Cyfra

Library provides a way to compile Scala 3 DSL to SPIR-V and to run it with Vulkan runtime on GPUs.

It is multiplatform. It works on:

• Linux, Windows, and Mac (for Mac requires installation of moltenvk).
• Any dedicated or integrated GPUs that support Vulkan. In practice, it means almost all moderately modern devices from most manufacturers including Nvidia, AMD, Intel, Apple.

Animations

Included Foton library provides a clean and fun way to animate functions and ray traced scenes.

Examples

Simple example

//> using scala "3.6.4"
//> using dep "io.computenode::cyfra-foton:0.1.0-RC1"

import io.computenode.cyfra.dsl.{*, given}
import io.computenode.cyfra.foton.GFunction
import io.computenode.cyfra.runtime.VkCyfraRuntime

@main
def multiplyByTwo(): Unit =
  VkCyfraRuntime.using:
    val input = (0 until 256).map(_.toFloat).toArray

    val doubleIt: GFunction[GStruct.Empty, Float32, Float32] = GFunction: x =>
      x * 2.0f

    val result: Array[Float] = doubleIt.run(input)

    println(s"Output: ${result.take(10).mkString(", ")}...")

Run it with:

scala filename.scala

Running on macOS

On macOS, you may need to add extra dependencies:

//> using dep "org.lwjgl:lwjgl:3.4.0,classifier=natives-macos-arm64"
//> using dep "org.lwjgl:lwjgl-vulkan:3.4.0,classifier=natives-macos-arm64"
//> using dep "org.lwjgl:lwjgl-vma:3.4.0,classifier=natives-macos-arm64"

Ray traced animation

code (this is API usage, to see ray tracing implementation look at RtRenderer)

Animated Julia set

code

Animation features examples

Custom animated functions

Animated ray traced scene

Coding features examples

Case classes as GPU structs

GSeq

Development

To enable validation layers for vulkan, you need to install vulkan SDK. After installing, set the following VM option:

-Dio.computenode.cyfra.vulkan.validation=true

If you are on MacOs, then also add:

-Dorg.lwjgl.vulkan.libname=libvulkan.1.dylib
-Djava.library.path=$VULKAN_SDK/lib