glColor4f10f
glColor4f is a function in the OpenGL API used to specify the current RGBA color. The function takes four parameters, each representing a component of the color: red, green, blue, and alpha. The parameters are floating-point numbers, ranging from 0.0 to 1.0, where 0.0 represents the minimum intensity and 1.0 represents the maximum intensity. The alpha component specifies the opacity of the color, with 0.0 being fully transparent and 1.0 being fully opaque. This function is commonly used in the OpenGL fixed-function pipeline to set the color of vertices, which is then interpolated across the primitive being rendered. It is important to note that glColor4f is part of the legacy OpenGL API and has been deprecated in modern OpenGL versions in favor of programmable shaders.