emulate elan v10 (fixes modvol in vf4, initd, beachspiker, wldrider)
wrong color order for model and vtx color
model param override xor support
improved light direction precision. Angle attenuation algo change
get rid of alpha light and modifier volume hacks
texture dma xfer from main and elan ram
gl4: use geometry only vtx and geom shaders for depth pass
2-volume support
pvr: link multipass TA contexts. Each pass has its own.
pvr: get rid of context pool
naomi2: constant color shading. Use model diffuse and specular
selection. Don't use vtx color for offset color.
naomi2: pseudo-parallel lights fix
naomi2: pass-through TA data needs forced list type. Terminate with
end-of-list
enable RTT copy to vram for Beach Spikers