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添加体积阴影和光照：统一与Unity版本一致

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ssdfasd
2026-03-12 01:38:23 +08:00
parent 00f17ddd62
commit c7a8b50149
2 changed files with 77 additions and 17 deletions
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13
main.cpp
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@@ -290,7 +290,7 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
DirectX::XMFLOAT4X4 invViewProjMat;
DirectX::XMStoreFloat4x4(&invViewProjMat, invViewProj);
float volumeCBData[32];
float volumeCBData[36];
memcpy(volumeCBData, &invViewProjMat, sizeof(float) * 16);
volumeCBData[16] = -10.0f;
volumeCBData[17] = 73.0f;
@@ -303,9 +303,16 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
volumeCBData[24] = (float)nanoVDBData.worldBBox[3];
volumeCBData[25] = (float)nanoVDBData.worldBBox[4];
volumeCBData[26] = (float)nanoVDBData.worldBBox[5];
volumeCBData[27] = 2000;
volumeCBData[27] = 2000.0f; // MaxSteps as float
volumeCBData[28] = timeSinceAppStartInSecond * 0.3f; // RotationY
UpdateConstantBuffer(volumeCB, volumeCBData, sizeof(float) * 29);
volumeCBData[29] = 0.0f; // Pad0
volumeCBData[30] = 0.0f; // Pad1
volumeCBData[31] = 0.0f; // Pad2
volumeCBData[32] = 0.5f; // LightDir X
volumeCBData[33] = 0.8f; // LightDir Y
volumeCBData[34] = 0.3f; // LightDir Z
volumeCBData[35] = 8.0f; // LightSamples as float
UpdateConstantBuffer(volumeCB, volumeCBData, sizeof(float) * 36);
if (frameCount == 1) {
printf("Volume BBox: [%.2f, %.2f, %.2f] - [%.2f, %.2f, %.2f]\n",
volumeCBData[20], volumeCBData[21], volumeCBData[22],