mirrors/dolphin
0
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-04-27 06:48:33 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Some video SW clean up and bug fixes. Did a hacky fix for bad light data. Add fog rendering. Add some offsets to make rasterized pixel locations and texture coordinates more accurate.

Browse source 
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5361 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
donkopunchstania 2010-04-14 03:27:45 +00:00
parent bfe6e92c15
commit c2ac9be9b2
14 changed files with 179 additions and 78 deletions
Download patch file Download diff file Expand all files Collapse all files

51
Source/Plugins/Plugin_VideoSoftware/Src/Tev.cpp
View file

@ -705,6 +705,57 @@ void Tev::Draw()
Position[2] = ztex & 0x00ffffff;
}
// fog
if (bpmem.fog.c_proj_fsel.fsel)
{
float ze;
if (bpmem.fog.c_proj_fsel.proj == 0)
{
// perspective
// ze = A/(B - Zs)
s32 denom = bpmem.fog.b_magnitude - (Position[2] >> bpmem.fog.b_shift);
ze = bpmem.fog.a.GetA() / (float)denom;
}
else
{
// orthographic
// ze = a*Zs
ze = bpmem.fog.a.GetA() / (float)Position[2];
}
ze = (ze * (float)0xffffff) - bpmem.fog.c_proj_fsel.GetC();
// clamp 0 to 1
float fog = (ze<0.0f) ? 0.0f : ((ze>1.0f) ? 1.0f : ze);
switch (bpmem.fog.c_proj_fsel.fsel)
{
case 4: // exp
fog = 1.0f - pow(2.0f, -8.0f * fog);
break;
case 5: // exp2
fog = 1.0f - pow(2.0f, -8.0f * fog * fog);
break;
case 6: // backward exp
fog = 1.0f - fog;
fog = 1.0f - pow(2.0f, -8.0f * fog);
break;
case 7: // backward exp2
fog = 1.0f - fog;
fog = 1.0f - pow(2.0f, -8.0f * fog * fog);
break;
}
// lerp from output to fog color
u32 fogInt = (u32)(fog * 256);
u32 invFog = 256 - fogInt;
output[RED_C] = (output[RED_C] * invFog + fogInt * bpmem.fog.color.r) >> 8;
output[GRN_C] = (output[GRN_C] * invFog + fogInt * bpmem.fog.color.g) >> 8;
output[BLU_C] = (output[BLU_C] * invFog + fogInt * bpmem.fog.color.b) >> 8;
}
if (!bpmem.zcontrol.zcomploc && bpmem.zmode.testenable)
{
if (!EfbInterface::ZCompare(Position[0], Position[1], Position[2]))