SSS buffers are lazy initialized when needed. When shaders recompile the
SSS buffers could be incorrectly drawn. During the render passes project
we tried to fix this, but that resulted in incorrect result of the first
sample after a shader was compiled.
We revert this change knowing that we know the issue, but haven't found
a proper solution for it.
This is using the GGX probe as background. This has the drawback of
having the resolution choosed in the indirect lighting setting.
The blurring is not really high-quality.
The pros is that it has a simple implementation and is fast to evaluate.
This patch also fades the background alpha to make overlay engine draw the
default background color in the correct color space. Removing one colorspace
hack.
Reviewed By: jbakker
Differential Revision: https://developer.blender.org/D6895
Put DefaultFramebufferList and DefaultTextureList into an own header
file. These structs were private, but also used by the window manager
and gpu package. The previous implementation we needed to keep these
structs in sync.
This patch adds new render passes to EEVEE. These passes include:
* Emission
* Diffuse Light
* Diffuse Color
* Glossy Light
* Glossy Color
* Environment
* Volume Scattering
* Volume Transmission
* Bloom
* Shadow
With these passes it will be possible to use EEVEE effectively for
compositing. During development we kept a close eye on how to get similar
results compared to cycles render passes there are some differences that
are related to how EEVEE works. For EEVEE we combined the passes to
`Diffuse` and `Specular`. There are no transmittance or sss passes anymore.
Cycles will be changed accordingly.
Cycles volume transmittance is added to multiple surface col passes. For
EEVEE we left the volume transmittance as a separate pass.
Known Limitations
* All materials that use alpha blending will not be rendered in the render
passes. Other transparency modes are supported.
* More GPU memory is required to store the render passes. When rendering
a HD image with all render passes enabled at max extra 570MB GPU memory is
required.
Implementation Details
An overview of render passes have been described in
https://wiki.blender.org/wiki/Source/Render/EEVEE/RenderPasses
Future Developments
* In this implementation the materials are re-rendered for Diffuse/Glossy
and Emission passes. We could use multi target rendering to improve the
render speed.
* Other passes can be added later
* Don't render material based passes when only requesting AO or Shadow.
* Add more passes to the system. These could include Cryptomatte, AOV's, Vector,
ObjectID, MaterialID, UV.
Reviewed By: Clément Foucault
Differential Revision: https://developer.blender.org/D6331
The problem is that Custom Shape Bones can also have a custom size.
So the pchan->disp_mat doesn't always consider the actual length of the bone.
The proposed solution is to calculate the axes matrix at the drawing pass.
Ref T65640
Reviewed By: fclem
Differential Revision: http://developer.blender.org/D5049
We detect the case where we need to invert the facing directly inside the
DRWView update and do the appropriate GL calls at draw time.
Fix T63047 Camera with negative scale works only in Cycles Rendered view
Fix T71352 Negative scale camera causes BLI_assert
This commit replaces the "Use Gradient" checkbox theme option with an
enum and implements a radial background.
Whith this change, it should be easier to implemet other types of more
complex background types, like a world space oriented gradient.
Reviewed By: billreynish, fclem, brecht
Differential Revision: https://developer.blender.org/D6825
This patch adds a dedicated path to extract 16bit normals instead of packing them into 10bits/comp.
The tangents are also packed to 10bits/comp if not using the new High Quality Normal option.
Fix T61024 Degraded texture shading on dense meshes
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D6614
The render passes didn't follow the DrawManager way of doing things. It added new geometry and shading groups during drawing. This would make it harder to migrate to Vulkan later on.
This change will re-implement this part by using uniform references.
Reviewed By: Clément Foucault
Differential Revision: https://developer.blender.org/D6875
This change will not render the normals for faces that are hidden.
Before we had instance drawing the hidden faces were registered in the
index buffer. During the overlay refactoring the rendering was migrated
to instance rendering. Instance rendering does not use the index buffer
so the data was ignored.
This patch stored the normal visibility in the .w part of the normal or
for face normals it will set the normal to zero. The shader looks at
this and renders the normals fully transparent when detected.
Reviewed By: Clément Foucault
Differential Revision: https://developer.blender.org/D6798
This fixes the issue where sun shadowmaps needs a very big bias value to
make any difference.
The bias is now in world space and not dependant on shadow bounds.
Unfortunatelly this breaks compatibility with previous version and old
scene are likely to need user intervention to fix.
Also fixes the property range.
Fix T71661 EEVEE shadow from sun on incorrect face
color
Selection and grooming only ever happens on hair keys (vertices), so
makes sense to use that theme color.
Sidenote: `CacheEditrPathsIterData` and `PTCacheEdit` have `sel_col` and
`nosel_col`, these can go, will do in a separate commit.
Maniphest Tasks: T68788
Differential Revision: https://developer.blender.org/D6725
Compared to 2.79, this also has the benefit of actually showing the curve
again if you set both bevel start and end to 0.0 for example.
Maniphest Tasks: T59271
Differential Revision: https://developer.blender.org/D6168
