Cycles Multiple Importance Map for Animated Environment Texture Movie Doesn't Update on Frame Change #49180

New Issue

Ted Schundler · 2016-08-28T00:44:39+02:00

Ted Schundler commented

2016-08-28 00:44:39 +02:00

It seems the multiple importance map for the environment texture doesn't update on frame changes (at least not in the viewport). I did a test with the intended future use case being an environment map built by HDR Fisheye sky time lapses. I'm using with a build from latest git, as well as 2.77 release on OSX.

Maybe related: #48298, #43514

To reproduce:

Set up an environment texture with a small bright light source. (I did an experiment with a flashlight and a mirrorball to test dynamic environment lighting - I can upload the frame sequence somewhere + blend if it would help)
Looks great - not much noise:

 {F345429}

Change frames to somewhere else - suddenly the viewport is very noisy after even more samples, and the color is wrong:

 {F345431}

check & uncheck the multiple importance option for the environment, and it seems to rebuild the map, and a relatively clean image is produced again:

 {F345433}

It seems the multiple importance map for the environment texture doesn't update on frame changes (at least not in the viewport). I did a test with the intended future use case being an environment map built by HDR Fisheye sky time lapses. I'm using with a build from latest git, as well as 2.77 release on OSX. Maybe related: #48298, #43514 To reproduce: * Set up an environment texture with a small bright light source. (I did an experiment with a flashlight and a mirrorball to test dynamic environment lighting - I can upload the frame sequence somewhere + blend if it would help) * Looks great - not much noise: ``` {F345429} ``` * Change frames to somewhere else - suddenly the viewport is very noisy after even more samples, and the color is wrong: ``` {F345431} ``` * check & uncheck the multiple importance option for the environment, and it seems to rebuild the map, and a relatively clean image is produced again: ``` {F345433} ```

Ted Schundler commented

2016-08-28 00:44:39 +02:00

Changed status to: 'Open'

Ted Schundler commented

2016-08-28 00:44:39 +02:00

Added subscriber: @TedSchundler

Sergey Sharybin commented

2016-08-29 09:58:04 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2016-08-29 09:58:04 +02:00

Please attach all files needed to reproduce the issue.

Ted Schundler commented

2016-08-30 01:04:51 +02:00

Here's a simplified test case .blend + image sequence: multiple_importance_bug.zip

Here's a simplified test case .blend + image sequence: [multiple_importance_bug.zip](https://archive.blender.org/developer/F347585/multiple_importance_bug.zip)

Sergey Sharybin self-assigned this 2016-09-02 09:24:55 +02:00

blender-admin commented

2016-09-02 09:58:41 +02:00

This issue was referenced by blender/cycles@b38b5934a3

This issue was referenced by blender/cycles@b38b5934a395b2bdd6bbed7e562213a27ce23875

blender-admin commented

2016-09-02 09:58:41 +02:00

This issue was referenced by b399a6d33f

This issue was referenced by b399a6d33f9b133a26d38fd0e1e5321cbef0693b

Sergey Sharybin commented

2016-09-02 09:59:39 +02:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2016-09-02 09:59:39 +02:00

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Cycles Multiple Importance Map for Animated Environment Texture Movie Doesn't Update on Frame Change #49180