hello every one ,
i have this code here

Dim desc = New SwapChainDescription() With {
                 .BufferCount = 1,
                 .ModeDescription = New ModeDescription(m_rendrform.ClientSize.Width,
                                                        m_rendrform.ClientSize.Height,
                                                        New Rational(60, 1),
                                                        Format.R8G8B8A8_UNorm),
                 .IsWindowed = True,
                 .OutputHandle = m_rendrform.Handle,
                 .SampleDescription = New SampleDescription(1, 0),
                 .SwapEffect = SwapEffect.Discard,
                 .Usage = Usage.RenderTargetOutput}
 
 
            ' Create our device with swap chain and get the device context
            Direct3D11.Device.CreateWithSwapChain(DriverType.Hardware,
                                                  DeviceCreationFlags.None,
                                                  desc,
                                                  _d3d11Device,
                                                  _swapChain)
 
            _d3d11DevCon = _d3d11Device.ImmediateContext
 
            _factory = _swapChain.GetParent(Of Factory)()
            _factory.MakeWindowAssociation(m_rendrform.Handle, WindowAssociationFlags.IgnoreAll)
 
            ' New RenderTargetView from the backbuffer
            backBuffer = Texture2D.FromSwapChain(Of Texture2D)(_swapChain, 0)
            _renderTargetView = New RenderTargetView(_d3d11Device, backBuffer)
 
            ' Compile Vertex and Pixel shaders
            vertexShaderByteCode = ShaderBytecode.CompileFromFile("MyPointsShaders.fx", "VS", "vs_4_0", ShaderFlags.None, EffectFlags.None)
            vertexShader = New VertexShader(_d3d11Device, vertexShaderByteCode)
 
            pixelShaderByteCode = ShaderBytecode.CompileFromFile("MyPointsShaders.fx", "PS", "ps_4_0", ShaderFlags.None, EffectFlags.None)
            pixelShader = New PixelShader(_d3d11Device, pixelShaderByteCode)
 
            ' Layout from VertexShader input signature
            layout = New InputLayout(_d3d11Device,
                                     ShaderSignature.GetInputSignature(vertexShaderByteCode),
                                     {New InputElement("POSITION", 0, Format.R32G32B32A32_Float, 0, 0),
                                      New InputElement("COLOR", 0, Format.R32G32B32A32_Float, 16, 0)})
 
            ' Instantiate Vertex buiffer from vertex data
            vertices = Direct3D11.Buffer.Create(
                _d3d11Device,
                BindFlags.VertexBuffer,
                {New Vector4(0.0F, 0.5F, 0.5F, 1.0F), New Vector4(1.0F, 0.0F, 0.0F, 1.0F),
                 New Vector4(0.5F, -0.5F, 0.5F, 1.0F), New Vector4(0.0F, 1.0F, 0.0F, 1.0F),
                 New Vector4(-0.5F, -0.5F, 0.5F, 1.0F), New Vector4(0.0F, 0.0F, 1.0F, 1.0F)})
 
            ' Prepare All the stages
            _d3d11DevCon.InputAssembler.InputLayout = layout
            _d3d11DevCon.InputAssembler.PrimitiveTopology = PrimitiveTopology.PointList
            _d3d11DevCon.InputAssembler.SetVertexBuffers(0, New VertexBufferBinding(vertices, 32, 0))
            _d3d11DevCon.VertexShader.Set(vertexShader)
            _d3d11DevCon.Rasterizer.SetViewport(New Viewport(0,
                                                             0,
                                                             m_rendrform.ClientSize.Width,
                                                             m_rendrform.ClientSize.Height,
                                                             0.0F, 1.0F))
            _d3d11DevCon.PixelShader.Set(pixelShader)
            _d3d11DevCon.OutputMerger.SetTargets(_renderTargetView)

this simply shows a black screen with a red dot on it (you can hardly see it)

so i have some questions :

1 - how to change location of the dot

2 - how to change color of the dot

3 - what are the pieces of the code that i posted that are responsible for "Drawing" objects

4 - how to change the black background

5 - are there any helpful tutorials for sharpdx with D3D11 ?

1 - the vertices array :

 vertices = Direct3D11.Buffer.Create(
                _d3d11Device,
                BindFlags.VertexBuffer,
                {New Vector4(0.0F, 0.5F, 0.5F, 1.0F), New Vector4(1.0F, 0.0F, 0.0F, 1.0F),
                 New Vector4(0.5F, -0.5F, 0.5F, 1.0F), New Vector4(0.0F, 1.0F, 0.0F, 1.0F),
                 New Vector4(-0.5F, -0.5F, 0.5F, 1.0F), New Vector4(0.0F, 0.0F, 1.0F, 1.0F)})

2 - pixel shader :

 vertexShaderByteCode = ShaderBytecode.CompileFromFile("MyPointsShaders.fx", "VS", "vs_4_0", ShaderFlags.None, EffectFlags.None)
            vertexShader = New VertexShader(_d3d11Device, vertexShaderByteCode)
 
            pixelShaderByteCode = ShaderBytecode.CompileFromFile("MyPointsShaders.fx", "PS", "ps_4_0", ShaderFlags.None, EffectFlags.None)
            pixelShader = New PixelShader(_d3d11Device, pixelShaderByteCode)

and the MyPointsShaders.fx is

struct VS_IN
{
	float4 pos : POSITION;
	float4 col : COLOR;
};

struct PS_IN
{
	float4 pos : SV_POSITION;
	float4 col : COLOR;
};

PS_IN VS(VS_IN input)
{
	PS_IN output = (PS_IN)0;

	output.pos = input.pos;
	output.col = input.col;

	return output;
}

float4 PS(PS_IN input) : SV_Target
{
	return input.col;
}

technique10 Render
{
	pass P0
	{
		SetGeometryShader(0);
		SetVertexShader(CompileShader(vs_4_0, VS()));
		SetPixelShader(CompileShader(ps_4_0, PS()));
	}
}

3 - it doesn't matter for me if i use c# or vb.net it's just that i prefer vb.net more when learning new things

ok here is my current progress

1 - i managed to change background dynamically on my interact or automatically

 _d3d11DevCon.ClearRenderTargetView(_renderTargetView, GetColor4(BackGround))

2 - i decided i will make a triangle instead , so i changed to this

_d3d11DevCon.Draw(3, 0) 'insted of 1

  Dim MyVertexes() As Vector3 = {New Vector3(0.0F, 0.5F, 0.0F),
                                           New Vector3(0.45F, -0.5F, 0.0F),
                                           New Vector3(-0.45F, -0.5F, 0.0F)}
            verticesBuffer = Direct3D11.Buffer.Create(
                _d3d11Device,
                BindFlags.VertexBuffer,
               MyVertexes)
            _d3d11DevCon.InputAssembler.InputLayout = layout
            _d3d11DevCon.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList
            _d3d11DevCon.InputAssembler.SetVertexBuffers(0, New VertexBufferBinding(verticesBuffer, 32, 0))
            _d3d11DevCon.VertexShader.Set(vertexShader)
            _d3d11DevCon.Rasterizer.SetViewport(New Viewport(0, 0,
                                                             m_rendrform.ClientSize.Width,
                                                             m_rendrform.ClientSize.Height,
                                                             0.0F, 1.0F))

but it isn't working

and i fail to see why is this not working since it's a perfect triangle

i got the whole code from here https://github.com/sharpdx/SharpDX-Samples/tree/master/Desktop/Direct3D11/MiniTri

and i just changed the vertexes but it shows this

the thing is : -

this code :

Dim vertixes2 = {New Vector4(0.0F, 0.5F, 0.5F, 1.0F),
                             New Vector4(1.0F, 0.0F, 0.0F, 1.0F),
                             New Vector4(0.5F, -0.5F, 0.5F, 1.0F),
                             New Vector4(0.0F, 1.0F, 0.0F, 1.0F),
                             New Vector4(-0.5F, -0.5F, 0.5F, 1.0F),
                             New Vector4(0.0F, 0.0F, 1.0F, 1.0F)}

shows this

but this code :

 Dim MyVertexes() As Vector3 = {New Vector3(0.0F, 0.5F, 0.0F),
                                           New Vector3(0.45F, -0.5F, 0.0F),
                                           New Vector3(-0.45F, -0.5F, 0.0F)}

shows this

In the original code, we have the following:

{
New Vector4(0.0F, 0.5F, 0.5F, 1.0F), //Position of 1st vertex
New Vector4(1.0F, 0.0F, 0.0F, 1.0F), //Color of 1st vertex
New Vector4(0.5F, -0.5F, 0.5F, 1.0F), //Position of 2nd vertex
New Vector4(0.0F, 1.0F, 0.0F, 1.0F), //Color of 2nd vertex
New Vector4(-0.5F, -0.5F, 0.5F, 1.0F), //Position of 3rd vertex
New Vector4(0.0F, 0.0F, 1.0F, 1.0F) //Color of 3rd vertex
}

Positions are in X Y Z.

Colors are in RGBA (Red, Green, Blue, Alpha). Alpha tends to mean translucency in shaders like this.

will , this is starting to make sense now

so in no way i can create a Vector3 that does all of the above ?

What you pass through has to match what the shader expects to receive.

If the shader expects 2x Vector4 values per vertex (1 for position and 1 for color), then you need to supply that.

Different shaders can expect different things, for example a single vector position, and the color hard coded in the shader.

and let me guess , this is what controlling it ?

 var layout = new InputLayout(
                device,
                ShaderSignature.GetInputSignature(vertexShaderByteCode),
                new[]
                    {
                        new InputElement("POSITION", 0, Format.R32G32B32A32_Float, 0, 0),
                        new InputElement("COLOR", 0, Format.R32G32B32A32_Float, 16, 0)
                    });