72 commits

Author	SHA1	Message	Date
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	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	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	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	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	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
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
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
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
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
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	2ee0d9018e	New engine: modf -> std::modf (fixes compilation on gcc)	2016-05-28 20:54:25 +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
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	c5ce2b9679	fix alpha testing for texture format 7	2016-05-22 19:17:15 +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	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	bc08276d60	preliminary specular	2016-05-15 16:24:49 +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
Ian Curtis	43add90d2f	Fix bad texture seems	2016-05-09 16:26:34 +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	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	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	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