11fa2e8b43
See also http://code.google.com/p/bullet/issues/detail?id=390 Added Demos/DX11ClothDemo (an OpenCL cloth demo will follow soon)
287 lines
8.6 KiB
C++
287 lines
8.6 KiB
C++
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class piece_of_cloth
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{
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public:
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void destroy(void)
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{
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if(created)
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{
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SAFE_RELEASE(g_pIndexBuffer);
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SAFE_RELEASE(pVB[0]);
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SAFE_RELEASE(g_pVB_UAV);
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SAFE_RELEASE(pVB_staging);
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SAFE_RELEASE(texture2D_view);
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if(m_vertexBufferDescriptor) delete [] m_vertexBufferDescriptor;
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if(cpu_buffer) delete [] cpu_buffer;
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}
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}
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piece_of_cloth()
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{
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created = false;
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m_vertexBufferDescriptor = NULL;
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cpu_buffer = NULL;
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}
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bool created;
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ID3D11Buffer* g_pIndexBuffer;
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ID3D11Buffer* pVB[1];
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ID3D11Buffer* pVB_staging;
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float* cpu_buffer;
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ID3D11UnorderedAccessView* g_pVB_UAV;
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UINT Strides[1];
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UINT Offsets[1];
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double x_offset, y_offset, z_offset;
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ID3D11ShaderResourceView *texture2D_view;
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int width;
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int height;
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btVertexBufferDescriptor *m_vertexBufferDescriptor;
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void create_texture(std::wstring filename)
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{
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D3DX11_IMAGE_LOAD_INFO loadInfo;
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ZeroMemory(&loadInfo, sizeof(D3DX11_IMAGE_LOAD_INFO) );
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loadInfo.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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loadInfo.Format = DXGI_FORMAT_BC1_UNORM;
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HRESULT hr = D3DX11CreateShaderResourceViewFromFile(g_pd3dDevice, filename.c_str(), &loadInfo, NULL, &texture2D_view, NULL);
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hr = hr;
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}
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void draw(void)
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{
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ID3D11DeviceContext* pd3dImmediateContext = DXUTGetD3D11DeviceContext();
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D3DXMATRIX mWorldViewProjection;
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D3DXVECTOR3 vLightDir;
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D3DXMATRIX mWorld;
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D3DXMATRIX mView;
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D3DXMATRIX mProj;
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// Get the projection & view matrix from the camera class
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mProj = *g_Camera.GetProjMatrix();
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mView = *g_Camera.GetViewMatrix();
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// Get the light direction
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vLightDir = g_LightControl.GetLightDirection();
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// Per frame cb update
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D3D11_MAPPED_SUBRESOURCE MappedResource;
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HRESULT hr;
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#ifndef USE_GPU_COPY
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pd3dImmediateContext->Map( pVB_staging, 0, D3D11_MAP_WRITE_DISCARD, 0, &MappedResource );
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memcpy( MappedResource.pData, cpu_buffer, 4*width*height*8 );
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pd3dImmediateContext->Unmap(pVB_staging, 0 );
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pd3dImmediateContext->CopyResource(pVB[0], pVB_staging);
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#endif // #ifndef USE_GPU_COPY
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V( pd3dImmediateContext->Map( g_pcbPSPerFrame, 0, D3D11_MAP_WRITE_DISCARD, 0, &MappedResource ) );
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CB_PS_PER_FRAME* pPerFrame = ( CB_PS_PER_FRAME* )MappedResource.pData;
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float fAmbient = 0.1f;
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pPerFrame->m_vLightDirAmbient = D3DXVECTOR4( vLightDir.x, vLightDir.y, vLightDir.z, fAmbient );
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pd3dImmediateContext->Unmap( g_pcbPSPerFrame, 0 );
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pd3dImmediateContext->PSSetConstantBuffers( g_iCBPSPerFrameBind, 1, &g_pcbPSPerFrame );
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///////////////////////////////////////Modify below//////////////////////////////////////////////////////
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//Get the mesh
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//IA setup
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pd3dImmediateContext->IASetInputLayout( g_pVertexLayout11 );
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//This is where we pass the vertex buffer to DX
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pd3dImmediateContext->IASetVertexBuffers( 0, 1, pVB, Strides, Offsets );
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//This is where we pass the index buffer to DX
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pd3dImmediateContext->IASetIndexBuffer( g_pIndexBuffer, DXGI_FORMAT_R32_UINT, 0 );
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/////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Set the shaders
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pd3dImmediateContext->VSSetShader( g_pVertexShader, NULL, 0 );
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pd3dImmediateContext->PSSetShader( g_pPixelShader, NULL, 0 );
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pd3dImmediateContext->GSSetShader( g_pGeometryShader, NULL, 0);
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// Set the per object constant data
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D3DXMATRIXA16 m_scale;
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float sc = 10;
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D3DXMatrixScaling(&m_scale,sc,sc,sc);
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D3DXVECTOR3 vCenter( global_shift_x, global_shift_y, global_shift_z);
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D3DXMatrixTranslation( &g_mCenterMesh, -vCenter.x+x_offset, -vCenter.y+y_offset, -vCenter.z+z_offset );
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mWorld = *g_Camera.GetWorldMatrix();
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mProj = *g_Camera.GetProjMatrix();
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mView = *g_Camera.GetViewMatrix();
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mWorldViewProjection = mView * mProj;
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// VS Per object
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V( pd3dImmediateContext->Map( g_pcbVSPerObject, 0, D3D11_MAP_WRITE_DISCARD, 0, &MappedResource ) );
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CB_VS_PER_OBJECT* pVSPerObject = ( CB_VS_PER_OBJECT* )MappedResource.pData;
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D3DXMatrixTranspose( &pVSPerObject->m_WorldViewProj, &mWorldViewProjection );
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D3DXMatrixTranspose( &pVSPerObject->m_World, &mWorld );
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pd3dImmediateContext->Unmap( g_pcbVSPerObject, 0 );
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pd3dImmediateContext->VSSetConstantBuffers( g_iCBVSPerObjectBind, 1, &g_pcbVSPerObject );
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// PS Per object
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V( pd3dImmediateContext->Map( g_pcbPSPerObject, 0, D3D11_MAP_WRITE_DISCARD, 0, &MappedResource ) );
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CB_PS_PER_OBJECT* pPSPerObject = ( CB_PS_PER_OBJECT* )MappedResource.pData;
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pPSPerObject->m_vObjectColor = D3DXVECTOR4( 1, 1, 1, 1 );
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pd3dImmediateContext->Unmap( g_pcbPSPerObject, 0 );
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pd3dImmediateContext->PSSetConstantBuffers( g_iCBPSPerObjectBind, 1, &g_pcbPSPerObject );
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//Render
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SDKMESH_SUBSET* pSubset = NULL;
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D3D11_PRIMITIVE_TOPOLOGY PrimType;
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if( g_wireFrame )
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pd3dImmediateContext->RSSetState(g_pRasterizerStateWF);
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else
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pd3dImmediateContext->RSSetState(g_pRasterizerState);
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pd3dImmediateContext->PSSetSamplers( 0, 1, &g_pSamLinear );
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{
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// Get the subset
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pSubset = g_Mesh11.GetSubset( 0, 0 );
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pd3dImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
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pd3dImmediateContext->PSSetShaderResources(0,1,&texture2D_view);
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pd3dImmediateContext->DrawIndexed( (width*3*2+2 + height*width*3*2), 0, ( UINT )pSubset->VertexStart );
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}
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SAFE_RELEASE(pd3dImmediateContext);
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}
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void create_buffers(int width_, int height_)
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{
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width = width_;
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height = height_;
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created = true;
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cpu_buffer = new float[width*height*8];
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memset(cpu_buffer,0,width*height*8*4);
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// Set texture coordinates in output buffers
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for(int y = 0; y < height; y++)
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{
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for(int x = 0; x < width; x++)
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{
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cpu_buffer[y*8*width + x*8 + 6] = x/( (float)(width-1));
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cpu_buffer[y*8*width + x*8 + 7] = 1-y/((float)(height-1));
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}
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}
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D3D11_BUFFER_DESC bufferDesc;
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ZeroMemory(&bufferDesc, sizeof(bufferDesc));
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bufferDesc.Usage = D3D11_USAGE_DEFAULT;
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bufferDesc.ByteWidth = sizeof(vertex_struct)*width*height;
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bufferDesc.StructureByteStride = 0;//sizeof(vertex_struct);
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bufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER | D3D11_BIND_UNORDERED_ACCESS;
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bufferDesc.MiscFlags = 0;//D3D11_RESOURCE_MISC_BUFFER_STRUCTURED;
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bufferDesc.CPUAccessFlags = 0;
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vertex_struct *vertices = new vertex_struct[width*height];
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for(int y = 0; y < height; y++)
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{
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for(int x = 0; x < width; x++)
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{
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double coord = sin(x/5.0)*50;
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//coord = sin(y/);
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vertices[y*width+x].Pos = D3DXVECTOR3( (x/((float)(width-1)))*1000, coord, (y/((float)(height-1)))*1000);
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vertices[y*width+x].Normal = D3DXVECTOR3(1,0,0);
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vertices[y*width+x].Texcoord = D3DXVECTOR2(x/( (float)(width-1)), 1.f-y/((float)(height-1)));
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}
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}
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D3D11_SUBRESOURCE_DATA InitData;
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InitData.pSysMem = vertices;
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InitData.SysMemPitch = 0;
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InitData.SysMemSlicePitch = 0;
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HRESULT hr = g_pd3dDevice->CreateBuffer(&bufferDesc, &InitData, &pVB[0]);
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D3D11_UNORDERED_ACCESS_VIEW_DESC uavbuffer_desc;
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ZeroMemory(&uavbuffer_desc, sizeof(uavbuffer_desc));
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uavbuffer_desc.Format = DXGI_FORMAT_R32_FLOAT;
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uavbuffer_desc.ViewDimension = D3D11_UAV_DIMENSION_BUFFER;
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uavbuffer_desc.Buffer.NumElements = width*height*sizeof(vertex_struct)/4;
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hr = g_pd3dDevice->CreateUnorderedAccessView(pVB[0], &uavbuffer_desc, &g_pVB_UAV);
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//What is this vertex stride thing all about?
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Strides[0] = ( UINT )g_Mesh11.GetVertexStride( 0, 0 );
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Offsets[0] = 0;
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//unsigned int indices[] = {0,1,2, 1,3,2};
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unsigned int* indices = new unsigned int[width*3*2+2 + height*width*3*2];
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for(int y = 0; y < height-1; y++)
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{
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for(int x = 0; x < width-1; x++)
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{
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// *3 indices/triangle, *2 triangles/quad
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int baseIndex = (x + y*(width-1))*3*2;
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indices[baseIndex] = x + y*width;
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indices[baseIndex+1] = x+1 + y*width;
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indices[baseIndex+2] = x+width + y*width;
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indices[baseIndex+3] = x + 1 + y*width;
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indices[baseIndex+4] = x+(width+1) + y*width;
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indices[baseIndex+5] = x+width + y*width;
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}
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}
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bufferDesc.ByteWidth = sizeof(unsigned int)*(width*3*2+2 + height*width*3*2);
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bufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER;
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InitData.pSysMem = indices;
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hr = g_pd3dDevice->CreateBuffer(&bufferDesc, &InitData, &g_pIndexBuffer);
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bufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
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bufferDesc.Usage = D3D11_USAGE_DYNAMIC;
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bufferDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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bufferDesc.ByteWidth = sizeof(vertex_struct)*width*height;
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hr = g_pd3dDevice->CreateBuffer(&bufferDesc, NULL, &pVB_staging);
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delete [] indices;
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delete [] vertices;
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}
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};
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