Pixel-Composer/scripts/__vertex_function/__vertex_function.gml

globalvar MATRIX_IDENTITY;

MATRIX_IDENTITY = matrix_build_identity();

#region format
	vertex_format_begin();
	vertex_format_add_position();
	vertex_format_add_color();
	global.format_pc = vertex_format_end();
#endregion

function vertex_add_pt(buffer, position, texture) {
	vertex_position_3d(buffer, position[0], position[1], position[2]);
	vertex_texcoord(buffer, texture[0], texture[1]);
}

function vertex_add_pnt(buffer, position, normal, texture) {
	vertex_position_3d(buffer, position[0], position[1], position[2]);
	vertex_normal(buffer, normal[0], normal[1], normal[2]);
	vertex_texcoord(buffer, texture[0], texture[1]);
}

function vertex_add_pntc(buffer, position, normal, texture, color = c_white, alpha = 1) {
	vertex_position_3d(buffer, position[0], position[1], position[2]);
	vertex_normal(buffer, normal[0], normal[1], normal[2]);
	vertex_texcoord(buffer, texture[0], texture[1]);
	vertex_color(buffer, color, alpha);
}

function vertex_add_2pc(buffer, _x, _y, color, alpha = 1) {
	vertex_position(buffer, _x, _y);
	vertex_color(buffer, color, alpha);
}