8 files changed, 83 insertions, 3 deletions
diff --git a/games/devtest/mods/testnodes/drawtypes.lua b/games/devtest/mods/testnodes/drawtypes.lua
index 6bf57fa37..b3ab2b322 100644
--- a/games/devtest/mods/testnodes/drawtypes.lua
+++ b/games/devtest/mods/testnodes/drawtypes.lua
@@ -145,6 +145,23 @@ minetest.register_node("testnodes:fencelike", {
 })
 
 minetest.register_node("testnodes:torchlike", {
+	description = S("Torchlike Drawtype Test Node"),
+	drawtype = "torchlike",
+	paramtype = "light",
+	tiles = {
+		"testnodes_torchlike_floor.png",
+		"testnodes_torchlike_ceiling.png",
+		"testnodes_torchlike_wall.png",
+	},
+
+
+	walkable = false,
+	sunlight_propagates = true,
+	groups = { dig_immediate = 3 },
+	inventory_image = fallback_image("testnodes_torchlike_floor.png"),
+})
+
+minetest.register_node("testnodes:torchlike_wallmounted", {
 	description = S("Wallmounted Torchlike Drawtype Test Node"),
 	drawtype = "torchlike",
 	paramtype = "light",
@@ -162,6 +179,8 @@ minetest.register_node("testnodes:torchlike", {
 	inventory_image = fallback_image("testnodes_torchlike_floor.png"),
 })
 
+
+
 minetest.register_node("testnodes:signlike", {
 	description = S("Wallmounted Signlike Drawtype Test Node"),
 	drawtype = "signlike",
@@ -514,10 +533,19 @@ local scale = function(subname, desc_double, desc_half)
 	minetest.register_node("testnodes:"..subname.."_half", def)
 end
 
+scale("allfaces",
+	S("Double-sized Allfaces Drawtype Test Node"),
+	S("Half-sized Allfaces Drawtype Test Node"))
+scale("allfaces_optional",
+	S("Double-sized Allfaces Optional Drawtype Test Node"),
+	S("Half-sized Allfaces Optional Drawtype Test Node"))
+scale("allfaces_optional_waving",
+	S("Double-sized Waving Allfaces Optional Drawtype Test Node"),
+	S("Half-sized Waving Allfaces Optional Drawtype Test Node"))
 scale("plantlike",
 	S("Double-sized Plantlike Drawtype Test Node"),
 	S("Half-sized Plantlike Drawtype Test Node"))
-scale("torchlike",
+scale("torchlike_wallmounted",
 	S("Double-sized Wallmounted Torchlike Drawtype Test Node"),
 	S("Half-sized Wallmounted Torchlike Drawtype Test Node"))
 scale("signlike",
diff --git a/games/devtest/mods/testnodes/light.lua b/games/devtest/mods/testnodes/light.lua
index 94409e83f..8ab4416d9 100644
--- a/games/devtest/mods/testnodes/light.lua
+++ b/games/devtest/mods/testnodes/light.lua
@@ -22,7 +22,8 @@ end
 -- Lets light through, but not sunlight, leading to a
 -- reduction in light level when light passes through
 minetest.register_node("testnodes:sunlight_filter", {
-	description = S("Sunlight Filter"),
+	description = S("Sunlight Filter") .."\n"..
+		S("Lets light through, but weakens sunlight"),
 	paramtype = "light",
 
 
@@ -35,7 +36,8 @@ minetest.register_node("testnodes:sunlight_filter", {
 
 -- Lets light and sunlight through without obstruction
 minetest.register_node("testnodes:sunlight_propagator", {
-	description = S("Sunlight Propagator"),
+	description = S("Sunlight Propagator") .."\n"..
+		S("Lets all light through"),
 	paramtype = "light",
 	sunlight_propagates = true,
 
diff --git a/games/devtest/mods/testnodes/mod.conf b/games/devtest/mods/testnodes/mod.conf
index 4824c6ed0..d894c3452 100644
--- a/games/devtest/mods/testnodes/mod.conf
+++ b/games/devtest/mods/testnodes/mod.conf
@@ -1,2 +1,3 @@
 name = testnodes
 description = Contains a bunch of basic example nodes for demonstrative purposes, development and testing
+depends = stairs
diff --git a/games/devtest/mods/testnodes/textures.lua b/games/devtest/mods/testnodes/textures.lua
index 6ffef8fe9..e0724c229 100644
--- a/games/devtest/mods/testnodes/textures.lua
+++ b/games/devtest/mods/testnodes/textures.lua
@@ -71,3 +71,52 @@ for a=1,#alphas do
 		groups = { dig_immediate = 3 },
 	})
 end
+
+
+-- Bumpmapping and Parallax Occlusion
+
+-- This node has a normal map which corresponds to a pyramid with sides tilted
+-- by an angle of 45°, i.e. the normal map contains four vectors which point
+-- diagonally away from the surface (e.g. (0.7, 0.7, 0)),
+-- and the heights in the height map linearly increase towards the centre,
+-- so that the surface corresponds to a simple pyramid.
+-- The node can help to determine if e.g. tangent space transformations work
+-- correctly.
+-- If, for example, the light comes from above, then the (tilted) pyramids
+-- should look like they're lit from this light direction on all node faces.
+-- The white albedo texture has small black indicators which can be used to see
+-- how it is transformed ingame (and thus see if there's rotation around the
+-- normal vector).
+minetest.register_node("testnodes:height_pyramid", {
+	description = "Bumpmapping and Parallax Occlusion Tester (height pyramid)",
+	tiles = {"testnodes_height_pyramid.png"},
+	groups = {dig_immediate = 3},
+})
+
+-- The stairs nodes should help to validate if shading works correctly for
+-- rotated nodes (which have rotated textures).
+stairs.register_stair_and_slab("height_pyramid", "experimantal:height_pyramid",
+	{dig_immediate = 3},
+	{"testnodes_height_pyramid.png"},
+	"Bumpmapping and Parallax Occlusion Tester Stair (height pyramid)",
+	"Bumpmapping and Parallax Occlusion Tester Slab (height pyramid)")
+
+-- This node has a simple heightmap for parallax occlusion testing and flat
+-- normalmap.
+-- When parallax occlusion is enabled, the yellow scrawl should stick out of
+-- the texture when viewed at an angle.
+minetest.register_node("testnodes:parallax_extruded", {
+	description = "Parallax Occlusion Tester",
+	tiles = {"testnodes_parallax_extruded.png"},
+	groups = {dig_immediate = 3},
+})
+
+-- Analogously to the height pyramid stairs nodes,
+-- these nodes should help to validate if parallax occlusion works correctly for
+-- rotated nodes (which have rotated textures).
+stairs.register_stair_and_slab("parallax_extruded",
+	"experimantal:parallax_extruded",
+	{dig_immediate = 3},
+	{"testnodes_parallax_extruded.png"},
+	"Parallax Occlusion Tester Stair",
+	"Parallax Occlusion Tester Slab")
diff --git a/games/devtest/mods/testnodes/textures/testnodes_height_pyramid.png b/games/devtest/mods/testnodes/textures/testnodes_height_pyramid.png
new file mode 100644
index 000000000..8c787b740
--- /dev/null
+++ b/games/devtest/mods/testnodes/textures/testnodes_height_pyramid.png
diff --git a/games/devtest/mods/testnodes/textures/testnodes_height_pyramid_normal.png b/games/devtest/mods/testnodes/textures/testnodes_height_pyramid_normal.png
new file mode 100644
index 000000000..5ab7865f2
--- /dev/null
+++ b/games/devtest/mods/testnodes/textures/testnodes_height_pyramid_normal.png
diff --git a/games/devtest/mods/testnodes/textures/testnodes_parallax_extruded.png b/games/devtest/mods/testnodes/textures/testnodes_parallax_extruded.png
new file mode 100644
index 000000000..7e1c32398
--- /dev/null
+++ b/games/devtest/mods/testnodes/textures/testnodes_parallax_extruded.png
diff --git a/games/devtest/mods/testnodes/textures/testnodes_parallax_extruded_normal.png b/games/devtest/mods/testnodes/textures/testnodes_parallax_extruded_normal.png
new file mode 100644
index 000000000..b134699d0
--- /dev/null
+++ b/games/devtest/mods/testnodes/textures/testnodes_parallax_extruded_normal.png