Canvases

Canvas assets are very valuable within the configured workflow. The Canvas works as a layering system on top of the Texture asset. The ability to manipulate properties and assign values within Threekit's Logic system provides a great deal of flexibility.

Properties

Canvas

This Canvas Operator works much like a bucket fill. You can add a solid color over the texture asset.

Color

Defines the color used for color fill in operator. We use a color picker that can use RGB, HSV or HEX inputs.

Opacity

Determines how see-through the layer is.

Numeric Range:

• Input = 1 = Defaulted value. Completely non see-through.

• .1 - .9 = Gets more see-through the lower the value input.

• Input = 0 = Completely see-through.

External ID

Allows an embedder to create an html <canvas> element and have the result of the canvas operations reflected on the external canvas. Conversely, it can allow someone to set up an external canvas and take user input (e.g. freehand drawings) and use that as a texture.

HDR Encoding

The encoding used by the Environment map file. Since the platform optimizes it for you, it should be left to RGBM 16 Encoding. The only potential exception would be if someone were to upload a .png envmap that 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.

It has no effect on renders though. For those we always use the original.

---

Size

Width - Optimize Image, Resize Image

Height - Optimize Image, Resize Image

---

Color Transform

The Color Transform section adjusts texture lightness and darkness values and allows for inverting texture assets. This will override the Color Transform on the base Texture Asset Properties.

Invert

Inverts colors of texture asset, producing a negative.

Brightness

An additive like factor that increased overall brightness of the image. Use a negative number to darken the texture asset.

Gain

Multiply effect that adjusts values of texture asset.

Numeric Range:

• Input = 1 = No effect. Defaulted value

• Input > 1 = Multiplying lightening effect

• Input < 1 = Multiplying darkening effect

Gain Pivot

Changes starting value of Gain attribute.

Numeric Range:

• Input = 0 = Defaulted value. Will target highlights.

• Input > 1 = The further from 0, the more it clips values making the value range smaller and more contrasted.

• Input < 1 The further from 0, the more it expands 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. This will override the UV Transform on the base Texture Asset Properties.

U Offset

Control from where texture is placed in U direction or horizontally.

Numeric Range:

• Input = 0 = Defaulted value.

• Input > 0 = Moves texture asset right.

V Offset

Control from where texture is placed in V direction or vertically.

Numeric Range:

• Input = 0 = Defaulted value.

• Input > 0 = Moves texture asset right.

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

U Tile

Value input for Scale Mode that determines Left/Right or Horizontal Tiling

V Tile

Value input for Scale Mode that determines Top/Bottom or Vertical Tiling