pub trait RenderFeature {
fn set_feature_index(index: RenderFeatureIndex);
fn feature_index() -> RenderFeatureIndex;
fn feature_debug_name() -> &'static str;
fn feature_debug_constants() -> &'static RenderFeatureDebugConstants;
}pub trait RenderFeature {
fn set_feature_index(index: RenderFeatureIndex);
fn feature_index() -> RenderFeatureIndex;
fn feature_debug_name() -> &'static str;
fn feature_debug_constants() -> &'static RenderFeatureDebugConstants;
}