Module gpu_marching_cubes 

GPU-accelerated marching cubes via compute shaders.

Three-pass pipeline:

1. Evaluate field at every grid point → 3D texture
2. Classify cells, compute vertex counts, prefix sum
3. Generate vertices using tri table → SSBO, draw via indirect

Performance target: 32³ grid in under 1ms on modern GPU.

Structs

FieldEvalUniforms

Uniform buffer for the field evaluation pass.

GpuFieldSource

Uniform buffer data for field source uploads. Sent to the GPU each frame as a small uniform/SSBO.

GpuMCStats

Per-frame GPU marching cubes statistics.

GpuMarchingCubes

GPU marching cubes pipeline state.

Constants

CLASSIFY_COMPUTE

Pass 2: Classify cells and count vertices.

FIELD_EVAL_COMPUTE

Pass 1: Evaluate field at every grid point.

VERTEX_GEN_COMPUTE

Pass 3: Generate vertices.