BRNSystems/minetest
1
0
Fork 0
forked from Mirrorlandia_minetest/minetest
Code Pull Requests 1 Activity

Allow per-tiles culling.

Browse Source 
Backface culling is enabled by default for all tiles, as this
is how the lua parser initializes each tiledef. We revert to
always using the value from the tiledef since it is always
read and serialized.

Mods that wish to enable culling for e.g. mesh nodes, now can
specify the following to enable backface culling:

    tiles = {{ name = "tex.png", backface_culling = true }},

Note the double '{' and use of 'name' key here! In the same
fashion, backface_culling can be disabled for any node now.

I've tested this against the new door models and this properly
allows me to disable culling per node. I've also tested this
against my crops mod which uses mesh nodes where culling needs
to be disabled, and tested also with plantlike drawtype nodes
where we want this to continue to be disabled.

No default setting has changed. The defaults are just migrated
from nodedef.cpp to c_content.cpp.
This commit is contained in:
Auke Kok 2016-01-18 20:44:46 -08:00 committed by paramat
parent 9f988e3b96
commit 882a89d65a
3 changed files with 23 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
doc/lua_api.txt
View File

@ -3358,7 +3358,7 @@ Definition tables
* `{name="image.png", animation={Tile Animation definition}}`
* `{name="image.png", backface_culling=bool, tileable_vertical=bool,
tileable_horizontal=bool}`
* backface culling only supported in special tiles.
* 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,

12
src/nodedef.cpp
View File

@ -843,12 +843,7 @@ void CNodeDefManager::updateTextures(IGameDef *gamedef,
assert(f->liquid_type == LIQUID_SOURCE);
if (opaque_water)
f->alpha = 255;
if (new_style_water){
f->solidness = 0;
} else {
f->solidness = 1;
f->backface_culling = false;
}
f->solidness = new_style_water ? 0 : 1;
is_liquid = true;
break;
case NDT_FLOWINGLIQUID:
@ -899,17 +894,14 @@ void CNodeDefManager::updateTextures(IGameDef *gamedef,
break;
case NDT_PLANTLIKE:
f->solidness = 0;
f->backface_culling = false;
if (f->waving == 1)
material_type = TILE_MATERIAL_WAVING_PLANTS;
break;
case NDT_FIRELIKE:
f->backface_culling = false;
f->solidness = 0;
break;
case NDT_MESH:
f->solidness = 0;
f->backface_culling = false;
break;
case NDT_TORCHLIKE:
case NDT_SIGNLIKE:
@ -941,7 +933,7 @@ void CNodeDefManager::updateTextures(IGameDef *gamedef,
// Tiles (fill in f->tiles[])
for (u16 j = 0; j < 6; j++) {
fillTileAttribs(tsrc, &f->tiles[j], &tiledef[j], tile_shader[j],
use_normal_texture, f->backface_culling, f->alpha, material_type);
use_normal_texture, f->tiledef[j].backface_culling, f->alpha, material_type);
}
// Special tiles (fill in f->special_tiles[])

23
src/script/common/c_content.cpp
View File

@ -294,14 +294,31 @@ TileDef read_tiledef(lua_State *L, int index, u8 drawtype)
index = lua_gettop(L) + 1 + index;
TileDef tiledef;
bool default_tiling = (drawtype == NDT_PLANTLIKE || drawtype == NDT_FIRELIKE)
? false : true;
bool default_tiling = true;
bool default_culling = true;
switch (drawtype) {
case NDT_PLANTLIKE:
case NDT_FIRELIKE:
default_tiling = false;
// "break" is omitted here intentionaly, as PLANTLIKE
// FIRELIKE drawtype both should default to having
// backface_culling to false.
case NDT_MESH:
case NDT_LIQUID:
default_culling = false;
break;
default:
break;
}
// key at index -2 and value at index
if(lua_isstring(L, index)){
// "default_lava.png"
tiledef.name = lua_tostring(L, index);
tiledef.tileable_vertical = default_tiling;
tiledef.tileable_horizontal = default_tiling;
tiledef.backface_culling = default_culling;
}
else if(lua_istable(L, index))
{
@ -310,7 +327,7 @@ TileDef read_tiledef(lua_State *L, int index, u8 drawtype)
getstringfield(L, index, "name", tiledef.name);
getstringfield(L, index, "image", tiledef.name); // MaterialSpec compat.
tiledef.backface_culling = getboolfield_default(
L, index, "backface_culling", true);
L, index, "backface_culling", default_culling);
tiledef.tileable_horizontal = getboolfield_default(
L, index, "tileable_horizontal", default_tiling);
tiledef.tileable_vertical = getboolfield_default(