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update to new fog parameters

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This commit is contained in:
David Rose 2001-11-02 18:53:47 +00:00
parent 9768ef255e
commit 452eb87c07
1 changed files with 16 additions and 8 deletions
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24
panda/src/dxgsg/dxGraphicsStateGuardian.cxx
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@ -826,11 +826,12 @@ dx_init( LPDIRECTDRAW7 context,
if((pCurPixFmt->dwRGBBitCount==16) &&
#ifdef MAKE_FPSMETER_TRANSPARENT
(pCurPixFmt->dwFlags & DDPF_ALPHAPIXELS) &&
(pCurPixFmt->dwRGBAlphaBitMask==0x8000))
(pCurPixFmt->dwRGBAlphaBitMask==0x8000)
#else
((pCurPixFmt->dwFlags & DDPF_ALPHAPIXELS)==0) &&
(pCurPixFmt->dwBBitMask==0x001F))
(pCurPixFmt->dwBBitMask==0x001F)
#endif
) // emacs gets confused if we don't match parens accurately.
break;
}
@ -4451,7 +4452,7 @@ apply_fog(Fog *fog) {
// should probably avoid doing redundant SetRenderStates, but whatever
_d3dDevice->SetRenderState((D3DRENDERSTATETYPE)_doFogType, d3dfogmode);
Colorf fog_colr = fog->get_color();
const Colorf &fog_colr = fog->get_color();
_d3dDevice->SetRenderState(D3DRENDERSTATE_FOGCOLOR,
MY_D3DRGBA(fog_colr[0], fog_colr[1], fog_colr[2], 0.0f)); // Alpha bits are not used
@ -4461,19 +4462,26 @@ apply_fog(Fog *fog) {
switch (panda_fogmode) {
case Fog::M_linear:
{
float fog_start,fog_end;
fog->get_range(fog_start,fog_end);
// Linear fog may be world-relative or
// camera-relative. The fog object knows how to
// decode its parameters into camera-relative
// properties.
float fog_start, fog_end;
fog->compute_linear_range(fog_start, fog_end,
_current_projection_node,
_coordinate_system);
_d3dDevice->SetRenderState( D3DRENDERSTATE_FOGSTART,
*((LPDWORD) (&fog_start)) );
*((LPDWORD) (&fog_start)) );
_d3dDevice->SetRenderState( D3DRENDERSTATE_FOGEND,
*((LPDWORD) (&fog_end)) );
*((LPDWORD) (&fog_end)) );
}
break;
case Fog::M_exponential:
case Fog::M_exponential_squared:
{
float fog_density = fog->get_density();
// Exponential fog is always camera-relative.
float fog_density = fog->get_exp_density();
_d3dDevice->SetRenderState( D3DRENDERSTATE_FOGDENSITY,
*((LPDWORD) (&fog_density)) );
}