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feat: Implement double-sided cube indices generation for enhanced rendering

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johndoe6345789
2026-01-05 23:56:04 +00:00
parent d7d4411251
commit 99690e381d
1 changed files with 26 additions and 1 deletions
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27
scripts/cube_logic.lua
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@@ -8,6 +8,26 @@ local cube_mesh_info = {
local cube_vertices = {}
local cube_indices = {}
local cube_indices_double_sided = {}
local function build_double_sided_indices(indices)
local doubled = {}
for i = 1, #indices, 3 do
local a = indices[i]
local b = indices[i + 1]
local c = indices[i + 2]
if not (a and b and c) then
break
end
doubled[#doubled + 1] = a
doubled[#doubled + 1] = b
doubled[#doubled + 1] = c
doubled[#doubled + 1] = c
doubled[#doubled + 1] = b
doubled[#doubled + 1] = a
end
return doubled
end
local function load_cube_mesh()
if type(load_mesh_from_file) ~= "function" then
@@ -28,6 +48,7 @@ local function load_cube_mesh()
cube_vertices = mesh.vertices
cube_indices = mesh.indices
cube_indices_double_sided = build_double_sided_indices(cube_indices)
cube_mesh_info.loaded = true
cube_mesh_info.vertex_count = #mesh.vertices
cube_mesh_info.index_count = #mesh.indices
@@ -197,6 +218,10 @@ end
if cube_mesh_info.loaded then
log_debug("Loaded cube mesh from %s (%d vertices, %d indices)",
cube_mesh_info.path, cube_mesh_info.vertex_count, cube_mesh_info.index_count)
if #cube_indices_double_sided > 0 then
log_debug("Built double-sided cube indices (%d -> %d)",
cube_mesh_info.index_count, #cube_indices_double_sided)
end
end
local function build_static_shader_variants()
@@ -628,7 +653,7 @@ local function create_spinning_cube()
return {
vertices = cube_vertices,
indices = cube_indices,
indices = (#cube_indices_double_sided > 0) and cube_indices_double_sided or cube_indices,
compute_model_matrix = compute_model_matrix,
shader_key = "default",
}