ComfyUI Node: vec4

vec4:

The vec4 node is designed to create a four-dimensional vector, commonly used in graphics programming and shader development. This node allows you to define a vector with four components (x, y, z, w), which can represent various data types such as colors (including alpha channel), coordinates, or other multi-dimensional data. By providing a simple interface to input these four values, the vec4 node helps streamline the process of working with complex data structures in GLSL (OpenGL Shading Language) shaders. This node is particularly useful for AI artists who need to manipulate and pass vector data within shader programs, enabling more sophisticated visual effects and transformations.

vec4 Input Parameters:

x

The x parameter represents the first component of the four-dimensional vector. It is a floating-point value that can be used to define the horizontal position, red color intensity, or any other relevant data depending on the context. The default value is 0.0, and it can be adjusted in increments of 0.01.

y

The y parameter represents the second component of the four-dimensional vector. Similar to the x parameter, it is a floating-point value that can be used to define the vertical position, green color intensity, or other relevant data. The default value is 0.0, and it can be adjusted in increments of 0.01.

z

The z parameter represents the third component of the four-dimensional vector. This floating-point value can be used to define depth, blue color intensity, or other relevant data. The default value is 0.0, and it can be adjusted in increments of 0.01.

w

The w parameter represents the fourth component of the four-dimensional vector. It is a floating-point value that can be used to define the alpha channel (transparency), a fourth coordinate, or other relevant data. The default value is 0.0, and it can be adjusted in increments of 0.01.

vec4 Output Parameters:

vec3

The vec3 output parameter represents the four-dimensional vector created by the node. This vector is a tuple containing the four components (x, y, z, w) that you have specified. It can be used in various shader operations to manipulate colors, coordinates, or other multi-dimensional data, providing a versatile tool for complex visual effects and transformations.

vec4 Usage Tips:

• Use the vec4 node to define colors with transparency by setting the w parameter to a value between 0.0 (fully transparent) and 1.0 (fully opaque).
• Adjust the x, y, and z parameters to manipulate 3D coordinates or RGB color values, depending on your specific use case.

vec4 Common Errors and Solutions:

Invalid value for parameter x

• Explanation: The value provided for the x parameter is not a valid floating-point number.
• Solution: Ensure that the x parameter is set to a valid floating-point number, such as 0.0, 1.0, or any other decimal value.

Invalid value for parameter y

• Explanation: The value provided for the y parameter is not a valid floating-point number.
• Solution: Ensure that the y parameter is set to a valid floating-point number, such as 0.0, 1.0, or any other decimal value.

Invalid value for parameter z

• Explanation: The value provided for the z parameter is not a valid floating-point number.
• Solution: Ensure that the z parameter is set to a valid floating-point number, such as 0.0, 1.0, or any other decimal value.

Invalid value for parameter w

• Explanation: The value provided for the w parameter is not a valid floating-point number.
• Solution: Ensure that the w parameter is set to a valid floating-point number, such as 0.0, 1.0, or any other decimal value.