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- allow 90° rotations in skybox sectors.

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This commit is contained in:
Christoph Oelckers 2016-04-17 11:58:26 +02:00
parent 0a35027f67
commit 8a010ab871
1 changed files with 12 additions and 8 deletions
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20
src/gl/scene/gl_flats.cpp
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@ -339,33 +339,37 @@ void GLFlat::DrawSkyboxSector(int pass, bool processlights)
}
float z = plane.plane.ZatPoint(0., 0.) + dz;
static float uvals[] = { 0, 0, 1, 1 };
static float vvals[] = { 1, 0, 0, 1 };
int rot = -xs_FloorToInt(plane.Angle / 90.f);
ptr->x = minx;
ptr->z = z;
ptr->y = miny;
ptr->u = 0;
ptr->v = 1;
ptr->u = uvals[rot & 3];
ptr->v = vvals[rot & 3];
ptr++;
ptr->x = minx;
ptr->z = z;
ptr->y = maxy;
ptr->u = 0;
ptr->v = 0;
ptr->u = uvals[(rot + 1) & 3];
ptr->v = vvals[(rot + 1) & 3];
ptr++;
ptr->x = maxx;
ptr->z = z;
ptr->y = maxy;
ptr->u = 1;
ptr->v = 0;
ptr->u = uvals[(rot + 2) & 3];
ptr->v = vvals[(rot + 2) & 3];
ptr++;
ptr->x = maxx;
ptr->z = z;
ptr->y = miny;
ptr->u = 1;
ptr->v = 1;
ptr->u = uvals[(rot + 3) & 3];
ptr->v = vvals[(rot + 3) & 3];
ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_FAN);