This page was roughly updated from the SDL2 version, but needs to be inspected for details that are out of date, and a few SDL2isms need to be cleaned out still, too. Read this page with some skepticism for now.
A lot of information can be found in README-android.
This page is more walkthrough-oriented.
sudo apt install openjdk-17-jdk ant android-sdk-platform-tools-commontools/bin/sdkmanager (or tools/android pre-2017) and install one API (>= 31)PATH="/usr/src/android-ndk-rXXx:$PATH" # for 'ndk-build'
PATH="/usr/src/android-sdk-linux/tools:$PATH" # for 'android'
PATH="/usr/src/android-sdk-linux/platform-tools:$PATH" # for 'adb'
export ANDROID_HOME="/usr/src/android-sdk-linux" # for gradle
export ANDROID_NDK_HOME="/usr/src/android-ndk-rXXx" # for gradlecd /usr/src/SDL3/build-scripts/
./androidbuild.sh org.libsdl.testgles ../test/testgles.ccd /usr/src/SDL3/build/org.libsdl.testgles/
./gradlew installDebugNotes:
sudo update-alternatives --config java and select jdk-17 as default; or use JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64 ./gradlewjavax/xml/bind/annotation/XmlSchema, Could not initialize class com.android.sdklib.repository.AndroidSdkHandler: check the Android Gradle Plugin version in /android-project/build.gradle, e.g. classpath 'com.android.tools.build:gradle:3.1.0'/android-project/gradle/wrapper/gradle-wrapper.properties: distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-all.zipandroid-project/app/build.gradle:android {
buildToolsVersion "28.0.1"
compileSdkVersion 28externalNativeBuild {
ndkBuild {
arguments "APP_PLATFORM=android-14"
abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'ABIs [x86_64, arm64-v8a] are not supported for platform. Supported ABIs are [armeabi, armeabi-v7a, x86, mips]: upgrade to NDK >= 10apt install gradle libgradle-android-plugin-javaLet's modify SDL3_image/showimage.c to show a simple embedded image (e.g. XPM).
#include <SDL3/SDL.h>
#include <SDL3/SDL_main.h>
#include <SDL3/SDL_image.h>
/* XPM */
static char * icon_xpm[] = {
"32 23 3 1",
" c #FFFFFF",
". c #000000",
"+ c #FFFF00",
" ",
" ........ ",
" ..++++++++.. ",
" .++++++++++++. ",
" .++++++++++++++. ",
" .++++++++++++++++. ",
" .++++++++++++++++++. ",
" .+++....++++....+++. ",
" .++++.. .++++.. .++++. ",
" .++++....++++....++++. ",
" .++++++++++++++++++++. ",
" .++++++++++++++++++++. ",
" .+++++++++..+++++++++. ",
" .+++++++++..+++++++++. ",
" .++++++++++++++++++++. ",
" .++++++++++++++++++. ",
" .++...++++++++...++. ",
" .++............++. ",
" .++..........++. ",
" .+++......+++. ",
" ..++++++++.. ",
" ........ ",
" "};
int main(int argc, char *argv[])
{
SDL_Window *window;
SDL_Renderer *renderer;
SDL_Surface *surface;
SDL_Texture *texture;
int done;
SDL_Event event;
if (SDL_CreateWindowAndRenderer("Show a simple image", 0, 0, 0, &window, &renderer) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"SDL_CreateWindowAndRenderer() failed: %s", SDL_GetError());
return(2);
}
surface = IMG_ReadXPMFromArray(icon_xpm);
texture = SDL_CreateTextureFromSurface(renderer, surface);
if (!texture) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Couldn't load texture: %s", SDL_GetError());
return(2);
}
SDL_SetWindowSize(window, 800, 480);
done = 0;
while (!done) {
while (SDL_PollEvent(&event)) {
if (event.type == SDL_EVENT_QUIT)
done = 1;
}
SDL_RenderTexture(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
SDL_Delay(100);
}
SDL_DestroyTexture(texture);
SDL_Quit();
return(0);
}Then let's make an Android app out of it. To compile:
cd /usr/src/SDL3/build-scripts/
./androidbuild.sh org.libsdl.showimage /usr/src/SDL3_image/showimage.c
cd /usr/src/SDL3/build/org.libsdl.showimage/
ln -s /usr/src/SDL3_image jni/
ln -s /usr/src/SDL3_image/external/libwebp-0.3.0 jni/webp
sed -i -e 's/^LOCAL_SHARED_LIBRARIES.*/& SDL3_image/' jni/src/Android.mk
ndk-build -j$(nproc)
ant debug installNotes:
You use autotools in your project and can't be bothering understanding ndk-build's cryptic errors? This guide is for you!
Note: this environment can be used for CMake too.
(FIXME: this needs to be updated for SDL3.)
cd /usr/src/
wget https://libsdl.org/release/SDL2-2.0.5.tar.gz
wget https://www.libsdl.org/projects/SDL_image/release/SDL2_image-2.0.1.tar.gz
wget https://www.libsdl.org/projects/SDL_mixer/release/SDL2_mixer-2.0.1.tar.gz
wget https://www.libsdl.org/projects/SDL_net/release/SDL2_net-2.0.1.tar.gz
wget https://www.libsdl.org/projects/SDL_ttf/release/SDL2_ttf-2.0.14.tar.gz
tar xf SDL2-2.0.5.tar.gz
tar xf SDL2_image-2.0.1.tar.gz
tar xf SDL2_mixer-2.0.1.tar.gz
tar xf SDL2_net-2.0.1.tar.gz
tar xf SDL2_ttf-2.0.14.tar.gz
ln -s SDL2-2.0.5 SDL2
ln -s SDL2_image-2.0.1 SDL2_image
ln -s SDL2_mixer-2.0.1 SDL2_mixer
ln -s SDL2_net-2.0.1 SDL2_net
ln -s SDL2_ttf-2.0.14 SDL2_ttfcd /usr/src/SDL3/
#git checkout -- . # remove traces of previous builds
cd build-scripts/
# edit androidbuild.sh and modify $ANDROID update project --target android-XX
./androidbuild.sh org.libsdl /dev/null
# doesn't matter if the actual build fails, it's just for setup
cd ../build/org.libsdl/rm -rf jni/src/ln -s /usr/src/SDL3_image jni/
ln -s /usr/src/SDL3_image/external/libwebp-0.3.0 jni/webp
ln -s /usr/src/SDL3_mixer jni/
ln -s /usr/src/SDL3_mixer/external/libmikmod-3.1.12 jni/libmikmod
ln -s /usr/src/SDL3_mixer/external/smpeg2-2.0.0 jni/smpeg2
ln -s /usr/src/SDL3_net jni/
ln -s /usr/src/SDL3_ttf jni/jni/Android.mk to disable some formats, e.g.:SUPPORT_MP3_SMPEG := false
include $(call all-subdir-makefiles)
ndk-build -j$(nproc)Note: no need to add System.loadLibrary calls in SDLActivity.java, your application will be linked to them and Android's ld-linux loads them automatically.
Now:
/usr/src/android-ndk-r8c/build/tools/make-standalone-toolchain.sh \
--platform=android-14 --install-dir=/usr/src/ndk-standalone-14-arm --arch=armNDK_STANDALONE=/usr/src/ndk-standalone-14-arm
PATH=$NDK_STANDALONE/bin:$PATHcd /usr/src/SDL3/build/org.libsdl/
for i in libs/armeabi/*; do ln -nfs $(pwd)/$i $NDK_STANDALONE/sysroot/usr/lib/; done
mkdir $NDK_STANDALONE/sysroot/usr/include/SDL3/
cp jni/SDL/include/* $NDK_STANDALONE/sysroot/usr/include/SDL3/
cp jni/*/SDL*.h $NDK_STANDALONE/sysroot/usr/include/SDL3/pkg-config and install a host-triplet-prefixed symlink in the PATH (auto-detected by autoconf):VERSION=0.9.12
cd /usr/src/
wget http://rabbit.dereferenced.org/~nenolod/distfiles/pkgconf-$VERSION.tar.gz
tar xf pkgconf-$VERSION.tar.gz
cd pkgconf-$VERSION/
mkdir native-android/ && cd native-android/
../configure --prefix=$NDK_STANDALONE/sysroot/usr
make -j$(nproc)
make install
ln -s ../sysroot/usr/bin/pkgconf $NDK_STANDALONE/bin/arm-linux-androideabi-pkg-config
mkdir $NDK_STANDALONE/sysroot/usr/lib/pkgconfig/.pc files for SDL:Moreover, 3D enhances the show’s scientific storytelling. Courtship displays (like the Carnotaurus ’s arm-waving dance) gain kinetic depth. Nesting grounds feel like crowded, chaotic villages. And the ocean sequences—where light shafts pierce the surface—become cathedrals of blue, making you feel the weight and cold of the Mesozoic sea. The phrase “walking with dinosaurs prehistoric planet 3D” is not just a title mashup. It is a chronological and technical roadmap. Walking with Dinosaurs taught us to look. Prehistoric Planet taught us to believe. And 3D—whether through VR headsets, high-end televisions, or IMAX screens—teaches us to move within that belief.
When you add “3D” to this equation (as the show’s spatial sound and depth-of-field already invite), the experience becomes radically different. In 3D, a herd of Triceratops isn’t a flat procession; it’s a layered mass of horns and frills receding into dust. A Quetzalcoatlus landing on a cliff face creates genuine vertigo. The feathers on a Dreadnoughtus hatchling don’t just look soft—they seem to float inches from your face. Historically, 3D cinema has been associated with gimmicks—things leaping at the screen. But for a genre built on the word “walking with,” 3D serves a different purpose: proxemics . Dinosaurs were enormous, but their scale is lost on a flat screen. Stereoscopic depth restores the true spatial relationship between a human-sized viewer and a forty-foot theropod. When a Tyrannosaurus rex exhales in Prehistoric Planet ’s forest, fog curls around the camera’s lens. In 3D, that fog exists in real space between you and the beast. You are there . walking with dinosaurs prehistoric planet 3d
The phrase “walking with dinosaurs prehistoric planet 3D” reads like a collision of two eras in natural history filmmaking. On one side is Walking with Dinosaurs (1999), the BBC’s groundbreaking series that redefined the paleo-documentary. On the other is Prehistoric Planet (2022–2023), Apple TV+’s photorealistic, big-budget successor. Combined with “3D,” this phrase becomes a wish: to not just see dinosaurs, but to inhabit their world with the depth, texture, and behavioral intimacy that only modern technology can provide. This essay argues that the journey from Walking with Dinosaurs to Prehistoric Planet is the story of paleo-media evolving from a speculative museum diorama into a living, breathing, stereoscopic reality. 1. The Legacy of Walking with Dinosaurs When Walking with Dinosaurs aired, it was revolutionary. Using animatronics, CGI (then in its infancy), and cinematic nature-documentary tropes—the whispering narrator, the golden-hour lighting, the predator-prey suspense—it treated dinosaurs not as movie monsters but as animals. Viewers watched a Coelophysis cough up a lungfish or an Ornithocheirus struggle to take off from a cliff. However, the technology was limited. Textures were waxy, movements were slightly robotic, and the “3D” effect was purely psychological, achieved through careful composition. Moreover, 3D enhances the show’s scientific storytelling
Imagine a future interactive documentary: you choose to “walk with” a herd of Edmontosaurus across a floodplain, your viewpoint floating beside them. The 3D is not a gimmick but a tool for empathy. You feel the heat radiating from a volcano. You duck as a Pteranodon skims overhead. You understand, not intellectually but viscerally, what it meant to be a warm-blooded animal on a violent, beautiful, alien world. The essay’s title— Walking with Dinosaurs: Prehistoric Planet 3D —is a ghost of an impossible film. But it is also a statement of intent. The first series taught us the grammar of the paleo-documentary. The second perfected its syntax. 3D, properly used, completes the sentence, turning the page from watching dinosaurs to being with them. We are no longer content to see their bones in a museum hall or their shadows on a screen. We want to walk beside them, feel the ground shake, and watch the prehistoric planet turn beneath a real, depth-filled sky. And for the first time, technology has caught up to that dream. And the ocean sequences—where light shafts pierce the
The phrase “walking with” implies immersion, but the original series kept viewers at a remove. It was a diorama that moved, not a world you could step inside. Prehistoric Planet took the core philosophy of its predecessor—scientific accuracy, behavioral storytelling, and no time-traveling gimmicks—and fused it with cutting-edge CGI, ray-traced lighting, and photogrammetry. But the key innovation is its spatial logic. The camera doesn’t just observe; it weaves through ferns, follows a Pachycephalosaurus over a ridge, and plunges into the Arctic Ocean with a Mosasaurus . Every frame feels like a nature documentary shot by a drone that somehow traveled back 66 million years.
You can add any other libraries (e.g.: SDL2_gfx, freetype, gettext, gmp...) using commands like:
mkdir cross-android/ && cd cross-android/
../configure --host=arm-linux-androideabi --prefix=$NDK_STANDALONE/sysroot/usr \
--with-some-option --enable-another-option \
--disable-shared
make -j$(nproc)
make installStatic builds (--disable-shared) are recommended for simplicity (no additional .so to declare).
(FIXME: is there an SDL3_gfx?)
Example with SDL2_gfx:
VERSION=1.0.3
wget http://www.ferzkopp.net/Software/SDL2_gfx/SDL2_gfx-$VERSION.tar.gz
tar xf SDL2_gfx-$VERSION.tar.gz
mv SDL2_gfx-$VERSION/ SDL2_gfx/
cd SDL2_gfx/
mkdir cross-android/ && cd cross-android/
../configure --host=arm-linux-androideabi --prefix=$NDK_STANDALONE/sysroot/usr \
--disable-shared --disable-mmx
make -j$(nproc)
make installYou can compile YOUR application using this technique, with some more steps to tell Android how to run it using JNI.
First, prepare an Android project:
/usr/src/SDL3/android-project skeleton as explained in README-android.md. You can leave it as-is in a first step.mkdir -p libs/armeabi/
for i in /usr/src/SDL3/build/org.libsdl/libs/armeabi/*; do ln -nfs $i libs/armeabi/; doneMake your project Android-aware:
/usr/src/SDL3/src/main/android/SDL_android_main.c in your project (comment out the line referencing "SDL_internal.h"). Compile it as C (not C++).configure.ac, detect Android:AM_CONDITIONAL(ANDROID, test "$host" = "arm-unknown-linux-androideabi")Makefile.am, tell Automake you'll build executables as libraries, using something like:if ANDROID
<!-- Build .so JNI libs rather than executables -->
AM_CFLAGS = -fPIC
AM_LDFLAGS += -shared
COMMON_OBJS += SDL_android_main.c
endifPATH=$NDK_STANDALONE/bin:$PATH
mkdir cross-android/ && cd cross-android/
../configure --host=arm-linux-androideabi \
--prefix=/android-aint-posix \
--with-your-option --enable-your-other-option ...
makearmeabi-v7a and document what devices support it); something like:mkdir cross-android-v7a/ && cd cross-android-v7a/
# .o: -march=armv5te -mtune=xscale -msoft-float -mthumb => -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp -mthumb
# .so: -march=armv7-a -Wl,--fix-cortex-a8
CFLAGS="-g -O2 -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp -mthumb" LFDLAGS="-march=armv7-a -Wl,--fix-cortex-a8" \
../configure --host=arm-linux-androideabi \
...Now you can install your pre-built binaries and build the Android project:
android-project/libs/armeabi/libmain.so..apk:android update project --name your_app --path . --target android-XX
ant debug
ant installdadb shell am start -a android.intenon.MAIN -n org.libsdl.app/org.libsdl.app.SDLActivity # replace with your app package(Work In Progress)
You can use our Android GCC toolchain using a simple toolchain file:
# CMake toolchain file
SET(CMAKE_SYSTEM_NAME Linux) # Tell CMake we're cross-compiling
include(CMakeForceCompiler)
# Prefix detection only works with compiler id "GNU"
CMAKE_FORCE_C_COMPILER(arm-linux-androideabi-gcc GNU)
SET(ANDROID TRUE)You then call CMake like this:
PATH=$NDK_STANDALONE/bin:$PATH
cmake \
-D CMAKE_TOOLCHAIN_FILE=../android_toolchain.cmake \
...If ant installd categorically refuses to install with Failure [INSTALL_FAILED_INSUFFICIENT_STORAGE], even if you have free local storage, that may mean anything. Check logcat first:
adb logcatIf the error logs are not helpful (likely ;')) try locating all past traces of the application:
find / -name "org...."and remove them all.
If the problem persists, you may try installing on the SD card:
adb install -s bin/app-debug.apkIf you get in your logcat:
SDL: Couldn't locate Java callbacks, check that they're named and typed correctly
this probably means your SDLActivity.java is out-of-sync with your libSDL3.so.