# Textures ## Image The Image Section is used to control formats, compression and HDR encoding methods. ### **WebGL Image** Choses which version of the image is used for rendering on the web.

Original	The actual image that was uploaded by the user.
WebGL	An optimized (downsized, reformatted) version specifically for the web.
Renderer	Usually not used, an optimized version of the environment map for renderers.

Default	Leaves the texture asset as uploaded format
PNG	Converts format to PNG
JPG	Converts format to JPG

### **HDR Encoding** The encoding used by the Environment map file. The platform will optimize upon import, thus, it should be left to RGBM 16 Encoding. The only potential exception would be if a .png envmap was uploaded which was optimized to another of the formats listed. When an image asset is uploaded, the original version of that image is stored, and if it's too big or in a non-consumable format, a smaller, reformatted image is automatically created. That is when "original" vs "webgl" must be considered. This has no effect on renders as the original will always be used.

Linear	Gamma value of 1. Majority of values would be perceptually close to white
sRBG	Stores color in RGB with gamma 2.2
RGBE/Radiance	Stores color in Radiance RGB
Log LUV	Stores color in luminance and chromaticity (HS)
RGBM 7
RGBM 16	Stores color in RGB and a multiplier(M) in the alpha channel.


Linear	Gamma value of 1. Majority of values would be perceptually close to white
sRBG	Stores color in RGB with gamma 2.2
RGBE/Radiance	Stores color in Radiance RGB
Log LUV	Stores color in luminance and chromaticity (HS)
RGBM 7
RGBM 16	Stores color in RGB and a multiplier(M) in the alpha channel.

### Color Transform The Color Transform section adjusts texture lightness and darkness values and allows for inverting texture assets.


Invert	Inverts colors of texture asset, producing a negative.
Brightness	An additive factor that increases overall brightness of the image. Use a negative number to darken the texture asset.
Gain	Multiplicative effect that adjusts values of texture asset. Numeric Range: = 1 = No effect. Defaulted value < 1 = Multiplying lightening effect > 1 = Multiplying darkening effect
Gain Pivot	Changes starting value of Gain attribute. Numeric Range: = 0 = Defaulted value. Targets highlights. < 1 = The further from 0, the more it clips values, making the value range smaller and more contrasted. > 1 = The further from 0, the more it expands making the value range and makes the image more washed out.

## UV Transform The UV Transform section adjusts placement within the Texture Asset space.\ Texture assets have their own texture coordinates, U and V. These are used to describe width and height of texture assets. Texture coordinates are measured in scale of 0 to 1, with 0 and 1 at opposite sides of the texture. ### **U Offset** Control from where texture is placed in U direction or horizontally. Numeric Range: * \= 0 = Defaulted value. * < 0 = Moves texture asset right. * \> 0 = Moves texture asset left. ### **V Offset** Control from where texture is placed in V direction or vertically. Numeric Range: * \= 0 = Defaulted value. * < 0 = Moves texture asset right. * \> 0 = Moves texture asset left. ### **U Wrap Style**

None	There is no repeat on the texture.
Wrap	The texture asset repeats.
Mirror	The texture asset repeats, but every repeat is flipped horizontally from the last.

### **V Wrap Style**

None	There is no repeat on the texture.
Wrap	The texture asset repeats.
Mirror	The texture asset repeats, but every repeat is flipped vertically from the last.

### **Scale Mode**

Tiling	The UV Tiling values determine amount of texture repeat in 0 to 1 space
Scale	The UV Tiling values multiples texture asset starting from bottom left corner

### Channels The channel options lets a user flip Red and Green channels. This can be used most commonly to correct normal maps with a different Y direction. We want normal maps saved for OpenGL(Y+). Red/Green Red/Green controls are for anisotropy and normal maps only.


Red Channel Flip	Invert Red Channel on texture asset.
Green Channel Flip	Invert Green Channel on texture asset.
Swap Red/Green Channel	Swap Red/Green Channel on texture asset.