Commit Graph
1 Commits
Author SHA1 Message Date
swung0x48andClaude Fable 5 5ea49f3c50 [Feat] (MG_Backend/DirectGLES): support Flywheel indirect rendering
- Advertise ARB_gpu_shader5 / ARB_multi_bind / ARB_shading_language_420pack /
  ARB_vertex_attrib_binding / ARB_shader_image_size so LWJGL reports
  SUPPORTS_INDIRECT.
- New LowerDrawParametersPass demotes DrawIndex/BaseInstance/BaseVertex
  builtins to Private globals (mg_DrawID/mg_BaseInstance/mg_BaseVertex) for
  the ESSL transpile; SPIRV-Cross otherwise throws for ES profiles. The
  program manager promotes the emitted globals to uniforms and feeds them
  per (sub-)draw.
- Indirect draws now execute natively on the GPU (glDrawElementsIndirect /
  glDrawArraysIndirect per command) when an indirect buffer is bound, so
  compute-written command fields (Flywheel culling updates instanceCount)
  are honored; detects GL_EXT_base_instance and falls back to the CPU loop
  when the command's baseInstance cannot be consumed natively.
- Sync SSBO binding points for graphics draws, not just compute (Flywheel
  vertex shaders read instance data from SSBOs).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-08 13:33:05 +00:00