Blender Git Loki

New Grid: small modification

Fix wrong coord picked when display only one axis.
Small optimizations here and there.

Draw Engines: Make g_data struct part of the viewport storage

This makes viewport cache construction independant from each others and will allow multithread down the road.

Draw Manager: New debug timers

Both CPU time and GPU time are printed to spot bottlenecks.

GPU Timers works only if cache is enabled.

Draw Manager: Make Viewport Data passed by the manager call.

Keep base layer around for forward compatibility in 2.78

Correct for Py3.5

Cycles: Make shadow catcher an optional feature for OpenCL

Solves majority of speed regression on AMD OpenCL.

Cycles: Add OpenCL support for shadow catcher feature

The title says it all actually.

Cycles: Remove ccl_addr_space from RNG passed to functions

Simplifies code quite a bit, making it shorter and easier to extend.
Currently no functional changes for users, but is required for the
upcoming work of shadow catcher support with OpenCL.

Cycles: First implementation of shadow catcher

It uses an idea of accumulating all possible light reachable across the
light path (without taking shadow blocked into account) and accumulating
total shaded light across the path. Dividing second figure by first one
seems to be giving good estimate of the shadow.

In fact, to my knowledge, it's something really similar to what is
happening in the denoising branch, so we are aligned here which is good.

The workflow is following:

- Create an object which matches real-life object on which shadow is
to be catched.

- Create approximate similar material on that object.

This is needed to make indirect light properly affecting CG objects
in the scene.

- Mark object as Shadow Catcher in the Object properties.

Ideally, after doing that it will be possible to render the image and
simply alpha-over it on top of real footage.

OpenGL: remove gpuMatrixBegin3D_legacy function

It helped during the transition, but we don't need this anymore. Evolution of T49450

OpenGL: simplify initial state

Client vertex array state is deprecated, and these are the default values anyway.

No need to bind any basic shader. Let drawing code decide which shader it wants to use.

Part of T49165 (general OpenGL upgrade)

cleanup unused GPU includes

OpenGL: remove matrix manip from framebuffer setup

It doesn't really belong here... Any code using framebuffers will set up its own matrices.

Part of T49450

OpenGL: prepare GLSL for version 3.3

- use in/out instead of attribute/varying
- use named output instead of gl_FragColor
- use texture() instead of the multitude of older texture sampling functions

The #if __VERSION__ == 120 paths (needed on Mac) will be removed after we switch to 3.3 core profile.

Part of T49165 (general OpenGL upgrade)

add missing matrix uniforms to material shader

My bad again! Failed to test this part of 4c08c5b192415190ab8b11637d8dc4f2a66c2ddf

fix shadow map shader input

My bad! Messed up the conversion from ftransform -- 4c08c5b192415190ab8b11637d8dc4f2a66c2ddf

Cycles: Optimize shaders earlier to skip unneccessary attributes for noninteractive rendering

Before, Cycles would first sync the shader exactly as shown in the UI, then determine and sync the used attributes and later optimize the shader.
Therefore, even completely unconnected nodes would cause unneccessary attributes to be synced.

The reason for this is to avoid frequent resyncs when editing shaders interactively, but it can still be avoided for noninteractive renders - which is what this commit does.

Reviewed by: sergey

Differential Revision: https://developer.blender.org/D2285

CMake: WITH_PYTHON_SECURITY=OFF was ignored

Allow auto-execution to be enabled,
also move this to user-prefs versioning code.

OpenGL: use new matrix implementation in "Modern" viewport

This change looks small, but it switches the entire 3D viewport from legacy OpenGL functions to our own code.

Kept non-modern viewport on legacy path so we can compare easily (via the Modern Viewport checkbox).

Part of T49450