VRay Sun, Sky and Physical Camera video tut + Bonus Script!

[^Lele^]

--Copyright 2007 Emanuele Lecchi
--you're free to modify this script as you wish, as long as the above lines remain in place,
--and proper credit is given to the original author (me!) in case of public distribution and/or modification




fn fixthemats dodiffuse doreflection diffCoeff reflCoeff isDiffAbs isReflAbs=
(
undo on (
theMats = getclassinstances vraymtl
for i in theMats do
(
if dodiffuse do (
if i.texmap_diffuse != undefined do (
print "Found Diffuse Map"
if (hasproperty i.texmap_diffuse "*Output*") or (hasproperty i.texmap_diffuse "*RGB_Multiplier*") do
(
print "Found map with Output or RGB_Level Parameters"
if isDiffAbs then (
try (i.texmap_diffuse.RGB_Multiplier =diffCoeff ) catch ()
try (i.texmap_diffuse.output.RGB_Level =diffCoeff ) catch ()
try (i.texmap_diffuse.Texture_Output.RGB_Level =diffCoeff ) catch ()
print ("Multiplied the diffuse Texture RGB Output of the material " + i.name + " to " + diffCoeff as string)
) else (
try (i.texmap_diffuse.RGB_Multiplier *=diffCoeff ) catch ()
try (i.texmap_diffuse.output.RGB_Level *=diffCoeff ) catch ()
try (i.texmap_diffuse.Texture_Output.RGB_Level *=diffCoeff ) catch ()
print ("Multiplied the diffuse Texture RGB Output of the material " + i.name + " times " + diffCoeff as string)
)
)
if (not hasproperty i.texmap_diffuse "*Output*")and (not hasproperty i.texmap_diffuse "*RGB_Multiplier*") do
(
print "About to inset map in output map!"
oldmap=i.texmap_diffuse
i.texmap_diffuse = output map1ldmap name"output_"+oldmap.name)
if isDiffAbs then (
try (i.texmap_diffuse.output.RGB_Level =diffCoeff ) catch ()
try (i.texmap_diffuse.Texture_Output.RGB_Level =diffCoeff ) catch ()
print ("Embedded the diffuse Texture of the material " + i.name + " in an Output Map, and multiplied its RGB Output to " + diffCoeff as string)
) else (
try (i.texmap_diffuse.output.RGB_Level *=diffCoeff ) catch ()
try (i.texmap_diffuse.Texture_Output.RGB_Level *=diffCoeff ) catch ()
print ("Embedded the diffuse Texture of the material " + i.name + " in an Output Map, and multiplied its RGB Output times " + diffCoeff as string)
)
)
)

if (i.texmap_diffuse == undefined) do
(
i.texmap_diffuse = VRayColor name:"VRColor_Diff_"
i.texmap_diffuse.name = uniquename i.texmap_diffuse.name
i.texmap_diffuse.color = i.Diffuse
if isDiffAbs then (
i.texmap_diffuse.rgb_multiplier =diffCoeff
)else (
i.texmap_diffuse.rgb_multiplier *=diffCoeff
)
print ("Changed the Diffuse Colour of the material " + i.name + " with a VRayColor Map, and multiplied to " + diffCoeff as string)
)
)



if doreflection do (
if i.texmap_reflection != undefined do (
print "Found reflection Map"
if (hasproperty i.texmap_reflection "*Output*") or (hasproperty i.texmap_reflection "*RGB_Multiplier*") do
(
print "Found map with Output or RGB_Level Parameters"
if isreflAbs then (
try (i.texmap_reflection.RGB_Multiplier =reflCoeff ) catch ()
try (i.texmap_reflection.output.RGB_Level =reflCoeff ) catch ()
try (i.texmap_reflection.Texture_Output.RGB_Level =reflCoeff ) catch ()
print ("Multiplied the reflection Texture RGB Output of the material " + i.name + " to " + reflCoeff as string)
) else (
try (i.texmap_reflection.RGB_Multiplier *=reflCoeff ) catch ()
try (i.texmap_reflection.output.RGB_Level *=reflCoeff ) catch ()
try (i.texmap_reflection.Texture_Output.RGB_Level *=reflCoeff ) catch ()
print ("Multiplied the reflection Texture RGB Output of the material " + i.name + " times " + reflCoeff as string)
)
)
if (not hasproperty i.texmap_reflection "*Output*")and (not hasproperty i.texmap_reflection "*RGB_Multiplier*") do
(
print "About to inset map in output map!"
oldmap=i.texmap_reflection
i.texmap_reflection = output map1ldmap name"output_"+oldmap.name)
if isreflAbs then (
try (i.texmap_reflection.output.RGB_Level =reflCoeff ) catch ()
try (i.texmap_reflection.Texture_Output.RGB_Level =reflCoeff ) catch ()
print ("Embedded the reflection Texture of the material " + i.name + " in an Output Map, and multiplied its RGB Output to " + reflCoeff as string)
) else (
try (i.texmap_reflection.output.RGB_Level *=reflCoeff ) catch ()
try (i.texmap_reflection.Texture_Output.RGB_Level *=reflCoeff ) catch ()
print ("Embedded the reflection Texture of the material " + i.name + " in an Output Map, and multiplied its RGB Output times " + reflCoeff as string)
)
)
)


if (i.texmap_reflection == undefined ) do
(
if i.reflection != color 0 0 0 do (
i.texmap_reflection = VRayColor name:"VRColor_Refl_"
i.texmap_reflection.name = uniquename i.texmap_reflection.name
i.texmap_reflection.color = i.reflection
if isReflAbs then (
i.texmap_reflection.rgb_multiplier =reflCoeff
)else (
i.texmap_reflection.rgb_multiplier *=reflCoeff
)
print ("Changed the Reflection Colour of the material " + i.name + " with a VRayColor Map, and multiplied it times " + reflCoeff as string)
)
)
)
)
TheMats=#()
)
)





rollout PhMatConvRoll "VRay PhysMat Converter 1.1a" width:304 height:88
(
checkbox chk1 "Affect Diffuse" pos:[8,8] width:104 height:16 checked:true
checkbox chk2 "Affect Reflection" pos:[8,32] width:104 height:16 checked:true
spinner spn1 "Diff. Mult.:" pos:[120,8] width:88 height:16 range:[0,5,0.255] scale:0.001 fieldwidth:40
spinner spn2 "Refl. Mult.:" pos:[120,32] width:88 height:16 range:[0,5,0.255] scale:0.001 fieldwidth:40
button btn1 "Fix The materials!" pos:[8,56] width:288 height:24
checkbox chk3 "Relative" pos:[222,8] width:74 height:16
checkbox chk4 "Relative" pos:[222,32] width:74 height:16


on btn1 pressed do
(
fixthemats chk1.state chk2.state spn1.value spn2.value chk3.state chk4.state
)

on chk3 changed state do(
chk3.caption = if state then "Absolute" else "Relative"
)
on chk4 changed state do(
chk4.caption = if state then "Absolute" else "Relative"
)
)






createdialog PhMatConvRoll


you're welcome.

[artchung]

Lele,
Any other way i can download ur tutorial?? Dropbox??

[^Lele^]

That's actually a good idea.
I'll try on monday from the office, and post the results ^^
Although i think it'd be about time to expand on the concepts and go a bit deeper...

[artchung]

Lele
Did you have a chance to upload ur tutorial in the dropbox? I am so eager to look @ them. Greatly appreciate it. Thanks

[^Lele^]

https://dl.dropboxusercontent.com/u/...hyscam_tut.rar

Nearly got lost when the external hdd died...
Sorry for the delay, took a while to recover.

[Morne]

Thanks Lele, was looking for this again the other day. Also lost my "originals" way back due to HDD...

[^Lele^]

Input any of these, or interpolate between them, for total surface reflectance (ie diff+refl), although with the fresnel term it may be difficult to gauge it exactly.

http://www.google.com/imgres?imgurl=http://marine.rutgers.edu/mrs/education/class/yuri/albedo.gif&imgrefurl=http://marine.rutgers.edu/mrs/education/class/yuri/yuri.html&h=767&w=472&sz=9&tbnid=kpIPSy_Sbc_exM:&t bnh=93&tbnw=57&zoom=1&usg=__4VfvRN1_fN-JbhaeiuG9t0tOVQ0=&docid=RUaODeFJ00v4SM&sa=X&ei=IN2 BUsuZB8GltAano4HYBw&ved=0CC4Q9QEwAQ