diff options
Diffstat (limited to 'doc/lua_api.txt')
| -rw-r--r-- | doc/lua_api.txt | 40 |
1 files changed, 3 insertions, 37 deletions
diff --git a/doc/lua_api.txt b/doc/lua_api.txt index 1631d564c..d3aaa309c 100644 --- a/doc/lua_api.txt +++ b/doc/lua_api.txt @@ -401,35 +401,6 @@ stripping out the file extension: * e.g. `foomod_foothing` -Normalmap Textures ------------------- - -If shaders and bumpmapping or parallax occlusion is enabled, Minetest tries -to load normalmaps. -Those image files have to end with `_normal.png` and start with the same name -as their corresponding texture. -For example a normalmap for `foomod_foothing.png` has to be called -`foomod_foothing_normal.png`. - -The sRGB R, G and B colour values of a normalmap pixel are each directly -mapped from `{0, ..., 255}` to `[-1, 1]` and, taken together, -define the normal vector. -The alpha channel defines the heightmap for parallax occlusion. -To be safe, the alpha values should always be bigger than zero -because the colour values, which define the normal vector, -may be undefined for image formats where colour is discarded in fully -transparent pixels. - -Bumpmapping and parallax occlusion are currently experimental features: - -* Bumpmapping in Minetest happens in an obscure way; there are no light sources - defined in the shaders except the sunlight direction. -* Parallax occlusion with relief-mapping mode does not yet work correctly - together with Minetest's Fastfaces. -* The normalmap files must end with `.png`, so other image files are not - supported. - - Texture modifiers ----------------- @@ -834,7 +805,7 @@ Example (colored grass block): -- Overlay tiles: define them in the same style -- The top and bottom tile does not have overlay overlay_tiles = {"", "", - {name = "default_grass_side.png", tileable_vertical = false}}, + {name = "default_grass_side.png"}}, -- Global color, used in inventory color = "green", -- Palette in the world @@ -1204,7 +1175,7 @@ Look for examples in `games/devtest` or `games/minetest_game`. base cube without affecting them. * The base cube texture tiles are defined as normal, the `plantlike` extension uses the defined special tile, for example: - `special_tiles = {{name = "default_papyrus.png", tileable_vertical = true}},` + `special_tiles = {{name = "default_papyrus.png"}},` `*_optional` drawtypes need less rendering time if deactivated (always client-side). @@ -7043,13 +7014,8 @@ Tile definition * `"image.png"` * `{name="image.png", animation={Tile Animation definition}}` -* `{name="image.png", backface_culling=bool, tileable_vertical=bool, - tileable_horizontal=bool, align_style="node"/"world"/"user", scale=int}` +* `{name="image.png", backface_culling=bool, align_style="node"/"world"/"user", scale=int}` * backface culling enabled by default for most nodes - * tileable flags are info for shaders, how they should treat texture - when displacement mapping is used. - Directions are from the point of view of the tile texture, - not the node it's on. * align style determines whether the texture will be rotated with the node or kept aligned with its surroundings. "user" means that client setting will be used, similar to `glasslike_framed_optional`. |