mirror of
https://github.com/cyberarm/i-mic-fps.git
synced 2025-12-15 15:42:35 +00:00
Restructured Model loading to enable easier implementation of other parsers
This commit is contained in:
180
lib/model/parsers/wavefront_parser.rb
Normal file
180
lib/model/parsers/wavefront_parser.rb
Normal file
@@ -0,0 +1,180 @@
|
||||
class IMICFPS
|
||||
class WavefrontParser < Model::Parser
|
||||
def self.handles
|
||||
[:obj]
|
||||
end
|
||||
|
||||
def initialize(model)
|
||||
@model = model
|
||||
end
|
||||
|
||||
def parse
|
||||
lines = 0
|
||||
list = File.read(@model.file_path).split("\n")
|
||||
list.each do |line|
|
||||
lines+=1
|
||||
line = line.strip
|
||||
|
||||
array = line.split(' ')
|
||||
case array[0]
|
||||
when 'mtllib'
|
||||
@model.material_file = array[1]
|
||||
parse_mtllib
|
||||
when 'usemtl'
|
||||
set_material(array[1])
|
||||
when 'o'
|
||||
change_object(array[1])
|
||||
when 's'
|
||||
set_smoothing(array[1])
|
||||
when 'v'
|
||||
add_vertex(array)
|
||||
when 'vt'
|
||||
add_texture_coordinate(array)
|
||||
|
||||
when 'vn'
|
||||
add_normal(array)
|
||||
|
||||
when 'f'
|
||||
verts = []
|
||||
uvs = []
|
||||
norms = []
|
||||
array[1..3].each do |f|
|
||||
verts << f.split("/")[0]
|
||||
uvs << f.split("/")[1]
|
||||
norms << f.split("/")[2]
|
||||
end
|
||||
|
||||
face = Face.new
|
||||
face.vertices = []
|
||||
face.uvs = []
|
||||
face.normals = []
|
||||
face.colors = []
|
||||
face.material = material
|
||||
face.smoothing= @model.smoothing
|
||||
|
||||
mat = face.material.diffuse
|
||||
color = Vector.new(mat.red, mat.green, mat.blue)
|
||||
|
||||
verts.each_with_index do |v, index|
|
||||
|
||||
if uvs.first != ""
|
||||
face.vertices << @model.vertices[Integer(v)-1]
|
||||
face.uvs << @model.uvs[Integer(uvs[index])-1]
|
||||
face.normals << @model.normals[Integer(norms[index])-1]
|
||||
face.colors << color
|
||||
else
|
||||
face.vertices << @model.vertices[Integer(v)-1]
|
||||
face.uvs << nil
|
||||
face.normals << @model.normals[Integer(norms[index])-1]
|
||||
face.colors << color
|
||||
end
|
||||
end
|
||||
|
||||
@model.current_object.faces << face
|
||||
@model.faces << face
|
||||
end
|
||||
end
|
||||
|
||||
puts "Total Lines: #{lines}" if $window.config.get(:debug_options, :stats)
|
||||
@model.calculate_bounding_box(@model.vertices, @model.bounding_box)
|
||||
@model.objects.each do |o|
|
||||
@model.calculate_bounding_box(o.vertices, o.bounding_box)
|
||||
end
|
||||
end
|
||||
|
||||
def parse_mtllib
|
||||
file = File.open(@model.file_path.sub(File.basename(@model.file_path), '')+@model.material_file, 'r')
|
||||
file.readlines.each do |line|
|
||||
array = line.strip.split(' ')
|
||||
case array.first
|
||||
when 'newmtl'
|
||||
material = Model::Material.new(array.last)
|
||||
@model.current_material = array.last
|
||||
@model.materials[array.last] = material
|
||||
when 'Ns' # Specular Exponent
|
||||
when 'Ka' # Ambient color
|
||||
@model.materials[@model.current_material].ambient = Color.new(Float(array[1]), Float(array[2]), Float(array[3]))
|
||||
when 'Kd' # Diffuse color
|
||||
@model.materials[@model.current_material].diffuse = Color.new(Float(array[1]), Float(array[2]), Float(array[3]))
|
||||
when 'Ks' # Specular color
|
||||
@model.materials[@model.current_material].specular = Color.new(Float(array[1]), Float(array[2]), Float(array[3]))
|
||||
when 'Ke' # Emissive
|
||||
when 'Ni' # Unknown (Blender Specific?)
|
||||
when 'd' # Dissolved (Transparency)
|
||||
when 'illum' # Illumination model
|
||||
when 'map_Kd' # Diffuse texture
|
||||
texture = File.basename(array[1])
|
||||
texture_path = "#{File.expand_path("../../", @model.file_path)}/textures/#{texture}"
|
||||
@model.materials[@model.current_material].set_texture(texture_path)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
def change_object(name)
|
||||
@model.objects << Model::ModelObject.new(name)
|
||||
@model.current_object = @model.objects.last
|
||||
end
|
||||
|
||||
def set_smoothing(value)
|
||||
if value == "1"
|
||||
@model.smoothing = true
|
||||
else
|
||||
@model.smoothing = false
|
||||
end
|
||||
end
|
||||
|
||||
def set_material(name)
|
||||
@model.current_material = name
|
||||
end
|
||||
|
||||
def material
|
||||
@model.materials[@model.current_material]
|
||||
end
|
||||
|
||||
def faces_count
|
||||
count = 0
|
||||
@model.objects.each {|o| count+=o.faces.count}
|
||||
return count
|
||||
end
|
||||
|
||||
def add_vertex(array)
|
||||
@model.vertex_count+=1
|
||||
vert = nil
|
||||
if array.size == 5
|
||||
vert = Vector.new(Float(array[1]), Float(array[2]), Float(array[3]), Float(array[4]))
|
||||
elsif array.size == 4
|
||||
vert = Vector.new(Float(array[1]), Float(array[2]), Float(array[3]), 1.0)
|
||||
else
|
||||
raise
|
||||
end
|
||||
@model.current_object.vertices << vert
|
||||
@model.vertices << vert
|
||||
end
|
||||
|
||||
def add_normal(array)
|
||||
vert = nil
|
||||
if array.size == 5
|
||||
vert = Vector.new(Float(array[1]), Float(array[2]), Float(array[3]), Float(array[4]))
|
||||
elsif array.size == 4
|
||||
vert = Vector.new(Float(array[1]), Float(array[2]), Float(array[3]), 1.0)
|
||||
else
|
||||
raise
|
||||
end
|
||||
@model.current_object.normals << vert
|
||||
@model.normals << vert
|
||||
end
|
||||
|
||||
def add_texture_coordinate(array)
|
||||
texture = nil
|
||||
if array.size == 4
|
||||
texture = Vector.new(Float(array[1]), 1-Float(array[2]), Float(array[3]))
|
||||
elsif array.size == 3
|
||||
texture = Vector.new(Float(array[1]), 1-Float(array[2]), 1.0)
|
||||
else
|
||||
raise
|
||||
end
|
||||
@model.current_object.textures << texture
|
||||
@model.uvs << texture
|
||||
end
|
||||
end
|
||||
end
|
||||
Reference in New Issue
Block a user