Alex Harrison
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alex-for-real.bsky.social
Alex Harrison
@alex-for-real.bsky.social
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alex-for-real.bsky.social
Impl detail: I reserve the zero offset for the nil buffer which will bind a buffer of nil values to that slot. So I can simply leave the gpu buffer offsets as zero if they aren't passed in from the model descriptor.
December 3, 2025 at 9:45 PM
alex-for-real.bsky.social
This makes it easy for a model/skeleton/etc. to live for a scene, a frame, an entity's lifetime, etc.

Allocations on both the CPU side and GPU side will be cleaned up quickly and automatically. No need for explicit and fine-grained destructors from the user. Lifetimes are very simple to manage.
E_Model *E_Model_New(E_Arena *arena, E_ModelDesc *desc) { E_Model *model = E_Arena_Alloc(arena, E_Model); *model = (E_Model) { .parent_arena = arena, .vertex_count = desc->vertex_count, .index_count = desc->index_count, }; E_ArenaGPUUploader uploader = E_Arena_StartGPUUpload(arena); if (desc->vertices) model->vertices_offset = E_Arena_GPUUploadCopy(&uploader, desc->vertices, desc->vertex_count * sizeof(*desc->vertices)); if (desc->vertex_colours) model->vertex_colours_offset = E_Arena_GPUUploadCopy(&uploader, desc->vertex_colours, desc->vertex_count * sizeof(*desc->vertex_colours)); if (desc->vertex_normals) model->vertex_normals_offset = E_Arena_GPUUploadCopy(&uploader, desc->vertex_normals, desc->vertex_count * sizeof(*desc->vertex_normals)); if (desc->vertex_bone_weights) model->vertex_bone_weights_offset = E_Arena_GPUUploadCopy(&uploader, desc->vertex_bone_weights, desc->vertex_count * sizeof(*desc->vertex_bone_weights)); if (desc->indices) model->indices_offset = E_Arena_GPUUploadCopy(&uploader, desc->indices, desc->index_count * sizeof(*desc->indices)); E_Arena_FinishGPUUpload(&uploader); return model; }
December 3, 2025 at 9:42 PM
alex-for-real.bsky.social
yes, but it's from your 20s until you die
October 3, 2025 at 3:13 AM
alex-for-real.bsky.social
Yeah go for it! But I think you should make it in pure html and css first before you get lost in the frontend jungle.
May 30, 2025 at 2:25 AM