[DirectX11] Multiple Render Target

Graphics and GPU Programming Programming

Started by enigmagame April 30, 2011 08:13 PM

10 comments, last by enigmagame 12 years, 11 months ago

140

Author

April 30, 2011 08:13 PM

Hi, I'm writing a demo that uses Deferred Shading in DirectX11 but I've some troubles with MTR.
Some info:
- I use DXUT;
- I've implemented a class that represent a RenderTarget (ID3D11Texture2D, ID3D11RenderTargetView, ID3D11ShaderResourceView);
In particular, when I debug with PIX, I get those output log, but I don't understand the problem:





Time	EID	Type	Context	Message

0	126	Message	Render	D3D11: WARNING: ID3D11DeviceContext::OMSetRenderTargets: Resource being set to OM RenderTarget slot 0 is still bound on input! [ STATE_SETTING WARNING #9: DEVICE_OMSETRENDERTARGETS_HAZARD ]	

1	126	Message	Render	D3D11: WARNING: ID3D11DeviceContext::OMSetRenderTargets[AndUnorderedAccessViews]: Forcing PS shader resource slot 0 to NULL. [ STATE_SETTING WARNING #7: DEVICE_PSSETSHADERRESOURCES_HAZARD ]	

2	126	Message	Render	D3D11: WARNING: ID3D11DeviceContext::OMSetRenderTargets: Resource being set to OM RenderTarget slot 1 is still bound on input! [ STATE_SETTING WARNING #9: DEVICE_OMSETRENDERTARGETS_HAZARD ]	

3	126	Message	Render	D3D11: WARNING: ID3D11DeviceContext::OMSetRenderTargets[AndUnorderedAccessViews]: Forcing PS shader resource slot 1 to NULL. [ STATE_SETTING WARNING #7: DEVICE_PSSETSHADERRESOURCES_HAZARD ]	

4	126	Message	Render	D3D11: WARNING: ID3D11DeviceContext::OMSetRenderTargets: Resource being set to OM RenderTarget slot 2 is still bound on input! [ STATE_SETTING WARNING #9: DEVICE_OMSETRENDERTARGETS_HAZARD ]	

5	126	Message	Render	D3D11: WARNING: ID3D11DeviceContext::OMSetRenderTargets[AndUnorderedAccessViews]: Forcing PS shader resource slot 2 to NULL. [ STATE_SETTING WARNING #7: DEVICE_PSSETSHADERRESOURCES_HAZARD ]

Let me know if you need more info or some code.
Thanks.

LegendInStone

117

April 30, 2011 08:33 PM

You are likely using the texture resource(s) for those render targets for a shader, and still have them bound to that stage of the rendering pipeline. You can't have the resource bound for input and output at the same time in D3D11.

enigmagame

140

Author

April 30, 2011 08:38 PM

You are likely using the texture resource(s) for those render targets for a shader, and still have them bound to that stage of the rendering pipeline. You can't have the resource bound for input and output at the same time in D3D11.

Ok, I understand this. But how I can solve?
Basically in D3D11_TEXTURE2D_DESC as BindFlags I use D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE.
Now, as first step I need to write on the texture, and after I need to pass this texture to another shader. How can I proceed?
Thanks.

Aqua Costa

3,705

April 30, 2011 10:06 PM

You cant have a texture bound as input (shader resource view) and output (render target) at the same time.

After you render whatever you want to render using a shader resource view, set the ID3D11EffectShaderResourceVariable* to NULL and apply.



(your ID3D11EffectShaderResourceVariable*)->SetResource(NULL);

(your ID3D10EffectTechnique*)->GetPassByIndex(0)->Apply(0);

So you can bound the render target again

enigmagame

140

Author

April 30, 2011 11:54 PM

Thanks[color="#1c2837"] TiagoCosta, I understood what you say, but I'm in the opposite situation. Ok, today I'm very, very tired.
[color="#1c2837"]Basically this is my situation:
[color="#1c2837"]



ID3D11RenderTargetView* renderTargetViewArray[3] = 

{

	m_colorRenderTarget,

	m_normalRenderTarget,

	m_depthRenderTarget

};



i_deviceContext->OMSetRenderTargets(3, renderTargetViewArray, depthStencilView);



// Clear render targets



// Draw



i_deviceContext->OMSetRenderTargets(1, &lightRenderTarget, NULL);



// Here I need to use the three textures filled by the precedent draw call

[color="#1c2837"]Maybe tomorrow, after a good sleep, I can solve this.

enigmagame

140

Author

May 01, 2011 09:23 PM

I've not yet solved.

Any suggestions?

Aqua Costa

3,705

May 01, 2011 09:29 PM

Can you post the full code you use to set render targets, draw calls and set shader resources??

enigmagame

140

Author

May 01, 2011 09:41 PM

Can you post the full code you use to set render targets, draw calls and set shader resources??

This is the code sequence:



// Set render targets

ID3D11RenderTargetView* renderTargetViewArray[3] = 

{

	g_colorRenderTarget->GetRenderTarget(),

	g_normalRenderTarget->GetRenderTarget(),

	g_depthRenderTarget->GetRenderTarget()

};



ID3D11DepthStencilView* depthStencilView = DXUTGetD3D11DepthStencilView();



i_deviceContext->OMSetRenderTargets(3, renderTargetViewArray, depthStencilView);



// Clear render targets

const float clearColor[4] = {0.f, 0.f, 0.f, 0.f};

g_colorRenderTarget->Clear(i_deviceContext, clearColor);



const float clearNormal[4] = {0.5f, 0.5f, 0.5f, 0.f};

g_normalRenderTarget->Clear(i_deviceContext, clearNormal);



const float clearDepth[1] = {1.f};

g_depthRenderTarget->Clear(i_deviceContext, clearDepth);



i_deviceContext->ClearDepthStencilView(DXUTGetD3D11DepthStencilView(), D3D11_CLEAR_DEPTH, 1.0, 0);



// Draw Scene

g_RenderGBufferEffect->GetVariableByName("World")->AsMatrix()->SetMatrix(g_WorldCube);

g_RenderGBufferEffect->GetVariableByName("View")->AsMatrix()->SetMatrix((float*) &g_View);

g_RenderGBufferEffect->GetVariableByName("Projection")->AsMatrix()->SetMatrix((float*) &g_Projection);



SetMaterial(g_MaterialCube);



i_deviceContext->IASetInputLayout(g_pVertexLayout);

i_deviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);



const UINT stride = sizeof(SimpleVertex);

const UINT offset = 0;

i_deviceContext->IASetVertexBuffers(0, 1, &g_pVertexBufferCube, &stride, &offset);

i_deviceContext->IASetIndexBuffer(g_pIndexBufferCube, DXGI_FORMAT_R32_UINT, 0);



D3DX11_TECHNIQUE_DESC techDesc;

g_RenderGBufferTechnique->GetDesc(&techDesc);



for(UINT p = 0; p < techDesc.Passes; ++p)

{

	g_RenderGBufferTechnique->GetPassByIndex(p)->Apply(0, i_deviceContext);

	i_deviceContext->DrawIndexed(36, 0, 0);

}



// Set and clear render target

const float clearLight[4] = {0.f, 0.f, 0.f, 0.f};



ID3D11RenderTargetView* lightRenderTarget = g_lightRenderTarget->GetRenderTarget();

i_deviceContext->OMSetRenderTargets(1, &lightRenderTarget, NULL);

g_lightRenderTarget->Clear(i_deviceContext, clearLight);



// Draw

g_pointLightEffect->GetVariableByName("colorTexture")->AsShaderResource()->SetResource(g_colorRenderTarget->GetResourceView());

g_pointLightEffect->GetVariableByName("normalTexture")->AsShaderResource()->SetResource(g_normalRenderTarget->GetResourceView());

g_pointLightEffect->GetVariableByName("depthTexture")->AsShaderResource()->SetResource(g_depthRenderTarget->GetResourceView());



i_deviceContext->IASetInputLayout(g_pointLightLayout);



D3DX11_TECHNIQUE_DESC techDesc;

g_pointLightTechnique->GetDesc( &techDesc );



for( UINT p = 0; p < techDesc.Passes; ++p )

{

	g_pointLightTechnique->GetPassByIndex( p )->Apply(0,i_deviceContext);

	g_MeshSphere.Render(i_deviceContext);

}

LegendInStone

117

May 01, 2011 09:56 PM

[quote name='TiagoCosta' timestamp='1304285362' post='4805174']
Can you post the full code you use to set render targets, draw calls and set shader resources??

This is the code sequence:



// Set render targets

ID3D11RenderTargetView* renderTargetViewArray[3] = 

{

	g_colorRenderTarget->GetRenderTarget(),

	g_normalRenderTarget->GetRenderTarget(),

	g_depthRenderTarget->GetRenderTarget()

};



ID3D11DepthStencilView* depthStencilView = DXUTGetD3D11DepthStencilView();



i_deviceContext->OMSetRenderTargets(3, renderTargetViewArray, depthStencilView);



// Clear render targets

const float clearColor[4] = {0.f, 0.f, 0.f, 0.f};

g_colorRenderTarget->Clear(i_deviceContext, clearColor);



const float clearNormal[4] = {0.5f, 0.5f, 0.5f, 0.f};

g_normalRenderTarget->Clear(i_deviceContext, clearNormal);



const float clearDepth[1] = {1.f};

g_depthRenderTarget->Clear(i_deviceContext, clearDepth);



i_deviceContext->ClearDepthStencilView(DXUTGetD3D11DepthStencilView(), D3D11_CLEAR_DEPTH, 1.0, 0);



// Draw Scene

g_RenderGBufferEffect->GetVariableByName("World")->AsMatrix()->SetMatrix(g_WorldCube);

g_RenderGBufferEffect->GetVariableByName("View")->AsMatrix()->SetMatrix((float*) &g_View);

g_RenderGBufferEffect->GetVariableByName("Projection")->AsMatrix()->SetMatrix((float*) &g_Projection);



SetMaterial(g_MaterialCube);



i_deviceContext->IASetInputLayout(g_pVertexLayout);

i_deviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);



const UINT stride = sizeof(SimpleVertex);

const UINT offset = 0;

i_deviceContext->IASetVertexBuffers(0, 1, &g_pVertexBufferCube, &stride, &offset);

i_deviceContext->IASetIndexBuffer(g_pIndexBufferCube, DXGI_FORMAT_R32_UINT, 0);



D3DX11_TECHNIQUE_DESC techDesc;

g_RenderGBufferTechnique->GetDesc(&techDesc);



for(UINT p = 0; p < techDesc.Passes; ++p)

{

	g_RenderGBufferTechnique->GetPassByIndex(p)->Apply(0, i_deviceContext);

	i_deviceContext->DrawIndexed(36, 0, 0);

}



// Set and clear render target

const float clearLight[4] = {0.f, 0.f, 0.f, 0.f};



ID3D11RenderTargetView* lightRenderTarget = g_lightRenderTarget->GetRenderTarget();

i_deviceContext->OMSetRenderTargets(1, &lightRenderTarget, NULL);

g_lightRenderTarget->Clear(i_deviceContext, clearLight);



// Draw

g_pointLightEffect->GetVariableByName("colorTexture")->AsShaderResource()->SetResource(g_colorRenderTarget->GetResourceView());

g_pointLightEffect->GetVariableByName("normalTexture")->AsShaderResource()->SetResource(g_normalRenderTarget->GetResourceView());

g_pointLightEffect->GetVariableByName("depthTexture")->AsShaderResource()->SetResource(g_depthRenderTarget->GetResourceView());



i_deviceContext->IASetInputLayout(g_pointLightLayout);



D3DX11_TECHNIQUE_DESC techDesc;

g_pointLightTechnique->GetDesc( &techDesc );



for( UINT p = 0; p < techDesc.Passes; ++p )

{

	g_pointLightTechnique->GetPassByIndex( p )->Apply(0,i_deviceContext);

	g_MeshSphere.Render(i_deviceContext);

}

[/quote]

With the provided code those textures will still be bound on the input stage when another frame is rendered; you will have to clear them from the shader before drawing the next frame.

enigmagame

140

Author

May 01, 2011 10:03 PM

With the provided code those textures will still be bound on the input stage when another frame is rendered; you will have to clear them from the shader before drawing the next frame.

Yes, I've understand the problem, but not the solution, or rather, the pratical solution.

[DirectX11] Multiple Render Target

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