support for Python interop and GUI
114    
115  ==============================  ==============================
116  LONG TERM ====================  LONG TERM ====================
117  ==============================  ==============================
118    
119    Better handling of variables that determines the scope of a variable based on its actual use,
120    instead of where the user defined it.  So, for example, we should lift strand-invariant variables
121    to global scope.  Also prune out useless variables, which should include field variables after the
122    translation to mid-il.
123    
124  co- vs contra- index distinction  co- vs contra- index distinction
125    
126  add ":" for tensor dot product (contracts out two indices  add ":" for tensor dot product (contracts out two indices
# Line 109  Line 138 
138    
139  "tensor comprehension" (like list comprehension)  "tensor comprehension" (like list comprehension)
140    
141    Python/ctypes interface to run-timez
142    
143  ======================  ======================
144  BUGS =================  BUGS =================
145  ======================  ======================

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