Feature ToDo

Ideas for features to add.

See the Roadmap.

Ambient occlusion color node
- For specifying custom AO normal and using it as shader color
Gabor noise node
- Can generate many interesting patterns, might need good UI for parameters
Per object multiplier for motion blur shutter time
OpenColorIO integration
Use render visibility when selecting render layer preview in viewport
- Needs depsgraph fixes
Add back worley weights to voronoi node.
Access to object color and other object properties from nodes (support RNA paths?).
Option to include environment lighting in shadow pass.
UV project modifier special mapping for UV maps to avoid distortion.
Vertex color RGB+Alpha support (for dynamic paint, see T36832)
Support video texture auto-refresh for viewport's Texture and Material shadings, see T40295
Motion blur doesn't work together with autosplit T42315
Hair does not get proper color when emitted from vertices T42706
Using Triangles for Hair loosing intercept information T43625
Depth pass could be improved for volume/smoke T43836
Multiple steps for object motion blur T44005
Handling multiple image datablocks pointing to the same image on the disk T45124
Make duplicator visibility policy matching Blender Internal T43590
Look into improved UV projection from view support T46014
Make Hair settings per particle system instead of per scene.
Voronoi texture is biased towards coordinates T50658
Clipping doesn't work in GLSL viewport T53468

Select individual GPUs for rendering in user preferences.
Node link menu in properties editor has become too big, needs to get submenus
Properties editor UI should be improved, perhaps:
- Add outliner like alternating lines
- Some better indication of hierarchy that doesn't take up much horizontal space
Better auto position when adding nodes (with multiple inputs nodes overlap)
Auto sync BSDF color and viewport color
- Needs some algorithm to deal with mix shader hierarchies, to find the good diffuse node
Decouple lamp size for hemi/sun lamp and point/spot/area, the units for the former are wrong
Show watts, watts/m^2 units in the UI
Hide color component for node sockets in the UI

Indirect light influence control
SIMD for triangle intersection
Spherical triangle light sampling for mesh lights
Enable selective features compilation for CUDA and shader/baking kernels of OpenCL.

Pause rendering when 3d view gets hidden
Progressive Animation Rendering (details)
Render pause button
Keep scene in memory and sync between F12 render (avoid image/mesh/.. reloading)
Allow user-defined attribute requests associated with OSL code (T39415)
Better support of ray visibility of volumes (T48512)

Dev:Source/Render/Cycles/ToDo