How to render transparent vertexes?

W

Wessel

Newcomer
Joined
Nov 14, 2003
Messages
20
Location
The Netherlands
Hi!,

I'm trying to render a rectangle with a transparent color. I made a vertexbuffer like this:

PHP: 
CustomVertex.TransformedColored[] pVerts = new CustomVertex.TransformedColored[4];
//590; 494
			GraphicsStream pStream = m_pVertex.Lock(0,0,0);

			pVerts[0].Position = new Vector4(Position.X+Size.Width,Position.Y,Position.Z,1.0f);
			pVerts[1].Position = new Vector4(Position.X+Size.Width,Position.Y+Size.Height,Position.Z,1.0f);
			pVerts[2].Position =new Vector4(Position.X,Position.Y+Size.Height,Position.Z,1.0f);
			pVerts[3].Position =new Vector4(Position.X,Position.Y,Position.Z,1.0f);

			pVerts[0].Color = BackColor.ToArgb();
			pVerts[1].Color = BackColor.ToArgb();
			pVerts[2].Color = BackColor.ToArgb();
			pVerts[3].Color = BackColor.ToArgb();

			pStream.Write(pVerts);

			m_pVertex.Unlock();

The BackColor defines a color with an alpha channel.
When i try to render the vertexbuffer, no transparency is applied but the color is visible. The renderstate is defined like this:

PHP: 
m_pDevice.RenderState.SeparateAlphaBlendEnabled = true;
			m_pDevice.RenderState.DestinationBlend = Blend.InvSourceAlpha;
			m_pDevice.RenderState.SourceBlend = Blend.SourceAlpha;

Any ideas?
 
Wessel said:
PHP: 
m_pDevice.RenderState.SeparateAlphaBlendEnabled = true;
			m_pDevice.RenderState.DestinationBlend = Blend.InvSourceAlpha;
			m_pDevice.RenderState.SourceBlend = Blend.SourceAlpha;
Click to expand...
I think you want to set AlphaBlendEnable, not SeparateAlphaBlendEnabled.
 
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