diff --git a/internal/graphicsdriver/directx/pipeline_windows.go b/internal/graphicsdriver/directx/pipeline_windows.go
index 611e1d190..fe110af33 100644
--- a/internal/graphicsdriver/directx/pipeline_windows.go
+++ b/internal/graphicsdriver/directx/pipeline_windows.go
@@ -674,16 +674,12 @@ func (p *pipelineStates) newPipelineState(device *iD3D12Device, vsh, psh *iD3DBl
 
 func (p *pipelineStates) releaseConstantBuffers(frameIndex int) {
 	for i := range p.constantBuffers[frameIndex] {
-		p.constantBuffers[frameIndex][i].Unmap(0, nil)
 		p.constantBuffers[frameIndex][i].Release()
 		p.constantBuffers[frameIndex][i] = nil
-		p.constantBufferMaps[frameIndex][i] = 0
 	}
 	p.constantBuffers[frameIndex] = p.constantBuffers[frameIndex][:0]
-	p.constantBufferMaps[frameIndex] = p.constantBufferMaps[frameIndex][:0]
 }
 
 func (p *pipelineStates) resetConstantBuffers(frameIndex int) {
 	p.constantBuffers[frameIndex] = p.constantBuffers[frameIndex][:0]
-	p.constantBufferMaps[frameIndex] = p.constantBufferMaps[frameIndex][:0]
 }