ssdfasd
fa50179d00
完成步骤2：读取 NanoVDB 密度并渲染体积云 修改内容： 1. NanoVDBLoader: 添加 voxel_size 输出用于调试 2. volume.hlsl: 实现完整的 ray marching 体积渲染 - 初始化 NanoVDB 访问器 - 密度采样函数 - 光线步进和累积 3. wireframe.hlsl: 新增边界框线框着色器 4. main.cpp: - 移动相机到云的外部 - 添加独立的常量缓冲区避免冲突 - 同时渲染体积云和边界框 已知问题： - 边界框位置计算需要改进 - bunny.nvdb 渲染效果不佳 - 需要进一步优化密度和步进参数
356 lines
15 KiB
C++
356 lines
15 KiB
C++
#include <windows.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "BattleFireDirect.h"
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#include "StaticMeshComponent.h"
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#include "stbi/stb_image.h"
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#include "Utils.h"
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#include "NanoVDBLoader.h"
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#pragma comment(lib,"d3d12.lib")
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#pragma comment(lib,"dxgi.lib")
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#pragma comment(lib,"d3dcompiler.lib")
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#pragma comment(lib,"winmm.lib")
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LPCWSTR gWindowClassName = L"BattleFire";
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LRESULT CALLBACK WindowProc(HWND inHWND, UINT inMSG, WPARAM inWParam, LPARAM inLParam) {
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switch (inMSG) {
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case WM_CLOSE:
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PostQuitMessage(0);
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break;
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}
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return DefWindowProc(inHWND, inMSG, inWParam, inLParam);
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}
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int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int inShowCmd) {
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AttachConsole(ATTACH_PARENT_PROCESS);
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freopen("CONOUT$", "w", stdout);
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freopen("CONOUT$", "w", stderr);
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printf("XCVolumeRenderer started\n");
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printf("Initializing D3D12...\n");
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//register
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WNDCLASSEX wndClassEx;
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wndClassEx.cbSize = sizeof(WNDCLASSEX);
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wndClassEx.style = CS_HREDRAW | CS_VREDRAW;
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wndClassEx.cbClsExtra = NULL;//class
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wndClassEx.cbWndExtra = NULL;//instance
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wndClassEx.hInstance = hInstance;
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wndClassEx.hIcon = LoadIcon(NULL, IDI_APPLICATION);
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wndClassEx.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
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wndClassEx.hCursor = LoadCursor(NULL, IDC_ARROW);
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wndClassEx.hbrBackground = NULL;
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wndClassEx.lpszMenuName = NULL;
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wndClassEx.lpszClassName = gWindowClassName;
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wndClassEx.lpfnWndProc = WindowProc;
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if (!RegisterClassEx(&wndClassEx)) {
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MessageBox(NULL, L"Register Class Failed!", L"Error", MB_OK | MB_ICONERROR);
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return -1;
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}
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//create
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int viewportWidth = 1280;
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int viewportHeight = 720;
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RECT rect;
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rect.left = 0;
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rect.top = 0;
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rect.right = viewportWidth;
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rect.bottom = viewportHeight;
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AdjustWindowRect(&rect, WS_OVERLAPPEDWINDOW, FALSE);
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int windowWidth = rect.right - rect.left;
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int windowHeight = rect.bottom - rect.top;
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HWND hwnd = CreateWindowEx(NULL,
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gWindowClassName,
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L"My Render Window",
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WS_OVERLAPPEDWINDOW,
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CW_USEDEFAULT, CW_USEDEFAULT,
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windowWidth, windowHeight,
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NULL,
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NULL,
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hInstance,
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NULL);
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if (!hwnd) {
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MessageBox(NULL, L"Create Window Failed!", L"Error", MB_OK | MB_ICONERROR);
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return -1;
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}
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//show
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InitD3D12(hwnd, 1280, 720);
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printf("D3D12 initialized\n");
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ID3D12GraphicsCommandList* commandList = GetCommandList();
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ID3D12CommandAllocator* commandAllocator = GetCommandAllocator();
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NanoVDBData nanoVDBData = {};
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LoadNanoVDB("Res/NanoVDB/cloud.nvdb", nanoVDBData, commandList, commandAllocator);
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printf("NanoVDB loaded: %llu bytes\n", (unsigned long long)nanoVDBData.byteSize);
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printf("NanoVDB BBox: [%.2f, %.2f, %.2f] - [%.2f, %.2f, %.2f]\n",
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nanoVDBData.worldBBox[0], nanoVDBData.worldBBox[1], nanoVDBData.worldBBox[2],
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nanoVDBData.worldBBox[3], nanoVDBData.worldBBox[4], nanoVDBData.worldBBox[5]);
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float bboxMin[3] = { (float)nanoVDBData.worldBBox[0], (float)nanoVDBData.worldBBox[1], (float)nanoVDBData.worldBBox[2] };
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float bboxMax[3] = { (float)nanoVDBData.worldBBox[3], (float)nanoVDBData.worldBBox[4], (float)nanoVDBData.worldBBox[5] };
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float bboxCenter[3] = { (bboxMin[0] + bboxMax[0]) / 2, (bboxMin[1] + bboxMax[1]) / 2, (bboxMin[2] + bboxMax[2]) / 2 };
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float bboxSize[3] = { bboxMax[0] - bboxMin[0], bboxMax[1] - bboxMin[1], bboxMax[2] - bboxMin[2] };
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printf("BBox center: [%.2f, %.2f, %.2f], size: [%.2f, %.2f, %.2f]\n",
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bboxCenter[0], bboxCenter[1], bboxCenter[2],
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bboxSize[0], bboxSize[1], bboxSize[2]);
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float cubeVertices[] = {
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-0.5f, -0.5f, -0.5f,
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0.5f, -0.5f, -0.5f,
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0.5f, 0.5f, -0.5f,
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-0.5f, 0.5f, -0.5f,
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-0.5f, -0.5f, 0.5f,
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0.5f, -0.5f, 0.5f,
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0.5f, 0.5f, 0.5f,
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-0.5f, 0.5f, 0.5f,
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};
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uint32_t cubeIndices[] = {
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0, 1, 1, 2, 2, 3, 3, 0,
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4, 5, 5, 6, 6, 7, 7, 4,
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0, 4, 1, 5, 2, 6, 3, 7
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};
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ID3D12Resource* cubeVBO = CreateBufferObject(commandList, cubeVertices, sizeof(cubeVertices), D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER);
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ID3D12Resource* cubeIBO = CreateBufferObject(commandList, cubeIndices, sizeof(cubeIndices), D3D12_RESOURCE_STATE_INDEX_BUFFER);
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printf("Cube mesh created\n");
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float quadVertices[] = {
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-1.0f, -1.0f, 0.0f, 0.0f,
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1.0f, -1.0f, 1.0f, 0.0f,
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1.0f, 1.0f, 1.0f, 1.0f,
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-1.0f, 1.0f, 0.0f, 1.0f,
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};
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uint32_t quadIndices[] = { 0, 1, 2, 0, 2, 3 };
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ID3D12Resource* quadVBO = CreateBufferObject(commandList, quadVertices, sizeof(quadVertices), D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER);
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ID3D12Resource* quadIBO = CreateBufferObject(commandList, quadIndices, sizeof(quadIndices), D3D12_RESOURCE_STATE_INDEX_BUFFER);
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printf("Quad mesh created\n");
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StaticMeshComponent staticMeshComponent;
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staticMeshComponent.InitFromFile(commandList, "Res/Model/Sphere.lhsm");
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printf("Mesh loaded\n");
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ID3D12RootSignature* rootSignature = InitRootSignature();
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printf("Root signature created\n");
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D3D12_SHADER_BYTECODE vs,gs,ps;
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CreateShaderFromFile(L"Res/Shader/gs.hlsl", "MainVS", "vs_5_1", &vs);
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CreateShaderFromFile(L"Res/Shader/gs.hlsl", "MainGS", "gs_5_1", &gs);
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CreateShaderFromFile(L"Res/Shader/gs.hlsl", "MainPS", "ps_5_1", &ps);
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ID3D12PipelineState*pso=CreatePSO(rootSignature, vs, ps, gs);
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printf("PSO created\n");
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ID3D12RootSignature* volumeRootSignature = InitVolumeRootSignature();
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printf("Volume root signature created\n");
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D3D12_SHADER_BYTECODE volumeVS, volumePS;
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memset(&volumeVS, 0, sizeof(volumeVS));
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memset(&volumePS, 0, sizeof(volumePS));
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CreateShaderFromFile(L"Res/Shader/volume.hlsl", "MainVS", "vs_5_1", &volumeVS);
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CreateShaderFromFile(L"Res/Shader/volume.hlsl", "MainPS", "ps_5_1", &volumePS);
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printf("Volume VS: ptr=%p, size=%zu\n", volumeVS.pShaderBytecode, volumeVS.BytecodeLength);
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printf("Volume PS: ptr=%p, size=%zu\n", volumePS.pShaderBytecode, volumePS.BytecodeLength);
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ID3D12PipelineState* quadPSO = CreateQuadPSO(volumeRootSignature, volumeVS, volumePS);
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if (!quadPSO) {
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printf("Quad PSO creation failed!\n");
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} else {
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printf("Quad PSO created: %p\n", quadPSO);
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}
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D3D12_SHADER_BYTECODE wireframeVS, wireframePS;
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memset(&wireframeVS, 0, sizeof(wireframeVS));
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memset(&wireframePS, 0, sizeof(wireframePS));
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CreateShaderFromFile(L"Res/Shader/wireframe.hlsl", "MainVS", "vs_5_1", &wireframeVS);
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CreateShaderFromFile(L"Res/Shader/wireframe.hlsl", "MainPS", "ps_5_1", &wireframePS);
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printf("Wireframe VS: ptr=%p, size=%zu\n", wireframeVS.pShaderBytecode, wireframeVS.BytecodeLength);
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printf("Wireframe PS: ptr=%p, size=%zu\n", wireframePS.pShaderBytecode, wireframePS.BytecodeLength);
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ID3D12PipelineState* volumePSO = CreateVolumePSO(volumeRootSignature, wireframeVS, wireframePS);
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if (!volumePSO) {
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printf("Volume PSO creation failed!\n");
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} else {
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printf("Volume PSO created: %p\n", volumePSO);
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}
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ID3D12Resource* volumeCB = CreateConstantBufferObject(65536);
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ID3D12Resource* wireframeCB = CreateConstantBufferObject(65536);
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ID3D12Resource* cb = CreateConstantBufferObject(65536);//1024x64(4x4)
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DirectX::XMMATRIX projectionMatrix=DirectX::XMMatrixPerspectiveFovLH(
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(45.0f*3.141592f)/180.0f,1280.0f/720.0f,0.1f,1000.0f);
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DirectX::XMMATRIX viewMatrix = DirectX::XMMatrixLookAtLH(
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DirectX::XMVectorSet(-10.0f, 73.0f, -600.0f, 1.0f),
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DirectX::XMVectorSet(-10.0f, 73.0f, 0.0f, 1.0f),
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DirectX::XMVectorSet(0.0f, 1.0f, 0.0f, 1.0f));
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DirectX::XMMATRIX modelMatrix = DirectX::XMMatrixTranslation(0.0f,0.0f,5.0f);
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//modelMatrix *= DirectX::XMMatrixRotationZ(90.0f*3.141592f/180.0f);
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DirectX::XMFLOAT4X4 tempMatrix;
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float matrices[64];
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DirectX::XMStoreFloat4x4(&tempMatrix, projectionMatrix);
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memcpy(matrices, &tempMatrix, sizeof(float) * 16);
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DirectX::XMStoreFloat4x4(&tempMatrix, viewMatrix);
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memcpy(matrices+16, &tempMatrix, sizeof(float) * 16);
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DirectX::XMStoreFloat4x4(&tempMatrix, modelMatrix);
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memcpy(matrices + 32, &tempMatrix, sizeof(float) * 16);;
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DirectX::XMVECTOR determinant;
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DirectX::XMMATRIX inverseModelMatrix = DirectX::XMMatrixInverse(&determinant, modelMatrix);
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if (DirectX::XMVectorGetX(determinant) != 0.0f) {
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DirectX::XMMATRIX normalMatrix = DirectX::XMMatrixTranspose(inverseModelMatrix);
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DirectX::XMStoreFloat4x4(&tempMatrix, modelMatrix);
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memcpy(matrices + 48, &tempMatrix, sizeof(float) * 16);;
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}
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UpdateConstantBuffer(cb, matrices, sizeof(float) * 64);
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ID3D12Resource* sb = CreateConstantBufferObject(65536);//1024x64(4x4)
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struct MaterialData {
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float r;
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};
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MaterialData* materialDatas = new MaterialData[3000];
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for (int i=0;i<3000;i++){
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materialDatas[i].r = srandom() * 0.1f + 0.1f;//0.0~1.0
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}
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UpdateConstantBuffer(sb, materialDatas, sizeof(MaterialData) * 3000);
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int imageWidth, imageHeight,imageChannel;
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stbi_uc* pixels = stbi_load("Res/Image/earth_d.jpg", &imageWidth, &imageHeight, &imageChannel, 4);
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printf("Texture loaded: %dx%d\n", imageWidth, imageHeight);
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ID3D12Resource* texture = CreateTexture2D(commandList, pixels,
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imageWidth * imageHeight * imageChannel, imageWidth, imageHeight,DXGI_FORMAT_R8G8B8A8_UNORM);
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delete[]pixels;
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ID3D12Device* d3dDevice = GetD3DDevice();
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ID3D12DescriptorHeap* srvHeap = nullptr;
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D3D12_DESCRIPTOR_HEAP_DESC d3dDescriptorHeapDescSRV = {};
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d3dDescriptorHeapDescSRV.NumDescriptors = 3;
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d3dDescriptorHeapDescSRV.Type = D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
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d3dDescriptorHeapDescSRV.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
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d3dDevice->CreateDescriptorHeap(&d3dDescriptorHeapDescSRV, IID_PPV_ARGS(&srvHeap));
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ID3D12DescriptorHeap* descriptorHeaps[] = {srvHeap};
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D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
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srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
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srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
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srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
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srvDesc.Texture2D.MipLevels = 1;
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D3D12_CPU_DESCRIPTOR_HANDLE srvHeapPtr = srvHeap->GetCPUDescriptorHandleForHeapStart();
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d3dDevice->CreateShaderResourceView(texture, &srvDesc, srvHeapPtr);
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srvHeapPtr.ptr += d3dDevice->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
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EndCommandList();
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WaitForCompletionOfCommandList();
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printf("All resources uploaded to GPU\n");
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ShowWindow(hwnd, inShowCmd);
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UpdateWindow(hwnd);
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printf("Window shown, entering render loop\n");
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float color[] = {0.5f,0.5f,0.5f,1.0f};
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MSG msg;
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DWORD last_time = timeGetTime();
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DWORD appStartTime = last_time;
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int frameCount = 0;
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while (true){
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ZeroMemory(&msg, sizeof(MSG));
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if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) {
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if (msg.message == WM_QUIT) {
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break;
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}
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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} else {
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//rendering
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WaitForCompletionOfCommandList();
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DWORD current_time = timeGetTime();//ms
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DWORD frameTime = current_time - last_time;
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DWORD timeSinceAppStartInMS = current_time - appStartTime;
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last_time = current_time;
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float frameTimeInSecond = float(frameTime) / 1000.0f;//second
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float timeSinceAppStartInSecond = float(timeSinceAppStartInMS) / 1000.0f;
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color[0] = timeSinceAppStartInSecond;
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commandAllocator->Reset();
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commandList->Reset(commandAllocator, nullptr);
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BeginRenderToSwapChain(commandList);
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//draw
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commandList->SetPipelineState(pso);
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commandList->SetGraphicsRootSignature(rootSignature);
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commandList->SetDescriptorHeaps(_countof(descriptorHeaps),descriptorHeaps);
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commandList->SetGraphicsRootConstantBufferView(0, cb->GetGPUVirtualAddress());
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commandList->SetGraphicsRoot32BitConstants(1, 4, color, 0);
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commandList->SetGraphicsRootDescriptorTable(2, srvHeap->GetGPUDescriptorHandleForHeapStart());
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commandList->SetGraphicsRootShaderResourceView(3, sb->GetGPUVirtualAddress());
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commandList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
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if (frameCount == 1) {
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printf("Drawing mesh with %d vertices, VBO=%p, subMeshes=%zu\n",
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staticMeshComponent.mVertexCount, staticMeshComponent.mVBO, staticMeshComponent.mSubMeshes.size());
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}
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staticMeshComponent.Render(commandList);
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DirectX::XMMATRIX viewProj = viewMatrix * projectionMatrix;
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DirectX::XMMATRIX invViewProj = DirectX::XMMatrixInverse(nullptr, viewProj);
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DirectX::XMFLOAT4X4 invViewProjMat;
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DirectX::XMStoreFloat4x4(&invViewProjMat, invViewProj);
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float volumeCBData[32];
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memcpy(volumeCBData, &invViewProjMat, sizeof(float) * 16);
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volumeCBData[16] = -10.0f;
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volumeCBData[17] = 73.0f;
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volumeCBData[18] = -600.0f;
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volumeCBData[19] = 0.01f; // DensityScale
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volumeCBData[20] = (float)nanoVDBData.worldBBox[0];
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volumeCBData[21] = (float)nanoVDBData.worldBBox[1];
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volumeCBData[22] = (float)nanoVDBData.worldBBox[2];
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volumeCBData[23] = 0.5f; // StepSize
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volumeCBData[24] = (float)nanoVDBData.worldBBox[3];
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volumeCBData[25] = (float)nanoVDBData.worldBBox[4];
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volumeCBData[26] = (float)nanoVDBData.worldBBox[5];
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volumeCBData[27] = 128;
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UpdateConstantBuffer(volumeCB, volumeCBData, sizeof(float) * 28);
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if (frameCount == 1) {
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printf("Volume BBox: [%.2f, %.2f, %.2f] - [%.2f, %.2f, %.2f]\n",
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volumeCBData[20], volumeCBData[21], volumeCBData[22],
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volumeCBData[24], volumeCBData[25], volumeCBData[26]);
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}
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if (quadPSO) {
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commandList->SetPipelineState(quadPSO);
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commandList->SetGraphicsRootSignature(volumeRootSignature);
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commandList->SetGraphicsRootConstantBufferView(0, volumeCB->GetGPUVirtualAddress());
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commandList->SetGraphicsRootShaderResourceView(1, nanoVDBData.gpuBuffer->GetGPUVirtualAddress());
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commandList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
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commandList->IASetVertexBuffers(0, 1, &D3D12_VERTEX_BUFFER_VIEW{ quadVBO->GetGPUVirtualAddress(), sizeof(quadVertices), sizeof(float) * 4 });
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commandList->IASetIndexBuffer(&D3D12_INDEX_BUFFER_VIEW{ quadIBO->GetGPUVirtualAddress(), sizeof(quadIndices), DXGI_FORMAT_R32_UINT });
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commandList->DrawIndexedInstanced(6, 1, 0, 0, 0);
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}
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DirectX::XMMATRIX bboxScale = DirectX::XMMatrixScaling(bboxSize[0], bboxSize[1], bboxSize[2]);
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DirectX::XMMATRIX bboxTranslate = DirectX::XMMatrixTranslation(bboxCenter[0], bboxCenter[1], bboxCenter[2]);
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DirectX::XMMATRIX bboxModel = bboxScale * bboxTranslate;
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DirectX::XMMATRIX bboxViewProj = bboxModel * viewMatrix * projectionMatrix;
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DirectX::XMFLOAT4X4 bboxViewProjMat;
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DirectX::XMStoreFloat4x4(&bboxViewProjMat, bboxViewProj);
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float wireframeCBData[16];
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memcpy(wireframeCBData, &bboxViewProjMat, sizeof(float) * 16);
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UpdateConstantBuffer(wireframeCB, wireframeCBData, sizeof(float) * 16);
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if (volumePSO) {
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commandList->SetPipelineState(volumePSO);
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commandList->SetGraphicsRootSignature(volumeRootSignature);
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commandList->SetGraphicsRootConstantBufferView(0, wireframeCB->GetGPUVirtualAddress());
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commandList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_LINELIST);
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commandList->IASetVertexBuffers(0, 1, &D3D12_VERTEX_BUFFER_VIEW{ cubeVBO->GetGPUVirtualAddress(), 8 * 3 * sizeof(float), sizeof(float) * 3 });
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commandList->IASetIndexBuffer(&D3D12_INDEX_BUFFER_VIEW{ cubeIBO->GetGPUVirtualAddress(), 24 * sizeof(uint32_t), DXGI_FORMAT_R32_UINT });
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commandList->DrawIndexedInstanced(24, 1, 0, 0, 0);
|
|
}
|
|
|
|
EndRenderToSwapChain(commandList);
|
|
EndCommandList();
|
|
SwapD3D12Buffers();
|
|
frameCount++;
|
|
if (frameCount <= 3) {
|
|
printf("Frame %d rendered\n", frameCount);
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
} |