Windows 10 64-bit, Nvidia gtx 570, Nvidia gtx 610
Broken: 2.77a, 9f39619 (latest 64-bit build)
Short description of error
Changing the diffuse colour of a material that is chosen as the render material for a hair particle system does not update the viewport colour of the particles unless that material is re-selected from the material_slot drop-down box in the particle system settings. This happens with the diffuse colour of a material in Blender Internal and the viewport colour of a material when using Cycles. This does not happen with 'Emitter' based particle systems, their viewport colour is updated immediately.
Exact steps for others to reproduce the error
- Change the diffuse colour for the cube's material to red (or any colour)
- No colour change in hair particles is visible.
- In the particle settings for the cube re-select 'Material' from the material_slot drop-down box in the 'Render' panel.
- Particles now show the correct, updated colour.
The same steps can be repeated for Cycles, changing the material's 'Viewport Colour' instead.