【发布时间】:2017-01-09 16:00:23
【问题描述】:
我正在尝试绘制一个绿色三角形。我设法绘制了三角形,但它是白色而不是绿色。有谁知道是什么原因造成的?
这是我的代码:
protected override void LoadContent()
{
_vertexPositionColors = new[]
{
new VertexPositionColor(new Vector3(0, 0, 0), Color.Green),
new VertexPositionColor(new Vector3(100, 0, 0), Color.Red),
new VertexPositionColor(new Vector3(100, 100, 0), Color.Blue)
};
_basicEffect = new BasicEffect(GraphicsDevice);
_basicEffect.World = Matrix.CreateOrthographicOffCenter(
0, GraphicsDevice.Viewport.Width, GraphicsDevice.Viewport.Height, 0, 0, 1);
_basicEffect.LightingEnabled = false;
_basicEffect.VertexColorEnabled = true;
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
EffectTechnique effectTechnique = _basicEffect.Techniques[0];
EffectPassCollection effectPassCollection = effectTechnique.Passes;
foreach (EffectPass pass in effectPassCollection)
{
pass.Apply();
GraphicsDevice.DrawUserPrimitives(PrimitiveType.TriangleList, _vertexPositionColors, 0, 1);
}
base.Draw(gameTime);
}
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