simon:tests blyth$ ipython -i OInterpolationTest_identity.py ## perfect match when lookup at the input positions
simon:tests blyth$ ipython -i OInterpolationTest_interpol.py
Probably all materials with non constant props are mismatching:
. Bakelite True
BPE True
ADTableStainlessSteel True
MixGas True
PPE True
RadRock True
Foam True
OpaqueVacuum True
PVC True
Vacuum True
Silver True
UnstStainlessSteel True
Tyvek True
ESR True
StainlessSteel True
Air True
Iron True
Rock True
Nylon True
Aluminium True
Co_60 True
Ge_68 True
C_13 True
Nitrogen True
LiquidScintillator False [(21, 3, 0), (22, 0, 0), (24, 0, 0), (25, 0, 0), (42, 3, 0), (46, 3, 0), (71, 3, 0), (75, 3, 0)]
Acrylic False [(20, 3, 0), (21, 0, 0), (22, 3, 0), (23, 0, 0), (37, 3, 0), (38, 0, 0), (44, 3, 0), (53, 0, 0), (54, 0, 0), (60, 3, 0), (61, 0, 0), (63, 0, 0), (67, 3, 0), (70, 3, 0)]
GdDopedLS False [(23, 3, 0), (25, 3, 0), (26, 3, 0), (45, 3, 0), (72, 3, 0), (74, 3, 0)]
Teflon False [(24, 3, 0), (26, 0, 0), (41, 3, 0)]
Water False [(47, 3, 0), (48, 0, 0), (78, 0, 0)]
OwsWater False [(14, 3, 0), (15, 0, 0), (99, 0, 0), (100, 0, 0), (101, 0, 0), (102, 0, 0), (103, 0, 0), (104, 0, 0), (105, 0, 0), (106, 0, 0), (107, 0, 0), (108, 0, 0), (109, 0, 0), (110, 0, 0), (111, 0, 0), (112, 0, 0), (113, 0, 0), (114, 0, 0), (115, 0, 0), (116, 0, 0), (117, 0, 0), (118, 0, 0), (119, 0, 0), (120, 0, 0)]
Bialkali False [(29, 3, 0), (34, 3, 0)]
DeadWater False [(12, 3, 0), (13, 0, 0), (121, 0, 0)]
NitrogenGas False [(69, 3, 0), (70, 0, 0), (71, 0, 0), (72, 0, 0)]
Pyrex False [(27, 3, 0), (28, 0, 0), (33, 3, 0), (81, 3, 0), (99, 3, 0)]
MineralOil False [(19, 3, 0), (20, 0, 0), (27, 0, 0), (31, 0, 0), (32, 0, 0), (36, 0, 0), (37, 0, 0), (41, 0, 0), (42, 0, 0), (79, 3, 0)]
IwsWater False [(16, 3, 0), (17, 0, 0), (17, 3, 0), (18, 0, 0), (47, 0, 0), (68, 0, 0), (76, 0, 0), (80, 0, 0), (81, 0, 0), (82, 0, 0), (83, 0, 0), (84, 0, 0), (85, 0, 0), (86, 0, 0), (87, 0, 0), (88, 0, 0), (89, 0, 0), (90, 0, 0), (91, 0, 0), (92, 0, 0), (93, 0, 0), (94, 0, 0), (95, 0, 0), (96, 0, 0), (97, 0, 0)]
Seems that the tex settings just dont interpolate:
In [7]: t[21,3,0,-5:] ## last 5 from tex in standard 20nm steps
Out[7]:
array([[ 1.479, 1862.275, 380174.5 , 0. ],
[ 1.479, 978.836, 420184.094, 0. ],
[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 1966.001, 500000. , 0. ]], dtype=float32)
In [6]: o[21,3,0,-30:] ## last 30 of 1nm steps, via tex interpol ... seems settings not interpolating
Out[6]:
array([[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 1966.001, 500000. , 0. ]], dtype=float32)
In [18]: c[21, 3, 0, -30:] ## G4 interpolating away...
Out[18]:
array([[ 1.478, 3433.531, 481848.375, 0. ],
[ 1.478, 3411.401, 483872.125, 0. ],
[ 1.478, 3389.326, 485897.812, 0. ],
[ 1.478, 3367.307, 487923.812, 0. ],
[ 1.478, 3345.343, 489948.531, 0. ],
[ 1.478, 3323.434, 491970.469, 0. ],
[ 1.478, 3301.58 , 493988.062, 0. ],
[ 1.478, 3279.781, 495999.844, 0. ],
[ 1.478, 3258.037, 498004.312, 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3171.323, 500141.906, -0. ],
[ 1.478, 3106.461, 500276.781, -0. ],
[ 1.478, 3041.761, 500403.25 , -0. ],
[ 1.478, 2977.222, 500519.938, -0. ],
[ 1.478, 2912.843, 500625.406, -0. ],
[ 1.478, 2848.623, 500718.375, -0. ],
[ 1.478, 2784.563, 500797.5 , -0. ],
[ 1.478, 2720.662, 500861.469, -0. ],
[ 1.478, 2656.918, 500909.031, -0. ],
[ 1.478, 2593.332, 500938.875, -0. ],
[ 1.478, 2529.903, 500949.812, -0. ],
[ 1.478, 2466.63 , 500940.562, -0. ],
[ 1.478, 2403.512, 500909.969, -0. ],
[ 1.478, 2340.55 , 500856.781, -0. ],
[ 1.478, 2277.742, 500779.906, -0. ],
[ 1.478, 2215.088, 500678.156, -0. ],
[ 1.478, 2152.588, 500550.375, -0. ],
[ 1.478, 2090.24 , 500395.5 , -0. ],
[ 1.478, 2028.045, 500212.406, -0. ],
[ 1.478, 1966.001, 500000. , 0. ]], dtype=float32)
390 void OConfig::configureSampler(optix::TextureSampler& sampler, optix::Buffer& buffer)
391 {
392 LOG(trace) << "OPropertyLib::configureSampler" ;
393
394 // cuda-pdf p43 // default is to clamp to the range
395 RTwrapmode wrapmode = RT_WRAP_REPEAT ;
396 //RTwrapmode wrapmode = RT_WRAP_CLAMP_TO_EDGE ; // <--- seems not supported
397 //RTwrapmode wrapmode = RT_WRAP_MIRROR ;
398 //RTwrapmode wrapmode = RT_WRAP_CLAMP_TO_BORDER ; // return zero when out of range
399 sampler->setWrapMode(0, wrapmode);
400 sampler->setWrapMode(1, wrapmode);
401
402 //RTfiltermode filtermode = RT_FILTER_NEAREST ;
403 RTfiltermode filtermode = RT_FILTER_LINEAR ;
404 RTfiltermode minification = filtermode ;
405 RTfiltermode magnification = filtermode ;
406 RTfiltermode mipmapping = RT_FILTER_NONE ;
407
408 sampler->setFilteringModes(minification, magnification, mipmapping);
409
410 //RTtexturereadmode readmode = RT_TEXTURE_READ_NORMALIZED_FLOAT ;
411 RTtexturereadmode readmode = RT_TEXTURE_READ_ELEMENT_TYPE ; // No conversion
412 sampler->setReadMode(readmode);
413
414 //RTtextureindexmode indexingmode = RT_TEXTURE_INDEX_ARRAY_INDEX ; // by inspection : zero based array index offset by 0.5 (fails to validate in OptiX 400)
415 RTtextureindexmode indexingmode = RT_TEXTURE_INDEX_NORMALIZED_COORDINATES ;
416 sampler->setIndexingMode(indexingmode);
417
418
419 sampler->setMaxAnisotropy(1.0f);
420 sampler->setMipLevelCount(1u);
421 sampler->setArraySize(1u);
422 // from 3.8 pdf: OptiX currently supports only a single MIP level and a single element texture array.
423
424 unsigned int texture_array_idx = 0u ;
425 unsigned int mip_level = 0u ;
426 sampler->setBuffer(texture_array_idx, mip_level, buffer); // deprecated in OptiX 4
427
428 }
Seems the advertized lineral interpolation is not happening ?
7195 /**
7196 * @brief Sets the filtering modes of a texture sampler
7197 *
7198 * @ingroup TextureSampler
7199 *
7200 * <B>Description</B>
7201 *
7202 * @ref rtTextureSamplerSetFilteringModes sets the minification, magnification and MIP mapping filter modes for \a texturesampler.
7203 * RTfiltermode must be one of the following values:
7204 *
7205 * - @ref RT_FILTER_NEAREST
7206 * - @ref RT_FILTER_LINEAR
7207 * - @ref RT_FILTER_NONE
7208 *
7209 * These filter modes specify how the texture sampler will interpolate
7210 * buffer data that has been attached to it. \a minification and
7211 * \a magnification must be one of @ref RT_FILTER_NEAREST or
7212 * @ref RT_FILTER_LINEAR. \a mipmapping may be any of the three values but
7213 * must be @ref RT_FILTER_NONE if the texture sampler contains only a
7214 * single MIP level or one of @ref RT_FILTER_NEAREST or @ref RT_FILTER_LINEAR
7215 * if the texture sampler contains more than one MIP level.
7216 *
7217 * @param[in] texturesampler The texture sampler object to be changed
7218 * @param[in] minification The new minification filter mode of the texture sampler
7219 * @param[in] magnification The new magnification filter mode of the texture sampler
7220 * @param[in] mipmapping The new MIP mapping filter mode of the texture sampler
7221 *
7222 * <B>Return values</B>
7223 *
7224 * Relevant return values:
7225 * - @ref RT_SUCCESS
7226 * - @ref RT_ERROR_INVALID_CONTEXT
7227 * - @ref RT_ERROR_INVALID_VALUE
7228 *
7229 * <B>History</B>
7230 *
7231 * @ref rtTextureSamplerSetFilteringModes was introduced in OptiX 1.0.
7232 *
7233 * <B>See also</B>
7234 * @ref rtTextureSamplerGetFilteringModes
7235 *
7236 */
7237 RTresult RTAPI rtTextureSamplerSetFilteringModes(RTtexturesampler texturesampler, RTfiltermode minification, RTfiltermode magnification, RTfiltermode mipmapping);
7238
Issue not with tex settings but with boundary_lookup.h. After avoiding int-ization on 20nm boundaries, some interpol is happening:
In [1]: t[21,3,0,-5:]
Out[1]:
array([[ 1.479, 1862.275, 380174.5 , 0. ],
[ 1.479, 978.836, 420184.094, 0. ],
[ 1.478, 3680.715, 460193.688, 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 1966.001, 500000. , 0. ]], dtype=float32)
In [2]: o[21,3,0,-30:]
Out[2]:
array([[ 1.478, 3435.965, 482118.25 , 0. ],
[ 1.478, 3413.4 , 484139.688, 0. ],
[ 1.478, 3392.57 , 486005.594, 0. ],
[ 1.478, 3370.004, 488027. , 0. ],
[ 1.478, 3347.439, 490048.438, 0. ],
[ 1.478, 3324.873, 492069.844, 0. ],
[ 1.478, 3302.308, 494091.25 , 0. ],
[ 1.478, 3281.478, 495957.156, 0. ],
[ 1.478, 3258.912, 497978.594, 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3171.837, 500000. , 0. ],
[ 1.478, 3107.327, 500000. , 0. ],
[ 1.478, 3047.78 , 500000. , 0. ],
[ 1.478, 2983.27 , 500000. , 0. ],
[ 1.478, 2918.76 , 500000. , 0. ],
[ 1.478, 2854.25 , 500000. , 0. ],
[ 1.478, 2789.741, 500000. , 0. ],
[ 1.478, 2730.193, 500000. , 0. ],
[ 1.478, 2665.684, 500000. , 0. ],
[ 1.478, 2601.174, 500000. , 0. ],
[ 1.478, 2536.664, 500000. , 0. ],
[ 1.478, 2472.154, 500000. , 0. ],
[ 1.478, 2412.607, 500000. , 0. ],
[ 1.478, 2348.097, 500000. , 0. ],
[ 1.478, 2283.587, 500000. , 0. ],
[ 1.478, 2219.077, 500000. , 0. ],
[ 1.478, 2154.568, 500000. , 0. ],
[ 1.478, 2095.02 , 500000. , 0. ],
[ 1.478, 2030.51 , 500000. , 0. ],
[ 1.478, 1966.001, 500000. , 0. ]], dtype=float32)
In [3]: c[21,3,0,-30:] ## G4 is inventing noise in its interpolation ???
Out[3]:
array([[ 1.478, 3433.531, 481848.375, 0. ],
[ 1.478, 3411.401, 483872.125, 0. ],
[ 1.478, 3389.326, 485897.812, 0. ],
[ 1.478, 3367.307, 487923.812, 0. ],
[ 1.478, 3345.343, 489948.531, 0. ],
[ 1.478, 3323.434, 491970.469, 0. ],
[ 1.478, 3301.58 , 493988.062, 0. ],
[ 1.478, 3279.781, 495999.844, 0. ],
[ 1.478, 3258.037, 498004.312, 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3171.323, 500141.906, -0. ],
[ 1.478, 3106.461, 500276.781, -0. ],
[ 1.478, 3041.761, 500403.25 , -0. ],
[ 1.478, 2977.222, 500519.938, -0. ],
[ 1.478, 2912.843, 500625.406, -0. ],
[ 1.478, 2848.623, 500718.375, -0. ],
[ 1.478, 2784.563, 500797.5 , -0. ],
[ 1.478, 2720.662, 500861.469, -0. ],
[ 1.478, 2656.918, 500909.031, -0. ],
[ 1.478, 2593.332, 500938.875, -0. ],
[ 1.478, 2529.903, 500949.812, -0. ],
[ 1.478, 2466.63 , 500940.562, -0. ],
[ 1.478, 2403.512, 500909.969, -0. ],
[ 1.478, 2340.55 , 500856.781, -0. ],
[ 1.478, 2277.742, 500779.906, -0. ],
[ 1.478, 2215.088, 500678.156, -0. ],
[ 1.478, 2152.588, 500550.375, -0. ],
[ 1.478, 2090.24 , 500395.5 , -0. ],
[ 1.478, 2028.045, 500212.406, -0. ],
[ 1.478, 1966.001, 500000. , 0. ]], dtype=float32)
In [1]: c[21,3,0,-30:] ## switch off spline interpol in CPropLib::addProperty
Out[1]:
array([[ 1.478, 3433.531, 482336.25 , 0. ],
[ 1.478, 3411.401, 484318.719, 0. ],
[ 1.478, 3389.326, 486296.188, 0. ],
[ 1.478, 3367.307, 488268.656, 0. ],
[ 1.478, 3345.343, 490236.188, 0. ],
[ 1.478, 3323.434, 492198.75 , 0. ],
[ 1.478, 3301.58 , 494156.406, 0. ],
[ 1.478, 3279.781, 496109.156, 0. ],
[ 1.478, 3258.037, 498057. , 0. ],
[ 1.478, 3236.347, 500000. , 0. ],
[ 1.478, 3171.323, 500000. , 0. ],
[ 1.478, 3106.461, 500000. , 0. ],
[ 1.478, 3041.761, 500000. , 0. ],
[ 1.478, 2977.222, 500000. , 0. ],
[ 1.478, 2912.843, 500000. , 0. ],
[ 1.478, 2848.623, 500000. , 0. ],
[ 1.478, 2784.563, 500000. , 0. ],
[ 1.478, 2720.662, 500000. , 0. ],
[ 1.478, 2656.918, 500000. , 0. ],
[ 1.478, 2593.332, 500000. , 0. ],
[ 1.478, 2529.903, 500000. , 0. ],
[ 1.478, 2466.63 , 500000. , 0. ],
[ 1.478, 2403.512, 500000. , 0. ],
[ 1.478, 2340.55 , 500000. , 0. ],
[ 1.478, 2277.742, 500000. , 0. ],
[ 1.478, 2215.088, 500000. , 0. ],
[ 1.478, 2152.588, 500000. , 0. ],
[ 1.478, 2090.24 , 500000. , 0. ],
[ 1.478, 2028.045, 500000. , 0. ],
[ 1.478, 1966.001, 500000. , 0. ]], dtype=float32)