102 lines
3.6 KiB
GDScript
102 lines
3.6 KiB
GDScript
extends VoxelMesherCubic
|
|
class_name GDCubicVoxelMesher
|
|
|
|
# Copyright Péter Magyar relintai@gmail.com
|
|
# MIT License, might be merged into the Voxelman engine module
|
|
|
|
# Copyright (c) 2019-2020 Péter Magyar
|
|
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documentation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in all
|
|
# copies or substantial portions of the Software.
|
|
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
# SOFTWARE.
|
|
|
|
var count : int = 0
|
|
|
|
func _add_chunk(chunk : VoxelChunk) -> void:
|
|
chunk.generate_ao();
|
|
|
|
var x_size : int = chunk.get_size_x() - 1
|
|
var y_size : int = chunk.get_size_y() - 1
|
|
var z_size : int = chunk.get_size_z() - 1
|
|
|
|
var lod_size : float = 1
|
|
var voxel_size : float = 1
|
|
|
|
var cube_points : VoxelCubePoints = VoxelCubePoints.new()
|
|
|
|
var tile_uv_size : float = 1/4.0
|
|
var base_light : Color = Color(0.4, 0.4, 0.4)
|
|
|
|
for y in range(chunk.get_margin_start() + lod_size, y_size, lod_size):
|
|
for z in range(chunk.get_margin_start() + lod_size, z_size, lod_size):
|
|
for x in range(chunk.get_margin_start() + lod_size, x_size, lod_size):
|
|
|
|
cube_points.setup(chunk, x, y, z, lod_size)
|
|
|
|
if not cube_points.has_points():
|
|
continue
|
|
|
|
for face in range(VoxelCubePoints.VOXEL_FACE_COUNT):
|
|
if not cube_points.is_face_visible(face):
|
|
continue
|
|
|
|
add_indices(get_vertex_count() + 2)
|
|
add_indices(get_vertex_count() + 1)
|
|
add_indices(get_vertex_count() + 0)
|
|
add_indices(get_vertex_count() + 3)
|
|
add_indices(get_vertex_count() + 2)
|
|
add_indices(get_vertex_count() + 0)
|
|
|
|
var vertices : Array = [
|
|
cube_points.get_point_for_face(face, 0),
|
|
cube_points.get_point_for_face(face, 1),
|
|
cube_points.get_point_for_face(face, 2),
|
|
cube_points.get_point_for_face(face, 3)
|
|
]
|
|
|
|
var normals : Array = [
|
|
(vertices[3] - vertices[0]).cross(vertices[1] - vertices[0]),
|
|
(vertices[0] - vertices[1]).cross(vertices[2] - vertices[1]),
|
|
(vertices[1] - vertices[2]).cross(vertices[3] - vertices[2]),
|
|
(vertices[2] - vertices[3]).cross(vertices[0] - vertices[3])
|
|
]
|
|
|
|
var face_light_direction : Vector3 = cube_points.get_face_light_direction(face)
|
|
|
|
for i in range(4):
|
|
add_normal(normals[i])
|
|
|
|
var light : Color = cube_points.get_face_point_light_color(face, i)
|
|
light += base_light
|
|
|
|
var NdotL : float = clamp(normals[i].dot(face_light_direction), 0, 1.0)
|
|
|
|
light *= NdotL
|
|
|
|
light -= cube_points.get_face_point_ao_color(face, i) * ao_strength
|
|
add_color(light)
|
|
|
|
light.r = clamp(light.r, 0, 1.0)
|
|
light.g = clamp(light.g, 0, 1.0)
|
|
light.b = clamp(light.b, 0, 1.0)
|
|
|
|
add_uv((cube_points.get_point_uv_direction(face, i) + Vector2(0.5, 0.5)) * Vector2(tile_uv_size, tile_uv_size))
|
|
|
|
add_vertex((vertices[i] * voxel_size + Vector3(x, y, z)) * voxel_scale)
|
|
|
|
|