Caustics Effect
written by LAVISH


Remarks:
This tutorial works in SOFTIMAGE|XSI 1.5 and above only

ÀÌTutorialÀ» µû¶óÇÔÀ¸·Î ÀÌ ±×¸²À» ¾òÀ» ¼ö ÀÖ´Ù.

ÀÌ TutorialÀº ±âº»ÀûÀÎ Caustics ¸¸À» ¼³¸íÇÑ °Í ÀÌ´Ù.
ÀÌ Æ©Å丮¾óÀº ½ÉµµÀÖ´Â ¹°¸®Àû ¶óÀÌÆÃÀ» °í·ÁÇÑ °ÍÀº ¾Æ´Ï´Ù.
Á» ´õ ½ÉµµÀÖ´Â ½ÇÇè°ú Å×½ºÆ®´Â Çö½ÇÀûÀÎ ¶óÀÌÆ®¸¦ »êÃâÇÒ ¼ö ÀÖÀ» °ÍÀÌ´Ù.
The RENDER module (keyboard shortcut 3)


Cauctics Effect
To create a Cartoon shader effect



¸ÕÀú ±×¸²°ú °°ÀÌ Object¸¦ ¸¸µé°í Spot light¸¦ Çϳª »ý¼ºÇÑ´Ù.
²À,Cube°¡ ¾Æ´Ï¶óµµ »ó°ü¾ø´Ù.

 



ÀÌÁ¦ Cube ¿¡ À¯¸®Áú°¨À» ¸¸µç´Ù.
get-material->phong
under transparency/reflection tab -> transparency to 0.6

( CTRLÀ»ÇÏ°í µå·¡±×¸¦ Çϸé 3 sliders ¸¦ µ¿½Ã¿¡ ¿òÁ÷ÀÏ ¼ö ÀÖ´Ù.)



XSI¿¡´Â default light°¡ Ç×»ó Á¸ÀçÇÑ´Ù.
¸ÕÀú default light¸¦ ¾ø¾Ö°í ambiance value¸¦ 0À¸·Î ÇÑ´Ù.


Configure the light:

¸ÕÀú Spot light ¸¦ ¼±ÅÃÇϰí modify>shader¸¦ Ŭ¸¯ÇÑ´Ù. ( White spot ÀÇintensity ¸¦ 2·Î ÇÑ´Ù.)
Photon tab À» Å©¸¯Çϰí Caustic checkbox ¿Í values ¸¦ ¾Æ·¡¿Í °°ÀÌ ÁØ´Ù.
Energy : RGB 0.7
Energy Intensity : 12000
Number of emitted photons Caustic : 2400


Configure the objects:

ÀÌÁ¨ Cube ¿Í Ground ¸¦ ¼±ÅÃÇÑ´Ù.

Visibility property ¸¦ ¿¬´Ù.(¿À¸¥ÂÊ Selection panel¿¡¼­Visibilit¸¦ ¼±ÅÃÇÑ´Ù.)
¾Æ·¡caustic tabÀÇ Ã¼Å©¹Ú½º¿¡¼­ Transmitters¿Í Receivers¸¦ üũÇÑ´Ù.


Configure the render options:

Render¿¡¼­ ¾Æ·¡ ±×¸²°ú °°ÀÌ Caustics¸¦ ¼³Á¤ÇÑ´Ù.


À̹ø¿£ ±¼Àý°ªÀ» ¼³Á¤ÇÏÀÚ.Cube_material ¿¡¼­
under transparency/reflection tab ->
refraction index of 1.4

ÀÌ·¸°Ô Çϸé, ¾Æ·¡ ±×¸²Ã³·³ °á°ú¸¦ ¾òÀ» °Í ÀÌ´Ù.


ÀÌÁ¦, Á» ´õ ¸®¾óÇÑ ±×¸²ÀÚ¸¦ ¸¸µé¾î º¸ÀÚ.
Spot light
¸¦ ¼±ÅÃÇϰí area ÅÇÀ» Ŭ¸¯Çؼ­
values ¸¦ 6À¸·Î ¼³Á¤ ÇÑ´Ù.
ÀÌÁ¨ ±×¸²°ú °°Àº °á°ú¸¦ ¾òÀ» ¼ö ÀÖÀ» °Í ÀÌ´Ù.



2001-03-27
website: www.lavish01.com
modified by: LAVISH