Blender 2.80 introduced new MatCaps contributed by the community, bringing much more variation since they are now multiplied on top the object colors instead of taking over the whole shading like in 2.7.
Based on user feedback, it seems that some MatCaps are a bit too metallic to make them useful (especially for sculpting), so a new solution is coming for Blender 2.81: MatCaps can now have their specular lighting turned off!
How Does it Work
Simple. If the MatCap is prepared properly, the “Specular Lighting” checkbox – that is already available for Studio lighting – will be available for that MatCap.
Under the Hood
Blender 2.80 uses EXR files as MatCaps. In 2.81, support for multi-layer EXR was added. It basically looks at the EXR file for a layer with the name
When the Call for Content was made, providing the source .blend file wasn’t a requisite (we only asked for the EXR image). Without the .blend file the MatCaps can’t just be re-rendered by the developers with new passes and stuff.
Re-render! At least some of them, not all of the MatCaps make sense to re-render since they are either not specular or serve different purposes.
All you need is a little compositing to mix the passes and output a MultiLayer EXR file with two layers:
specular. Does it sound complicated? Download this ready-to-use demo file and copy over your lighting/shading.
matcap_demo_02.blend. The first one had the Diffuse slider to 0.0 by mistake, instead of 1.0.
That’s all! Same guidelines as the last time apply, only this time provide the source .blend file so they are future proof.