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- initialize clipper with the view frustum for better performance

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- change translucent objects to be pointers for faster sorting
This commit is contained in:
Magnus Norddahl 2017-03-24 22:04:07 +01:00
commit 321e2da979
6 changed files with 53 additions and 18 deletions
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30
src/polyrenderer/scene/poly_cull.cpp
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@ -287,6 +287,23 @@ bool PolyCull::GetAnglesForLine(double x1, double y1, double x2, double y2, angl
return !IsSegmentCulled(angle1, angle2);
}
void PolyCull::MarkViewFrustum()
{
// Clips things outside the viewing frustum.
auto &viewpoint = PolyRenderer::Instance()->Viewpoint;
auto &viewwindow = PolyRenderer::Instance()->Viewwindow;
double tilt = fabs(viewpoint.Angles.Pitch.Degrees);
if (tilt > 46.0) // If the pitch is larger than this you can look all around
return;
double floatangle = 2.0 + (45.0 + ((tilt / 1.9)))*viewpoint.FieldOfView.Degrees*48.0 / AspectMultiplier(viewwindow.WidescreenRatio) / 90.0;
angle_t a1 = DAngle(floatangle).BAMs();
if (a1 < ANGLE_180)
{
MarkSegmentCulled(AngleToPseudo(viewpoint.Angles.Yaw.BAMs() + a1), AngleToPseudo(viewpoint.Angles.Yaw.BAMs() - a1));
}
}
//-----------------------------------------------------------------------------
//
// ! Returns the pseudoangle between the line p1 to (infinity, p1.y) and the
@ -320,3 +337,16 @@ angle_t PolyCull::PointToPseudoAngle(double x, double y)
return xs_Fix<30>::ToFix(result);
}
}
angle_t PolyCull::AngleToPseudo(angle_t ang)
{
double vecx = cos(ang * M_PI / ANGLE_180);
double vecy = sin(ang * M_PI / ANGLE_180);
double result = vecy / (fabs(vecx) + fabs(vecy));
if (vecx < 0)
{
result = 2.f - result;
}
return xs_Fix<30>::ToFix(result);
}