Tintindexes

Tintindexes are used in minecraft's model json format to assign specific hardcoded tinting functions to specific quads of block and item models. Currently, these functions are assigned to specific block instances, and can only be created or replaced via mods. Some examples of tint indexes from vanilla minecraft include coloring grass and other plants based on biome, or determining how red redstone dust is based on its power level, or coloring spawn eggs items based on the color values assigned to their respective entity type.

More Red uses several custom tinting functions for several of its blocks.

Logic Plates

Logic plate blocks such as the AND Gate use a tinting function that tints different overlays of the model based on their blockstate properties. These blocks have three blockstate properties, input_a, input_b, and input_c, representing whether the given input sides (located 90, 180, and 270 degrees clockwise from the output side, respectively, while observing the top of the block) are receiving power. Logic plates with two inputs generally only use inputs A and C, while logic plates with one inputs generally only use input B.

If the tintindex of the given quad is less than 1, no tinting will be applied to the quad (-1 is the default when a tintindex is unspecified, and is never tinted; 0 is reserved for block particles, which are not tinted by this function).

If the tintindex of the quad is 1 or greater, then that tintindex indicates which of the following functions is to be used, given boolean inputs A, B, and C:

*SET LATCH and UNSET LATCH use the internal state of latches in addition to the input states

If the function evaluates to TRUE, then the quad's colors are not tinted. If the function evaluates to FALSE, then the quad's colors are multiplied by #560000 (darkening the red and removing any green or blue).

Items of blocks that use this tinting function are tinted as if all of the inputs are false.

Red Alloy Wire

Red Alloy Wires tint different sections of their model to represent how much redstone power that segment of the wire is currently charged with.

As the wires' json models are used to generate many baked models in different orientations, the Rotate Tints model loader is used to denote which segment of the wire the original model json's quads belong to (so that it can be determined which segment of the block entity to check the power of when tinting the block).

For the block, if the tintindex of a quad is less than 0 or greater than 18, then no tinting is applied to the quad's colors. If the tintindex is 0 (the tintindex used for particles), then the quad's colors are multiplied by the RGB color #560000.

If the tint index is in the range [1,18] inclusive, then the quad's red channel is multiplied by a hexidecimal color in the range [#56, #FF], and the quad's green and blue channels are multiplied by 0. If the tint index is in the range [1,6] inclusive, then the color depends on the power stored in the wire block's block entity for the respective interior face (the quad is part of the wire segment attached in that direction). If the tint index is in the range [7,18] inclusive, then the color depends on the average of the power stored in two adjacent wire blocks (the quad is part of a convex edge connecting two wire blocks).

Because the wire model defined by the json is effectively copied and rotated into different positions by the wire model loader, only a small number of wire models need to be specified; these declare the tint index of the appropriate wire segment as depicted in the model json. Due to this, only tint indexes 1, 5, and 9 are currently used in the block model jsons.

The red alloy wire's item uses the unlit #560000 tint if the tintindex >= 0, and applies no tint otherwise.

Redwire Posts

Redwire Posts and their items use a tinting function that applies only to tintindex 1; quads assigned tintindex 1 have their green and blue channels multiplied by 0, and their red channel multiplied by a hexidecimal color in the range #56, #FF, depending on the value of the power property of the rendered blockstate.

The following blocks use this tinting function:

• Redwire Junction
• Redwire Post
• Redwire Relay

The items of these blocks apply the tinting function as if the block was unpowered.

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