# Part of the back side of a transparent object disappears

I did some blending and culling to get the image below.

As you can see, it is messed up. On the right side of the image, only the front side of the mesh shows. On the left side of this image, it works, you can see both the front and back sides.

I'm pretty sure it is the culling. Here are my settings for blending and culling:

opaquePsoDesc.RasterizerState = CD3DX12_RASTERIZER_DESC(D3D12_DEFAULT);
opaquePsoDesc.RasterizerState.CullMode = D3D12_CULL_MODE_NONE;

AND blending

D3D12_GRAPHICS_PIPELINE_STATE_DESC blendPsoDesc = opaquePsoDesc;

D3D12_RENDER_TARGET_BLEND_DESC blendDesc;
blendDesc.BlendEnable = true;
blendDesc.LogicOpEnable = false;
blendDesc.SrcBlend = D3D12_BLEND_ONE;
blendDesc.DestBlend = D3D12_BLEND_ONE;
blendDesc.SrcBlendAlpha = D3D12_BLEND_ZERO;
blendDesc.DestBlendAlpha = D3D12_BLEND_ZERO;