[FEATURE] Ability to add a custom logo in different areas of the screen

[diegobaccino]

Please confirm the following points:

• This feature request is NOT for the Android apps in the Play Store
• I have searched the project page to check if a similar request was already made

Application or Project

projectM Standalone SDL2 Frontend (includes the Steam app)

Is Your Enhancement Related to a Problem?

No

Your Suggested Enhancement

DJs often have a logo for themselves and would love to be able to add their logo in front of the visualization, to make it more PRO.

Alternative Solutions

The only thing I can think of is some is some sort of custom screen overlay that would draw over the visualization. It would be great if in the options there was an Overlay section where you could add a .PNG and select the placement (middle, top-right, etc.).

Additional Context

No response

[kholbrook1303]

@diegobaccino take a look at the upcoming sprites feature: Support Milkdrop user sprites.

The sprites are rendered on top of visualization presets (loaded via textures) and can be animated via expression code. This feature is slated to arrive in version 4.2.

[diegobaccino]

Thanks awesome, I'll be following this and testing- thank you. d.

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________________________________ From: kholbrook1303 ***@***.***> Sent: Tuesday, April 28, 2026 7:49 AM To: projectM-visualizer/projectm ***@***.***> Cc: Mention ***@***.***>; Author ***@***.***> Subject: Re: [projectM-visualizer/projectm] [FEATURE] Ability to add a custom logo in different areas of the screen (Issue #997) @diegobaccino<https://github.com/diegobaccino> take a look at the upcoming sprites feature: Support Milkdrop user sprites<#734>. The sprites are rendered on top of visualization presets (loaded via textures) and can be animated via expression code. This feature is slated to arrive in version 4.2. — Reply to this email directly, view it on GitHub<#997 (comment)> or unsubscribe<https://github.com/notifications/unsubscribe-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ou are receiving this email because you were mentioned. Triage notifications on the go with GitHub Mobile for iOS<https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android<https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[kblaschke]

The SDL standalone app doesn't support it yet, but user sprites will be added after libprojectM 4.2 is released. By default, up to 16 concurrent, individual sprites can be rendered. Full PNG alpha transparency is supported instead of Milkdrop's original color key method.

[diegobaccino]

That would be freaking awesome-- I was able to fork the code and make it work with a logo overlay. It would be great if we could configure things like interactive and static effects on the logo/watermarks, which is what I did for mine. Have it spin or sway or move through the screen (static effects) while also responding to music (pulsing, etc). Look forward to 4.2 🙌 d.

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________________________________ From: Kai Blaschke ***@***.***> Sent: Thursday, April 30, 2026 7:03 AM To: projectM-visualizer/projectm ***@***.***> Cc: Author ***@***.***>; Comment ***@***.***> Subject: Re: [projectM-visualizer/projectm] [FEATURE] Ability to add a custom logo in different areas of the screen (Issue #997) The SDL standalone app doesn't support it yet, but user sprites will be added after libprojectM 4.2 is released. By default, up to 16 concurrent, individual sprites can be rendered. Full PNG alpha transparency is supported instead of Milkdrop's original color key method. — Reply to this email directly, view it on GitHub<#997 (comment)> or unsubscribe<https://github.com/notifications/unsubscribe-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ou are receiving this email because you authored the thread. Triage notifications on the go with GitHub Mobile for iOS<https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android<https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[kblaschke]

Milkdrop sprites do support this, as they can be scripted with expressions. In these scripts, you have access to many inputs presets can use like beat detection values. Sprites can be animated in regards to position, size, rotation and texture coordinates. Sprites can also be automatic destroyed/removed via expression code, e.g. on a beat after a certain minimum time has passed. The Winamp Forums have plenty of examples.

Interactive control is not possible, as this would require some additional API to pass certain data into projectM. Might be something for a future version though. Currently, you can still remove and add a sprite between frames and dynamically change the expression code. For the user, this wouldn't be visible as long as the sprite position doesn't change.

Besides that, projectM supports all Milkdrop sprite features except color-keying, but since alpha channels are superior in any case, it's not a huge issue IMO.

[diegobaccino]

I did a quick proof of concept fork on the repo if you want to take a look. Added an overlay option in the menu with some effects, if you want to take a look and build it to test it https://github.com/diegobaccino/projectm There are still a few bugs there, I'm sure. d. Diego Baccino

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________________________________ From: Kai Blaschke ***@***.***> Sent: Tuesday, May 5, 2026 2:51:35 AM To: projectM-visualizer/projectm ***@***.***> Cc: Comment ***@***.***>; Author ***@***.***> Subject: Re: [projectM-visualizer/projectm] [FEATURE] Ability to add a custom logo in different areas of the screen (Issue #997) Milkdrop sprites do support this, as they can be scripted with expressions. In these scripts, you have access to many inputs presets can use like beat detection values. Sprites can be animated in regards to position, size, rotation and texture coordinates. Sprites can also be automatic destroyed/removed via expression code, e.g. on a beat after a certain minimum time has passed. The Winamp Forums have plenty of examples. projectM supports all Milkdrop sprite features except color-keying, but since alpha channels are superior in any case, it's not a huge issue IMO. — Reply to this email directly, view it on GitHub<#997 (comment)> or unsubscribe<https://github.com/notifications/unsubscribe-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ou are receiving this email because you commented on the thread. Triage notifications on the go with GitHub Mobile for iOS<https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android<https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[kblaschke]

As stated above, IMO it's easier and probably more versatile to just use the newly added user sprite API for this purpose instead of adding a very similar new feature with additional code. All effects, and more, as implemented in your PoC can also be scripted directly in the sprite's expression code.

The only thing missing is the external API control feature. This could easily be generalized by providing an additional API function that can set (and read) arbitrary variables within each sprite's expression code VM, like:

PROJECTM_EXPORT double projectm_sprite_get_var(projectm_handle instance, uint32_t sprite_id, const char* var_name);
PROJECTM_EXPORT void projectm_sprite_set_var(projectm_handle instance, uint32_t sprite_id, const char* var_name, double value);

Then, the sprite itself could use these variables for anything you can think of, while the outside application has full control over these effects just by manipulating the values between frames. the application needs to know which variable does what, but since it's in control, that's most probably not an issue.

[diegobaccino]

You are probably so right, Kai. I appreciate the feedback and your thoughts on the approach. I haven't had the chance to look at the newly added API. I will definitely take a look to see if I can leverage it. Thank you for your time. d. Diego Baccino

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________________________________ From: Kai Blaschke ***@***.***> Sent: Friday, May 8, 2026 6:43:05 AM To: projectM-visualizer/projectm ***@***.***> Cc: Author ***@***.***>; Comment ***@***.***> Subject: Re: [projectM-visualizer/projectm] [FEATURE] Ability to add a custom logo in different areas of the screen (Issue #997) As stated above, IMO it's easier and probably more versatile to just use the newly added user sprite API<https://github.com/projectM-visualizer/projectm/blob/master/src/api/include/projectM-4/user_sprites.h> for this purpose instead of adding a very similar new feature with additional code. All effects, and more, as implemented in your PoC can also be scripted directly in the sprite's expression code. The only thing missing is the external API control feature. This could easily be generalized by providing an additional API function that can set (and read) arbitrary variables within each sprite's expression code VM, like: PROJECTM_EXPORT double projectm_sprite_get_var(projectm_handle instance, uint32_t sprite_id, const char* var_name); PROJECTM_EXPORT void projectm_sprite_set_var(projectm_handle instance, uint32_t sprite_id, const char* var_name, double value); Then, the sprite itself could use these variables for anything you can think of, while the outside application has full control over these effects just by manipulating the values between frames. the application needs to know which variable does what, but since it's in control, that's most probably not an issue. — Reply to this email directly, view it on GitHub<#997 (comment)> or unsubscribe<https://github.com/notifications/unsubscribe-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ou are receiving this email because you authored the thread. Triage notifications on the go with GitHub Mobile for iOS<https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android<https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.