glBlendEquation

glBlendEquation is a function in the OpenGL API that specifies the equation used for both the RGB blend equation and the alpha blend equation. It is part of the OpenGL blending functionality, which allows for the combination of colors from multiple sources to produce a final color.

The function takes a single parameter, which specifies the blend equation to be used. The available blend equations include GL_FUNC_ADD, GL_FUNC_SUBTRACT, GL_FUNC_REVERSE_SUBTRACT, and GL_MIN and GL_MAX. Each of these equations defines a different way to combine the source and destination colors.

The RGB blend equation is used to combine the red, green, and blue components of the source and destination colors, while the alpha blend equation is used to combine the alpha components. The glBlendEquation function allows these equations to be set independently, providing flexibility in how colors are blended.

The glBlendEquation function is typically used in conjunction with other blending functions, such as glBlendFunc, which specifies the blending factors for the source and destination colors. Together, these functions allow for complex blending operations to be performed, which can be used to achieve various visual effects in computer graphics applications.