Blender Git Loki

Cleanup compiler warnings

added the non-occluded mode

Merge branch 'blender2.8' into greasepencil-object

Indicate to users when manual conversion of Eevee materials is needed

We now shows a report error when user opens a file that need fixing.
It's fine(ish) to not do doversion. It's not fine to not communicate that.

Merge branch 'master' into id_copy_refactor

Merge branch '28' into custom-manipulators

Manipulator: target property definitions

Changes from custom-manipulator branch.

- use property type definitions.
- add property free callback.
- move properties into the wmManipulator struct (over alloc).
- use array length from property types instead of arg passing.

Fix T51867: Insert Keyframe I - L / I - R / I - S key combos are broken.

Reorder keyingsets registration order, since it also afects order of I
menu options, better show most used ones first, pure alphabetical order
is not great here... Will likely break some muscle memory though. :|

Based on D2720 by Carlo Andreacchio (@candreacchio), thanks.

Fix T51863: CompositorNodeSwitchView have the wrong rna API

Although the original report was about the docs, the real issue was in
the API.

My original commit started from a copy-paste from the Switch
Node. However I don't use custom1 for thew Switch View node.

The docs is slightly incomplete since it would be nice to mention the
views here. Or maybe even expose them via Python. But honestly they are
generated depending on the scene multi-view settings.

Remove counter of set properties, just check when needed

Merge branch '28' into custom-manipulators

RNA/Python API for defining py-manipulator callbacks

Cleanup: remove redundant user_data arg

This is already accessible from the property

Remove unneeded length arg

Was also missing assignment to wmManipulatorProperty.type

Eevee: Ambient Occlusion: Enable Multibounce approximation and Change influence factor.

Making the influence a power for easy tuning. Works like a contrast knob.

Eevee: Ambient Occlusion: Initial implementation.

Implement GTAO (Ground Truth Ambient Occlusion) which is a special case of Horizon Based Ambient Occlusion that is more physically accurate.
Also add a bent normal option to sample indirect irradiance (diffuse lighting) with the least occluded direction.

Eevee: Improve material variation managment.

- Unify variations between default shaders and material shader.
- Only create default shader passes if needed.

Downside is that we have a big array of passes and shading grp in the vedata ... And it will double in size each time a new variation flag is added.

Eevee: Ambient Occlusion: Add UI properties.

Eevee: Minmax Depth Pyramid.

This commit introduce the computation of a depth pyramid containing min and max depth values of the original depth buffer.
This is useful for Clustered Light Culling but also for raytracing on the depth buffer (SSR).
It's also usefull to have to fetch higher mips in order to improve texture cache usage.

As of now, 1st mip (highest res) is half the resolution of the depth buffer, but everything is already done to be able to make a fullres copy of the depth buffer in the 1st mip instead of downsampling.
Also, the texture used is RG_32F which is a too much but enough to cover the 24bits of the depth buffer. Reducing the texture size would make things quite faster.

GPUFramebuffer: Add recursive downsampling function.

This special case function enables rendering to a miplevel while using the miplevels above as texture input.
This is needed for some algorithm (i.e. creating a min-max depth pyramid texture).