This shader changes the colors of the texture in fragment shader. For each color channel, you can choose to Switch, Add, Subtract, Multiply or Divide it's value with the R, G, B or A channel's value. After these calculations are done, you can additionally choose to Add, Subtract, Multiply or Divide the result with another color. You can also choose whether calculations on one color channel affect calculations on another color channel. This shader is meant to be used as a debugging shader, so for example, if you wanna see what a certain model would look like with different colored textures, you can use this shader to test out different color schemes, rather than repainting and attaching a new texture for a different color scheme. That being said, the shader can be used as is, to change the color of your textures, if you wish to do so.

• Texture: Texture to use.
• Use Color Change?: Should color change operations be done or not? If false, all operations are ignored, and the texture is not affected.
• Calculate Channels Independently: If true, the initial color is stored in a temp buffer, so that calculations done on one channel won't affect calculations done on another channel. If false, the initial color variable is used as is in the calculations. Color channel calculations are done in the following order - R, G, B then A. So whether the color channels are calculated independently or not, affects the result. This will become moer clear in the examples.
• Red Channel Opeator: Operator to use when doing calculations on the R channel.
• Red Channel Operand: Operand to use when doing calculations on the R channel.
• Green Channel Opeator: Operator to use when doing calculations on the G channel.
• Green Channel Operand: Operand to use when doing calculations on the G channel.
• Blue Channel Opeator: Operator to use when doing calculations on the B channel.
• Blue Channel Operand: Operand to use when doing calculations on the B channel.
• Alpha Channel Opeator: Operator to use when doing calculations on the A channel.
• Alpha Channel Operand: Operand to use when doing calculations on the A channel.
• Final Color Opeator: Operator to use when doing calculations on the color produced by previous calculations.
• Final Color Operand: Operand to use when doing calculations on the color produced by previous calculations.

Hopefully some examples will help you better understand how to use the properties in the shader. However, if you would rather just experiment by changing options randomly, that works perfectly fine too, because the whole point if this shader is to see what new color schemes you can come up with.

Example 1: A simpler example to help you understand the operations and how the values change. In this example the texture has only one color, Red, which in RGB would be (1,0,0). On the left you see the original texture color (red). On the right you see the resulting color after color changing operations (green). Let's take a look at the properties: Red Channel Operator: Subtract Red Channel Operand: R This means the value of R will be subtracted by itself. Green Channel Operator: Add Green Channel Operand: R This means the value of R will be added to the value of G. Blue Channel Operator: Keep Blue Channel Operand: B Since Blue Channel Operator is set to Keep, Blue channel keeps it's value, and no calculation is done. Same for Alpha channel. Final Color Operator: Multiply Final Color Operand: White (1,1,1,1) This leaves the color unaffected because is basically multiplying the values by 1.

The calculation would then go like so... Initial color RGB value is (1,0,0), which is Red.

R = R-R = 1-1 = 0

G = G+R = 0+1 = 1

B = 0

Thus, the resulting color is Green (0,1,0).

Example 2: Now, notice that Calculate Channels Independently is set to True. Let's set it to false. This is the result.

Here's a breakdown of the calculation:

R = R-R = 1-1 = 0

G = G+R = 0+0 = 0

B = 0

The resulting color is Black (0,0,0). Notice how the calculation done on the R channel affected the later calculation done on the G channel? That's what Calculate Channels Independently does. The channels are calculated in the order R-G-B-A, so if Calculate Channels Independently is set to False, calculations done on R, will affect later calculations, if the value of R is being used in them.

Example 3: In this example I tried using the shader on the materials attached to Unity-chan. I changed some of the values for the body and hair materials. Here are the values, along with the results:

You really don't have to see the colors as numbers, and in most cases you won't have to. Just experiment with different values and see what results you get. Examples 1 and 2 visualize the colors as numbers just to help you understand how the operations affect the colors.