I have a quite specific usecase, where I need to compute similarity between two images:

var similarity = 0.0
for (x in 0..width) for (y in 0..height) {
  euclid_distance(image0.rgb(x,y), image1.rgb(x,y)) // image 0,1 are composite shapes or svg
}
return similarity / width*height

I wasn't able to find .rgb(x,y) in the guide or the API, is there anything like it?
Moreover, I need this operation to be super fast, so the call to .rgb should have zero overhead. Also I wonder if openrdnr could allow me to implement it on GPU to get some further speedups.

https://github.com/openrndr/openrndr-guide/blob/master/docs/08_Animation/C00_InteractiveAnimations.md#waiting-for-an-animation-to-finish

The last two code boxes seem incomplete.

That makes it more obvious how to contribute

Hi - I think there is a ':run' missing in the last sentence of

https://guide.openrndr.org/#/02_Getting_Started_with_OPENRNDR/C01_TutorialRepository?id=running-tutorials-from-the-command-line

You can run an individual example from the tutorial repository from the command line using ./gradlew :<project-name> → You can run an individual example from the tutorial repository from the command line using ./gradlew :<project-name>:run

At least for me this is required to actually run a tutorial.

The links to the full examples on https://guide.openrndr.org/#/10_OPENRNDR_Extras/C01_Noise are all 404

There are a number of dead links floating around online to pages in the guide that are no longer there.

For example, the Tutorials link on the OpenRNDR homepage itself is dead. So are old links in Github issues (e.g. this issue).

It'd be great if the guide automatically redirected from the old links to the new links. Alternatively, it could at least show search results for missing pages based on the slug.

hello
wanna translate guide document to korean. and want to preview results as follow here but there is no task, build directory under the repository.

did I miss something of thouse files are missing in this repo?

thank you.

When I run the docsify gradle task after editing a guide page, the texts are indeed updated, but the part inside the code block stays unchanged for some reason.

I tried deleting

• build/classes/kotlin/GeneratedExamples/examples/04_Drawing_basics/C05_ComplexShapes005Kt.class
• build/dokgen/generated/examples-export/04_Drawing_basics/C05_ComplexShapes005.kt
• build/dokgen/generated/examples/04_Drawing_basics/C05_ComplexShapes005.kt

and running docsify again but somehow the code in the html page does not change.

Add documentation for getting pixel color values using the shadow property.

For example: https://openrndr.discourse.group/t/load-image-and-get-pixel-value/42

When trying to draw some text as explained in https://guide.openrndr.org/#/04_Drawing_basics/C02_Text using the current master of https://github.com/openrndr/openrndr-template with

fun main() = application {
    configure {
        width = 800
        height = 800
    }
    program  {
        val font = loadFont("file:data/IBMPlexMono-Bold.ttf", 24.0)

        extend {
            drawer.fontMap = font
            drawer.fill = ColorRGBa.WHITE
            drawer.text("Counter $seconds", width / 2.0 - 100.0, height / 2.0)
        }
    }
}

it fails with

Exception in thread "main" java.io.FileNotFoundException: data\IBMPlexMono-Bold.ttf (The system cannot find the file specified)

It would be great if example-template (or one of the dependencies) could either somehow include these fonts, or the doc-example would use a default system font.

I managed to solve the issue by downloading the fonts from https://fonts.google.com/specimen/IBM+Plex+Mono

See
https://github.com/openrndr/openrndr-guide/blob/master/docs/06_Advanced_drawing/C04_Shade_styles.md#standard-uniforms

It's a duplicate of the prefix overview.

At the bottom of the Drawing SVG chapter there is a link for how to write SVG files, however, the link goes to a blank page.

Is it that the link is incorrect or that the content doesn't exist yet?

Based on my observations, openrndr limits its frame rate to 60 FPS. Is it possible to modify this limit?

Add them to https://guide.openrndr.org/#/10_OPENRNDR_Extras/C07_Compositor
based on https://openrndr.discourse.group/t/openrndr-0-3-40-orx-0-3-50-released/60/9?u=ricardo

https://github.com/just-the-docs/just-the-docs/releases

https://guide.openrndr.org/#/10_OPENRNDR_Extras/C08_Quick_UIs?id=actionparameter

• Uses @DoubleParameter in @IntParameter
• No mention of @DoubleListParameter

Link

Does not mention:

• x_modelMatrix
• x_modelNormalMatrix

Perhaps there could be some examples which make use of one of the preprocessors and vertexTransform.

A small entry on how to use them, reading, converting to indented type and why they could be a better choice than using a ColorBufferShadow (when it's an alternative).

Not necessarily an independent topic, but an entry about them.

Cover integer atomic counters and image.

In the guide, if one searches for blendMode or u_fill there are zero results. The search feature might need some tweaking?

I'd like to create a PNG file for each frame within the extend {} block until it reaches a certain number of frames.

I tried using the Screenshots extension but I find it a bit hard to control. I am looking for something similar to the VideoWriter that works within the extend draw loop block but for pngs.

An explanation on how they differ from each other or in which circumstances to use one or the other.

Include examples with JSON, XML and CSV.

The example in

https://guide.openrndr.org/#/06_Advanced_drawing/C00_Render_targets_and_color_buffers?id=compositing-using-render-targets-and-alpha-channels

gives an error, as rt1 only has one colorbuffer, ie the code line

drawer.image(rt1.colorBuffer(1))

should be

drawer.image(rt1.colorBuffer(0))

instead imho.