diff --git a/src/m_misc.c b/src/m_misc.c
index da5fb4c1d..40d8e4d67 100644
--- a/src/m_misc.c
+++ b/src/m_misc.c
@@ -2217,7 +2217,6 @@ char *sizeu5(size_t num)
 	return sizeu5_buf;
 }
 
-// 32-bit memset
 void M_Memset32(void *dest, UINT64 value, uintptr_t size)
 {
 	uintptr_t i;
diff --git a/src/r_draw.c b/src/r_draw.c
index 9091a09f2..d72c299c9 100644
--- a/src/r_draw.c
+++ b/src/r_draw.c
@@ -73,7 +73,9 @@ boolean tc_spritecolormaps;
 */
 UINT32 *topleft_u32;
 
+UINT32 dp_color;
 UINT8 dp_lighting;
+
 extracolormap_t *dp_extracolormap;
 extracolormap_t *defaultextracolormap;
 
@@ -104,7 +106,6 @@ UINT8 *blendtables[NUMBLENDMAPS];
 
 /**	\brief R_DrawTranslucentColumn uses this
 */
-UINT8 *dc_transmap; // one of the translucency tables
 UINT8 dc_alpha; // column alpha
 
 static INT32 multtable[0x10000];
@@ -112,7 +113,8 @@ static INT32 multtableinv[0x10000];
 
 static INT32 *dp_multtable = NULL;
 static INT32 *dp_multtableinv = NULL;
-static UINT8 *dp_transmap = NULL;
+
+UINT8 *dp_transmap; // one of the translucency tables
 
 UINT32 (*R_BlendModeMix)(UINT32, UINT32, UINT8) = NULL;
 UINT8 (*R_AlphaBlend)(UINT8, UINT8, UINT8 *) = NULL;
@@ -145,7 +147,6 @@ UINT8 ds_picfmt = PICFMT_FLAT;
 UINT8 ds_colmapstyle = TC_COLORMAPSTYLE_8BPP;
 
 UINT8 *ds_source; // points to the start of a flat
-UINT8 *ds_transmap; // one of the translucency tables
 UINT8 ds_alpha; // span alpha
 
 // Vectors for Software's tilted slope drawers
@@ -1156,7 +1157,6 @@ void R_SetColumnBlendingFunction(INT32 blendmode)
 
 	dp_multtable = &multtable[dc_alpha << 8];
 	dp_multtableinv = &multtableinv[dc_alpha << 8];
-	dp_transmap = dc_transmap;
 }
 
 void R_SetSpanBlendingFunction(INT32 blendmode)
@@ -1170,7 +1170,6 @@ void R_SetSpanBlendingFunction(INT32 blendmode)
 
 	dp_multtable = &multtable[ds_alpha << 8];
 	dp_multtableinv = &multtableinv[ds_alpha << 8];
-	dp_transmap = ds_transmap;
 }
 
 void R_InitAlphaLUT(void)
@@ -1431,14 +1430,14 @@ static inline void R_SetBlendingFunction_ColorMix(INT32 blendmode)
 
 #undef clamp
 
-#define WriteTranslucentColumn_s8d32(idx) *dest = R_BlendModeMix(GetTrueColor(idx), *(UINT32 *)dest, dc_alpha)
-#define WriteTranslucentColumn_s32d32(idx) *dest = R_BlendModeMix(idx, *(UINT32 *)dest, dc_alpha)
+#define WriteTranslucentColumn_s8d32(val) *dest = R_BlendModeMix(GetTrueColor(val), *dest, dc_alpha)
+#define WriteTranslucentColumn_s32d32(val) *dest = R_BlendModeMix(val, *dest, dc_alpha)
 
-#define WriteTranslucentSpan_s8d32(idx) *dest = R_BlendModeMix(GetTrueColor(idx), *(UINT32 *)dest, ds_alpha)
-#define WriteTranslucentSpan_s32d32(idx) *dest = R_BlendModeMix(idx, *(UINT32 *)dest, ds_alpha)
+#define WriteTranslucentSpan_s8d32(val) *dest = R_BlendModeMix(GetTrueColor(val), *dest, ds_alpha)
+#define WriteTranslucentSpan_s32d32(val) *dest = R_BlendModeMix(val, *dest, ds_alpha)
 
-#define WriteTranslucentWaterSpan_s8d32(idx) *dest = R_BlendModeMix(GetTrueColor(idx), *(UINT32 *)dsrc, ds_alpha); dsrc++
-#define WriteTranslucentWaterSpan_s32d32(idx) *dest = R_BlendModeMix(idx, *(UINT32 *)dsrc, ds_alpha); dsrc++
+#define WriteTranslucentWaterSpan_s8d32(val) *dest = R_BlendModeMix(GetTrueColor(val), *dsrc, ds_alpha); dsrc++
+#define WriteTranslucentWaterSpan_s32d32(val) *dest = R_BlendModeMix(val, *dsrc, ds_alpha); dsrc++
 
 #include "r_draw32.c"
 #include "r_draw32_npo2.c"
diff --git a/src/r_draw.h b/src/r_draw.h
index 5d83783a2..15594071b 100644
--- a/src/r_draw.h
+++ b/src/r_draw.h
@@ -33,7 +33,10 @@ extern boolean tc_spritecolormaps;
 
 extern UINT32 *topleft_u32;
 
+extern UINT32 dp_color;
 extern UINT8 dp_lighting;
+extern UINT8 *dp_transmap;
+
 extern extracolormap_t *dp_extracolormap;
 extern extracolormap_t *defaultextracolormap;
 
@@ -51,7 +54,6 @@ extern UINT8 dc_colmapstyle;
 extern UINT8 *dc_source; // first pixel in a column
 
 // translucency stuff here
-extern UINT8 *dc_transmap;
 extern UINT8 dc_alpha;
 
 // translation stuff here
@@ -78,7 +80,6 @@ extern UINT16 ds_flatwidth, ds_flatheight;
 extern boolean ds_powersoftwo, ds_solidcolor;
 
 extern UINT8 *ds_source;
-extern UINT8 *ds_transmap;
 extern UINT8 ds_alpha;
 extern UINT8 ds_picfmt;
 extern UINT8 ds_colmapstyle;
diff --git a/src/r_draw32.c b/src/r_draw32.c
index d4f031bc3..cb31440f7 100644
--- a/src/r_draw32.c
+++ b/src/r_draw32.c
@@ -604,41 +604,7 @@ void R_Draw2sMultiPatchTranslucentColumn_32(void)
 */
 void R_DrawShadeColumn_32(void)
 {
-#if 0
-	register INT32 count;
-	register UINT32 *dest;
-	register fixed_t frac, fracstep;
-
-	// check out coords for src*
-	if ((dc_yl < 0) || (dc_x >= vid.width))
-		return;
-
-	count = dc_yh - dc_yl;
-	if (count < 0)
-		return;
-
-#ifdef RANGECHECK
-	if ((unsigned)dc_x >= (unsigned)vid.width || dc_yl < 0 || dc_yh >= vid.height)
-		I_Error("R_DrawShadeColumn_32: %d to %d at %d", dc_yl, dc_yh, dc_x);
-#endif
-
-	// FIXME. As above.
-	//dest = ylookup[dc_yl] + columnofs[dc_x];
-	dest = &topleft_u32[dc_yl*vid.width + dc_x];
-
-	// Looks familiar.
-	fracstep = dc_iscale;
-	//frac = dc_texturemid + (dc_yl - centery)*fracstep;
-	frac = (dc_texturemid + FixedMul((dc_yl << FRACBITS) - centeryfrac, fracstep))*(!dc_hires);
-
-	// Here we do an additional index re-mapping.
-	do
-	{
-		*dest = colormaps[(dc_source[frac>>FRACBITS] <<8) + (*dest)];
-		dest += vid.width;
-		frac += fracstep;
-	} while (count--);
-#endif
+	// TODO
 }
 
 /**	\brief The R_DrawTranslucentColumn_32 function
@@ -1085,9 +1051,6 @@ void R_DrawSpan_32(void)
 	else if (ds_colmapstyle == TC_COLORMAPSTYLE_32BPP)
 		colormapu32 = (UINT32 *)ds_colormap;
 
-	if (dest+8 > deststop)
-		return;
-
 	if (ds_picfmt == PICFMT_FLAT)
 	{
 		if (ds_colmapstyle == TC_COLORMAPSTYLE_8BPP)
@@ -3151,9 +3114,222 @@ void R_DrawFogSpan_32(void)
 	}
 }
 
+/**	\brief The R_DrawTiltedFogSpan_32 function
+	Draws a tilted span with fogging.
+*/
 void R_DrawTiltedFogSpan_32(void)
 {
-	// TODO
+	int width = ds_x2 - ds_x1;
+
+	UINT32 *dest = (UINT32 *)(ylookup[ds_y] + columnofs[ds_x1]);
+
+	double iz = ds_szp->z + ds_szp->y*(centery-ds_y) + ds_szp->x*(ds_x1-centerx);
+
+	CALC_SLOPE_LIGHT
+
+	if (ds_colmapstyle == TC_COLORMAPSTYLE_8BPP)
+	{
+		do
+		{
+			UINT8 *colormap = planezlight[tiltlighting[ds_x1++]] + (ds_colormap - colormaps);
+			*dest = GetTrueColor(colormap[*dest]);
+			dest++;
+		} while (--width >= 0);
+	}
+	else if (ds_colmapstyle == TC_COLORMAPSTYLE_32BPP)
+	{
+		RGBA_t pack;
+		do
+		{
+			// TODO
+			pack.rgba = *dest;
+			*dest = (0xFF000000 | TC_TintTrueColor(pack, (0xFF000000 | (UINT32)dp_extracolormap->rgba), R_GetRgbaA(dp_extracolormap->rgba) * 10));
+			dest++;
+		} while (--width >= 0);
+	}
+}
+
+/**	\brief The R_DrawSolidColorSpan_32 function
+	Draws a solid color span.
+*/
+void R_DrawSolidColorSpan_32(void)
+{
+	size_t count = (ds_x2 - ds_x1 + 1);
+
+	UINT32 *dest = (UINT32 *)(ylookup[ds_y] + columnofs[ds_x1]);
+
+	M_Memset32(dest, dp_color, count);
+}
+
+/**	\brief The R_DrawTransSolidColorSpan_32 function
+	Draws a translucent solid color span.
+*/
+void R_DrawTranslucentSolidColorSpan_32(void)
+{
+	size_t count = (ds_x2 - ds_x1 + 1);
+
+	UINT32 source = dp_color;
+	UINT32 *dest = (UINT32 *)(ylookup[ds_y] + columnofs[ds_x1]);
+
+	const UINT32 *deststop = (UINT32 *)screens[0] + vid.width * vid.height;
+
+	while (count-- && dest <= deststop)
+	{
+		*dest = R_BlendModeMix(source, *dest, ds_alpha);
+		dest++;
+	}
+}
+
+/**	\brief The R_DrawTiltedSolidColorSpan_32 function
+	Draws a tilted solid color span.
+*/
+void R_DrawTiltedSolidColorSpan_32(void)
+{
+	int width = ds_x2 - ds_x1;
+
+	UINT32 source = dp_color;
+	UINT32 *dest = (UINT32 *)(ylookup[ds_y] + columnofs[ds_x1]);
+
+	double iz = ds_szp->z + ds_szp->y*(centery-ds_y) + ds_szp->x*(ds_x1-centerx);
+
+	CALC_SLOPE_LIGHT
+
+	if (ds_picfmt == PICFMT_FLAT)
+	{
+		if (ds_colmapstyle == TC_COLORMAPSTYLE_8BPP)
+		{
+			do
+			{
+				UINT8 *colormap = planezlight[tiltlighting[ds_x1++]] + (ds_colormap - colormaps);
+				*dest++ = GetTrueColor(colormap[source]);
+			} while (--width >= 0);
+		}
+		else if (ds_colmapstyle == TC_COLORMAPSTYLE_32BPP)
+		{
+			do
+			{
+				UINT32 *colormap = planezlight_u32[tiltlighting[ds_x1++]] + ((UINT32*)ds_colormap - colormaps_u32);
+				*dest++ = TC_Colormap32Mix(colormap[source]);
+			} while (--width >= 0);
+		}
+	}
+	else if (ds_picfmt == PICFMT_FLAT32)
+	{
+		do
+		{
+			dp_lighting = TC_CalcScaleLight(planezlight_u32[tiltlighting[ds_x1++]]);
+			*dest = TC_ColorMix(source, *dest);
+			dest++;
+		} while (--width >= 0);
+	}
+}
+
+/**	\brief The R_DrawTiltedTransSolidColorSpan_32 function
+	Draws a tilted and translucent solid color span.
+*/
+void R_DrawTiltedTranslucentSolidColorSpan_32(void)
+{
+	int width = ds_x2 - ds_x1;
+
+	UINT32 source = dp_color;
+	UINT32 *dest = (UINT32 *)(ylookup[ds_y] + columnofs[ds_x1]);
+
+	double iz = ds_szp->z + ds_szp->y*(centery-ds_y) + ds_szp->x*(ds_x1-centerx);
+
+	CALC_SLOPE_LIGHT
+
+	if (ds_picfmt == PICFMT_FLAT)
+	{
+		if (ds_colmapstyle == TC_COLORMAPSTYLE_8BPP)
+		{
+			do
+			{
+				UINT8 *colormap = planezlight[tiltlighting[ds_x1++]] + (ds_colormap - colormaps);
+				WriteTranslucentSpan_s8d32(colormap[source]);
+				dest++;
+			} while (--width >= 0);
+		}
+		else if (ds_colmapstyle == TC_COLORMAPSTYLE_32BPP)
+		{
+			do
+			{
+				UINT32 *colormap = planezlight_u32[tiltlighting[ds_x1++]] + ((UINT32*)ds_colormap - colormaps_u32);
+				WriteTranslucentSpan_s32d32(colormap[source]);
+				dest++;
+			} while (--width >= 0);
+		}
+	}
+	else if (ds_picfmt == PICFMT_FLAT32)
+	{
+		do
+		{
+			dp_lighting = TC_CalcScaleLight(planezlight_u32[tiltlighting[ds_x1++]]);
+			*dest = R_BlendModeMix(source, *dest, ds_alpha);
+			dest++;
+		} while (--width >= 0);
+	}
+}
+
+/**	\brief The R_DrawWaterSolidColorSpan_32 function
+	Draws a water solid color span.
+*/
+void R_DrawWaterSolidColorSpan_32(void)
+{
+	UINT32 source = dp_color;
+	UINT32 *dest = (UINT32 *)(ylookup[ds_y] + columnofs[ds_x1]);
+	UINT32 *dsrc = ((UINT32 *)screens[1]) + (ds_y+ds_bgofs)*vid.width + ds_x1;
+
+	size_t count = (ds_x2 - ds_x1 + 1);
+	const UINT32 *deststop = (UINT32 *)screens[0] + vid.width * vid.height;
+
+	while (count-- && dest <= deststop)
+		*dest++ = R_BlendModeMix(source, *dsrc++, ds_alpha);
+}
+
+/**	\brief The R_DrawTiltedWaterSolidColorSpan_32 function
+	Draws a tilted water solid color span.
+*/
+void R_DrawTiltedWaterSolidColorSpan_32(void)
+{
+	int width = ds_x2 - ds_x1;
+
+	UINT32 source = dp_color;
+	UINT32 *dest = (UINT32 *)(ylookup[ds_y] + columnofs[ds_x1]);
+	UINT32 *dsrc = ((UINT32 *)screens[1]) + (ds_y+ds_bgofs)*vid.width + ds_x1;
+
+	double iz = ds_szp->z + ds_szp->y*(centery-ds_y) + ds_szp->x*(ds_x1-centerx);
+
+	CALC_SLOPE_LIGHT
+
+	if (ds_picfmt == PICFMT_FLAT)
+	{
+		if (ds_colmapstyle == TC_COLORMAPSTYLE_8BPP)
+		{
+			do
+			{
+				UINT8 *colormap = planezlight[tiltlighting[ds_x1++]] + (ds_colormap - colormaps);
+				WriteTranslucentWaterSpan_s8d32(colormap[source]);
+				dest++;
+			} while (--width >= 0);
+		}
+		else if (ds_colmapstyle == TC_COLORMAPSTYLE_32BPP)
+		{
+			do
+			{
+				UINT32 *colormap = planezlight_u32[tiltlighting[ds_x1++]] + ((UINT32*)ds_colormap - colormaps_u32);
+				WriteTranslucentWaterSpan_s32d32(colormap[source]);
+				dest++;
+			} while (--width >= 0);
+		}
+	}
+	else if (ds_picfmt == PICFMT_FLAT32)
+	{
+		do
+		{
+			dp_lighting = TC_CalcScaleLight(planezlight_u32[tiltlighting[ds_x1++]]);
+			*dest++ = R_BlendModeMix(source, *dsrc++, ds_alpha);
+		} while (--width >= 0);
+	}
 }
 
 /**	\brief The R_DrawFogColumn_32 function
@@ -3268,33 +3444,3 @@ void R_DrawShadowedColumn_32(void)
 	if (dc_yl <= realyh)
 		(colfuncs[BASEDRAWFUNC])();		// R_DrawColumn_32 for the appropriate architecture
 }
-
-void R_DrawSolidColorSpan_32(void)
-{
-	// TODO
-}
-
-void R_DrawTiltedSolidColorSpan_32(void)
-{
-	// TODO
-}
-
-void R_DrawTranslucentSolidColorSpan_32(void)
-{
-	// TODO
-}
-
-void R_DrawWaterSolidColorSpan_32(void)
-{
-	// TODO
-}
-
-void R_DrawTiltedTranslucentSolidColorSpan_32(void)
-{
-	// TODO
-}
-
-void R_DrawTiltedWaterSolidColorSpan_32(void)
-{
-	// TODO
-}
diff --git a/src/r_draw8.c b/src/r_draw8.c
index 0384f36ec..d7e3883d1 100644
--- a/src/r_draw8.c
+++ b/src/r_draw8.c
@@ -1596,8 +1596,7 @@ void R_DrawTranslucentSolidColorSpan_8(void)
 
 	while (count-- && dest <= deststop)
 	{
-		// TODO
-		// *dest = *(ds_transmap + (source << 8) + *dest);
+		*dest = R_AlphaBlend(source, dc_alpha, dest);
 		dest++;
 	}
 }
@@ -1640,8 +1639,7 @@ void R_DrawTiltedTranslucentSolidColorSpan_8(void)
 	do
 	{
 		UINT8 *colormap = planezlight[tiltlighting[ds_x1++]] + (ds_colormap - colormaps);
-		// *dest = *(ds_transmap + (colormap[source] << 8) + *dest);
-		// TODO
+		*dest = R_AlphaBlend(colormap[source], dc_alpha, dest);
 		dest++;
 	} while (--width >= 0);
 }
@@ -1660,10 +1658,7 @@ void R_DrawWaterSolidColorSpan_8(void)
 	const UINT8 *deststop = screens[0] + vid.rowbytes * vid.height;
 
 	while (count-- && dest <= deststop)
-	{
-		*dest = colormap[*(ds_transmap + (source << 8) + *dsrc++)];
-		dest++;
-	}
+		*dest++ = colormap[R_AlphaBlend(source, dc_alpha, dsrc++)];
 }
 
 /**	\brief The R_DrawTiltedWaterSolidColorSpan_8 function
@@ -1684,8 +1679,7 @@ void R_DrawTiltedWaterSolidColorSpan_8(void)
 	do
 	{
 		UINT8 *colormap = planezlight[tiltlighting[ds_x1++]] + (ds_colormap - colormaps);
-		// *dest++ = *(ds_transmap + (colormap[source] << 8) + *dsrc++);
-		// TODO
+		*dest++ = R_AlphaBlend(colormap[source], dc_alpha, dsrc++);
 	} while (--width >= 0);
 }
 
diff --git a/src/r_draw8_npo2.c b/src/r_draw8_npo2.c
index 93d755efe..6ada3edcb 100644
--- a/src/r_draw8_npo2.c
+++ b/src/r_draw8_npo2.c
@@ -343,8 +343,7 @@ void R_DrawTiltedTranslucentSpan_NPO2_8(void)
 				else
 					y -= libdivide_u32_do((UINT32)y, &y_divider) * ds_flatheight;
 
-				// *dest = *(ds_transmap + (colormap[source[((y * ds_flatwidth) + x)]] << 8) + *dest);
-				// TODO
+				*dest = R_AlphaBlend(colormap[source[((y * ds_flatwidth) + x)]], ds_alpha, dest);
 			}
 			dest++;
 			u += stepu;
@@ -376,8 +375,7 @@ void R_DrawTiltedTranslucentSpan_NPO2_8(void)
 				else
 					y -= libdivide_u32_do((UINT32)y, &y_divider) * ds_flatheight;
 
-				// *dest = *(ds_transmap + (colormap[source[((y * ds_flatwidth) + x)]] << 8) + *dest);
-				// TODO
+				*dest = R_AlphaBlend(colormap[source[((y * ds_flatwidth) + x)]], ds_alpha, dest);
 			}
 		}
 		else
@@ -414,8 +412,7 @@ void R_DrawTiltedTranslucentSpan_NPO2_8(void)
 					else
 						y -= libdivide_u32_do((UINT32)y, &y_divider) * ds_flatheight;
 
-					// *dest = *(ds_transmap + (colormap[source[((y * ds_flatwidth) + x)]] << 8) + *dest);
-					// TODO
+					*dest = R_AlphaBlend(colormap[source[((y * ds_flatwidth) + x)]], ds_alpha, dest);
 				}
 				dest++;
 				u += stepu;
@@ -711,10 +708,7 @@ void R_DrawTranslucentSplat_NPO2_8(void)
 		y = (yposition >> FRACBITS);
 		val = source[((y * ds_flatwidth) + x)];
 		if (val != TRANSPARENTPIXEL)
-		{
-			// TODO
-			// *dest = *(ds_transmap + (colormap[val] << 8) + *dest);
-		}
+			*dest = R_AlphaBlend(colormap[val], ds_alpha, dest);
 		dest++;
 		xposition += xstep;
 		yposition += ystep;
@@ -854,10 +848,7 @@ void R_DrawTranslucentFloorSprite_NPO2_8(void)
 		y = (yposition >> FRACBITS);
 		val = source[((y * ds_flatwidth) + x)];
 		if (val & 0xFF00)
-		{
-			// TODO
-			// *dest = *(ds_transmap + (colormap[translation[val & 0xFF]] << 8) + *dest);
-		}
+			*dest = R_AlphaBlend(colormap[translation[val & 0xFF]], ds_alpha, dest);
 		dest++;
 		xposition += xstep;
 		yposition += ystep;
@@ -1094,10 +1085,7 @@ void R_DrawTiltedTranslucentFloorSprite_NPO2_8(void)
 
 			val = source[((y * ds_flatwidth) + x)];
 			if (val & 0xFF00)
-			{
-				// TODO
-				// *dest = *(ds_transmap + (colormap[translation[val & 0xFF]] << 8) + *dest);
-			}
+				*dest = R_AlphaBlend(colormap[translation[val & 0xFF]], ds_alpha, dest);
 			dest++;
 
 			u += stepu;
@@ -1130,10 +1118,7 @@ void R_DrawTiltedTranslucentFloorSprite_NPO2_8(void)
 
 				val = source[((y * ds_flatwidth) + x)];
 				if (val & 0xFF00)
-				{
-					// TODO
-					// *dest = *(ds_transmap + (colormap[translation[val & 0xFF]] << 8) + *dest);
-				}
+					*dest = R_AlphaBlend(colormap[translation[val & 0xFF]], ds_alpha, dest);
 			}
 		}
 		else
@@ -1170,10 +1155,7 @@ void R_DrawTiltedTranslucentFloorSprite_NPO2_8(void)
 
 				val = source[((y * ds_flatwidth) + x)];
 				if (val & 0xFF00)
-				{
-					// TODO
-					// *dest = *(ds_transmap + (colormap[translation[val & 0xFF]] << 8) + *dest);
-				}
+					*dest = R_AlphaBlend(colormap[translation[val & 0xFF]], ds_alpha, dest);
 				dest++;
 
 				u += stepu;
@@ -1243,8 +1225,7 @@ void R_DrawTranslucentSpan_NPO2_8(void)
 		x = (xposition >> FRACBITS);
 		y = (yposition >> FRACBITS);
 		val = ((y * ds_flatwidth) + x);
-		// TODO
-		// *dest = *(ds_transmap + (colormap[source[val]] << 8) + *dest);
+		*dest = R_AlphaBlend(colormap[source[val]], ds_alpha, dest);
 		dest++;
 		xposition += xstep;
 		yposition += ystep;
@@ -1308,8 +1289,7 @@ void R_DrawWaterSpan_NPO2_8(void)
 
 		x = (xposition >> FRACBITS);
 		y = (yposition >> FRACBITS);
-		// TODO
-		// *dest++ = colormap[*(ds_transmap + (source[((y * ds_flatwidth) + x)] << 8) + *dsrc++)];
+		*dest++ = colormap[R_AlphaBlend(source[((y * ds_flatwidth) + x)], ds_alpha, dsrc++)];
 		xposition += xstep;
 		yposition += ystep;
 	}
@@ -1390,8 +1370,7 @@ void R_DrawTiltedWaterSpan_NPO2_8(void)
 				else
 					y -= libdivide_u32_do((UINT32)y, &y_divider) * ds_flatheight;
 
-				// TODO
-				// *dest = *(ds_transmap + (colormap[source[((y * ds_flatwidth) + x)]] << 8) + *dsrc++);
+				*dest = R_AlphaBlend(colormap[source[((y * ds_flatwidth) + x)]], ds_alpha, dsrc++);
 			}
 			dest++;
 			u += stepu;
@@ -1423,8 +1402,7 @@ void R_DrawTiltedWaterSpan_NPO2_8(void)
 				else
 					y -= libdivide_u32_do((UINT32)y, &y_divider) * ds_flatheight;
 
-				// TODO
-				// *dest = *(ds_transmap + (colormap[source[((y * ds_flatwidth) + x)]] << 8) + *dsrc++);
+				*dest = R_AlphaBlend(colormap[source[((y * ds_flatwidth) + x)]], ds_alpha, dsrc++);
 			}
 		}
 		else
@@ -1461,8 +1439,7 @@ void R_DrawTiltedWaterSpan_NPO2_8(void)
 					else
 						y -= libdivide_u32_do((UINT32)y, &y_divider) * ds_flatheight;
 
-					// TODO
-					// *dest = *(ds_transmap + (colormap[source[((y * ds_flatwidth) + x)]] << 8) + *dsrc++);
+					*dest = R_AlphaBlend(colormap[source[((y * ds_flatwidth) + x)]], ds_alpha, dsrc++);
 				}
 				dest++;
 				u += stepu;
diff --git a/src/r_plane.c b/src/r_plane.c
index 04928472d..68e59b6c9 100644
--- a/src/r_plane.c
+++ b/src/r_plane.c
@@ -32,6 +32,7 @@
 #include "w_wad.h"
 #include "z_zone.h"
 #include "p_tick.h"
+#include "st_stuff.h"
 
 //
 // opening
@@ -249,6 +250,24 @@ static void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
 		dp_extracolormap = defaultextracolormap;
 #endif
 
+#ifdef TRUECOLOR
+	if (ds_solidcolor && truecolor)
+	{
+		if (ds_picfmt == PICFMT_FLAT32)
+			dp_color = ds_source[0];
+		else
+		{
+			if (tc_colormaps)
+			{
+				UINT32 *colormapu32 = (lighttable_u32_t *)ds_colormap;
+				dp_color = GetTrueColor(colormapu32[ds_source[0]]);
+			}
+			else
+				dp_color = GetTrueColor(ds_colormap[ds_source[0]]);
+		}
+	}
+#endif
+
 	ds_y = y;
 	ds_x1 = x1;
 	ds_x2 = x2;
@@ -312,6 +331,11 @@ static void R_MapTiltedPlane(INT32 y, INT32 x1, INT32 x2)
 		dp_extracolormap = defaultextracolormap;
 #endif
 
+#ifdef TRUECOLOR
+	if (ds_solidcolor && truecolor)
+		dp_color = ds_source[0];
+#endif
+
 	ds_y = y;
 	ds_x1 = x1;
 	ds_x2 = x2;
@@ -941,17 +965,28 @@ void R_DrawSinglePlane(visplane_t *pl)
 			return; // Don't even draw it
 		else if (pl->polyobj->translucency > 0)
 		{
+			// Remember to update this whenever polyobjects begin supporting blend modes.
 			INT32 transval = pl->polyobj->translucency;
+			boolean translucent = true;
 
 			if (!usetranstables)
 			{
 				ds_alpha = R_TransnumToAlpha(transval);
-				R_SetSpanBlendingFunction(AST_TRANSLUCENT);
+				if (ds_alpha == 0xFF)
+					translucent = false;
 			}
 			else
-				ds_transmap = R_GetTranslucencyTable(transval);
+			{
+				dp_transmap = R_GetTranslucencyTable(transval);
+				if (!dp_transmap)
+					translucent = false;
+			}
 
-			spanfunctype = (pl->polyobj->flags & POF_SPLAT) ? SPAN_SPLAT_TRANSLUCENT : SPAN_TRANSLUCENT;
+			if (translucent)
+			{
+				spanfunctype = (pl->polyobj->flags & POF_SPLAT) ? SPAN_SPLAT_TRANSLUCENT : SPAN_TRANSLUCENT;
+				R_SetSpanBlendingFunction(AST_TRANSLUCENT);
+			}
 		}
 		else if (pl->polyobj->flags & POF_SPLAT) // Opaque, but allow transparent flat pixels
 		{
@@ -991,46 +1026,51 @@ void R_DrawSinglePlane(visplane_t *pl)
 
 			if (pl->ffloor->fofflags & FOF_TRANSLUCENT)
 			{
-				INT32 alpha = pl->ffloor->alpha;
+				// 3D floor alpha is a signed 32-bit value, for some arcane reason.
+				INT32 alpha = min(max(0, pl->ffloor->alpha), 0xFF);
 				INT32 blendmode = pl->ffloor->blend ? pl->ffloor->blend : AST_TRANSLUCENT;
 				boolean splat = false;
-
-				spanfunctype = (pl->ffloor->fofflags & FOF_SPLAT) ? SPAN_SPLAT_TRANSLUCENT : SPAN_TRANSLUCENT;
+				boolean translucent = false;
 
 				if (!usetranstables)
 				{
-					if (alpha >= 255) // Opaque, but allow transparent flat pixels
+					if (alpha >= 0xFF && blendmode == AST_TRANSLUCENT) // Opaque, but allow transparent flat pixels
 					{
-						if (blendmode != AST_TRANSLUCENT && blendmode != AST_COPY)
-							splat = true;
+						splat = true;
 						ds_alpha = 0xFF;
 					}
 					else if (alpha < 1 && (blendmode == AST_TRANSLUCENT || blendmode == AST_ADD))
 						return; // Don't even draw it
 					else
+					{
 						ds_alpha = alpha;
-
-					R_SetSpanBlendingFunction(blendmode);
+						translucent = true;
+					}
 				}
 				else
 				{
 					INT32 transnum = R_AlphaToTransnum(alpha);
-					if (transnum == -1 && (blendmode == AST_TRANSLUCENT || blendmode == AST_COPY))
+					if (transnum == -1 && blendmode == AST_TRANSLUCENT)
 						return; // Don't even draw it
 					else if (transnum >= 0)
 					{
-						ds_transmap = R_GetBlendTable(blendmode, transnum);
-						if (!ds_transmap)
+						dp_transmap = R_GetBlendTable(blendmode, transnum);
+						if (dp_transmap)
+							translucent = true;
+						else
 							splat = true;
 					}
 					else // Opaque, but allow transparent flat pixels
 						splat = true;
 				}
 
-				if (splat)
+				if (translucent)
 				{
-					spanfunctype = SPAN_SPLAT;
+					spanfunctype = (pl->ffloor->fofflags & FOF_SPLAT) ? SPAN_SPLAT_TRANSLUCENT : SPAN_TRANSLUCENT;
+					R_SetSpanBlendingFunction(blendmode);
 				}
+				else if (splat)
+					spanfunctype = SPAN_SPLAT;
 
 				if (splat || (pl->extra_colormap && (pl->extra_colormap->flags & CMF_FOG)))
 					light = (pl->lightlevel >> LIGHTSEGSHIFT);
@@ -1184,22 +1224,33 @@ void R_DrawSinglePlane(visplane_t *pl)
 		else
 			R_SetSlopePlaneVectors(pl, 0, xoffs, yoffs);
 
-		if (spanfunctype == SPAN_WATER)
+		switch (spanfunctype)
+		{
+		case SPAN_WATER:
 			spanfunctype = SPAN_WATER_TILTED;
-		else if (spanfunctype == SPAN_SOLIDCOLOR_WATER)
+			break;
+		case SPAN_SOLIDCOLOR_WATER:
 			spanfunctype = SPAN_SOLIDCOLOR_TILTED_WATER;
-		else if (spanfunctype == SPAN_TRANSLUCENT)
+			break;
+		case SPAN_TRANSLUCENT:
 			spanfunctype = SPAN_TILTED_TRANSLUCENT;
-		else if (spanfunctype == SPAN_SOLIDCOLOR_TRANSLUCENT)
+			break;
+		case SPAN_SOLIDCOLOR_TRANSLUCENT:
 			spanfunctype = SPAN_SOLIDCOLOR_TILTED_TRANSLUCENT;
-		else if (spanfunctype == SPAN_SOLIDCOLOR)
+			break;
+		case SPAN_SOLIDCOLOR:
 			spanfunctype = SPAN_SOLIDCOLOR_TILTED;
-		else if (spanfunctype == SPAN_SPLAT)
+			break;
+		case SPAN_SPLAT:
 			spanfunctype = SPAN_SPLAT_TILTED;
-		else if (spanfunctype == SPAN_FOG)
+			break;
+		case SPAN_FOG:
 			spanfunctype = SPAN_FOG_TILTED;
-		else
+			break;
+		default:
 			spanfunctype = SPAN_TILTED;
+			break;
+		}
 
 #ifdef TRUECOLOR
 		if (tc_colormaps)
diff --git a/src/r_segs.c b/src/r_segs.c
index 25d17b17e..910fdb8ca 100644
--- a/src/r_segs.c
+++ b/src/r_segs.c
@@ -185,31 +185,27 @@ void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
 			{
 				if (!alpha)
 					return;
-				else if (alpha >= 255)
+				else if (alpha >= 255 && blendmode == AST_TRANSLUCENT)
 					translucent = false;
 			}
 
-			if (translucent)
-			{
-				dc_alpha = alpha;
-				R_SetColumnBlendingFunction(blendmode);
-			}
+			dc_alpha = alpha;
 		}
 		else
 		{
-			if (blendmode == AST_MODULATE)
-				dc_transmap = R_GetBlendTable(blendmode, 0);
-			else
-				dc_transmap = R_GetBlendTable(blendmode, R_GetLinedefTransTable(alpha));
-
-			if (!dc_transmap)
+			dp_transmap = R_GetBlendTable(blendmode, R_GetLinedefTransTable(alpha));
+			if (!dp_transmap)
 				translucent = false;
 		}
 
 		if (translucent)
+		{
 			colfunc = colfuncs[COLUMN_TRANSLUCENT];
+			R_SetColumnBlendingFunction(blendmode);
+		}
 	}
 
+	// Remember to update this whenever polyobjects begin supporting blend modes.
 	if (curline->polyseg && curline->polyseg->translucency > 0)
 	{
 		INT32 alphaval = curline->polyseg->translucency;
@@ -225,20 +221,20 @@ void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
 			else if (alphaval >= 255)
 				translucent = false;
 			else
-			{
 				dc_alpha = alphaval;
-				R_SetColumnBlendingFunction(AST_TRANSLUCENT);
-			}
 		}
 		else
 		{
-			dc_transmap = R_GetTranslucencyTable(alphaval);
-			if (!dc_transmap)
+			dp_transmap = R_GetTranslucencyTable(alphaval);
+			if (!dp_transmap)
 				translucent = false;
 		}
 
 		if (translucent)
+		{
 			colfunc = colfuncs[COLUMN_TRANSLUCENT];
+			R_SetColumnBlendingFunction(AST_TRANSLUCENT);
+		}
 	}
 
 #ifdef TRUECOLOR
@@ -733,24 +729,25 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
 
 	if (pfloor->fofflags & FOF_TRANSLUCENT)
 	{
-		INT32 alpha = pfloor->alpha;
+		// 3D floor alpha is a signed 32-bit value, for some arcane reason.
+		INT32 alpha = min(max(0, pfloor->alpha), 0xFF);
 		INT32 blendmode = pfloor->blend ? pfloor->blend : AST_TRANSLUCENT;
-		boolean translucent = true;
+		boolean translucent = false;
 
 		if (!usetranstables)
 		{
-			if (alpha >= 255) // Opaque
+			if (alpha >= 0xFF) // Opaque
 			{
-				translucent = blendmode != AST_TRANSLUCENT && blendmode != AST_COPY;
+				translucent = blendmode != AST_TRANSLUCENT;
 				dc_alpha = 0xFF;
 			}
 			else if (alpha < 1 && (blendmode == AST_TRANSLUCENT || blendmode == AST_ADD))
 				return; // Don't even draw it
 			else
+			{
 				dc_alpha = alpha;
-
-			if (translucent)
-				R_SetColumnBlendingFunction(blendmode);
+				translucent = true;
+			}
 		}
 		else
 		{
@@ -759,16 +756,17 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
 				return; // Don't even draw it
 			else if (transnum >= 0)
 			{
-				dc_transmap = R_GetBlendTable(blendmode, transnum);
-				if (!dc_transmap)
-					translucent = false;
+				dp_transmap = R_GetBlendTable(blendmode, transnum);
+				if (dp_transmap)
+					translucent = true;
 			}
-			else
-				translucent = false; // Opaque
 		}
 
 		if (translucent)
+		{
 			colfunc = colfuncs[COLUMN_TRANSLUCENT];
+			R_SetColumnBlendingFunction(blendmode);
+		}
 	}
 	else if (pfloor->fofflags & FOF_FOG)
 		colfunc = colfuncs[COLUMN_FOG];
diff --git a/src/r_splats.c b/src/r_splats.c
index e76c85dd1..d504e1d2b 100644
--- a/src/r_splats.c
+++ b/src/r_splats.c
@@ -495,21 +495,20 @@ static void R_RasterizeFloorSplat(floorsplat_t *pSplat, vector2_t *verts, visspr
 		ds_alpha = vis->alpha;
 
 		if (vis->flags & VIS_TRANSLUCENT)
-		{
-			R_SetSpanBlendingFunction(vis->blendmode);
 			translucent = true;
-		}
 	}
 	else if (vis->flags & VIS_TRANSLUCENT)
 	{
-		ds_transmap = vis->transmap;
+		dp_transmap = vis->transmap;
 		translucent = true;
 	}
 	else
-		ds_transmap = NULL;
+		dp_transmap = NULL;
 
 	if (translucent)
 	{
+		R_SetSpanBlendingFunction(vis->blendmode);
+
 		if (pSplat->slope)
 			spanfunctype = SPAN_SPRITE_TILTED_TRANSLUCENT;
 		else
diff --git a/src/r_things.c b/src/r_things.c
index a23a81fae..88980c750 100644
--- a/src/r_things.c
+++ b/src/r_things.c
@@ -867,7 +867,7 @@ static void R_DrawVisSprite(vissprite_t *vis)
 		R_SetColumnBlendingFunction(vis->blendmode);
 	}
 	else
-		dc_transmap = vis->transmap;    //Fab : 29-04-98: translucency table
+		dp_transmap = vis->transmap;    //Fab : 29-04-98: translucency table
 
 #ifdef TRUECOLOR
 	if (truecolor && dc_picfmt == PICFMT_PATCH32 && dc_colormap)
@@ -1079,7 +1079,7 @@ static void R_DrawPrecipitationVisSprite(vissprite_t *vis)
 			R_SetColumnBlendingFunction(vis->blendmode);
 		}
 		else
-			dc_transmap = vis->transmap;    //Fab : 29-04-98: translucency table
+			dp_transmap = vis->transmap;    //Fab : 29-04-98: translucency table
 	}
 
 #ifdef TRUECOLOR
diff --git a/src/tmap.nas b/src/tmap.nas
index 85091cbd5..10f12a89b 100644
--- a/src/tmap.nas
+++ b/src/tmap.nas
@@ -64,7 +64,7 @@ cextern dc_hires
 cextern centery
 cextern centeryfrac
 cextern dc_colormap
-cextern dc_transmap
+cextern dp_transmap
 cextern colormaps
 cextern vid
 cextern topleft
@@ -446,7 +446,7 @@ R_DrawTranslucentColumn_8_ASM:
         shr     eax,0x2
         test    byte [pixelcount],0x3
         mov     ch,al                   ;; quad count
-        mov     eax,[dc_transmap]
+        mov     eax,[dp_transmap]
         je      vt4quadloop
 ;;
 ;;  do un-even pixel
diff --git a/src/tmap.s b/src/tmap.s
index d98d82e25..ddacff32e 100644
--- a/src/tmap.s
+++ b/src/tmap.s
@@ -835,7 +835,7 @@ C(R_DrawTranslucentColumn_8):
     shrl    $2,%eax
     testb   $0x03,C(pixelcount)
     movb    %al,%ch             // quad count
-    movl    C(dc_transmap),%eax
+    movl    C(dp_transmap),%eax
     jz      vt4quadloop
 //
 //  do un-even pixel
diff --git a/src/tmap_mmx.nas b/src/tmap_mmx.nas
index a45667e23..c77c6f281 100644
--- a/src/tmap_mmx.nas
+++ b/src/tmap_mmx.nas
@@ -64,7 +64,7 @@ cextern dc_source
 cextern dc_hires
 cextern centery
 cextern centeryfrac
-cextern dc_transmap
+cextern dp_transmap
 
 cextern R_DrawColumn_8_ASM
 cextern R_Draw2sMultiPatchColumn_8_ASM