View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000175 | madVR | bug | public | 2014-03-07 18:44 | 2014-03-08 15:23 |
| Reporter | web2312 | Assigned To | madshi | ||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | closed | Resolution | fixed | ||
| Summary | 0000175: Banding appears if bitdepth is set to '7 bit' | ||||
| Description | This problem does not occur in previous version (0.87.4) Banding apppears regardless of dithering algorithm if bitdepth is set to '7bit'. See the comparison below (Both with identical settings. No 3dlut, no overlay mode and no artifact removal) http://screenshotcomparison.com/comparison/65645 Set dithering algorithm to 'None', then take a screenshot of it. I found that the grayscale tracking around value 106~117 is choppy. As shown below http://i.imgur.com/mllKXB5.png (Shouldn't it be 0-2-4-...-106-108-110-112-114-116-...-254 ?) Test image: http://www.lagom.nl/lcd-test/img/gradient-h.png | ||||
| Steps To Reproduce | 1. Use mpc-hc to play the "test image". 2. Set "the native display bitdepth is" option in madVR to '7 bit'. 3. Banding appears near the center of the image. | ||||
| Tags | No tags attached. | ||||
| madVR Version | 0.87.6 | ||||
| Media Player (with version info) | MPC-HC 1.6.7.7069 | ||||
| Splitter (with version info) | LAV Filters 0.56.0 | ||||
| Decoder (with version info) | Generate Still Video | ||||
| Decoding | Software | ||||
| Deinterlacing | none (progressive) | ||||
| DXVA2 Scaling Active | no | ||||
| Aero / Desktop Composition | On | ||||
| Problem occurs with mode | all modes | ||||
| GPU Manufacturer | NVidia | ||||
| GPU Model | Geforce GTX 660 | ||||
| GPU Driver Version | 327.23 | ||||
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Thanks for bringing this to my attention. This problem was caused by several different small things adding up to noticeable problems. This should all be fixed in the next build. For your interest, here's a test build with the fixes already included: http://madshi.net/madVRlinearLightDither2.rar |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2014-03-07 18:44 | web2312 | New Issue | |
| 2014-03-08 11:17 | madshi | Assigned To | => madshi |
| 2014-03-08 11:17 | madshi | Status | new => assigned |
| 2014-03-08 15:23 | madshi | Note Added: 0000482 | |
| 2014-03-08 15:23 | madshi | Status | assigned => closed |
| 2014-03-08 15:23 | madshi | Resolution | open => fixed |
