static GraphicsBufferView CreateVertexBufferView(GraphicsCopyContext copyContext, GraphicsBuffer vertexBuffer, GraphicsBuffer uploadBuffer, float aspectRatio)
{
var uploadBufferView = uploadBuffer.CreateBufferView <IdentityVertex>(3);
var vertexBufferSpan = uploadBufferView.Map <IdentityVertex>();
{
vertexBufferSpan[0] = new IdentityVertex {
Color = Colors.Red,
Position = Vector3.Create(0.0f, 0.25f * aspectRatio, 0.0f),
};
vertexBufferSpan[1] = new IdentityVertex {
Color = Colors.Lime,
Position = Vector3.Create(0.25f, -0.25f * aspectRatio, 0.0f),
};
vertexBufferSpan[2] = new IdentityVertex {
Color = Colors.Blue,
Position = Vector3.Create(-0.25f, -0.25f * aspectRatio, 0.0f),
};
}
uploadBufferView.UnmapAndWrite();
var vertexBufferView = vertexBuffer.CreateBufferView <IdentityVertex>(3);
copyContext.Copy(vertexBufferView, uploadBufferView);
return(vertexBufferView);
}
static GraphicsBufferView CreateVertexBufferView(GraphicsCopyContext copyContext, GraphicsBuffer vertexBuffer, GraphicsBuffer uploadBuffer, float aspectRatio)
{
var uploadBufferView = uploadBuffer.CreateBufferView <IdentityVertex>(4);
var vertexBufferSpan = uploadBufferView.Map <IdentityVertex>();
{
vertexBufferSpan[0] = new IdentityVertex { //
Color = Colors.Red, // y in this setup
Position = Vector3.Create(-0.25f, 0.25f * aspectRatio, 0.0f), // ^ z the origin o
}; // | / is in the middle
// | / of the rendered scene
vertexBufferSpan[1] = new IdentityVertex { // o------>x
Color = Colors.Blue, //
Position = Vector3.Create(0.25f, 0.25f * aspectRatio, 0.0f), // 0 ----- 1
}; // | \ |
// | \ |
vertexBufferSpan[2] = new IdentityVertex { // | \ |
Color = Colors.Lime, // 3-------2
Position = Vector3.Create(0.25f, -0.25f * aspectRatio, 0.0f), //
};
vertexBufferSpan[3] = new IdentityVertex {
Color = Colors.Blue,
Position = Vector3.Create(-0.25f, -0.25f * aspectRatio, 0.0f),
};
}
uploadBufferView.UnmapAndWrite();
var vertexBufferView = vertexBuffer.CreateBufferView <IdentityVertex>(4);
copyContext.Copy(vertexBufferView, uploadBufferView);
return(vertexBufferView);
}
