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MILERR_TOOMANYSHADERELEMNTS
MILERR_TOOMANYSHADERELEMNTS is a Windows Media Integration Layer (MIL) HRESULT. It indicates that the shader or effect graph exceeds complexity limits for the selected rendering path.
Diagnostic discriminator: Measure the generated effect or shader element count against the active feature-level limits. A reduced graph that compiles on the same adapter confirms a complexity limit; driver replacement is secondary unless the below-limit control also fails.
What to check for MILERR_TOOMANYSHADERELEMNTS
- Simplify the effect graph, combine redundant operations, or split the work into supported passes.
- Check dynamically generated shader parameters for unbounded loops, branches, or element counts.
- Test on the target adapter because shader limits can vary by feature level and driver.
Microsoft documentation about WPF hardware-accelerated rendering
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