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Commit a1b2a0a3 authored by Nev3r's avatar Nev3r
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Properly take skybox viewpoint angle into account.

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with 4 additions and 2 deletions
src/r_portal.c
+ 4
− 2
View file @ a1b2a0a3
...@@ -279,6 +279,7 @@ void Portal_AddSkybox (const visplane_t* plane) ...@@ -279,6 +279,7 @@ void Portal_AddSkybox (const visplane_t* plane)
if (skyboxmo[1]) if (skyboxmo[1])
{ {
fixed_t x = 0, y = 0; fixed_t x = 0, y = 0;
angle_t ang = skyboxmo[0]->angle>>ANGLETOFINESHIFT;
if (mh->skybox_scalex > 0) if (mh->skybox_scalex > 0)
x = (viewx - skyboxmo[1]->x) / mh->skybox_scalex; x = (viewx - skyboxmo[1]->x) / mh->skybox_scalex;
...@@ -290,8 +291,9 @@ void Portal_AddSkybox (const visplane_t* plane) ...@@ -290,8 +291,9 @@ void Portal_AddSkybox (const visplane_t* plane)
else if (mh->skybox_scaley < 0) else if (mh->skybox_scaley < 0)
y = (viewy - skyboxmo[1]->y) * -mh->skybox_scaley; y = (viewy - skyboxmo[1]->y) * -mh->skybox_scaley;
portal->viewx += x; // Apply transform to account for the skybox viewport angle.
portal->viewy += y; portal->viewx += FixedMul(x,FINECOSINE(ang)) - FixedMul(y, FINESINE(ang));
portal->viewy += FixedMul(x, FINESINE(ang)) + FixedMul(y,FINECOSINE(ang));
} }
if (mh->skybox_scalez > 0) if (mh->skybox_scalez > 0)
......
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