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File paths are crude and preliminary.
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The cell size is chosen as r/sqrt(3) (i.e. max. 1 sample per cell),
which means that the influence of each cell extends beyond the 1st
neighbor. a 5x5x5 box (except the center and corners) needs to be
examined to find collisions.
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This is still buggy (uneven sample coverage) and needs changes to the
sampling system for better threading support.
The implementation is based on
Bowers, John, et al. "Parallel Poisson disk sampling with spectrum analysis on surfaces." ACM Transactions on Graphics (TOG). Vol. 29. No. 6. ACM, 2010.
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Volume bbray method is currently excluded because the implementation
is not yet thread-safe.
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This should test general functionality and consistency of different methods
for generating samples. In particular it shoud ensure that threaded variants
produce the same samples as unthreaded variants when using the same generator
and seeds.
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This is to ensure that threaded generator usage creates the exact same results
as the non-threaded base version. Further improvements and testing will be
needed.
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Samples can be generated either one-by-one using the existing "make_sample"
function (which uses a default context), or use the more efficient batch
generation functions. These optionally support threading via the task scheduler
now.
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Complicated using GPU_matrix from PyAPI.
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Moar artistic control yay!
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It's purpose is to limit the amount of light that spread across the screen.
Not entierly sure if it's very usefull, but it sure help to avoid to drown the screen in bloom.
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This function was called to recreate the lower mip level of the probe texture. But this is not it's usage and it introduced a stall.
This patch add cubemap mipmap level regeneration in eevee_effects.c
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The default hair group type uses vertex normals to generate guide strands automatically.
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And wipe metallic out of the map.
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Since we started supporting the (Cycles) Material Output old files
stopped working. There is no reason to keep the original Eevee material
otuput anymore.
It includes doversion for old files.
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Move floats around when needed to accomodate vec3 arrays efficiently.
With this we use slightly less memory when possible. Basically vec3s are not
treated as vec4 unless we have no float to use for padding).
Reviewers: fclem, sergey
Differential Revision: https://developer.blender.org/D2800
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This includes big improvement:
- The horizon search is decoupled from the BSDF evaluation. This means using multiple BSDF nodes have a much lower impact when enbaling AO.
- The horizon search is optimized by splitting the search into 4 corners searching similar directions to help which GPU cache coherence.
- The AO options are now uniforms and do not trigger shader recompilation (aka. freeze UI).
- Include a quality slider similar to the SSR one.
- Add a switch for disabling bounce light approximation.
- Fix problem with Bent Normals when occlusion get very dark.
- Add a denoise option to that takes the neighbors pixel values via glsl derivatives. This reduces noise but exhibit 2x2 blocky artifacts.
The downside : Separating the horizon search uses more memory (~3MB for each samples on HD viewport). We could lower the bit depth to 4bit per horizon but it produce noticeable banding (might be fixed with some dithering).
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Diffuse was not outputing the right normal. (this is not a problem with SSR actually)
Glass did not have proper ssr_id and was receiving environment lighting twice.
Also it did not have proper fresnel on lamps.
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This fixes the Principled shader in Eevee, among other nodes.
Basically before we were treating all the vec3 as vec4 as far as memory
goes. We now only do it when required (aka, when the vec3 is not
followed by a float).
We can be even smarter about that and move the floats around to provide
padding for the vec3s. However this is for a separate patch.
That said, there seems to be some strong consensus in corners of the
internet against using vec3 at all [1]. Basically even if we get all the
padding correct, we may still suffer from poor driver implementations in
some consumer graphic cards.
It's not hard to move to vec4, but I think we can avoid doing it as much
as possible. By the time 2.8 is out hopefully most drivers will be
implementing things correctly.
[1] - https://stackoverflow.com/questions/38172696
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Raise error on vert-buffer data overflow.
Also exception on attempting to fill data thats already on the GPU.
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Deleting the old internal audaspace.
Major changes from there are:
- The whole library was refactored to use C++11.
- Many stability and performance improvements.
- Major Python API refactor:
- Most requested: Play self generated sounds using numpy arrays.
- For games: Sound list, random sounds and dynamic music.
- Writing sounds to files.
- Sequencing API.
- Opening sound devices, eg. Jack.
- Ability to choose different OpenAL devices in the user settings.
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Also some minor corrections.
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Wraps vertex-format, vertex-buffer and batch's (enough for drawing).
Doesn't yet expose index-buffers or shaders.
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Matching behavior for operators.
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Needed to reference without first including headers.
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Use mesh batch cache for mesh selection.
Note that we could create the batches and free immediately
so they don't take up memory.
This resolves a problem where selection was limited
to immediate-mode buffer size.
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The compiler version has changed in the last VS2017 update to 1911 and the old 1910 version is not working anymore.
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ND_LAYER and ND_LAYER_CONTENT both need to trigger manipulators updates.
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Were using Batch_ prefix still
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Since the paste object is pasted in the active collection, and not on
its original one, we need to flush/calculate the new collection base
settings (visibility, selectability, ...).
DEG_id_tag_update() for the scene now. Though it may be better to tag
only the object specific IDs in the future.
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Use ownership flags instead.
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