Ian Curtis
89e75a9803
Only check scroll fog value from the first viewport from each priority layer. Seems to fix problems with background fogging.
2016-12-14 19:57:05 +00:00
Ian Curtis
707e945db9
delete unused files
2016-12-09 14:15:11 +00:00
Ian Curtis
2c23268d88
Support microtexture relative scale. The exact scaling values are not known, but a 2x difference between each level seems highly likely. We know from visual inspection from scud that the first level is exactly 4. The SDK has a function that accepts a float input for scale and does this. lod = (1/scale) + 0.5. If lod>3 lod = 3. So this is our best guess.
2016-12-09 14:13:46 +00:00
Ian Curtis
da8b63b44b
The model3 shares vertices between polygons. But it also seems to do this for polygons with different textures. This means the texture coordinate for potentially different sizes textures is shared. Currently this was broken leading to some corrupted looking textures. The fix is to simply cache the old texture coordinates, and recalculate the normalised coordinates in the new texture coordinate space.
2016-12-06 14:39:46 +00:00
Ian Curtis
10a5d2c0e1
refactor
2016-12-06 12:25:34 +00:00
Ian Curtis
eece2d75b4
tweak scroll fog logic
2016-12-04 22:37:49 +00:00
Ian Curtis
adbebb0204
clean up
2016-12-04 22:37:22 +00:00
Ian Curtis
a310e8e5cf
minor optimisations
2016-11-28 17:32:25 +00:00
Ian Curtis
abc8c24b69
Only check the geometry for culling with valid node distances. We will need this later.
2016-11-27 19:30:46 +00:00
Ian Curtis
fe60d115d2
Revert changes .. if we clip against the real3d clipping planes, our wide screen hack won't work anymore.
2016-11-26 01:19:51 +00:00
Ian Curtis
665fa90425
Get clipping planes directly from the viewport data. Also no need to clip against a far plane
2016-11-26 01:12:08 +00:00
Ian Curtis
54c405709f
Need to walk back in memory and check the previous texture tiles to see if they overlap with the current textures being invalidated. If they overlap they must be cleared too. Algorithm is a bit brute forcy and more expensive than I'd like but it fixes the bad textures in Spikeout.
2016-11-22 20:30:10 +00:00
Ian Curtis
84ae8f035c
Skip processing the mipmap section of memory. The real3d doesn't create mipmaps down to 1x1 that is needed to do mipmapping properly on modern hardware anyway.
2016-11-21 09:04:56 +00:00
Ian Curtis
2ddc8a30e0
Clear queued texture uploads after processing them. Saves re-uploading the same textures whilst paused
2016-11-20 17:02:59 +00:00
Ian Curtis
10dd530cde
More accurate 2D colours. White should map to 255 not 248
2016-11-15 12:44:47 +00:00
Ian Curtis
483ba2f398
Fix the shading in scud. When lighting is disabled the fixed shading intensities appear to be offset values added to the colour value.
2016-11-11 17:50:27 +00:00
Ian Curtis
0a7c0d0864
change throttle logic for smoother playback, we could get closer to 60fps if SDL timers weren't so lame
2016-10-21 00:04:12 +00:00
Ian Curtis
2f49012786
change scroll fog logic to parse the lower priority viewports first
2016-10-09 18:10:57 +00:00
Ian Curtis
f0a15febd1
implement scroll fog, fixes a tonne of missing fx
2016-10-09 16:34:12 +00:00
Ian Curtis
ef11990d19
Parse out scrollfog value used for blending over the 2d background.
2016-10-08 15:41:16 +00:00
Ian Curtis
33e795de9b
Fix scenes with missing fog in ocean hunter. The game was passing negative fog densities. The sign seems to be ignored by the model 3.
2016-10-08 15:15:25 +00:00
Ian Curtis
9eeb81ac69
same fix for legacy engine
2016-10-08 12:10:47 +00:00
Ian Curtis
33cf6c89d1
our scratch mem must match correct max texture size
2016-10-08 11:59:25 +00:00
Ian Curtis
c472d90fb9
Fix the sky in advanced stage in Dirt Devils. It uses a massive (for 1998 :p) 1024x256 texture.
2016-10-06 20:10:45 +00:00
Ian Curtis
c3581c9fe8
Support multiple microTextures, fixes crazy texturing in sega ski champ. I'm assuming microtextures are always located on the other memory bank to the base texture. This logic seems to work for all our games anyway.
2016-10-06 01:37:29 +00:00
Bart Trzynadlowski
e21ea93319
Added RGBA4 format to BMP file writer
2016-09-07 01:25:27 +00:00
Bart Trzynadlowski
3df3610361
Made parsing of hex values more robust
2016-08-25 04:54:08 +00:00
Bart Trzynadlowski
458684eb22
Fixed new 3D engine's fragment shader to work on some older GPUs by reducing the number of discard statements to one
2016-08-24 22:21:18 +00:00
Bart Trzynadlowski
4b184b05dc
Updated game loader to make use of latest changes to config tree: generic value types and eliminated pointers
2016-08-24 04:13:23 +00:00
Bart Trzynadlowski
c2f80cef6b
Support for hex numbers in string to integer conversions (with '0x' prefix) and special keywords in string to bool conversions (true/false/on/off/yes/no)
2016-08-24 04:11:52 +00:00
Bart Trzynadlowski
f08ad1584f
Added Util::Stricmp() and small tweak to serialization of Util::Format
2016-08-24 04:10:20 +00:00
Bart Trzynadlowski
2efe18b525
Added support for multiple value types in config nodes.
...
Removed Ptr_t and ConstPtr_t from public interface, moved config tree builders into their own file, and made them pass by reference and value.
Exceptions can be thrown now on lookup failures.
Removed s_empty_node -- failed lookups in [] operator create a permanent "hidden" child.
Updated comment in NewConfig.cpp.
2016-08-21 22:22:45 +00:00
Bart Trzynadlowski
01a6ad1596
Added copy constructor and assignment operator using C++11 move semantics
2016-08-19 00:01:45 +00:00
Bart Trzynadlowski
a9816467d8
Defined inputs
2016-08-18 04:19:36 +00:00
Bart Trzynadlowski
fbeeb3c922
Support for deep copies via assignment operator. This will pave the way for elimination of Ptr_t and ConstPtr_t.
2016-08-18 04:14:36 +00:00
Bart Trzynadlowski
5652aab91f
Added Write() method to write buffer to an ostream, and added an ostream operator overload
2016-08-18 04:13:50 +00:00
Bart Trzynadlowski
1dc360a8b0
Changes to game loader interface, added 32-bit word swapping utility function
2016-08-11 03:53:19 +00:00
Bart Trzynadlowski
a2423a8b75
Initial check-in of game loader (not operational yet)
2016-08-10 03:28:40 +00:00
Bart Trzynadlowski
037bfc648d
Byte swapping utility function
2016-08-10 03:27:59 +00:00
Bart Trzynadlowski
718c237063
Added ValueAsBool(), ValueAsBoolWithDefault(), and ValueAsUnsignedWithDefault()
2016-08-10 03:27:01 +00:00
Bart Trzynadlowski
52d6eac7e5
Added Util::Config::Node::ValueAsUnsigned() with support for base 10 and 16 ('0x' prefix)
2016-07-10 04:25:41 +00:00
Bart Trzynadlowski
331d7042f2
Added Util::ToLower()
2016-07-10 04:25:12 +00:00
Bart Trzynadlowski
a84aacf80b
Config::Node::Add() now supports nested keys (e.g., Add("foo/bar/baz", "0") will create three nested config nodes)
2016-07-09 15:19:17 +00:00
Bart Trzynadlowski
24c341120a
Changed Config::Node::Create() to Add() and added a Set() method (for INI semantics). Turned Test_Config.cpp into a proper unit test reporting pass/fail for each test.
2016-07-09 14:45:48 +00:00
Bart Trzynadlowski
2e069af603
Adding tinyxml2 lib
2016-07-07 05:05:27 +00:00
Bart Trzynadlowski
724dc93294
XML parsing support for new config system
2016-07-07 04:59:10 +00:00
Bart Trzynadlowski
bcc663d4eb
Moved logging functions into OSD/Logger.cpp (eventually logging system will be reworked entirely) and added new config tree structure (not yet used).
2016-07-05 01:15:58 +00:00
Bart Trzynadlowski
0ab486645c
Updated Fragment_NoSpotlight.glsl (fragment shader for legacy engine without spot light)
2016-07-04 01:00:24 +00:00
Ian Curtis
732bff2769
disable spot light if the extent is zero
2016-06-29 20:53:19 +00:00
Ian Curtis
efa7776871
parse some unimplemented spot light values from viewport
2016-06-27 17:35:27 +00:00
Bart Trzynadlowski
de043355bc
Marked offset of code in CROM for scudp
2016-06-24 01:01:30 +00:00
Ian Curtis
d058a29ac8
stencil translucent non textured polys
2016-06-19 23:33:06 +00:00
Ian Curtis
85c4d85562
refactor
2016-06-19 21:43:09 +00:00
Ian Curtis
c2b1db11f8
Cull geometry based on the culling distances in the nodes. Should give some sort of speedup on lower end pcs where the CPU is predominantly the bottle neck.
2016-06-16 20:05:29 +00:00
Bart Trzynadlowski
f31f06b42e
Fix compilation when SUPERMODEL_DEBUGGER enabled
2016-06-13 00:53:39 +00:00
Ian Curtis
d799c63b1a
cache bound texture
2016-06-10 11:29:20 +00:00
Ian Curtis
48a79a8f14
cleaning
2016-06-10 10:18:47 +00:00
Bart Trzynadlowski
b0911afd1f
Added drive board and lamp raw outputs (submitted by SailorSat)
2016-06-07 01:51:16 +00:00
Ian Curtis
8440bc7f03
support negative exponent
2016-06-03 09:33:46 +00:00
Ian Curtis
5081ee99dc
Add code to convert the 16bit float format used by the hardware back into float 754 format. 16bit floats are used for the culling radiuses in the nodes.
2016-06-03 00:01:34 +00:00
Bart Trzynadlowski
6dc5845d47
Added -vsync and -no-vsync option descriptions to command line help
2016-06-02 23:51:43 +00:00
Ian Curtis
9bc1fbf0cb
remove dead code
2016-06-02 21:26:50 +00:00
Bart Trzynadlowski
968652bcfb
Added a Split() function to Util::Format.
2016-06-02 03:14:46 +00:00
Bart Trzynadlowski
d1330d310c
XInput fix: search for all three possible XInput DLLs (xinput1_4.dll, xinput1_3.dll, and xinput9_1_0.dll). I have not tested 32-bit builds.
2016-06-02 00:13:42 +00:00
Ian Curtis
ff8e9d6aad
Check for overflow. Fixes some fade effects
2016-05-30 23:10:56 +00:00
Bart Trzynadlowski
9a49fefe12
Legacy engine: fixed texture offsets (VON2 was broken by last commit). Texture coordinates are wrapped within the bank first and then the bank can be swapped. This also allows the full range of texture coordinate bits to be used as specified in the Pro-1000 SDK.
2016-05-30 19:18:11 +00:00
Ian Curtis
36074d9fd5
Y texture offsets are just 5 bits. Texture coordinate wrap around happens in the same texture sheet, not into the next one. Fixes various texturing bugs in sega rally.
2016-05-30 13:25:00 +00:00
Bart Trzynadlowski
d1f49675b1
Legacy engine: Culling node texture Y offset is only 5 bits (fixes Sega Rally 2 initials decal)
2016-05-29 20:49:28 +00:00
Bart Trzynadlowski
2ee0d9018e
New engine: modf -> std::modf (fixes compilation on gcc)
2016-05-28 20:54:25 +00:00
Bart Trzynadlowski
1a908dd414
Legacy engine: expanded color index to 12 bits from 11. Does this affect any games?
2016-05-28 20:50:05 +00:00
Bart Trzynadlowski
5c1a240565
New engine: expanded color indices to 12 bits from 11. Added PolygonHeader::ColorIndex and SensorColorIndex methods.
2016-05-28 20:49:10 +00:00
Bart Trzynadlowski
2ef5203839
Forgot to describe one polygon header field in Model.cpp
2016-05-28 20:40:45 +00:00
Bart Trzynadlowski
e4a5c341dd
Updated polygon header descriptions
2016-05-28 20:33:10 +00:00
Bart Trzynadlowski
0ebb8d5d47
Legacy engine: Added stencil buffering for layered models and shadows. Not as accurate as new engine because stencil buffering is applied per-model rather than per-polygon, so the entire model must consist of stencil-tested polygons. In practice, though, this seems to work fine.
2016-05-28 19:52:30 +00:00
Ian Curtis
ce03c13847
Optimise non smooth texture repeat to only effect texture boundaries, rather than poly boundaries. Fixes a few ugly artefacts
2016-05-28 13:21:35 +00:00
Ian Curtis
661f19be19
fix transparency values, values are from 0-32, not 0-16 where the top bit disables
2016-05-27 22:20:57 +00:00
Ian Curtis
2086b1c9af
Stencil layered polys, fixes shadow z fighting in some of the games. Other games maybe using stipple alpha (yuck), not sure yet.
2016-05-27 19:30:40 +00:00
Ian Curtis
8979246642
remove bad rom patches
2016-05-26 16:21:42 +00:00
Ian Curtis
3f9936d664
don't clamp after spot light code, looks much closer to h/w
2016-05-26 09:06:09 +00:00
Bart Trzynadlowski
8ba8d7290e
Hooked up Sega Bass Fishing / Get Bass controls
2016-05-26 04:13:22 +00:00
Ian Curtis
89c987fae1
basic spotlight code
2016-05-26 00:08:12 +00:00
Bart Trzynadlowski
a0910f96fb
Fixed fog in legacy 3D engine. Now computed same as new engine, with 4-bit light modifier and corrected fog mixing in shaders.
2016-05-25 04:00:02 +00:00
Bart Trzynadlowski
6dc35f9563
Updated legacy engine vertex shader to use specular shininess and coefficient along with old equation. Still not correct (too strong compared to the old method).
2016-05-25 03:10:36 +00:00
Ian Curtis
c5ce2b9679
fix alpha testing for texture format 7
2016-05-22 19:17:15 +00:00
Ian Curtis
65d6342947
remove dead code
2016-05-21 16:26:00 +00:00
Ian Curtis
fd3eb49369
support 4 bit textures
2016-05-21 15:50:54 +00:00
Ian Curtis
e108b56664
correctly mask pointers
2016-05-19 22:23:50 +00:00
Ian Curtis
a79fd2786a
optimise hash table access for better performance
2016-05-19 19:04:44 +00:00
Ian Curtis
ff8d311dcc
support colour table pointer
2016-05-18 23:06:41 +00:00
Ian Curtis
7e3c097a31
remove debug code
2016-05-16 17:26:53 +00:00
Ian Curtis
828fd8ebb4
Fog start is apparently the fog value at the viewport (0,0,0) I guess like an ambient value. Default value is negative
2016-05-16 17:10:04 +00:00
Ian Curtis
9e279a0c1f
Non luminous polygons seem to be effected by the lightModifier also. API seems to have no restriction in this regard, neither does the SDK. The ocean hunter requires this for some of the 2d stuff. Light modifier values only seem to exist between 0-16, which is strange for 5 bits of precision. Possibly top bit disables the effect and lower 4 bits are the value. This clearly differs from the SDK, but without this the values come out clearly wrong.
2016-05-16 10:49:00 +00:00
Ian Curtis
62eafacfc3
adjust (hopefully correct) fog equation
2016-05-16 10:44:16 +00:00
Ian Curtis
bc08276d60
preliminary specular
2016-05-15 16:24:49 +00:00
Bart Trzynadlowski
c9147bc93d
- Removed a stale comment
2016-05-14 06:31:44 +00:00
Bart Trzynadlowski
897b1acb21
Legacy renderer changes:
...
- Updated shading model. Unfortunately, it is far from perfect but it seems to be the best I can do for now. Not really much of a difference from before except that the Scud Race castle is fixed at the expense of the Yosemite level in LA Machineguns being too bright.
- Added lots of notes in the shading code.
- Passing both specular coefficient and shininess to shader. This will probably break specular lighting for now until the shader is updated to use the shininess correctly.
- Color table address in polygon RAM is now obtained from culling nodes as they are traversed (found this in the Pro-1000 SDK).
2016-05-14 06:25:35 +00:00
Bart Trzynadlowski
147faf37c9
Added palette bit to list of bits to dump for analysis
2016-05-14 06:21:56 +00:00
Ian Curtis
c4b5b185c6
Disable light modifier on fog, seems not to work .. values don't make sense. Maybe the model3 doesn't use these.
2016-05-13 19:26:10 +00:00
Ian Curtis
c8f8cd1655
remove dead code
2016-05-13 08:40:53 +00:00
Ian Curtis
e295ad6868
double up polys for two sided polys, fixes some diffuse lighting problems
2016-05-13 08:39:48 +00:00
Bart Trzynadlowski
ddf3d5213d
FLT_MAX -> std::numeric_limits<float>::max()
2016-05-10 03:08:36 +00:00
Bart Trzynadlowski
8c082abab9
Added some IRQ-related code (commented out for now) from MAME findings. May incorporate in the future when investigating IRQs and timing again.
2016-05-10 03:08:03 +00:00
Ian Curtis
34c81eabee
update header documentation
2016-05-09 16:53:12 +00:00
Ian Curtis
43add90d2f
Fix bad texture seems
2016-05-09 16:26:34 +00:00
Bart Trzynadlowski
846c9d0edd
Reverted stencil mask change. This reintroduces the Scud Race 'ROLLING START' bug. Previous 'fix' did not work for Magical Truck Adventure anyway and also broke some games (Daytona 2 transmission and course select screen, ECA title screen). The stencil mask is not shifted by 16 pixels and I suspect that either there is some unknown trick to horizontal scrolling or that the behavior is affected by hidden raster timing registers hidden in the JTAG interface.
2016-05-08 21:17:02 +00:00
Bart Trzynadlowski
a9095e6c8e
Added a register read handler for tilegen (although nothing seems to benefit from it)
2016-05-08 20:30:45 +00:00
Bart Trzynadlowski
9249eaa29f
Fixed logic for clearing bottom layer. Added new functions to 2D renderer interface. Avoid drawing top and bottom surfaces when no layers are present there. Added some comments to tile
2016-05-08 19:27:08 +00:00
Bart Trzynadlowski
5d048958b9
Rewrote 2D renderer and fixed 2D layer priorities, stencil mask clipping (Scud Race 'ROLLING START'), and cleaned up code. Unfortunately, the new code is about 50% slower, mostly due to the need to perform stencil clipping after scrolling.
2016-05-07 21:54:03 +00:00
Ian Curtis
69a44a5d5f
add texture helper functions
2016-05-07 18:57:06 +00:00
Ian Curtis
242cddac2d
remove pointless loop
2016-05-07 15:45:02 +00:00
Ian Curtis
ded3168060
Split face colour from per vertex poly colour. Fixes colour bleeding between connected polys in harley.
2016-05-07 15:28:04 +00:00
Bart Trzynadlowski
595e24ad60
Changed XInput DLL failure message
2016-05-07 03:25:05 +00:00
Ian Curtis
05e1e4de37
update poly header class
2016-05-06 15:00:12 +00:00
Bart Trzynadlowski
fee1cfb126
Fixed compilation on gcc (gotos cannot cross variable declarations)
2016-05-05 22:01:59 +00:00
Ian Curtis
da4bab5f9b
Flat shaded polys can't share vertex normals with adjacent connected polys. Fixes some bad lighting in Harley on pavements
2016-05-05 08:06:06 +00:00
Ian Curtis
b2da849d90
support flat shading
2016-05-05 00:01:17 +00:00
Ian Curtis
3693a51cbb
Make sure texture is bound to correct texture unit, stop flashing micro textures in daytona
2016-05-04 16:30:15 +00:00
Ian Curtis
b0569007ef
set correct microtexture wrap mode
2016-05-04 10:30:58 +00:00
Ian Curtis
c545b9fd85
preliminary microtexture
2016-05-04 00:35:07 +00:00
Ian Curtis
396fba7d24
skip viewports marked as disabled, might stop parsing some bad data
2016-05-03 21:17:37 +00:00
Ian Curtis
6d1aa4d527
fix compilation
2016-05-03 18:38:06 +00:00
Bart Trzynadlowski
fa65542d76
Added support for A1RGB5 to BMP file writer and added a (commented-out) example of how to use it to dump texture memory in ~CReal3D()
2016-05-03 00:28:56 +00:00
Ian Curtis
c459772f8e
wrap invalid texture sizes, seems to fix bad textures in srally2 (skid marks)
2016-05-01 19:52:02 +00:00
Ian Curtis
7ec7906c0f
Turn off lighting if fixed shading (or no normals) flag is present. Fixes some of the lighting weirdness in scud
2016-04-30 20:32:44 +00:00
Bart Trzynadlowski
48767b2267
Legacy engine: fixed per-vertex fixed shading to incorporate Ian's findings that the intensity value is signed and that fixed shading applies only when lighting is enabled
2016-04-30 16:23:25 +00:00
Ian Curtis
23a5839d46
Daytona seems to use 3 bits for texture transparency, will figure it out later but for now this works
2016-04-30 09:02:38 +00:00
Ian Curtis
30ca1792bb
Fix fixed shading maths
2016-04-30 08:58:13 +00:00
Bart Trzynadlowski
e0513ec723
Updated to-do comments
2016-04-29 23:57:15 +00:00
Ian Curtis
c499e6640c
fixed shading code
2016-04-29 23:03:46 +00:00
Bart Trzynadlowski
57d5bc8367
Legacy engine: preliminary per-vertex fixed shading. Only limited testing with LA Machineguns (appears to work), Sega Rally 2 (appears okay), and Scud Race (fixes expert course bridge but not other mis-colored polygons).
2016-04-29 03:56:06 +00:00
Ian Curtis
2785ecd25f
read front buffer
2016-04-28 22:15:36 +00:00
Bart Trzynadlowski
7456aa745c
Luminous bit is now also dumped in polygon header analysis because shading modes may depend on whether or not lighting is enabled
2016-04-28 13:18:56 +00:00
Bart Trzynadlowski
34e8f00382
Legacy engine: extracting fixed shading component (but still can't use it because unsure of how to activate)
2016-04-28 13:18:15 +00:00
Bart Trzynadlowski
0ae9e8013b
Fixed polygon header bit analysis code: was forgetting to swap GL buffer back to retrieve pixels from last rendered frame
2016-04-28 01:27:35 +00:00
Ian Curtis
09e27e3082
color flag
2016-04-27 16:42:31 +00:00
Ian Curtis
a246fc1454
make compilable with visual studio
2016-04-27 11:17:12 +00:00
Ian Curtis
8f6ab2fcf9
simplify
2016-04-27 08:13:22 +00:00
Bart Trzynadlowski
3c5fcbd241
Forgot a newline
2016-04-27 04:15:22 +00:00
Bart Trzynadlowski
c0ec610e99
Polygon header bit analysis code (need to #define DEBUG and use -gfx-state option)
2016-04-27 04:09:50 +00:00
Bart Trzynadlowski
04fba1466d
Added utility function to write BMP files
2016-04-27 04:08:49 +00:00
Bart Trzynadlowski
3682ab7300
Updated polygon header description with double-sided bit (forgot it in last update!)
2016-04-26 23:06:40 +00:00
Bart Trzynadlowski
85a77bb016
Added an updated description of the polygon header to the top of Legacy3D/Models.cpp
2016-04-26 23:04:11 +00:00
Ian Curtis
3e8439c09c
fix model normals, add code for fixed shading, as of yet flag to turn it on is unknown
2016-04-26 09:06:48 +00:00
Bart Trzynadlowski
b730fc466c
Legacy engine: vertex normals are standalone and do not need to be added to polygon normal
2016-04-26 00:12:02 +00:00
Bart Trzynadlowski
112777385e
Added a debug option to load and render a single frame of graphics state from a save state file. Only available if compiled with DEBUG defined. Invoked using: -gfx-state=<file> on command line.
2016-04-24 17:06:14 +00:00
Bart Trzynadlowski
1265c8d184
Using IEmulator interface instead of CModel3 directly
2016-04-24 03:01:42 +00:00
Bart Trzynadlowski
9baa0488e3
Changed save state file version (r340 changed Real3D save format, breaking compatibility with older states, and states were probably already incompatible with 0.2a)
2016-04-24 01:50:03 +00:00
Bart Trzynadlowski
3bd8e20639
Fixed white space and warnings. Fixed second argument to -dis option in cases where other numerical parameters are specified on command line.
2016-04-24 01:40:16 +00:00
Bart Trzynadlowski
908d979cd7
Flattened out nested if-statements in new engine's fragment shader to improve compatibility with older GPUs (e.g., NVS 300)
2016-04-22 23:46:49 +00:00
Ian Curtis
58d187e59a
parse viewports in normal order
2016-04-19 22:05:12 +00:00