# mental ray scene file from "Writing mental ray shaders"
# http://www.writingshaders.com/scene_catalog.html

verbose on

link "lambert.so"
$include "lambert.mi"
link "shadow_breakpoint_scale.so"
$include "shadow_breakpoint_scale.mi"
link "point_light_shadow.so"
$include "point_light_shadow.mi"
link "texture_uv.so"
$include "texture_uv.mi"
link "transparent.so"
$include "transparent.mi"

options "opt"
    object space
    globillum off
    face both
    trace depth 2 2 2
    samples 2 2
    contrast .1 .1 .1
end options
 

light "white_light"
    "point_light_shadow" ("light_color" 1.1 1.1 1.1)
    origin 0 7 -9
end light

instance "light_instance" 
    "white_light" 
end instance

material "gray" opaque
    "lambert" (
        "diffuse" 1 1 1,
        "lights" ["light_instance"]
    )
end material


color texture "fourgrid" "octatile.tif"

#color texture "colorchart" "color_chart.tif"

color texture "colorchart" "colorstrip.tif"

filter 8 color texture "diamond" "gray_diamond.map"

#color texture "diamond" "diamond.tif"

shader "diamondgrid"
    "texture_uv" (
       "tex" "diamond",
       "u_scale" 400,
       "v_scale" 400
    )

material "diamondtile" opaque
    "lambert" (
        "diffuse" = "diamondgrid",
        "lights" ["light_instance"]
    )
end material


shader "grid"
    "texture_uv" (
	"tex" "colorchart",
	"u_scale" 1,
	"v_scale" 1
    )


camera "cam"
    output "rgba" "tif"
        "shadows_C1.tif"
    focal 65
    aperture 33.3
    aspect 1.66667
    resolution 500 300
end camera

instance "camera-instance" "cam"
    transform 
        1.0 0.0 0.0 0.0 
        0.0 0.945151 0.326633 0.0 
        0.0 -0.326633 0.945151 0.0 
        0.0 0.330803 -7.080294 1.0 
end instance

instance "cube-1"
    geometry "bw_cube" ("name" "cube")
    material "diamondtile"
    transform 
        0.010 0.0 0.0 0.0 
        0.0 100.0 0.0 0.0 
        0.0 0.0 0.010 0.0 
        0.0 55.0 0.0 1.0 
    tag 1
    globillum on
    globillum 3
end instance

material "shadow_transparent_0"
    "transparent" (
        "color" = "grid",
        "transparency" 0.00 0.00 0.00
    )
    shadow
        "shadow_breakpoint_scale" (
            "color" = "grid",
            "transparency" 0.00 0.00 0.00,
            "breakpoint" .25,
            "center" .25,
            "extent" .25
        )
end material

instance "square-1"
    geometry "bw_square" ()
    material "shadow_transparent_0"
    transform 
        9.708738 0.0 0.0 0.0 
        0.0 0.861085 0.0 0.0 
        0.0 0.0 1.0 0.0 
        10.970874 -0.086109 0.0 1.0 
    tag 2
    globillum on
    globillum 3
end instance

material "shadow_transparent_5"
    "transparent" (
        "color" = "grid",
        "transparency" 0.05 0.05 0.05
    )
    shadow
        "shadow_breakpoint_scale" (
            "color" = "grid",
            "transparency" 0.05 0.05 0.05,
            "breakpoint" .25,
            "center" .25,
            "extent" .25
        )
end material

instance "square-2"
    geometry "bw_square" ()
    material "shadow_transparent_5"
    transform 
        9.708738 0.0 0.0 0.0 
        0.0 0.861085 0.0 0.0 
        0.0 0.0 1.0 0.0 
        9.873786 -0.086109 0.0 1.0 
    tag 3
    globillum on
    globillum 3
end instance

material "shadow_transparent_10"
    "transparent" (
        "color" = "grid",
        "transparency" 0.10 0.10 0.10
    )
    shadow
        "shadow_breakpoint_scale" (
            "color" = "grid",
            "transparency" 0.10 0.10 0.10,
            "breakpoint" .25,
            "center" .25,
            "extent" .25
        )
end material

instance "square-3"
    geometry "bw_square" ()
    material "shadow_transparent_10"
    transform 
        9.708738 0.0 0.0 0.0 
        0.0 0.861085 0.0 0.0 
        0.0 0.0 1.0 0.0 
        8.776699 -0.086109 0.0 1.0 
    tag 4
    globillum on
    globillum 3
end instance

material "shadow_transparent_15"
    "transparent" (
        "color" = "grid",
        "transparency" 0.15 0.15 0.15
    )
    shadow
        "shadow_breakpoint_scale" (
            "color" = "grid",
            "transparency" 0.15 0.15 0