Diff of /trunk/TODO

Parent Directory | Revision Log | Patch

	revision 1119, Thu May 5 05:07:35 2011 UTC	revision 1120, Thu May 5 08:18:26 2011 UTC
#	Line 5	Line 5
5	other SHORT TERM =============  (including needed for LIC)	other SHORT TERM =============  (including needed for LIC)
6	==============================	==============================
7
8		Add a clamp function, which takes three arguments; either three scalars:
9		clamp(x, minval, maxval)  = max(minval, min(maxval, x))
10		or three vectors of the same size:
11		clamp([x,y], minvec, maxvec)  = [max(minvec[0], min(maxvec[0], x)),
12		max(minvec[1], min(maxvec[1], y))]
13		This would be useful in many current Diderot programs.
14		One question: clamp(x, minval, maxval) is the argument order
15		used in OpenCL and other places, but clamp(minval, maxval, x)
16		would be more consistent with lerp(minout, maxout, x).
17
18		Level of differentiability in field type should be statement about how
19		much differentiation the program *needs*, rather than what the kernel
20		*provides*.  The needed differentiability can be less than or equal to
21		the provided differentiability.
22
23	[GLK:1] Add sequence types (needed for evals & evecs)	[GLK:1] Add sequence types (needed for evals & evecs)
24	syntax	syntax
25	types: ty '{' INT '}'	types: ty '{' INT '}'
#	Line 52	Line 67
67	[GLK:3] Use of Teem's "hest" command-line parser for getting	[GLK:3] Use of Teem's "hest" command-line parser for getting
68	any input variables that are not defined in the source file	any input variables that are not defined in the source file
69
70	[GLK:4] ability to declare a field in such a way so that probe	[GLK:4] ability to declare a field so that probe positions are
71	positions are *always* clamped to the support of "inside";	*always* "inside"; with various ways of mapping the known image values
72	there are many cases where this is the sensible behavior.	to non-existant index locations.  One possible syntax emphasizes that
73	(could also have "repeat" declaration, to mimic GL_REPEAT texturing)	there is a index mapping function that logically precedes convolution:
74		F = bspln3 ⊛ (img ◦ clamp)
75		F = bspln3 ⊛ (img ◦ repeat)
76		F = bspln3 ⊛ (img ◦ mirror)
77		where "◦" or "∘" is used to indicate function composition
78
79	extend norm (|exp|) to all tensor types [DONE for vectors and matrices]	extend norm (|exp|) to all tensor types [DONE for vectors and matrices]
80
#	Line 96	Line 115
115	[GLK:5] run-time death of strands; test/iso2d.diderot provides	[GLK:5] run-time death of strands; test/iso2d.diderot provides
116	great initial test for "die" command.	great initial test for "die" command.
117
118		Put small 1-D and 2-D fields, reconstructed by tent, into
119		faster texture buffers
120
121	run-time birth of strands	run-time birth of strands
122
123	"initially" supports lists	"initially" supports lists
#	Line 157	Line 179
179	BUGS =================	BUGS =================
180	======================	======================
181
	test/bug-usevar.diderot:
	looks like varialble scoping bug is still present in some cases?
	test/bug-matrix.diderot:
	3x3 matrix subtraction is broken
	(and then fix test/vr-curv-quad.diderot)
182	test/read2vecs.diderot:	test/read2vecs.diderot:
183	// HEY (BUG?) shouldn't it be a type error to load this 2-D array of	// HEY (BUG?) shouldn't it be a type error to load this 2-D array of
184	// 2-vectors into a 2-D *scalar* field?  Instead, get:	// 2-vectors into a 2-D *scalar* field?  Instead, get:

---

Colored Diff Long Colored Diff Unidiff Context Diff Side by Side

Legend: Removed from v.1119   changed lines   Added in v.1120

---

root@smlnj-gforge.cs.uchicago.edu	ViewVC Help
Powered by ViewVC 1.0.0