POV-Ray : Documentation : 2.8.10.5 Normal
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2.8.10.5 Normal

Simulate the visual or tactile surface characteristics of a texture:
NORMAL:
Jump to SDL
normal { NORMAL_BODY }
NORMAL_BODY:
[NORMAL_IDENTIFIER] [NORMAL_TYPE] [NORMAL_MODIFIERS]
NORMAL_TYPE:
NORMAL_PATTERN | BUMP_MAP
NORMAL_PATTERN:
NORMAL_LIST_PATTERN |
MAP_PATTERN [F_DEPTH] [SLOPE_MAP] |
MAP_PATTERN NORMAL_MAP
NORMAL_LIST_PATTERN:
brick NORMAL, NORMAL [BRICK_ITEMS] | brick [F_DEPTH] [BRICK_ITEMS] |
checker NORMAL, NORMAL | checker [F_DEPTH] |
hexagon NORMAL, NORMAL, NORMAL | hexagon [F_DEPTH] |
object { LIST_OBJECT NORMAL, NORMAL } | object { LIST_OBJECT } [F_DEPTH]
NORMAL_MAP:
normal_map { NORMAL_MAP_BODY } [BLEND_MAP_MODIFIERS]
NORMAL_MAP_BODY:
NORMAL_MAP_IDENTIFIER | NORMAL_MAP_ENTRY...
There may be from 2 to 256 map entries.
NORMAL_MAP_ENTRY:
[ FLOAT NORMAL_BODY ]
The brackets here are part of the map entry.
SLOPE_MAP:
slope_map { SLOPE_MAP_BODY } [BLEND_MAP_MODIFIERS]
SLOPE_MAP_BODY:
SLOPE_MAP_IDENTIFIER | SLOPE_MAP_ENTRY...
There may be from 2 to 256 map entries.
SLOPE_MAP_ENTRY:
[ FLOAT, < F_HEIGHT, F_SLOPE > ]
The brackets here are part of the map entry.
BUMP_MAP:
bump_map { BITMAP_IMAGE [BUMP_MAP_MODIFIERS] }
BUMP_MAP_MODIFIERS:
[BITMAP_MODIFIERS] & [BUMP_METHOD] & [bump_size FLOAT]
BUMP_METHOD:
use_index | use_color | use_colour
NORMAL_MODIFIERS:
[PATTERN_MODIFIERS] & [bump_size FLOAT] & [no_bump_scale [BOOL]] & [accuracy FLOAT]

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