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Fixed alpha in spine-xna.

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#121
This commit is contained in:
NathanSweet 2013-09-25 10:04:32 +02:00
parent 72f8f98a54
commit 1f3dceed40
1 changed files with 7 additions and 22 deletions
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29
spine-xna/src/SkeletonRenderer.cs
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@ -42,7 +42,6 @@ namespace Spine {
SpriteBatcher batcher;
BasicEffect effect;
RasterizerState rasterizerState;
public bool PremultipliedAlpha { get; set; }
float[] vertices = new float[8];
public SkeletonRenderer (GraphicsDevice device) {
@ -64,7 +63,7 @@ namespace Spine {
public void Begin () {
device.RasterizerState = rasterizerState;
device.BlendState = BlendState.AlphaBlend;
device.BlendState = BlendState.AlphaBlend; // spine-xna textures are premultiplied on load, see Util.cs.
effect.Projection = Matrix.CreateOrthographicOffCenter(0, device.Viewport.Width, device.Viewport.Height, 0, 1, 0);
}
@ -94,26 +93,12 @@ namespace Spine {
AtlasRegion region = (AtlasRegion)regionAttachment.RendererObject;
item.Texture = (Texture2D)region.page.rendererObject;
byte r = (byte)(skeletonR * slot.R * 255);
byte g = (byte)(skeletonG * slot.G * 255);
byte b = (byte)(skeletonB * slot.B * 255);
byte a = (byte)(skeletonA * slot.A * 255);
item.vertexTL.Color.R = r;
item.vertexTL.Color.G = g;
item.vertexTL.Color.B = b;
item.vertexTL.Color.A = a;
item.vertexBL.Color.R = r;
item.vertexBL.Color.G = g;
item.vertexBL.Color.B = b;
item.vertexBL.Color.A = a;
item.vertexBR.Color.R = r;
item.vertexBR.Color.G = g;
item.vertexBR.Color.B = b;
item.vertexBR.Color.A = a;
item.vertexTR.Color.R = r;
item.vertexTR.Color.G = g;
item.vertexTR.Color.B = b;
item.vertexTR.Color.A = a;
float a = skeletonA * slot.A;
Color color = new Color(skeletonR * slot.R * a, skeletonG * slot.G * a, skeletonB * slot.B * a, a);
item.vertexTL.Color = color;
item.vertexBL.Color = color;
item.vertexBR.Color = color;
item.vertexTR.Color = color;
float[] vertices = this.vertices;
regionAttachment.ComputeWorldVertices(x, y, slot.Bone, vertices);