Realistic Aerial VDB Explosions for Cinematics.

10 Realistic Aerial VDB Explosions for Your Cinematics!

>>> Video Demonstration <<<

Features:

•  10 Premade VDB Simulations.
• Ready to be dropped in your Level or Sequencer.
• High-quality simulations, 500–1000 million voxels.
• Customizable material for VDB is included.
• Density control
• Emission control
• Fire color shift control
• Temperature control
• Smoke color control
• Scattering control
• Smoke density control
• Emissive tint control

IMPORTANT: To see the full quality, set the "Streaming Mip Bias" in Heterogeneous Volume to 0, but be aware that it may affect your performance.

VDB`s Total Size: 15GB. 

To be able to see explosions in Path Tracing in UE5.3 use this console command: r.PathTracing.HeterogeneousVolumes 1

If your explosions are disappearing on a far distance use this console command: r.HeterogeneousVolumes.MaxTraceDistance 10000000

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• All explosion parameters are controlled from material instances in folders AE_1, AE_2, ... etc.
• There are two of my presets in each folder with Explosion: one for Lumen, "MI_AE" and one for Path Tracing, "MI_AE_Path_Tracing" , but you can modify both setups to your liking.
• You can use the material included in material folder "M_VDB" or use the Unreal Engine 5 default material. (See the tutorials below.)
• All explosions can be slowed down, speeded up, or scaled.

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Tutorials:

How to Add Simulations to Your Level or Sequence.

How to use Unreal Engine 5 default material.

How to set up Path Tracing rendering of VDB.

More Useful console commands for Heterogeneous Volumes (VDB):

• r.HeterogeneousVolumes.OrthoGrid (default = 1)

Enables the world-space voxel grid.

• r.HeterogeneousVolumes.OrthoGrid.MaxBottomLevelMemoryInMegabytes (default = 128)

Determines the memory limit (in megabytes) for each bottom-level voxel grid used for voxelization (emission, extinction, and albedo). The recommended cinematic default is 512.

• r.HeterogeneousVolumes.OrthoGrid.ShadingRate ([default = 4)

Determines the active shading rate of the world-space voxel grid, where the value roughly corresponds to pixel width. Lower shading rates create a higher-quality tessellation, but require more memory. The recommended cinematic default is 1.

• r.HeterogeneousVolumes.FrustumGrid (default = 1)

Enables the frustum-aligned voxel grid.

• r.HeterogeneousVolumes.FrustumGrid.MaxBottomLevelMemoryInMegabytes (default = 128)

Determines the memory limit (in megabytes) for each bottom-level voxel grid used for voxelization (emission, extinction, and albedo). The recommended cinematic default is 512.

• r.HeterogeneousVolumes.FrustumGrid.ShadingRate (default = 4)

Determines the active shading rate of the frustum-aligned voxel grid, where the value roughly corresponds to pixel width. Lower shading rates create a higher-quality tessellation, but require more memory. The recommended cinematic default is 1.

• r.HeterogeneousVolumes.FrustumGrid.DepthSliceCount (default = 512)

Determines the number of depth slices of the frustum-aligned voxel grid, when rendered with a shading rate of 1. Rendering with a shading rate of 2 will correspond to emitting a Depth Slice Count of 256. The recommended cinematic default is 512/1024.

• r.HeterogeneousVolumes.Tessellation.FarPlaneAutoTransition (default = 1)

Truncates the far-plane of the frustum-aligned grid when the voxel size of the frustum-aligned voxel grid corresponds to the voxel size of the world-space voxel grid.