cyberarm/i-mic-fps
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Fixed immediate mode lighting, improved-ish modern gl lighting

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Cyberarm
2019-12-09 11:48:54 -06:00
parent ff1d34deec
commit e4333a82b8
6 changed files with 146 additions and 27 deletions
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31
lib/game_objects/light.rb
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@@ -1,26 +1,35 @@
class IMICFPS
class Light
DIRECTIONAL = 0
POINT = 1
attr_reader :light_id
attr_accessor :ambient, :diffuse, :specular, :position, :intensity
def initialize(id:,
ambient: Vector.new(0.5, 0.5, 0.5, 1),
diffuse: Vector.new(1, 0.5, 0, 1), specular: Vector.new(0.2, 0.2, 0.2, 1),
position: Vector.new(0, 0, 0, 0), intensity: 1
attr_accessor :type, :ambient, :diffuse, :specular, :position, :intensity
def initialize(
id:,
type: Light::POINT,
ambient: Vector.new(0.5, 0.5, 0.5, 1),
diffuse: Vector.new(1, 0.5, 0, 1),
specular: Vector.new(0.2, 0.2, 0.2, 1),
position: Vector.new(0, 0, 0, 0),
intensity: 1
)
@light_id = id
@intensity = intensity
@type = type
@ambient = ambient
@diffuse = diffuse
@specular = specular
@position = position
@intensity = intensity
end
def draw
glLightfv(@light_id, GL_AMBIENT, @ambient)
glLightfv(@light_id, GL_DIFFUSE, @diffuse)
glLightfv(@light_id, GL_SPECULAR, @specular)
glLightfv(@light_id, GL_POSITION, @position)
glLightfv(@light_id, GL_AMBIENT, convert(@ambient).pack("f*"))
glLightfv(@light_id, GL_DIFFUSE, convert(@diffuse, true).pack("f*"))
glLightfv(@light_id, GL_SPECULAR, convert(@specular, true).pack("f*"))
glLightfv(@light_id, GL_POSITION, convert(@position).pack("f*"))
glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, 1)
glEnable(GL_LIGHTING)
glEnable(@light_id)
@@ -28,7 +37,7 @@ class IMICFPS
def convert(struct, apply_intensity = false)
if apply_intensity
return struct.to_a.compact.map{|i| i*@intensity}
return struct.to_a.compact.map{ |i| i * @intensity }
else
return struct.to_a.compact
end