render.Clear Alpha Channel

[Walrus Viking]

I know there have been recent threads talking about this, but it's still an apparent problem. I don't want to do a cheap hax fix just to create a material with a transparent background..

Alpha: 255
[t]http://puu.sh/6gJ5L/c6bece12b4.png[/t]

Alpha: 127
[t]http://puu.sh/6gJ7m/5d0ee302e4.png[/t]

Line 27:

local TEXTURE_FLAGS_CLAMP_S = 0x0004;
local TEXTURE_FLAGS_CLAMP_T = 0x0008;

local rt = GetRenderTarget( "test", 64, 64,
	RT_SIZE_NO_CHANGE,
	MATERIAL_RT_DEPTH_SEPARATE,
	bit.bor(TEXTURE_FLAGS_CLAMP_S, TEXTURE_FLAGS_CLAMP_T),
	CREATERENDERTARGETFLAGS_UNFILTERABLE_OK,
    IMAGE_FORMAT_RGBA8888
);

local mat = CreateMaterial( "test", "UnlitGeneric", {
	["$ignorez"] = 1,
	["$vertexcolor"] = 1,
	["$vertexalpha"] = 1,
	["$nolod"] = 1,
	["$basetexture"] = rt:GetName()
});

local last = render.GetRenderTarget();

render.SetViewPort( 0, 0, 64, 64 );
render.SetRenderTarget( rt );

-- If this is 0, the entire texture is blank.
-- If it's 127, the entire texture is half opaque. (Undesired)
render.Clear( 0, 0, 0, 127, true, true );

cam.Start2D();
	surface.SetDrawColor( color_white );
	surface.SetMaterial( Material( "icon16/accept.png" ) );
	surface.DrawTexturedRect( 0, 0, 64, 64 );
cam.End2D();

render.SetRenderTarget( last );
render.SetViewPort( 0, 0, ScrW(), ScrH() );


hook.Add( "HUDPaint", "Test", function()
	surface.SetDrawColor( color_white );
	surface.SetMaterial( mat );
	surface.DrawTexturedRect( 128, 128, 64, 64 );
end );

[Ollie]

It's a very huge problem still, please fix it!

I made a few threads like 4 months ago but nobody bothered to fix it.
[URL]http://facepunch.com/showthread.php?t=1276498[/URL]

[Walrus Viking]

i love u garry pls fix