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add alpha channel to every possible blend mode

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This commit is contained in:
Matthias Mailänder
2015-04-19 08:18:31 +02:00
parent 1b31001661
commit 63e4d40770
8 changed files with 25 additions and 34 deletions
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6
OpenRA.Game/Graphics/IGraphicsDevice.cs
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@@ -42,9 +42,7 @@ namespace OpenRA
Subtractive,
Multiply,
SoftAdditive,
Translucency25,
Translucency50,
Translucency75,
Translucency,
Multiplicative,
DoubleMultiplicative
}
@@ -72,7 +70,7 @@ namespace OpenRA
void EnableDepthBuffer();
void DisableDepthBuffer();
void SetBlendMode(BlendMode mode);
void SetBlendMode(BlendMode mode, float alpha = 1f);
void GrabWindowMouseFocus();
void ReleaseWindowMouseFocus();

9
OpenRA.Game/Graphics/Sprite.cs
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@@ -17,6 +17,7 @@ namespace OpenRA.Graphics
public readonly Rectangle Bounds;
public readonly Sheet Sheet;
public readonly BlendMode BlendMode;
public readonly float Alpha;
public readonly TextureChannel Channel;
public readonly float2 Size;
public readonly float2 Offset;
@@ -24,12 +25,9 @@ namespace OpenRA.Graphics
public readonly float Top, Left, Bottom, Right;
public Sprite(Sheet sheet, Rectangle bounds, TextureChannel channel)
: this(sheet, bounds, float2.Zero, channel, BlendMode.Alpha) { }
: this(sheet, bounds, float2.Zero, channel) { }
public Sprite(Sheet sheet, Rectangle bounds, TextureChannel channel, BlendMode blendMode)
: this(sheet, bounds, float2.Zero, channel, blendMode) { }
public Sprite(Sheet sheet, Rectangle bounds, float2 offset, TextureChannel channel, BlendMode blendMode)
public Sprite(Sheet sheet, Rectangle bounds, float2 offset, TextureChannel channel, BlendMode blendMode = BlendMode.Alpha, float alpha = 1f)
{
Sheet = sheet;
Bounds = bounds;
@@ -37,6 +35,7 @@ namespace OpenRA.Graphics
Channel = channel;
Size = new float2(bounds.Size);
BlendMode = blendMode;
Alpha = alpha;
FractionalOffset = offset / Size;

8
OpenRA.Game/Graphics/SpriteRenderer.cs
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@@ -21,6 +21,7 @@ namespace OpenRA.Graphics
readonly Vertex[] vertices;
Sheet currentSheet;
BlendMode currentBlend = BlendMode.Alpha;
float currentAlpha = 1f;
int nv = 0;
public SpriteRenderer(Renderer renderer, IShader shader)
@@ -36,14 +37,14 @@ namespace OpenRA.Graphics
{
shader.SetTexture("DiffuseTexture", currentSheet.GetTexture());
renderer.Device.SetBlendMode(currentBlend);
renderer.Device.SetBlendMode(currentBlend, currentAlpha);
shader.Render(() =>
{
var vb = renderer.GetTempVertexBuffer();
vb.SetData(vertices, nv);
renderer.DrawBatch(vb, 0, nv, PrimitiveType.QuadList);
});
renderer.Device.SetBlendMode(BlendMode.None);
renderer.Device.SetBlendMode(BlendMode.None, currentAlpha);
nv = 0;
currentSheet = null;
@@ -54,9 +55,10 @@ namespace OpenRA.Graphics
{
renderer.CurrentBatchRenderer = this;
if (s.Sheet != currentSheet || s.BlendMode != currentBlend || nv + 4 > renderer.TempBufferSize)
if (s.Alpha != currentAlpha || s.BlendMode != currentBlend || s.Sheet != currentSheet || nv + 4 > renderer.TempBufferSize)
Flush();
currentAlpha = s.Alpha;
currentBlend = s.BlendMode;
currentSheet = s.Sheet;
}

3
OpenRA.Mods.Common/Graphics/DefaultSpriteSequence.cs
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@@ -119,12 +119,13 @@ namespace OpenRA.Mods.Common.Graphics
var offset = LoadField<float2>(d, "Offset", float2.Zero);
var blendMode = LoadField<BlendMode>(d, "BlendMode", BlendMode.Alpha);
var alpha = LoadField<float>(d, "Alpha", 1f);
// Apply offset to each sprite in the sequence
// Different sequences may apply different offsets to the same frame
var src = GetSpriteSrc(modData, tileSet, sequence, animation, info.Value, d);
sprites = cache[src].Select(
s => new Sprite(s.Sheet, s.Bounds, s.Offset + offset, s.Channel, blendMode)).ToArray();
s => new Sprite(s.Sheet, s.Bounds, s.Offset + offset, s.Channel, blendMode, alpha)).ToArray();
MiniYaml length;
if (d.TryGetValue("Length", out length) && length.Value == "*")

2
OpenRA.Renderer.Null/NullGraphicsDevice.cs
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@@ -43,7 +43,7 @@ namespace OpenRA.Renderer.Null
public void EnableDepthBuffer() { }
public void DisableDepthBuffer() { }
public void SetBlendMode(BlendMode mode) { }
public void SetBlendMode(BlendMode mode, float alpha = 1f) { }
public void GrabWindowMouseFocus() { }
public void ReleaseWindowMouseFocus() { }

22
OpenRA.Renderer.Sdl2/Sdl2GraphicsDevice.cs
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@@ -208,7 +208,7 @@ namespace OpenRA.Renderer.Sdl2
ErrorHandler.CheckGlError();
}
public void SetBlendMode(BlendMode mode)
public void SetBlendMode(BlendMode mode, float alpha = 1f)
{
GL.BlendEquation(BlendEquationMode.FuncAdd);
ErrorHandler.CheckGlError();
@@ -246,26 +246,11 @@ namespace OpenRA.Renderer.Sdl2
ErrorHandler.CheckGlError();
GL.BlendFunc(BlendingFactorSrc.OneMinusDstColor, BlendingFactorDest.One);
break;
case BlendMode.Translucency25:
case BlendMode.Translucency:
GL.Enable(EnableCap.Blend);
ErrorHandler.CheckGlError();
GL.BlendFunc(BlendingFactorSrc.OneMinusConstantAlpha, BlendingFactorDest.One);
ErrorHandler.CheckGlError();
GL.BlendColor(1f, 1f, 1f, 0.25f);
break;
case BlendMode.Translucency50:
GL.Enable(EnableCap.Blend);
ErrorHandler.CheckGlError();
GL.BlendFunc(BlendingFactorSrc.OneMinusConstantAlpha, BlendingFactorDest.One);
ErrorHandler.CheckGlError();
GL.BlendColor(1f, 1f, 1f, 0.5f);
break;
case BlendMode.Translucency75:
GL.Enable(EnableCap.Blend);
ErrorHandler.CheckGlError();
GL.BlendFunc(BlendingFactorSrc.OneMinusConstantAlpha, BlendingFactorDest.One);
ErrorHandler.CheckGlError();
GL.BlendColor(1f, 1f, 1f, 0.75f);
break;
case BlendMode.Multiplicative:
GL.Enable(EnableCap.Blend);
@@ -279,6 +264,9 @@ namespace OpenRA.Renderer.Sdl2
break;
}
if (alpha != 1f)
GL.BlendColor(1f, 1f, 1f, alpha);
ErrorHandler.CheckGlError();
}

6
mods/d2k/sequences/misc.yaml
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@@ -85,14 +85,16 @@ bazooka_trail:
Start: 3381
Length: 4
Tick: 80
BlendMode: Translucency75
BlendMode: Translucency
Alpha: 0.75
bazooka_trail2:
idle: DATA.R8
Start: 3544
Length: 4
Tick: 80
BlendMode: Translucency75
BlendMode: Translucency
Alpha: 0.75
deviator_trail:
idle: DATA.R8

3
mods/ts/sequences/misc.yaml
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@@ -1,7 +1,8 @@
overlay:
Defaults: place
Offset: 0, -12
BlendMode: Translucency75
BlendMode: Translucency
Alpha: 0.75
build-valid-snow:
build-valid-temperat:
build-invalid: