Page MenuHome

Sam (Sam200)
User

Projects

User does not belong to any projects.

User Details

User Since
Oct 2 2018, 2:48 AM (54 w, 6 d)

Recent Activity

Jun 3 2019

Sam (Sam200) awarded D4686: Adaptive Sampling for Cycles. a Love token.
Jun 3 2019, 7:54 AM

Jun 1 2019

Sam (Sam200) created T65406: Edge selection obscured by overlay wireframe when using mirror modifier.
Jun 1 2019, 10:23 PM · BF Blender

May 23 2019

Sam (Sam200) created T65016: Opening file browser by clicking a button initiates drag operation.
May 23 2019, 7:12 AM · BF Blender
Sam (Sam200) created T65014: Face dots invisible on some non-planar faces.
May 23 2019, 6:19 AM · BF Blender

May 20 2019

Sam (Sam200) closed T64907: Object texture coordinates not updating in EEVEE as Invalid.

Sorry, this is a duplicate of T57489

May 20 2019, 10:09 PM · BF Blender
Sam (Sam200) created T64907: Object texture coordinates not updating in EEVEE.
May 20 2019, 10:01 PM · BF Blender

May 9 2019

Sam (Sam200) created T64342: Incorrect snapping of focus object in camera view.
May 9 2019, 2:15 AM · BF Blender
Sam (Sam200) created T64339: Crash in uv editor Relax and Pinch tools.
May 9 2019, 12:59 AM · BF Blender

Apr 19 2019

Sam (Sam200) added a comment to D4688: Simulate bounce light in cavity shading.

@Jean Da Costa (jeacom256), you are right. For curvature ("local space" cavity), max value is 2.0. And even for ambient occlusion ("world space" cavity), where you can set any number, it will never brighten by more than a factor of 4.

Apr 19 2019, 5:52 PM

Apr 18 2019

Sam (Sam200) added a comment to D4688: Simulate bounce light in cavity shading.

could we get a soft limit for the sliders, so we can extrapolate if we really wanted?

Apr 18 2019, 9:03 PM

Apr 16 2019

Sam (Sam200) added a comment to D4688: Simulate bounce light in cavity shading.

Here's a different model with bumped up cavity that hopefully shows that contrast is still possible for sculpting purposes.

Apr 16 2019, 6:44 PM
Sam (Sam200) added a comment to D4688: Simulate bounce light in cavity shading.

Here's how I would organize cavity related settings.

Apr 16 2019, 5:02 PM
Sam (Sam200) added a comment to D4688: Simulate bounce light in cavity shading.

Here's a comparison of my function versus the color version of gtao_multibounce(). First one is mine.


Apr 16 2019, 8:08 AM
Sam (Sam200) added a comment to D4688: Simulate bounce light in cavity shading.

This reduces contrast excessively mostly when the base color of the surface is set too bright. In the example image, the object base colors are actually set very bright to compensate for the rather dark studio lighting. Studio lights should be brighter so that material base colors can be kept at a more realistic level without making the scene look too dark. Base colors should never be brighter than 85% (linear) or so.

Apr 16 2019, 5:48 AM
Sam (Sam200) updated the diff for D4688: Simulate bounce light in cavity shading.

Fixed a typo

Apr 16 2019, 12:26 AM

Apr 15 2019

Sam (Sam200) added a comment to T63637: Simulate bounce light in cavity shading.

Marked this as invalid because I meant to create differential.

Apr 15 2019, 11:45 PM · BF Blender
Sam (Sam200) added a reviewer for D4688: Simulate bounce light in cavity shading: Clément Foucault (fclem).
Apr 15 2019, 11:44 PM
Sam (Sam200) created D4688: Simulate bounce light in cavity shading.
Apr 15 2019, 11:43 PM
Sam (Sam200) closed T63637: Simulate bounce light in cavity shading as Invalid.
Apr 15 2019, 11:41 PM · BF Blender
Sam (Sam200) created T63637: Simulate bounce light in cavity shading.
Apr 15 2019, 11:31 PM · BF Blender

Apr 6 2019

Sam (Sam200) added a comment to T63332: Cached B-Bone segment transform data is lost when mode is toggled..

Actually, when stepping in debugger, you can see that the mode change itself actually recreates the data after freeing it.

Apr 6 2019, 4:57 PM · BF Blender
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

This looks so good. :)

Apr 6 2019, 3:04 PM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

Alexander, I just ran your code and I can't reproduce that dual quat weighting bug. I don't know what you did differently to avoid it, but everything is looking good.

Apr 6 2019, 2:39 PM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

This changes B-Bone deformation to use matrices computed between
segments, with tangents computed from the real bezier curve.
...

Apr 6 2019, 2:03 PM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

FYI, I started investigating if I can implement this the proper way with N+1 nodes between segments.

Apr 6 2019, 4:39 AM
Sam (Sam200) updated the diff for D4635: Bendy bone segment deformation interpolation.

Everything looks to be working now.

Apr 6 2019, 4:23 AM
Sam (Sam200) created T63327: Issue with add_weighted_dq_dq function in BLI_math_rotation.h.
Apr 6 2019, 2:27 AM · BF Blender

Apr 5 2019

Tomoaki Kawada (yvt) awarded D4635: Bendy bone segment deformation interpolation a Like token.
Apr 5 2019, 6:26 AM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

I forgot to take scaling into account for the endpoints. Will post again with update.

Apr 5 2019, 5:29 AM
Sam (Sam200) updated the diff for D4635: Bendy bone segment deformation interpolation.

Bendy bones are now interpolated over their full length.

Apr 5 2019, 4:23 AM

Apr 4 2019

Gavin Scott (Zoot) awarded D4635: Bendy bone segment deformation interpolation a Like token.
Apr 4 2019, 3:47 PM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

Note that Armature modifier isn't the only place that uses B-Bone shape - there is the Armature constraint which by definition must produce the same transformation. Copy Transforms may also benifit from access to smoothed shape rather than raw segments.

Apr 4 2019, 2:21 PM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

For those interested, I'm currently working on adding interpolation at the end points by caching two additional matrices per b-bone, one per endpoint, following Alexander's idea.

Apr 4 2019, 9:59 AM
Sam (Sam200) updated the diff for D4635: Bendy bone segment deformation interpolation.

I added linear_blend_m4_m4m4 function to matrix math functions, because it was missing and others might need it in the future.

Apr 4 2019, 6:05 AM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

Here's one with fewer segments per bone.

Apr 4 2019, 2:59 AM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

... The question is how well it would work with such hacks, and whether it is worth it.

Apr 4 2019, 2:52 AM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

... To do that, instead of building N 'segments' like sub-bones, you basically want to sample the bezier transformation at N+1 points (including both ends of the bone), and interpolate between them all. This will however require changing everything, including B-Bone drawing...

Apr 4 2019, 1:30 AM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

I don't really like these uninterpolated ends, ...

Apr 4 2019, 1:18 AM
Sam (Sam200) added a comment to D4635: Bendy bone segment deformation interpolation.

This seems like a good idea. My only concern is the performance impact, would be good to test how playback speed is affected in a real world rig. Probably it's ok.

Apr 4 2019, 1:04 AM

Apr 3 2019

Sam (Sam200) added a reviewer for D4635: Bendy bone segment deformation interpolation: Joshua Leung (aligorith).
Apr 3 2019, 3:54 PM
Sam (Sam200) added a comment to T53700: Bendy bones and shape keys cause vertices to pop.

Submitted patch here

Apr 3 2019, 11:08 AM · Animation, BF Blender
Sam (Sam200) created D4635: Bendy bone segment deformation interpolation.
Apr 3 2019, 11:06 AM
Sam (Sam200) added a comment to T53700: Bendy bones and shape keys cause vertices to pop.

Hi everyone, I'm not a Blender developer but I took some time to implement interpolation between bendy bone segments. If I'm doing something wrong posting here, tell me, because I'm new to all this.

Apr 3 2019, 3:13 AM · Animation, BF Blender

Feb 26 2019

Sam (Sam200) created T61997: Material changes are not updated in collection instances placed in other scenes.
Feb 26 2019, 11:34 PM · BF Blender

Nov 5 2018

Sam (Sam200) added a comment to T56998: Crash when entering wireframe mode with "single" color shading.

It no longer crashes on the latest build. You guys are doing a good job on 2.8. I'm loving it.

Nov 5 2018, 9:33 AM · BF Blender

Oct 2 2018

Sam (Sam200) renamed T56998: Crash when entering wireframe mode with "single" color shading from Crash when entering wireframe with "single" color shading to Crash when entering wireframe mode with "single" color shading.
Oct 2 2018, 3:28 AM · BF Blender
Sam (Sam200) created T56998: Crash when entering wireframe mode with "single" color shading.
Oct 2 2018, 3:27 AM · BF Blender