.mtl
filesvar mtl_src = """
# Green material with low reflections
newmtl GreenMaterial
Ns 96.078431
Ka 0.000000 0.000000 0.000000
Kd 0.027186 0.180434 0.012088
Ks 0.500000 0.500000 0.500000
Ni 1.000000
d 1.000000
illum 2
"""
var parser = new MtlFileParser(mtl_src)
var name_to_mtls = parser.parse
assert name_to_mtls.keys.join == "GreenMaterial"
gamnit :: MtlFileParser :: defaultinit
gamnit $ MtlFileParser :: SELF
Type of this instance, automatically specialized in every classcore :: Object :: class_factory
Implementation used byget_class
to create the specific class.
parser_base :: StringProcessor :: current_location
Gives the current location in thesrc
gamnit :: MtlFileParser :: defaultinit
core :: Object :: defaultinit
parser_base :: StringProcessor :: hot_location
Returns the current location as aLocation
object
parser_base :: StringProcessor :: ignore_until
Reads characters until patterns
is found
parser_base :: StringProcessor :: ignore_until_whitespace
Ignores any printable character until a whitespace is encounteredparser_base :: StringProcessor :: ignore_until_whitespace_or_comment
Advancepos
until a whitespace or #
is encountered
parser_base :: StringProcessor :: ignore_whitespaces
Advances insrc
until a non-whitespace character is encountered
core :: Object :: is_same_instance
Return true ifself
and other
are the same instance (i.e. same identity).
core :: Object :: is_same_serialized
Isself
the same as other
in a serialization context?
core :: Object :: is_same_type
Return true ifself
and other
have the same dynamic type.
parser_base :: StringProcessor :: line_offset
Offset in the current lineparser_base :: StringProcessor :: line_start
Position at which current line startedparser_base :: StringProcessor :: line_start=
Position at which current line startedcore :: Object :: output_class_name
Display class name on stdout (debug only).parser_base :: StringProcessor :: read_number
Read a token and parse it as aFloat
parser_base :: StringProcessor :: read_token
Read a single token after skipping preceding whitespacesparser_base :: StringProcessor :: read_until_eol_or_comment
Advancepos
until the next end of line or a #
parser_base :: StringProcessor :: read_vec3
Read 2 or 3 numbers and return them as aVec3
parser_base :: StringProcessor :: read_vec4
Read 3 or 4 numbers and return them as aVec4
parser_base :: StringProcessor :: skip_eol
Advancepos
to skip the next end of line
parser_base :: StringProcessor
Basic facilities for common parser operations on String sources
# Parser of `.mtl` files
#
# ~~~
# var mtl_src = """
# # Green material with low reflections
# newmtl GreenMaterial
# Ns 96.078431
# Ka 0.000000 0.000000 0.000000
# Kd 0.027186 0.180434 0.012088
# Ks 0.500000 0.500000 0.500000
# Ni 1.000000
# d 1.000000
# illum 2
# """
#
# var parser = new MtlFileParser(mtl_src)
# var name_to_mtls = parser.parse
# assert name_to_mtls.keys.join == "GreenMaterial"
# ~~~
class MtlFileParser
super StringProcessor
# Read and parse source and return all materials organized by their names
fun parse: Map[String, MtlDef]
do
var mat_lib = new Map[String, MtlDef]
var material: nullable MtlDef = null
while not eof do
var token = read_token
if token == "newmtl" then
var name = read_until_eol_or_comment
material = new MtlDef(name)
mat_lib[name] = material
else if material != null then
if token == "Ka" then
material.ambient = read_vec3
else if token == "Kd" then
material.diffuse = read_vec3
else if token == "Ks" then
material.specular = read_vec3
else if token == "d" then
material.dissolved = read_number
else if token == "Tr" then
material.dissolved = 1.0 - read_number
else if token == "illum" then
material.illumination_model = read_number.to_i
else if token == "map_Ka" then
material.map_ambient = read_until_eol_or_comment
else if token == "map_Kd" then
material.map_diffuse = read_until_eol_or_comment
else if token == "map_Bump" then
material.map_bump = read_until_eol_or_comment
else if token == "map_Ks" then
material.map_specular = read_until_eol_or_comment
else if token == "map_Ns" then
material.map_exponent = read_until_eol_or_comment
# TODO other line type headers
else if token == "Ns" then
else if token == "Ni" then
else if token == "sharpness" then
else if token == "bump" then
end
end
skip_eol
end
return mat_lib
end
end
lib/gamnit/model_parsers/mtl.nit:20,1--90,3