Commit graph

18 commits

Author SHA1 Message Date
Ian Curtis 5b9741bd5d Support high priority polygons. They are treated as a separate overlay plane by the h/w. Fixes some missing fx in harley. 2017-02-20 17:22:32 +00:00
Ian Curtis 24cbeed526 Dynamically calculate near/far frustum planes for each viewport priority layer by clipping the overlapping meshes with the 4 frustum planes. A bit brute forcy, but the results are great. 2017-02-07 14:05:03 +00:00
Ian Curtis 144125a62e mark the nodes without valid distances set 2017-02-05 15:36:05 +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 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 ef11990d19 Parse out scrollfog value used for blending over the 2d background. 2016-10-08 15:41:16 +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 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 48a79a8f14 cleaning 2016-06-10 10:18:47 +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
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 bc08276d60 preliminary specular 2016-05-15 16:24:49 +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
Ian Curtis c545b9fd85 preliminary microtexture 2016-05-04 00:35:07 +00:00
Bart Trzynadlowski 1d4f5c871d Fixed Types.h include 2016-04-04 03:43:55 +00:00
Ian Curtis 4992e59673 Cache rom models, for better performance. 2016-03-26 22:44:26 +00:00
Ian Curtis f031e5d095 finish front/back face culling code based on matrix determinant. Optimised opengl to avoid redundant state changes. 2016-03-22 23:39:59 +00:00
Bart Trzynadlowski 34301e97e1 Adding new 3D engine by Ian Curtis. Old engine moved to Graphics/Legacy3D/. 2016-03-21 04:10:14 +00:00