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failed assertion `A command encoder is already encoding to this command buffer' #211

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failed assertion `A command encoder is already encoding to this command buffer'#211

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@LSQzzx
LSQzzx
opened on Aug 25, 2025
./opensplat ~/Downloads/banana -n 700
Using MPS
Reading 14241 points
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init_gsplat_metal_context: loading '/Users/username/Downloads/OpenSplat/build/default.metallib'
init_gsplat_metal_context: loaded '/Users/username/Downloads/OpenSplat/build/default.metallib', functions: compute_cov2d_bounds_kernel, project_gaussians_backward_kernel, get_tile_bin_edges_kernel, rasterize_backward_kernel, map_gaussian_to_intersects_kernel, nd_rasterize_backward_kernel, project_gaussians_forward_kernel, compute_sh_backward_kernel, compute_sh_forward_kernel, nd_rasterize_forward_kernel
init_gsplat_metal_context: load function nd_rasterize_backward_kernel with label: (null)
init_gsplat_metal_context: load function nd_rasterize_forward_kernel with label: (null)
init_gsplat_metal_context: load function rasterize_backward_kernel with label: (null)
init_gsplat_metal_context: load function project_gaussians_forward_kernel with label: (null)
init_gsplat_metal_context: load function project_gaussians_backward_kernel with label: (null)
init_gsplat_metal_context: load function compute_sh_forward_kernel with label: (null)
init_gsplat_metal_context: load function compute_sh_backward_kernel with label: (null)
init_gsplat_metal_context: load function compute_cov2d_bounds_kernel with label: (null)
init_gsplat_metal_context: load function map_gaussian_to_intersects_kernel with label: (null)
init_gsplat_metal_context: load function get_tile_bin_edges_kernel with label: (null)
-[AGXG16GFamilyCommandBuffer tryCoalescingPreviousComputeCommandEncoderWithConfig:nextEncoderClass:]:1091: failed assertion `A command encoder is already encoding to this command buffer'
[1]    30986 abort      ./opensplat ~/Downloads/banana -n 700

Activity

  1. LSQzzx commented on Aug 25, 2025

    @LSQzzx
    LSQzzx
    on Aug 25, 2025
    ContributorAuthor

    The problem is the following code at line 181 in model.cpp

    #if defined(USE_HIP) || defined(USE_CUDA) || defined(USE_MPS)
rgbs = SphericalHarmonics::apply(degreesToUse, viewDirs, colors);
#endif

  2. LSQzzx commented on Aug 26, 2025

    @LSQzzx
    LSQzzx
    on Aug 26, 2025
    ContributorAuthor

    this can fix this error #212

  3. Toray3 commented on Sep 3, 2025

    @Toray3
    Toray3
    on Sep 3, 2025

    thank for solving issue

  4. pierotofy
    closed this as completedon Sep 4, 2025
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