diff --git a/src/engine/aa.hh b/src/engine/aa.hh
index dcf09e0..0d37976 100644
--- a/src/engine/aa.hh
+++ b/src/engine/aa.hh
@@ -5,6 +5,8 @@
 
 #include <shared/geom.hh>
 
+enum { AA_UNUSED = 0, AA_LUMA, AA_MASKED, AA_SPLIT, AA_SPLIT_LUMA, AA_SPLIT_MASKED };
+
 extern matrix4 nojittermatrix;
 
 void setaavelocityparams(GLenum tmu = GL_TEXTURE0);
diff --git a/src/engine/engine.hh b/src/engine/engine.hh
index 297bd4d..fa1b9d3 100644
--- a/src/engine/engine.hh
+++ b/src/engine/engine.hh
@@ -11,56 +11,4 @@ extern physent *camera1;                // special ent that acts as camera, same
 extern int worldscale, worldsize;
 extern int xtraverts, xtravertsva;
 
-// renderlights
-
-extern int calcshadowinfo(const extentity &e, vec &origin, float &radius, vec &spotloc, int &spotangle, float &bias);
-extern void rendershadowatlas();
-extern bool useradiancehints();
-extern void renderradiancehints();
-extern void clearradiancehintscache();
-extern void cleanuplights();
-extern void workinoq();
-
-extern int calcbbcsmsplits(const ivec &bbmin, const ivec &bbmax);
-extern int calcspherecsmsplits(const vec &center, float radius);
-extern int calcbbrsmsplits(const ivec &bbmin, const ivec &bbmax);
-extern int calcspherersmsplits(const vec &center, float radius);
-
-extern int transparentlayer;
-
-extern int gw, gh, gdepthformat, ghasstencil;
-extern GLuint gdepthtex, gcolortex, gnormaltex, gglowtex, gdepthrb, gstencilrb;
-extern int msaasamples, msaalight;
-extern GLuint msdepthtex, mscolortex, msnormaltex, msglowtex, msdepthrb, msstencilrb;
-extern vector<vec2> msaapositions;
-enum { AA_UNUSED = 0, AA_LUMA, AA_MASKED, AA_SPLIT, AA_SPLIT_LUMA, AA_SPLIT_MASKED };
-
-extern void cleanupgbuffer();
-extern void initgbuffer();
-extern bool usepacknorm();
-extern void maskgbuffer(const char *mask);
-extern void bindgdepth();
-extern void preparegbuffer(bool depthclear = true);
-extern void rendergbuffer(bool depthclear = true);
-extern void shadesky();
-extern void shadegbuffer();
-extern void shademinimap(const vec &color = vec(-1, -1, -1));
-extern void shademodelpreview(int x, int y, int w, int h, bool background = true, bool scissor = false);
-extern void rendertransparent();
-extern void renderao();
-extern void loadhdrshaders(int aa = AA_UNUSED);
-extern void processhdr(GLuint outfbo = 0, int aa = AA_UNUSED);
-extern void copyhdr(int sw, int sh, GLuint fbo, int dw = 0, int dh = 0, bool flipx = false, bool flipy = false, bool swapxy = false);
-extern void setuplights();
-extern void setupgbuffer();
-extern GLuint shouldscale();
-extern void doscale(GLuint outfbo = 0);
-extern bool debuglights();
-extern void cleanuplights();
-
-extern int avatarmask;
-extern bool useavatarmask();
-extern void enableavatarmask();
-extern void disableavatarmask();
-
 #endif
diff --git a/src/engine/renderlights.cc b/src/engine/renderlights.cc
index f1e94d1..0b335f0 100644
--- a/src/engine/renderlights.cc
+++ b/src/engine/renderlights.cc
@@ -21,7 +21,8 @@
 #define CHANGE_SHADERS 0
 
 int gw = -1, gh = -1, bloomw = -1, bloomh = -1, lasthdraccum = 0;
-GLuint gfbo = 0, gdepthtex = 0, gcolortex = 0, gnormaltex = 0, gglowtex = 0, gdepthrb = 0, gstencilrb = 0;
+GLuint gfbo = 0, gdepthtex = 0, gcolortex = 0, gnormaltex = 0, gglowtex = 0;
+static GLuint gdepthrb = 0, gstencilrb = 0;
 bool gdepthinit = false;
 int scalew = -1, scaleh = -1;
 GLuint scalefbo[2] = { 0, 0 }, scaletex[2] = { 0, 0 };
@@ -30,7 +31,8 @@ int hdrclear = 0;
 GLuint refractfbo = 0, refracttex = 0;
 GLenum bloomformat = 0, hdrformat = 0, stencilformat = 0;
 bool hdrfloat = false;
-GLuint msfbo = 0, msdepthtex = 0, mscolortex = 0, msnormaltex = 0, msglowtex = 0, msdepthrb = 0, msstencilrb = 0, mshdrfbo = 0, mshdrtex = 0, msrefractfbo = 0, msrefracttex = 0;
+GLuint msfbo = 0, msdepthtex = 0, mscolortex = 0, msnormaltex = 0, msglowtex = 0;
+static GLuint msdepthrb = 0, msstencilrb = 0, mshdrfbo = 0, mshdrtex = 0, msrefractfbo = 0, msrefracttex = 0;
 vector<vec2> msaapositions;
 int aow = -1, aoh = -1;
 GLuint aofbo[4] = { 0, 0, 0, 0 }, aotex[4] = { 0, 0, 0, 0 }, aonoisetex = 0;
diff --git a/src/engine/renderlights.hh b/src/engine/renderlights.hh
index 23cea9c..f6d8b17 100644
--- a/src/engine/renderlights.hh
+++ b/src/engine/renderlights.hh
@@ -1,9 +1,12 @@
 #ifndef ENGINE_RENDERLIGHTS_HH
 #define ENGINE_RENDERLIGHTS_HH
 
+#include <shared/gl.hh>
 #include <shared/tools.hh>
 #include <shared/geom.hh>
 
+#include "aa.hh"
+
 #define LIGHTTILE_MAXW 16
 #define LIGHTTILE_MAXH 16
 
@@ -59,4 +62,54 @@ static inline bool bbinsidespot(const vec &origin, const vec &dir, int spot, con
 
 extern matrix4 worldmatrix, screenmatrix;
 
+struct extentity; // FIXME
+
+extern int transparentlayer;
+extern int gw, gh, ghasstencil;
+extern GLuint gdepthtex, gcolortex, gnormaltex, gglowtex;
+extern GLuint msdepthtex, mscolortex, msnormaltex, msglowtex;
+extern int msaasamples, msaalight;
+extern vector<vec2> msaapositions;
+
+int calcshadowinfo(const extentity &e, vec &origin, float &radius, vec &spotloc, int &spotangle, float &bias);
+void rendershadowatlas();
+bool useradiancehints();
+void renderradiancehints();
+void clearradiancehintscache();
+void cleanuplights();
+void workinoq();
+
+int calcbbcsmsplits(const ivec &bbmin, const ivec &bbmax);
+int calcspherecsmsplits(const vec &center, float radius);
+int calcbbrsmsplits(const ivec &bbmin, const ivec &bbmax);
+int calcspherersmsplits(const vec &center, float radius);
+
+void cleanupgbuffer();
+void initgbuffer();
+bool usepacknorm();
+void maskgbuffer(const char *mask);
+void bindgdepth();
+void preparegbuffer(bool depthclear = true);
+void rendergbuffer(bool depthclear = true);
+void shadesky();
+void shadegbuffer();
+void shademinimap(const vec &color = vec(-1, -1, -1));
+void shademodelpreview(int x, int y, int w, int h, bool background = true, bool scissor = false);
+void rendertransparent();
+void renderao();
+void loadhdrshaders(int aa = AA_UNUSED);
+void processhdr(GLuint outfbo = 0, int aa = AA_UNUSED);
+void copyhdr(int sw, int sh, GLuint fbo, int dw = 0, int dh = 0, bool flipx = false, bool flipy = false, bool swapxy = false);
+void setuplights();
+void setupgbuffer();
+GLuint shouldscale();
+void doscale(GLuint outfbo = 0);
+bool debuglights();
+
+extern int avatarmask;
+
+bool useavatarmask();
+void enableavatarmask();
+void disableavatarmask();
+
 #endif
diff --git a/src/engine/stain.cc b/src/engine/stain.cc
index 42c4d29..42f2264 100644
--- a/src/engine/stain.cc
+++ b/src/engine/stain.cc
@@ -2,6 +2,7 @@
 #include "main.hh" // initing, loadprogress
 #include "material.hh"
 #include "rendergl.hh"
+#include "renderlights.hh"
 #include "rendermodel.hh" // loadmapmodel
 #include "stain.hh"
 #include "texture.hh"