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Use premultiplied alpha for all textures and blending.

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This commit is contained in:
Paul Chote
2015-05-16 17:49:17 +01:00
parent 78f1e9fb2f
commit 26fd858fc7
16 changed files with 153 additions and 40 deletions
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7
OpenRA.Mods.Common/Traits/World/PaletteFromRGBA.cs
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@@ -8,6 +8,7 @@
*/
#endregion
using System.Drawing;
using System.Linq;
using OpenRA.Graphics;
using OpenRA.Traits;
@@ -50,7 +51,11 @@ namespace OpenRA.Mods.Common.Traits
if (info.Tileset != null && info.Tileset.ToLowerInvariant() != world.Map.Tileset.ToLowerInvariant())
return;
var c = (uint)((info.A << 24) | (info.R << 16) | (info.G << 8) | info.B);
var a = info.A / 255f;
var r = (int)(a * info.R + 0.5f).Clamp(0, 255);
var g = (int)(a * info.G + 0.5f).Clamp(0, 255);
var b = (int)(a * info.B + 0.5f).Clamp(0, 255);
var c = (uint)Color.FromArgb(info.A, r, g, b).ToArgb();
wr.AddPalette(info.Name, new ImmutablePalette(Enumerable.Range(0, Palette.Size).Select(i => (i == 0) ? 0 : c)), info.AllowModifiers);
}
}