colored triangle

hw3d/Graphics.cpp

@@ -100,21 +100,23 @@ void Graphics::ClearBuffer( float red,float green,float blue ) noexcept
 
 void Graphics::DrawTestTriangle()
 {
-	namespace wrl = Microsoft::WRL;
 	HRESULT hr;
 
 	struct Vertex
 	{
 		float x;
 		float y;
+		float r;
+		float g;
+		float b;
 	};
 
 	// create vertex buffer (1 2d triangle at center of screen)
 	const Vertex vertices[] =
 	{
-		{ 0.0f,0.5f },
-		{ 0.5f,-0.5f },
-		{ -0.5f,-0.5f },
+		{ 0.0f,0.5f,1.0f,0.0f,0.0f },
+		{ 0.5f,-0.5f,0.0f,1.0f,0.0f },
+		{ -0.5f,-0.5f,0.0f,0.0f,1.0f },
 	};
 	wrl::ComPtr<ID3D11Buffer> pVertexBuffer;
 	D3D11_BUFFER_DESC bd = {};
@@ -158,6 +160,7 @@ void Graphics::DrawTestTriangle()
 	const D3D11_INPUT_ELEMENT_DESC ied[] =
 	{
 		{ "Position",0,DXGI_FORMAT_R32G32_FLOAT,0,0,D3D11_INPUT_PER_VERTEX_DATA,0 },
+		{ "Color",0,DXGI_FORMAT_R32G32B32_FLOAT,0,8u,D3D11_INPUT_PER_VERTEX_DATA,0 },
 	};
 	GFX_THROW_INFO( pDevice->CreateInputLayout(
 		ied,(UINT)std::size( ied ),

hw3d/PixelShader.hlsl

-float4 main() : SV_Target
+float4 main( float3 color : Color ) : SV_Target
 {
-	return float4(1.0f,1.0f,1.0f,1.0f);
+	return float4( color,1.0f );
 }
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hw3d/VertexShader.hlsl

-float4 main( float2 pos : Position ) : SV_Position
+struct VSOut
 {
-	return float4(pos.x,pos.y,0.0f,1.0f);
+	float3 color : Color;
+	float4 pos : SV_Position;
+};
+
+VSOut main( float2 pos : Position,float3 color : Color )
+{
+	VSOut vso;
+	vso.pos = float4(pos.x,pos.y,0.0f,1.0f);
+	vso.color = color;
+	return vso;
 }
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