Black screen MSAA - ResolveSubresource

komilll · 2019-08-13T20:26:30

Hey, To begin with - I was successful with creating MSAA using MSAA swap chain, but I am not satisfied with it, especially because it doesn't support changing MSAA settings on the fly. I've already read many thread on this forum regarding MSAA and I learnt here about ResolveSubresource and how we deal with converting MSAA texture to non-MSAA to present it on screen with non-MSAA buffer. A little background: I have forward rendering engine, I have also already used render targets. I am creating render target for scene, render models to it. Then I am creating G-buffers for SSAO which I render to another texture and then I apply another post-processes. For sake of testing MSAA, I am using no post-processes.m_renderTextureMainScene is my MSAA buffer. Then I am trying to resolve it to non-MSAA render target but only black screen appears. When m_renderTextureMainScene is non-MSAA, rendering works fine: XMMATRIX worldMatrix, viewMatrix, projectionMatrix, lightViewMatrix, lightProjectionMatrix; m_renderTextureMainScene->SetRenderTarget(m_D3D->GetDeviceContext(), m_D3D->GetDepthStencilView()); m_renderTextureMainScene->ClearRenderTarget(m_D3D->GetDeviceContext(), m_D3D->GetDepthStencilView(), 0.0f, 0.0f, 0.0f, 1.0f); for (ModelClass* const& model : m_sceneModels) { // ... model->Render(m_D3D->GetDeviceContext()); // ... } if (DRAW_SKYBOX) { if (RenderSkybox() == false) return false; } m_D3D->SetBackBufferRenderTarget(); static RenderTextureClass *renderTexture; if (renderTexture == nullptr) { renderTexture = new RenderTextureClass; renderTexture->Initialize(m_D3D->GetDevice(), m_screenWidth, m_screenHeight, 1); } m_D3D->GetDeviceContext()->ResolveSubresource(renderTexture->GetShaderResource(), 0, m_renderTextureMainScene->GetShaderResource(), 0, DXGI_FORMAT_R16G16B16A16_FLOAT); m_renderTexturePreview->BindTexture(renderTexture->GetShaderResourceView()); if (!m_renderTexturePreview->Render(m_D3D->GetDeviceContext(), 0, worldMatrix, viewMatrix, projectionMatrix)) return false;

Graphics and GPU Programming Programming DX11

Started by komilll August 05, 2019 05:22 PM

9 comments, last by komilll 5 years, 5 months ago

komilll

Author

August 13, 2019 08:26 PM

@MJP

Well, my previous assumption was only partially right. In post above I managed to get version without skybox working, but I was investigating it for the last two days and I find why it actually doesn't work with skybox.

Render scene to texture (msaa x2)
Render skybox
Resolve texture
Present

After resolve step, render target is black and just black screen is presented at the end.

However, when I am not using msaa it works without problem. When I am not using skybox, it also works ok. Problem is that I don't know how to use MSAA with skybox. I am using CreateDDSTextureFromFile for importing .DDS skybox file.

Black screen MSAA - ResolveSubresource

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Black screen MSAA - ResolveSubresource

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