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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 784, Fri Apr 8 01:56:35 2011 UTC revision 818, Wed Apr 13 18:38:55 2011 UTC
# Line 2  Line 2 
2  SHORT TERM =============  (for curvature-based VR)  SHORT TERM =============  (for curvature-based VR)
3  ========================  ========================
4    
5    want: warnings when D (and likely I) is declared as a
6    variable name (now get confusing error messages now)
7    
8    For RGB color output of 2D transfer function (indexed by
9    kappa1,kappa2), or for a 1D transfer function, will need
10    something akin to convolution on vector images
11    
12    IL support for higher-order tensor values (matrices, etc).
13        tensor construction [DONE]
14        tensor indexing [DONE]
15        tensor slicing
16        verify that hessians work correctly
17    
18  Outer products  Outer products
19      syntax [DONE]      syntax [DONE]
20      typechecking      typechecking
21      IL and codegen      IL and codegen
22    
23  Add M dot v, v dot M, and M dot N  Add M dot v, v dot M, and M dot N [DONE]
24    
25  Identity matrix [DONE up to code generation]  Identity matrix [DONE up to code generation]
26    
 determinant ("det") for tensor[3,3]  
   
27  trace [DONE]  trace [DONE]
28    
29  expand trace in mid to low translation  extend norm (|exp|) to tensor[3,3]
   
 extend norm (|exp|) to all tensor types  
   
 extend normalize to all tensor types  
30    
31  Use ∇⊗ etc syntax  Use ∇⊗ etc. syntax
32      syntax [DONE]      syntax [DONE]
33      typechecking      typechecking
34      IL and codegen      IL and codegen
# Line 32  Line 39 
39          value construction: '{' e1 ',' … ',' en '}'          value construction: '{' e1 ',' … ',' en '}'
40          indexing: e '{' e '}'          indexing: e '{' e '}'
41    
 IL support for higher-order tensor values (matrices, etc).  
     tensor construction  
     tensor indexing and slicing  
     verify that hessians work correctly  
   
 Add type aliases for color types  
     rgb = real{3}  
     rgba = real{4}  
   
 Decide if we want to allow redefinitions of variables  
   (as in vr-lite-cam.diderot)  
   
42  Infix dot product and cross product [DONE]  Infix dot product and cross product [DONE]
43    
44  lerp on scalars and vectors [DONE]  lerp on scalars and vectors [DONE]
45    
46  ==============================  ==============================
47  other SHORT TERM =============  (needed for LIC)  other SHORT TERM =============  (including needed for LIC)
48  ==============================  ==============================
49    
50    determinant ("det") for tensor[3,3]
51    
52    Decide if we want to allow redefinitions of variables
53      (as in vr-lite-cam.diderot)
54    
55    extend norm (|exp|) to all tensor types
56    
57    extend normalize to all tensor types
58    
59  vector fields: convolution on vector images  vector fields: convolution on vector images
60    
61    expand trace in mid to low translation
62    
63    value-numbering optimization
64    
65    Add type aliases for color types
66        rgb = real{3}
67        rgba = real{4}
68    
69  ==============================  ==============================
70  MEDIUM TERM ================== (needed for streamlines & tractography)  MEDIUM TERM ================== (needed for streamlines & tractography)
71  ==============================  ==============================
# Line 80  Line 92 
92    
93  proper handling of stabilize method  proper handling of stabilize method
94    
95    Add support for code like
96    
97            (F1 if x else F2)@pos
98    
99    This will require duplication of the continuation of the conditional (but we should only
100    duplicate over the live-range of the result of the conditional.
101    
102    ==============================
103    other MEDIUM TERM ============
104    ==============================
105    
106    support fog Python interop and GUI
107    
108  ==============================  ==============================
109  LONG TERM ====================  LONG TERM ====================
110  ==============================  ==============================
111    
112    Better handling of variables that determines the scope of a variable based on its actual use,
113    instead of where the user defined it.  So, for example, we should lift strand-invariant variables
114    to global scope.  Also prune out useless variables, which should include field variables after the
115    translation to mid-il.
116    
117  co- vs contra- index distinction  co- vs contra- index distinction
118    
119  add ":" for tensor dot product (contracts out two indices  add ":" for tensor dot product (contracts out two indices
# Line 101  Line 131 
131    
132  "tensor comprehension" (like list comprehension)  "tensor comprehension" (like list comprehension)
133    
134    Python/ctypes interface to run-timez
135    
136  ======================  ======================
137  BUGS =================  BUGS =================
138  ======================  ======================
# Line 112  Line 144 
144  test/vr-kcomp.diderot:  test/vr-kcomp.diderot:
145      // HEY (scoping BUG): the strand parameters (e.g. ui, vi) ...      // HEY (scoping BUG): the strand parameters (e.g. ui, vi) ...
146    
 test/vr-lite-cam.diderot:  
 // HEY (BUG): these:  
 //   vec3 lightVspDir = [1.0, -0.0, 0.0];  
 //   vec3 lightVspDir = [1.0, 0.0, -0.0];  
 // work okay but this:  
 //   vec3 lightVspDir = [1.0, 0.0, 0.0]; ...  
   
147  test/zslice2.diderot:  test/zslice2.diderot:
148  // but is this not valid syntax for creating field in one shot?  // but is this not valid syntax for creating field in one shot?
149  //field#2(3)[] F = (load("../data/zimg112.nrrd")) ⊛ bspln3;  //field#2(3)[] F = (load("../data/zimg112.nrrd")) ⊛ bspln3;

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