diff --git a/Makefile b/Makefile
index 7107ca8..e3dc527 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,7 @@ IPU_OBJ = $(addprefix build/ipu_obj/, \
 	ipu_vertices.gp \
 	ipu_transfer.gp \
 	ipu_malloc.gp \
+	ipu_texturetiles.gp \
 	i_video.gp \
 	g_game.gp \
 	g_game_codelets.gp \
diff --git a/src/ipu/ipu_malloc.c b/src/ipu/ipu_malloc.c
index 193f770..9fb36c0 100644
--- a/src/ipu/ipu_malloc.c
+++ b/src/ipu/ipu_malloc.c
@@ -1,8 +1,8 @@
 #include <stdlib.h>
 
-#include "ipu_malloc.h"
 #include "print.h"
-#include "r_main.h"
+#include "ipu_malloc.h"
+#include "ipu_utils.h"
 
 #define ALIGN32(x) (((x) + 3) & (~3))
 
diff --git a/src/ipu/ipu_texturetiles.cpp b/src/ipu/ipu_texturetiles.cpp
new file mode 100644
index 0000000..7d9287a
--- /dev/null
+++ b/src/ipu/ipu_texturetiles.cpp
@@ -0,0 +1,33 @@
+
+#include "doomtype.h"
+
+#include "ipu_utils.h"
+#include "ipu_texturetiles.h"
+// #include "../../xcom.hpp"
+
+
+#define NUMCACHECOLS (20)
+#define CACHECOLSIZE (128)
+static byte columnCache[NUMCACHECOLS][CACHECOLSIZE];
+
+
+extern "C" 
+void IPU_R_InitColumnRequester(void) {
+    // TMP colours
+    for (int i = 0; i < NUMCACHECOLS; ++i) {
+        unsigned* col = (unsigned*) columnCache[i];
+        byte c1 = (i * 8) % 256;
+        byte c2 = (c1 + 1) % 256;
+        byte c3 = (c1 + 2) % 256;
+        byte c4 = (c1 + 1) % 256;
+        unsigned packedColour = c1 | (c2 << 8) | (c3 << 16) | (c4 << 24);
+        for (int j = 0; j < CACHECOLSIZE / 4; j++) {
+            col[j] = packedColour;
+        }
+    }
+}
+
+
+extern "C" byte* IPU_R_RequestColumn(int texture, int column) {
+    return columnCache[texture % NUMCACHECOLS];
+}
\ No newline at end of file
diff --git a/src/ipu/ipu_texturetiles.h b/src/ipu/ipu_texturetiles.h
new file mode 100644
index 0000000..e88dc94
--- /dev/null
+++ b/src/ipu/ipu_texturetiles.h
@@ -0,0 +1,25 @@
+
+#ifndef __IPU_TEXTURETILES__
+#define __IPU_TEXTURETILES__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#include "doomtype.h"
+#include "ipu_utils.h"
+
+
+
+void IPU_R_InitColumnRequester(void);
+
+byte* IPU_R_RequestColumn(int texture, int column);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __IPU_TEXTURETILES__
diff --git a/src/ipu/ipu_utils.h b/src/ipu/ipu_utils.h
new file mode 100644
index 0000000..9fd8a27
--- /dev/null
+++ b/src/ipu/ipu_utils.h
@@ -0,0 +1,9 @@
+#ifndef __IPU_UTILS__
+#define __IPU_UTILS__
+
+// #define __SUPER__ __attribute__((target("supervisor")))
+
+extern int tileID;
+
+
+#endif // __IPU_UTILS__
\ No newline at end of file
diff --git a/src/ipu/ipu_vertices.cpp b/src/ipu/ipu_vertices.cpp
index 13a8268..e141647 100644
--- a/src/ipu/ipu_vertices.cpp
+++ b/src/ipu/ipu_vertices.cpp
@@ -3,9 +3,11 @@
 #include <cassert>
 
 #include "doomtype.h"
-#include "r_main.h"
 #include "i_video.h"
 
+#include "ipu_utils.h"
+#include "ipu_texturetiles.h"
+
 
 typedef uint8_t pixel_t;
 
@@ -58,6 +60,9 @@ struct IPU_Init_Vertex : public poplar::SupervisorVertex {
     logical += 2 * row;
     tileID = logical;
 
+    
+    // IPU_R_InitColumnRequester(physical);
+
   }
 };
 
diff --git a/src/ipu/r_codelets.cpp b/src/ipu/r_codelets.cpp
index f8b3541..f964936 100644
--- a/src/ipu/r_codelets.cpp
+++ b/src/ipu/r_codelets.cpp
@@ -7,6 +7,8 @@
 #include "i_video.h"
 
 #include "ipu_transfer.h"
+#include "ipu_utils.h"
+#include "ipu_texturetiles.h"
 
 
 extern "C" {
@@ -31,7 +33,7 @@ struct R_Init_Vertex: public poplar::Vertex {
     
     break; case 1:
       R_InitTextures((int*)&lumpBuf[0], (R_Init_MiscValues_t*)&miscValues[0]);
-    
+      IPU_R_InitColumnRequester();
 
       *lumpNum = 0;
       step = 0;
diff --git a/src/ipu/r_data.c b/src/ipu/r_data.c
index 38b9426..984ea02 100644
--- a/src/ipu/r_data.c
+++ b/src/ipu/r_data.c
@@ -41,6 +41,7 @@
 */
 
 #include <print.h>
+#include "ipu_utils.h"
 #include "ipu_transfer.h"
 #include "ipu_malloc.h"
 
@@ -372,7 +373,6 @@ byte *R_GetColumn(int tex, int col) {
   return texturecomposite[tex] + ofs;
 }
 */
-
 static void GenerateTextureHashTable(void) {
   IPUpatchlesstexture_t **rover;
   int i;
@@ -587,10 +587,12 @@ void R_InitTextures(int* maptex, R_Init_MiscValues_t* miscVals) {
   //   R_GenerateLookup(i);
 
   // Create translation table for global animation.
-  // texturetranslation =   // JOSEF
-      // Z_Malloc((numtextures + 1) * sizeof(*texturetranslation), PU_STATIC, 0);
-  // for (i = 0; i < numtextures; i++)
-  //   texturetranslation[i] = i;
+  texturetranslation = IPU_static_malloc(
+    (numtextures + 1) * sizeof(*texturetranslation), 
+    "texturetranslation"
+  );
+  for (i = 0; i < numtextures; i++)
+    texturetranslation[i] = i;
 
   GenerateTextureHashTable();
 }
diff --git a/src/ipu/r_draw.c b/src/ipu/r_draw.c
index a62c401..9cd9bd8 100644
--- a/src/ipu/r_draw.c
+++ b/src/ipu/r_draw.c
@@ -113,10 +113,6 @@ void R_DrawColumn(void) {
   fixed_t frac;
   fixed_t fracstep;
 
-  // JOSEF: Each tile only renders a portion of the frame
-  if ((dc_x < tileLeftClip) || (dc_x >= tileRightClip)) 
-    return;
-
   count = dc_yh - dc_yl;
 
   // Zero length, column does not exceed a pixel.
@@ -124,7 +120,6 @@ void R_DrawColumn(void) {
     return;
 
   if ((unsigned)dc_x >= SCREENWIDTH || dc_yl < 0 || dc_yh >= SCREENHEIGHT) {
-    // I_Error("R_DrawColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
     printf("ERROR: R_DrawColumn: %u to %u at %u\n", dc_yl, dc_yh, dc_x);
   }
   char colour = (bspnum - (lightnum & 1)) % 256; // JOSEF: TMP!
@@ -136,8 +131,8 @@ void R_DrawColumn(void) {
 
   // Determine scaling,
   //  which is the only mapping to be done.
-  // fracstep = dc_iscale;                                // LATER
-  // frac = dc_texturemid + (dc_yl - centery) * fracstep; // LATER
+  fracstep = dc_iscale;
+  frac = dc_texturemid + (dc_yl - centery) * fracstep;
 
   // Inner loop that does the actual texture mapping,
   //  e.g. a DDA-lile scaling.
@@ -145,10 +140,13 @@ void R_DrawColumn(void) {
   do {
     // Re-map color indices from wall texture column
     //  using a lighting/special effects LUT.
-    *dest = colour; // LATER: dc_colormap[dc_source[(frac >> FRACBITS) & 127]]; // LATER
+    
+    // LATER: *dest = dc_colormap[dc_source[(frac >> FRACBITS) & 127]]; // LATER
+    // *dest = colour;
+    *dest = dc_source[(frac >> FRACBITS) & 127];
 
     dest += IPUCOLSPERRENDERTILE; // JOSEF: SCREENWIDTH;
-    // frac += fracstep; // LATER
+    frac += fracstep;
 
   } while (count--);
 }
diff --git a/src/ipu/r_main.c b/src/ipu/r_main.c
index 3a28a36..334c6ea 100644
--- a/src/ipu/r_main.c
+++ b/src/ipu/r_main.c
@@ -254,9 +254,7 @@ int R_PointOnSegSide(fixed_t x, fixed_t y, seg_t *line) {
 //  the y (<=x) is scaled and divided by x to get a
 //  tangent (slope) value which is looked up in the
 //  tantoangle[] table.
-
 //
-
 angle_t R_PointToAngle(fixed_t x, fixed_t y) {
   x -= viewx;
   y -= viewy;
@@ -676,6 +674,7 @@ void R_ExecuteSetViewSize(void) {
   */
 }
 
+/*
 //
 // R_Init
 //
@@ -683,27 +682,24 @@ void R_ExecuteSetViewSize(void) {
 void R_Init(void) {
   R_InitData();
 
-  /* LATER
-  // printf(".");
+  printf(".");
   R_InitPointToAngle();
-  // printf(".");
+  printf(".");
   R_InitTables();
   // viewwidth / viewheight / detailLevel are set by the defaults
-  // printf(".");
+  printf(".");
 
   R_SetViewSize(screenblocks, detailLevel);
   R_InitPlanes();
-  // printf(".");
+  printf(".");
   R_InitLightTables();
-  // printf(".");
+  printf(".");
   R_InitSkyMap();
   R_InitTranslationTables();
-  // printf(".");
-  */
+  printf(".");
 
   framecount = 0;
 }
-/*
 
 //
 // R_PointInSubsector
@@ -746,7 +742,7 @@ void R_SetupFrame(player_t *player) {
   viewsin = IPU_finesine(viewangle >> ANGLETOFINESHIFT);
   viewcos = finecosine[viewangle >> ANGLETOFINESHIFT];
 
-  // JOSEF TMP tests!
+  // JOSEF TMP, some tests to about replacing sin LUTs!
   // angle_t sin_input = viewangle >> ANGLETOFINESHIFT;
   // float sin_inscaled = (sin_input + 0.5f) * 3.14159265359f * 2 / FINEANGLES;
   // float sin_sin = sinf(sin_inscaled);
diff --git a/src/ipu/r_main.h b/src/ipu/r_main.h
index efd868c..53c6824 100644
--- a/src/ipu/r_main.h
+++ b/src/ipu/r_main.h
@@ -82,7 +82,7 @@ extern int detailshift;
 // Used to select shadow mode etc.
 //
 
-// extern void (*colfunc)(void); 
+// extern void (*colfunc)(void); // JOSEF
 void colfunc(void); // Don't want to call via pointer on IPU
 extern void (*transcolfunc)(void);
 extern void (*basecolfunc)(void);
@@ -92,7 +92,6 @@ extern void (*spanfunc)(void);
 
 
 // JOSEF
-extern int tileID;
 extern int tileLeftClip;
 extern int tileRightClip;
 
diff --git a/src/ipu/r_segs.c b/src/ipu/r_segs.c
index f434895..faa5a8f 100644
--- a/src/ipu/r_segs.c
+++ b/src/ipu/r_segs.c
@@ -38,6 +38,7 @@
 #include "v_patch.h"
 
 #include <print.h>
+#include "ipu_texturetiles.h"
 
 
 // OPTIMIZE: closed two sided lines as single sided
@@ -196,7 +197,7 @@ void R_RenderSegLoop(void) {
   int yl;
   int yh;
   int mid;
-  // fixed_t texturecolumn; // LATER
+  fixed_t texturecolumn;
   int top;
   int bottom;
 
@@ -240,9 +241,9 @@ void R_RenderSegLoop(void) {
     // texturecolumn and lighting are independent of wall tiers
     if (segtextured) {
       // calculate texture offset
-      // angle = (rw_centerangle + xtoviewangle[rw_x]) >> ANGLETOFINESHIFT;
-      // texturecolumn = rw_offset - FixedMul(finetangent[angle], rw_distance); // LATER
-      // texturecolumn >>= FRACBITS;              // LATER
+      angle = (rw_centerangle + xtoviewangle[rw_x]) >> ANGLETOFINESHIFT;
+      texturecolumn = rw_offset - FixedMul(finetangent[angle], rw_distance);
+      texturecolumn >>= FRACBITS;
       // calculate lighting
       index = rw_scale >> LIGHTSCALESHIFT;
 
@@ -254,8 +255,7 @@ void R_RenderSegLoop(void) {
       dc_iscale = 0xffffffffu / (unsigned)rw_scale;
     } else {
       // purely to shut up the compiler
-
-      // texturecolumn = 0; // LATER
+      texturecolumn = 0;
     }
 
     // draw the wall tiers
@@ -263,8 +263,9 @@ void R_RenderSegLoop(void) {
       // single sided line
       dc_yl = yl;
       dc_yh = yh;
-      // dc_texturemid = rw_midtexturemid; // LATER
-      // dc_source = R_GetColumn(midtexture, texturecolumn); // LATER
+      dc_texturemid = rw_midtexturemid;
+      // dc_source = R_GetColumn(midtexture, texturecolumn); // JOSEF
+      dc_source = IPU_R_RequestColumn(midtexture, texturecolumn); 
       colfunc();
       ceilingclip[rw_x] = viewheight;
       floorclip[rw_x] = -1;
@@ -281,8 +282,9 @@ void R_RenderSegLoop(void) {
         if (mid >= yl) {
           dc_yl = yl;
           dc_yh = mid;
-          // dc_texturemid = rw_toptexturemid; // LATER
-          // dc_source = R_GetColumn(toptexture, texturecolumn); // LATER
+          dc_texturemid = rw_toptexturemid;
+          // dc_source = R_GetColumn(toptexture, texturecolumn); // JOSEF
+          dc_source = IPU_R_RequestColumn(toptexture, texturecolumn); 
           
           colfunc();
           ceilingclip[rw_x] = mid;
@@ -306,8 +308,9 @@ void R_RenderSegLoop(void) {
         if (mid <= yh) {
           dc_yl = mid;
           dc_yh = yh;
-          // dc_texturemid = rw_bottomtexturemid;       // LATER
-          // dc_source = R_GetColumn(bottomtexture, texturecolumn); // LATER
+          dc_texturemid = rw_bottomtexturemid;
+          // dc_source = R_GetColumn(bottomtexture, texturecolumn); // JOSEF
+          dc_source = IPU_R_RequestColumn(bottomtexture, texturecolumn); 
           colfunc();
           floorclip[rw_x] = mid;
         } else
@@ -397,20 +400,19 @@ void R_StoreWallRange(int start, int stop) {
 
   if (!backsector) {
     // single sided line
-    midtexture = sidedef->midtexture; //LATER: texturetranslation[sidedef->midtexture];
+    midtexture = texturetranslation[sidedef->midtexture];
     // a single sided line is terminal, so it must mark ends
     markfloor = markceiling = true;
 
-    //  ---- JOSEF: LATER ---- 
-    // if (linedef->flags & ML_DONTPEGBOTTOM) {
-    //   vtop = frontsector->floorheight + textureheight[sidedef->midtexture];
-    //   // bottom of texture at bottom
-    //   rw_midtexturemid = vtop - viewz;
-    // } else {
-    //   // top of texture at top
-    //   rw_midtexturemid = worldtop;
-    // }
-    // rw_midtexturemid += sidedef->rowoffset;
+    if (linedef->flags & ML_DONTPEGBOTTOM) {
+      vtop = frontsector->floorheight + textureheight[sidedef->midtexture];
+      // bottom of texture at bottom
+      rw_midtexturemid = vtop - viewz;
+    } else {
+      // top of texture at top
+      rw_midtexturemid = worldtop;
+    }
+    rw_midtexturemid += sidedef->rowoffset;
     
 
     ds_p->silhouette = SIL_BOTH;
@@ -488,20 +490,20 @@ void R_StoreWallRange(int start, int stop) {
 
     if (worldhigh < worldtop) {
       // top texture
-      toptexture = sidedef->toptexture; // LATER: texturetranslation[sidedef->toptexture];
-      // if (linedef->flags & ML_DONTPEGTOP) {
-      //   // top of texture at top
-      //   rw_toptexturemid = worldtop;
-      // } else {
-      //   vtop = backsector->ceilingheight + textureheight[sidedef->toptexture];
+      toptexture = texturetranslation[sidedef->toptexture];
+      if (linedef->flags & ML_DONTPEGTOP) {
+        // top of texture at top
+        rw_toptexturemid = worldtop;
+      } else {
+        vtop = backsector->ceilingheight + textureheight[sidedef->toptexture];
 
-      //   // bottom of texture
-      //   rw_toptexturemid = vtop - viewz;
-      // }
+        // bottom of texture
+        rw_toptexturemid = vtop - viewz;
+      }
     }
     if (worldlow > worldbottom) {
       // bottom texture
-      bottomtexture = sidedef->bottomtexture; // LATER: texturetranslation[sidedef->bottomtexture];
+      bottomtexture = texturetranslation[sidedef->bottomtexture];
 
       if (linedef->flags & ML_DONTPEGBOTTOM) { 
         // bottom of texture at bottom
diff --git a/src/ipu/tables.c b/src/ipu/tables.c
index fe5da17..8803442 100644
--- a/src/ipu/tables.c
+++ b/src/ipu/tables.c
@@ -578,7 +578,7 @@ const fixed_t finetangent[4096] =
     11392683,13145455,15535599,18988036,24413316,34178904,56965752,170910304
 };
 
-// 40K lookup table is a bit dear for IPU, could calc live instead
+// 40K lookup table is a bit dear for IPU, eventually calculate live instead
 fixed_t IPU_finesine(int i) {
     return finesine[i];
 
diff --git a/src/ipu/w_wad.c b/src/ipu/w_wad.c
index edf6146..ed90cb6 100644
--- a/src/ipu/w_wad.c
+++ b/src/ipu/w_wad.c
@@ -17,7 +17,7 @@
 //
 
 
-
+#include "ipu_utils.h"
 /*
 #include <ctype.h
 >