private void SetupConstantBuffers()
{
perObjectConstantShaderBuffer = new D3D11.Buffer(deviceResources.Device, SharpDX.Utilities.SizeOf <PerObjectBuffer>(),
D3D11.ResourceUsage.Default,
D3D11.BindFlags.ConstantBuffer,
D3D11.CpuAccessFlags.None,
D3D11.ResourceOptionFlags.None, 0);
perFrameConstantShaderBuffer = new D3D11.Buffer(deviceResources.Device, SharpDX.Utilities.SizeOf <PerFrameBuffer>(),
D3D11.ResourceUsage.Default,
D3D11.BindFlags.ConstantBuffer,
D3D11.CpuAccessFlags.None,
D3D11.ResourceOptionFlags.None, 0);
perObjectBuffer = new PerObjectBuffer();
perFrameBuffer = new PerFrameBuffer();
}
private void UpdatePerObjectBuffer(Matrix modelMatrix, Camera cam)
{
// Transpose to get Column Major matrixes for Shader
Matrix world = Matrix.Transpose(modelMatrix);
Matrix view = Matrix.Transpose(cam.View);
Matrix proj = Matrix.Transpose(cam.Proj);
Matrix mvp = proj * view * world;
perObjectBuffer = new PerObjectBuffer();
perObjectBuffer.world = world;
perObjectBuffer.view = view;
perObjectBuffer.proj = proj;
perObjectBuffer.worldViewProj = mvp;
perObjectBuffer.normalMatrix = Matrix.Invert(Matrix.Transpose(world));
perObjectBuffer.invProj = Matrix.Invert(proj);
deviceResources.DeviceContext.UpdateSubresource(ref perObjectBuffer, perObjectConstantShaderBuffer);
}