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| BZNotify | bzflag: macsforme commented on pull request #227 "Disable dithering always" by atupone (https://git.io/JeMCC): Doesn't this technically enable dithering always, since the initial... | 07:13 |
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| BZNotify | bzflag: macsforme commented on pull request #227 "Disable dithering always" by atupone (https://git.io/JeMCC): Doesn't this technically **enable** dithering always, since the ini... | 07:13 |
| BZNotify | bzflag: atupone commented on pull request #228 "Do not recreate window every time" (https://git.io/Je1jF): > Also, what makes you think this will fix #201? It sounded like th... | 07:14 |
| BZNotify | bzflag: atupone commented on pull request #227 "Disable dithering always" (https://git.io/JeMC0): src/ogl/OpenGLGState.cxx changes it to disable | 07:16 |
| BZNotify | bzflag: atupone commented on pull request #227 "Disable dithering always" (https://git.io/JeMCo): But I understand that dithering has no effect if the color buffer h... | 07:18 |
| macsforme | tupone: any particular reason for wanting it always disabled, then? if the default setting in OpenGL is enabled? | 07:20 |
| macsforme | if we're ripping out the toggle, it seems best to me to just remove every mention of GL_DITHER and let the default take effect | 07:21 |
| macsforme | plus, if someone could still benefit from it if playing with textures off (colors only, low bit depth), then why not leave it on? | 07:23 |
| tupone | macsforme: I agree completely. Just, I read in IRC that we want to disable it :/ | 07:24 |
| macsforme | that's not what I get from reading the backlog... but either way, if it makes no difference, I'd rather leave it on the default | 07:28 |
| tupone | But why you think that a color from a texture is not subject to DITHER? With shader, for instance, the color is decided inside the shader, taking the texture and mixing with other things. I don't see the difference between color only and texture. | 07:30 |
| macsforme | the spec says it dithers the color components | 07:30 |
| tupone | yes, the color, but where the color is coming is another things :/ | 07:31 |
| tupone | I will change the commit | 07:31 |
| tupone | do you mind if I push force or commit directly the change to upstream ? | 07:34 |
| macsforme | dithering is smoothing out a gradient between two colors, basically... how can you do that with a texture sample? that makes no sense... there is no information in a texture to tell you how to dither | 07:34 |
| macsforme | now, if a color component is a factor in determining the fragment color (for example, multiply the texture by the color), then yes, the color value could be dithered | 07:35 |
| macsforme | that's how I understand it, anyway | 07:36 |
| macsforme | I don't care if you force push on this one... I didn't clone it yet | 07:36 |
| tupone | ok | 07:36 |
| BZNotify | bzflag: atupone synchronized pull request #227 "Disable dithering always" (https://git.io/Jeo0C) | 07:37 |
| BZNotify | bzflag: atupone edited pull request #227 "Enable dithering always" (https://git.io/Jeo0C) | 07:37 |
| tupone | :) | 07:37 |
| BZNotify | bzflag: macsforme commented on pull request #228 "Do not recreate window every time" by atupone (https://git.io/JeMWq): The delay is caused by `SDL_SetWindowSize(windowId, targetWidth, ta... | 07:44 |
| BZNotify | bzflag: atupone commented on pull request #228 "Do not recreate window every time" (https://git.io/JeMWZ): SDL_WINDOW_RESIZEABLE should be always on, as going from fullscreen... | 07:48 |
| tupone | dithering is a per fragment operation, it does not check for near fragment. The only requirement for it is that it depends on pixel coordinates and the incoming color, so the result does not change frame after frame. Details are in https://www.khronos.org/registry/OpenGL/specs/gl/glspec15.pdf 4.1.9 Dithering | 07:59 |
| BZNotify | bzflag: atupone synchronized pull request #228 "Do not recreate window every time" (https://git.io/Je1T3) | 08:01 |
| tupone | Not tested :) | 08:01 |
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| tupone | as for the dithering in bzflag, it was disabled when drawing the sky. I don't know if it was for performance or for other unwanted effects. Someone should test it | 08:06 |
| macsforme | that's like the one place where it might actually have had a benefit :-P | 08:19 |
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| BZNotify | bzflag: atupone synchronized pull request #228 "Do not recreate window every time" (https://git.io/Je1T3) | 21:34 |
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