WMS hillshade's rendering is different for geographic vs projected layers

[micpilon]

When using the default zFactor in a GetMap request, the estimation of the zFactor happens to be incorrect for SRS that are projected. An adjustment should be made if the native layer is ingested with meters units rather than degrees. https://github.com/geotrellis/maml/blob/4000bd127cf756b002e295a0e69e94d2c0cf2960/jvm/src/main/scala/eval/directive/FocalDirectives.scala#L107-L112

WebMercator

WGS84