# TKE_Color

## Opcode

ASCII | (double quote)
Hexadecimal | 22
Decimal | 34

## Operands

Variable geometry, Variable channels,
[Variable diffuse], [Variable specular],
[Variable mirror], [Variable transmission], [
Variable emission], [Float gloss], [Float index],
[Variable environment], [Variable bump]

Note: all of the optional Variable fields are of this format:

Byte length,
if length = 0:
(3)xByte rgb
if length > 0:
(length)xByte string

geometry | bitmask of affected geometry. 1 byte, if high bit set one or more bytes follow. bit definitions are here
channels | color components of specified geometry types. 1 byte, if high bit set a second byte follows
diffuse | basic color of the objects
specular | color modulation applied to directly reflected lights
mirror | color modulation applied to indirectly reflected light, such as form an environment map or during ray-tracing
transmission | color modulation applied to light passing through the object
emission | color supplied directly by the object
gloss | shininess of the object
index | index of refraction of the object (may be useful with ray-tracing)
environment | environment map applied to the object
bump | bump map applied to the object

## Notes

This is the color which will apply to geometry in the currently opened segment/geometry. For detailed information on what this means in the HOOPS/3dGS refer to the `Set_Color` specification in the 3dGS Reference Manual.

Most color components may be either a simple RGB triplet (values scaled from 0-255) or a string description (such as “light blue” or “brick”).

## Channel bits

0001 | Diffuse
0002 | Specular
0004 | Mirror
0008 | Transmission
0010 | Emission
0020 | Gloss
0040 | Index
0080 | indicates additional byte required
0100 | Environment
0200 | Bump

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