diff --git a/code/renderer/tr_light.c b/code/renderer/tr_light.c
index c9d176dc..94d6f6c0 100644
--- a/code/renderer/tr_light.c
+++ b/code/renderer/tr_light.c
@@ -45,10 +45,74 @@ typedef struct {
   int numLights;
 } dlightInfo_t;
 
+typedef struct {
+  vec3_t point;
+  int s;
+  int t;
+} patchLightBlock_t;
+
 dlightInfo_t dli;
 
 void R_SetupEntityLightingGrid(trRefEntity_t* ent);
 
+static int R_RecursiveDlightPatch(patchLightBlock_t* plb) {
+    patchLightBlock_t cut[4];
+    qboolean added;
+    int index;
+
+    // FIXME: unimplemented
+    return 0;
+}
+
+int R_RealDlightPatch(srfGridMesh_t* srf, int dlightBit) {
+    int x, y;
+    int i, j;
+    int i2, j2;
+    int steps[2][2];
+    dlight_t* dl;
+    qboolean added;
+    float* origin;
+    drawVert_t* dv;
+
+    // FIXME: unimplemented
+    return 0;
+}
+
+int R_RealDlightFace(srfSurfaceFace_t* srf, int dlightBits) {
+    int x, y;
+    byte* src, * dst;
+    int i, j;
+    vec3_t vec;
+    vec3_t vecStepS, vecStepT;
+    dlight_t* dl;
+    float d;
+    qboolean added;
+    float* origin;
+
+    // FIXME: unimplemented
+    return 0;
+}
+
+int R_RealDlightTerrain(cTerraPatchUnpacked_t* srf, int dlightBits) {
+    dlight_t* dl;
+    int x, y;
+    byte* dst, * src;
+    vec3_t vec;
+    float delta, dist;
+    float* origin;
+    int i, j, k;
+    int di, dj;
+    qboolean added;
+    float lmScale;
+    int lumelsPerHeight;
+    float heightPerLumelSquared;
+    float z00, z01;
+    float z10, z11;
+
+    // FIXME: unimplemented
+    return 0;
+}
+
 /*
 ===============
 R_TransformDlights
@@ -526,3 +590,14 @@ qboolean R_AllocLMBlock(int w, int h, int* x, int* y) {
 
 	return qtrue;
 }
+
+qboolean R_DlightSample(byte* src, const vec3_t vec, byte* dst) {
+	int r, g, b;
+	int k;
+	qboolean added;
+	vec3_t dir;
+	float add;
+
+	// FIXME: unimplemented
+	return qfalse;
+}
diff --git a/code/renderer/tr_local.h b/code/renderer/tr_local.h
index 03d31198..09490f8e 100644
--- a/code/renderer/tr_local.h
+++ b/code/renderer/tr_local.h
@@ -1906,6 +1906,9 @@ void R_GetLightingForSmoke(vec3_t vLight, const vec3_t vOrigin);
 void R_SetupEntityLighting( const trRefdef_t *refdef, trRefEntity_t *ent );
 void RB_SetupEntityGridLighting();
 void RB_SetupStaticModelGridLighting(trRefdef_t* refdef, cStaticModelUnpacked_t* ent, const vec3_t lightOrigin);
+int R_RealDlightPatch(srfGridMesh_t* srf, int dlightBit);
+int R_RealDlightFace(srfSurfaceFace_t* srf, int dlightBits);
+int R_RealDlightTerrain(cTerraPatchUnpacked_t* srf, int dlightBits);
 void R_TransformDlights( int count, dlight_t *dl, orientationr_t *ori );
 void RB_Light_Real(unsigned char* colors);
 void RB_Sphere_BuildDLights();