// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
//============================================================
//
//  offset_sat.json: Applies saturation to an image.
//  
//  Additionally, takes only a portion of the image, as
//  this instance is intended for the right-hand pillarbox
//  when displaying 3:4 content on a 16:9 screen.
//
//============================================================
{
    "blend": {
    	"equation": "add",
    	"srcColor": "srcalpha",
    	"dstColor": "1-srcalpha",
    	"srcAlpha": "srcalpha",
    	"dstAlpha": "1-srcalpha"
    },
    "depth": {
    	"function": "always"
    },
    "cull": { "mode": "none" },
    "write": {
    	"rgb": true,
    	"alpha": true
    },
    "vertex": "chains/pillarbox_right_vertical/vs_offset_sat",
    "fragment": "chains/pillarbox_right_vertical/fs_offset_sat",
    "uniforms": [
    	{ "name": "s_tex",        "type": "int",  "values": [ 1.0 ] },
    	{ "name": "u_saturation", "type": "vec4", "values": [ 1.0, 0.0, 0.0, 0.0 ] }
    ]
}