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- fix software renderer dynamic lights not working properly in mirrors

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(cherry picked from commit f5386a706f)
This commit is contained in:
Magnus Norddahl 2018-06-05 20:09:02 +02:00 committed by drfrag666
parent d0ff0bcaf2
commit f70715e25a
2 changed files with 15 additions and 2 deletions
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7
src/swrenderer/line/r_walldraw.cpp
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@ -189,7 +189,12 @@ namespace swrenderer
{
auto viewport = Thread->Viewport.get();
drawerargs.dc_viewpos.X = (float)((x + 0.5 - viewport->CenterX) / viewport->CenterX * zcol);
int tx = x;
bool mirror = !!(Thread->Portal->MirrorFlags & RF_XFLIP);
if (mirror)
tx = viewwidth - tx - 1;
drawerargs.dc_viewpos.X = (float)((tx + 0.5 - viewport->CenterX) / viewport->CenterX * zcol);
drawerargs.dc_viewpos.Y = zcol;
drawerargs.dc_viewpos.Z = (float)((viewport->CenterY - y1 - 0.5) / viewport->InvZtoScale * zcol);
drawerargs.dc_viewpos_step.Z = (float)(-zcol / viewport->InvZtoScale);

10
src/swrenderer/plane/r_flatplane.cpp
View file

@ -205,13 +205,21 @@ namespace swrenderer
if (r_dynlights)
{
int tx = x1;
bool mirror = !!(Thread->Portal->MirrorFlags & RF_XFLIP);
if (mirror)
tx = viewwidth - tx - 1;
// Find row position in view space
float zspan = (float)(planeheight / (fabs(y + 0.5 - viewport->CenterY) / viewport->InvZtoScale));
drawerargs.dc_viewpos.X = (float)((x1 + 0.5 - viewport->CenterX) / viewport->CenterX * zspan);
drawerargs.dc_viewpos.X = (float)((tx + 0.5 - viewport->CenterX) / viewport->CenterX * zspan);
drawerargs.dc_viewpos.Y = zspan;
drawerargs.dc_viewpos.Z = (float)((viewport->CenterY - y - 0.5) / viewport->InvZtoScale * zspan);
drawerargs.dc_viewpos_step.X = (float)(zspan / viewport->CenterX);
if (mirror)
drawerargs.dc_viewpos_step.X = -drawerargs.dc_viewpos_step.X;
// Plane normal
drawerargs.dc_normal.X = 0.0f;
drawerargs.dc_normal.Y = 0.0f;