diff --git a/src/main/scala/li/cil/oc/client/renderer/item/ItemRenderer.scala b/src/main/scala/li/cil/oc/client/renderer/item/ItemRenderer.scala
index f3d88ad86..99c358e49 100644
--- a/src/main/scala/li/cil/oc/client/renderer/item/ItemRenderer.scala
+++ b/src/main/scala/li/cil/oc/client/renderer/item/ItemRenderer.scala
@@ -193,7 +193,7 @@ object ItemRenderer extends IItemRenderer {
     GL11.glDisable(GL11.GL_CULL_FACE)
 
     // Front.
-    GL11.glNormal3f(0, 0, 1)
+    // GL11.glNormal3f(0, 0, 1)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.minX * 16), texture.getInterpolatedV(16 - bounds.minY * 16))
     GL11.glVertex3d(bounds.minX, bounds.minY, bounds.maxZ)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.maxX * 16), texture.getInterpolatedV(16 - bounds.minY * 16))
@@ -204,7 +204,7 @@ object ItemRenderer extends IItemRenderer {
     GL11.glVertex3d(bounds.minX, bounds.maxY, bounds.maxZ)
 
     // Back.
-    GL11.glNormal3f(0, 0, -1)
+    // GL11.glNormal3f(0, 0, -1)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.maxX * 16), texture.getInterpolatedV(16 - bounds.minY * 16))
     GL11.glVertex3d(bounds.maxX, bounds.minY, bounds.minZ)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.minX * 16), texture.getInterpolatedV(16 - bounds.minY * 16))
@@ -215,7 +215,7 @@ object ItemRenderer extends IItemRenderer {
     GL11.glVertex3d(bounds.maxX, bounds.maxY, bounds.minZ)
 
     // Top.
-    GL11.glNormal3f(0, 1, 0)
+    // GL11.glNormal3f(0, 1, 0)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.maxX * 16), texture.getInterpolatedV(bounds.maxZ * 16))
     GL11.glVertex3d(bounds.maxX, bounds.maxY, bounds.maxZ)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.maxX * 16), texture.getInterpolatedV(bounds.minZ * 16))
@@ -226,7 +226,7 @@ object ItemRenderer extends IItemRenderer {
     GL11.glVertex3d(bounds.minX, bounds.maxY, bounds.maxZ)
 
     // Bottom.
-    GL11.glNormal3f(0, -1, 0)
+    // GL11.glNormal3f(0, -1, 0)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.minX * 16), texture.getInterpolatedV(bounds.maxZ * 16))
     GL11.glVertex3d(bounds.minX, bounds.minY, bounds.maxZ)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.minX * 16), texture.getInterpolatedV(bounds.minZ * 16))
@@ -237,7 +237,7 @@ object ItemRenderer extends IItemRenderer {
     GL11.glVertex3d(bounds.maxX, bounds.minY, bounds.maxZ)
 
     // Left.
-    GL11.glNormal3f(1, 0, 0)
+    // GL11.glNormal3f(1, 0, 0)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.maxZ * 16), texture.getInterpolatedV(16 - bounds.maxY * 16))
     GL11.glVertex3d(bounds.maxX, bounds.maxY, bounds.maxZ)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.maxZ * 16), texture.getInterpolatedV(16 - bounds.minY * 16))
@@ -248,7 +248,7 @@ object ItemRenderer extends IItemRenderer {
     GL11.glVertex3d(bounds.maxX, bounds.maxY, bounds.minZ)
 
     // Right.
-    GL11.glNormal3f(-1, 0, 0)
+    // GL11.glNormal3f(-1, 0, 0)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.maxZ * 16), texture.getInterpolatedV(16 - bounds.minY * 16))
     GL11.glVertex3d(bounds.minX, bounds.minY, bounds.maxZ)
     GL11.glTexCoord2f(texture.getInterpolatedU(bounds.maxZ * 16), texture.getInterpolatedV(16 - bounds.maxY * 16))
diff --git a/src/main/scala/li/cil/oc/client/renderer/item/UpgradeRenderer.scala b/src/main/scala/li/cil/oc/client/renderer/item/UpgradeRenderer.scala
index fa3f64206..1b44fa01e 100644
--- a/src/main/scala/li/cil/oc/client/renderer/item/UpgradeRenderer.scala
+++ b/src/main/scala/li/cil/oc/client/renderer/item/UpgradeRenderer.scala
@@ -68,7 +68,7 @@ object UpgradeRenderer {
     GL11.glBegin(GL11.GL_QUADS)
 
     // Front.
-    GL11.glNormal3f(0, 0, 1)
+    // GL11.glNormal3f(0, 0, 1)
     GL11.glTexCoord2f(frontOffset, 0.5f)
     GL11.glVertex3d(bounds.minX, bounds.minY, bounds.maxZ)
     GL11.glTexCoord2f(frontOffset + 0.5f, 0.5f)
@@ -79,7 +79,7 @@ object UpgradeRenderer {
     GL11.glVertex3d(bounds.minX, bounds.maxY, bounds.maxZ)
 
     // Top.
-    GL11.glNormal3f(0, 1, 0)
+    // GL11.glNormal3f(0, 1, 0)
     GL11.glTexCoord2f(1, 0.5f)
     GL11.glVertex3d(bounds.maxX, bounds.maxY, bounds.maxZ)
     GL11.glTexCoord2f(1, 1)
@@ -90,7 +90,7 @@ object UpgradeRenderer {
     GL11.glVertex3d(bounds.minX, bounds.maxY, bounds.maxZ)
 
     // Bottom.
-    GL11.glNormal3f(0, -1, 0)
+    // GL11.glNormal3f(0, -1, 0)
     GL11.glTexCoord2f(0.5f, 0.5f)
     GL11.glVertex3d(bounds.minX, bounds.minY, bounds.maxZ)
     GL11.glTexCoord2f(0.5f, 1)
@@ -101,7 +101,7 @@ object UpgradeRenderer {
     GL11.glVertex3d(bounds.maxX, bounds.minY, bounds.maxZ)
 
     // Left.
-    GL11.glNormal3f(1, 0, 0)
+    // GL11.glNormal3f(1, 0, 0)
     GL11.glTexCoord2f(0, 0.5f)
     GL11.glVertex3d(bounds.maxX, bounds.maxY, bounds.maxZ)
     GL11.glTexCoord2f(0, 1)
@@ -112,7 +112,7 @@ object UpgradeRenderer {
     GL11.glVertex3d(bounds.maxX, bounds.maxY, bounds.minZ)
 
     // Right.
-    GL11.glNormal3f(-1, 0, 0)
+    // GL11.glNormal3f(-1, 0, 0)
     GL11.glTexCoord2f(0, 1)
     GL11.glVertex3d(bounds.minX, bounds.minY, bounds.maxZ)
     GL11.glTexCoord2f(0, 0.5f)
diff --git a/src/main/scala/li/cil/oc/client/renderer/tileentity/RobotRenderer.scala b/src/main/scala/li/cil/oc/client/renderer/tileentity/RobotRenderer.scala
index 44a9aed71..589e5f627 100644
--- a/src/main/scala/li/cil/oc/client/renderer/tileentity/RobotRenderer.scala
+++ b/src/main/scala/li/cil/oc/client/renderer/tileentity/RobotRenderer.scala
@@ -72,21 +72,22 @@ object RobotRenderer extends TileEntitySpecialRenderer {
 
     GL11.glNewList(displayList, GL11.GL_COMPILE)
 
+    // This is _all_ deprecated old GL stuff... https://stackoverflow.com/a/13149580
     GL11.glBegin(GL11.GL_TRIANGLE_FAN)
     GL11.glTexCoord2f(0.25f, 0.25f)
     GL11.glVertex3f(0.5f, 1, 0.5f)
     GL11.glTexCoord2f(0, 0.5f)
     GL11.glVertex3f(l, gt, h)
-    normal(Vec3.createVectorHelper(0, 0.2, 1))
+    // normal(Vec3.createVectorHelper(0, 0.2, 1))
     GL11.glTexCoord2f(0.5f, 0.5f)
     GL11.glVertex3f(h, gt, h)
-    normal(Vec3.createVectorHelper(1, 0.2, 0))
+    // normal(Vec3.createVectorHelper(1, 0.2, 0))
     GL11.glTexCoord2f(0.5f, 0)
     GL11.glVertex3f(h, gt, l)
-    normal(Vec3.createVectorHelper(0, 0.2, -1))
+    // normal(Vec3.createVectorHelper(0, 0.2, -1))
     GL11.glTexCoord2f(0, 0)
     GL11.glVertex3f(l, gt, l)
-    normal(Vec3.createVectorHelper(-1, 0.2, 0))
+    // normal(Vec3.createVectorHelper(-1, 0.2, 0))
     GL11.glTexCoord2f(0, 0.5f)
     GL11.glVertex3f(l, gt, h)
     GL11.glEnd()
@@ -108,16 +109,16 @@ object RobotRenderer extends TileEntitySpecialRenderer {
     GL11.glVertex3f(0.5f, 0.03f, 0.5f)
     GL11.glTexCoord2f(0.5f, 0)
     GL11.glVertex3f(l, gb, l)
-    normal(Vec3.createVectorHelper(0, -0.2, 1))
+    // normal(Vec3.createVectorHelper(0, -0.2, 1))
     GL11.glTexCoord2f(1, 0)
     GL11.glVertex3f(h, gb, l)
-    normal(Vec3.createVectorHelper(1, -0.2, 0))
+    // normal(Vec3.createVectorHelper(1, -0.2, 0))
     GL11.glTexCoord2f(1, 0.5f)
     GL11.glVertex3f(h, gb, h)
-    normal(Vec3.createVectorHelper(0, -0.2, -1))
+    // normal(Vec3.createVectorHelper(0, -0.2, -1))
     GL11.glTexCoord2f(0.5f, 0.5f)
     GL11.glVertex3f(l, gb, h)
-    normal(Vec3.createVectorHelper(-1, -0.2, 0))
+    // normal(Vec3.createVectorHelper(-1, -0.2, 0))
     GL11.glTexCoord2f(0.5f, 0)
     GL11.glVertex3f(l, gb, l)
     GL11.glEnd()