diff --git a/src/gl/dynlights/a_dynlight.cpp b/src/gl/dynlights/a_dynlight.cpp
index b19e1924a..91292d350 100644
--- a/src/gl/dynlights/a_dynlight.cpp
+++ b/src/gl/dynlights/a_dynlight.cpp
@@ -575,7 +575,7 @@ void ADynamicLight::CollectWithinRadius(const fixedvec3 &pos, subsector_t *subSe
 					if (other->validcount != ::validcount)
 					{
 						subsector_t *othersub = R_PointInSubsector(other->v1->x + other->dx / 2, other->v1->y + other->dy / 2);
-						if (othersub->validcount != ::validcount) CollectWithinRadius(PosRelative(other), othersub, radius);
+						if (othersub->validcount != ::validcount) CollectWithinRadius(_f_PosRelative(other), othersub, radius);
 					}
 				}
 			}
@@ -603,7 +603,7 @@ void ADynamicLight::CollectWithinRadius(const fixedvec3 &pos, subsector_t *subSe
 		{
 			fixedvec2 refpos = { other->v1->x + other->dx / 2 + FLOAT2FIXED(sb->Scale.X), other->v1->y + other->dy / 2 + FLOAT2FIXED(sb->Scale.Y) };
 			subsector_t *othersub = R_PointInSubsector(refpos.x, refpos.y);
-			if (othersub->validcount != ::validcount) CollectWithinRadius(PosRelative(othersub->sector), othersub, radius);
+			if (othersub->validcount != ::validcount) CollectWithinRadius(_f_PosRelative(othersub->sector), othersub, radius);
 		}
 	}
 	if (!subSec->sector->PortalBlocksSight(sector_t::floor))
@@ -614,7 +614,7 @@ void ADynamicLight::CollectWithinRadius(const fixedvec3 &pos, subsector_t *subSe
 		{
 			fixedvec2 refpos = { other->v1->x + other->dx / 2 + FLOAT2FIXED(sb->Scale.X), other->v1->y + other->dy / 2 + FLOAT2FIXED(sb->Scale.Y) };
 			subsector_t *othersub = R_PointInSubsector(refpos.x, refpos.y);
-			if (othersub->validcount != ::validcount) CollectWithinRadius(PosRelative(othersub->sector), othersub, radius);
+			if (othersub->validcount != ::validcount) CollectWithinRadius(_f_PosRelative(othersub->sector), othersub, radius);
 		}
 	}
 }
diff --git a/src/gl/dynlights/gl_dynlight1.cpp b/src/gl/dynlights/gl_dynlight1.cpp
index b57882dcf..926b75aae 100644
--- a/src/gl/dynlights/gl_dynlight1.cpp
+++ b/src/gl/dynlights/gl_dynlight1.cpp
@@ -90,7 +90,7 @@ bool gl_GetLight(int group, Plane & p, ADynamicLight * light, bool checkside, bo
 	Vector fn, pos;
 	int i = 0;
 
-	fixedvec3 lpos = light->PosRelative(group);
+	fixedvec3 lpos = light->_f_PosRelative(group);
     float x = FIXED2FLOAT(lpos.x);
 	float y = FIXED2FLOAT(lpos.y);
 	float z = FIXED2FLOAT(lpos.z);
diff --git a/src/gl/system/gl_framebuffer.cpp b/src/gl/system/gl_framebuffer.cpp
index 7a3fef1a3..8d87d7d6a 100644
--- a/src/gl/system/gl_framebuffer.cpp
+++ b/src/gl/system/gl_framebuffer.cpp
@@ -485,7 +485,7 @@ void OpenGLFrameBuffer::Clear(int left, int top, int right, int bottom, int palc
 
 void OpenGLFrameBuffer::FillSimplePoly(FTexture *texture, FVector2 *points, int npoints,
 	double originx, double originy, double scalex, double scaley,
-	angle_t rotation, FDynamicColormap *colormap, int lightlevel)
+	DAngle rotation, FDynamicColormap *colormap, int lightlevel)
 {
 	if (GLRenderer != NULL)
 	{
diff --git a/src/gl/system/gl_framebuffer.h b/src/gl/system/gl_framebuffer.h
index c2a4fc277..501d40925 100644
--- a/src/gl/system/gl_framebuffer.h
+++ b/src/gl/system/gl_framebuffer.h
@@ -68,7 +68,7 @@ public:
 
 	void FillSimplePoly(FTexture *tex, FVector2 *points, int npoints,
 		double originx, double originy, double scalex, double scaley,
-		angle_t rotation, FDynamicColormap *colormap, int lightlevel);
+		DAngle rotation, FDynamicColormap *colormap, int lightlevel);
 
 	FNativePalette *CreatePalette(FRemapTable *remap);