Xargon/Supermodel
1
0
Fork 0
mirror of https://github.com/RetroDECK/Supermodel.git synced 2025-02-16 17:35:39 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

When the translator map?? bit is enabled the colour format seems to be 4-5bit. Max observed value is 16. Scaling these values up seems to produce the correct colours in harley and dirt devils.

Browse source
This commit is contained in:
Ian Curtis 2017-02-16 17:20:42 +00:00
parent 7407d03036
commit 4a116190b5
3 changed files with 12 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
Src/Graphics/New3D/New3D.cpp
View file

@ -419,7 +419,6 @@ void CNew3D::DescendCullingNode(UINT32 addr)
{
tx = 32 * ((node[0x02] >> 7) & 0x3F);
ty = 32 * (node[0x02] & 0x1F);
// apply texture offsets, else retain current ones
if ((node[0x02] & 0x8000)) {
m_nodeAttribs.currentTexOffsetX = tx;
@ -1066,15 +1065,15 @@ void CNew3D::CacheModel(Model *m, const UINT32 *data)
p.faceColour[0] = ((m_polyRAM[m_colorTableAddr + colorIdx] >> 16) & 0xFF) / 255.f;
}
else {
if (ph.ColorDisabled()) { // no colours were set
p.faceColour[0] = 1.0f;
p.faceColour[1] = 1.0f;
p.faceColour[2] = 1.0f;
}
else {
p.faceColour[0] = ((ph.header[4] >> 24)) / 255.f;
p.faceColour[1] = ((ph.header[4] >> 16) & 0xFF) / 255.f;
p.faceColour[2] = ((ph.header[4] >> 8) & 0xFF) / 255.f;
p.faceColour[0] = ((ph.header[4] >> 24)) / 255.f;
p.faceColour[1] = ((ph.header[4] >> 16) & 0xFF) / 255.f;
p.faceColour[2] = ((ph.header[4] >> 8) & 0xFF) / 255.f;
if (ph.TranslatorMap()) {
p.faceColour[0] *= 15.9375f; // not using 16, as 16x16=256 not 255 and that would overflow (potentially)
p.faceColour[1] *= 15.9375f;
p.faceColour[2] *= 15.9375f;
}
}

2
Src/Graphics/New3D/PolyHeader.cpp
View file

@ -249,7 +249,7 @@ int PolyHeader::SensorColorIndex()
return (header[4] >> 20) & 0xFFF;
}
bool PolyHeader::ColorDisabled()
bool PolyHeader::TranslatorMap()
{
return (header[4] & 0x80) > 0;
}

4
Src/Graphics/New3D/PolyHeader.h
View file

@ -48,7 +48,7 @@ xxxxxxxx xxxxxxxx xxxxxxxx -------- Polygon normal Z coordinate(2.22 fixed poin
0x04:
xxxxxxxx xxxxxxxx xxxxxxxx -------- Color (RGB888 or two 12-bit indexes, sensor color and color)
-------- -------- -------- x------- Translator map enable ? (treated as color modulation disabled)
-------- -------- -------- x------- Translator map enable ? (Seems to be some 4/5bit colour format. Max observed value=16)
-------- -------- -------- -x------ Texture page
-------- -------- -------- ---xxxxx Upper 5 bits of texture U coordinate
@ -121,7 +121,7 @@ public:
void Color(UINT8& r, UINT8& g, UINT8& b);
int ColorIndex();
int SensorColorIndex();
bool ColorDisabled();
bool TranslatorMap();
int Page();
// header 5