42cursus_04_minirt's Introduction

42cursus_04_miniRT

study about ray tracing

https://velog.io/@zhy2on/%EB%AF%B8%EB%8B%88%EC%95%8C%ED%8B%B0-ldvma6zf

rt file format

common ground

Type	mean
`A`	ambient light	-	`ratio`	`color`
`L`	light	`position`	`ratio`	`color`
`C`	camera	`position`	`normal vector`	`fov`
`#`	comment	-	-	-

mandatory

Figure	position	normal vector	radius	height	color
`pl`	✅	✅	-	-	🎨
`sp`	✅	-	✅	-	🎨
`cy`	✅	✅	✅	✅	🎨

bonus

Type	mean
`R`	resolution	width	height	-
`tx`	texture	texture id	image map file path	normal map file path

Figure	position	normal vector	radius / theta	height	specular power	checkerboard w,h	color	texture
`pl`	✅	✅	-	-	🪞	♟	🎨	tx id
`sp`	✅	-	`R`	-	🪞	♟	🎨	tx id
`cy`	✅	✅	`R`	✅	🪞	♟	🎨	tx id
`con`	✅	✅	`Th`	✅	🪞	♟	🎨	tx id

example

A  0.5   255,255,255
L  10,1,5   0.4   255,255,255
C  19.5,0,10   0,1,-1   40
# C  19.4,10,10   0,0,-1   40

# | position | normal vector | radius | height | color |
pl 0,0,0         0,0,1                           255,255,255
sp 18.8,10,0.6                  1.2              255,125,0
sp 20,10,0.6                    1.2              123,200,93
sp 21.2,10,0.6                  1.2              238,250,110
cy 17.6,10,1.3   0,0,-1         1.2      1.3     255,150,200

# bonus ex
R  800 800
A  0.5   255,255,255
L  10,1,5   0.4   255,255,255
C  20,0,10   0,1,-1   40
C  20,10,5   0,0,-1   80

tx	earth	scenes/textures/earth_no_clouds_8k.xpm		scenes/textures/earth_normal.xpm
tx	rock	scenes/textures/rock.xpm		scenes/textures/rock_normal.xpm

# |   position  | normal vector | r / th | height | spec power | checker w,h |    color     | texture |
pl   0,0,0          0,0,1                             100           0,0        255,255,255
sp   18.8,10,0.6                   1.2                100           0,0        255,125,0
sp   20,10,0.6                     1.2                100           0,0        123,200,93
sp   21.2,10,0.6                   1.2                100           0,0        238,250,110
cy   17.6,10,1.3    0,0,-1         1.2      1.3       100           0,0        255,150,200
con  22.3,10,1.3    0,0,-1         30       1.3       100           0,0        0,176,240

42cursus_04_minirt's People