Examples with TextureCubeMap com.jme3.texture.TextureCubeMap used on opensource projects

Example 21 with TextureCubeMap

use of com.jme3.texture.TextureCubeMap in project jmonkeyengine by jMonkeyEngine.

the class LightProbeFactory method generatePbrMaps.

/**
     * Internally called to generate the maps.
     * This method will spawn 7 thread (one for the IrradianceMap, and one for each face of the prefiltered env map).
     * Those threads will be executed in a ScheduledThreadPoolExecutor that will be shutdown when the genration is done.
     * 
     * @param envMap the raw env map rendered by the env camera
     * @param probe the LigthProbe to generate maps for
     * @param app the Application
     * @param listener a progress listener. (can be null if no progress reporting is needed)
     */
private static void generatePbrMaps(TextureCubeMap envMap, final LightProbe probe, Application app, final JobProgressListener<LightProbe> listener) {
    IrradianceMapGenerator irrMapGenerator;
    PrefilteredEnvMapFaceGenerator[] pemGenerators = new PrefilteredEnvMapFaceGenerator[6];
    final JobState jobState = new JobState(new ScheduledThreadPoolExecutor(7));
    irrMapGenerator = new IrradianceMapGenerator(app, new JobListener(listener, jobState, probe, 6));
    int size = envMap.getImage().getWidth();
    irrMapGenerator.setGenerationParam(EnvMapUtils.duplicateCubeMap(envMap), size, EnvMapUtils.FixSeamsMethod.Wrap, probe.getIrradianceMap());
    jobState.executor.execute(irrMapGenerator);
    for (int i = 0; i < pemGenerators.length; i++) {
        pemGenerators[i] = new PrefilteredEnvMapFaceGenerator(app, i, new JobListener(listener, jobState, probe, i));
        pemGenerators[i].setGenerationParam(EnvMapUtils.duplicateCubeMap(envMap), size, EnvMapUtils.FixSeamsMethod.Wrap, probe.getPrefilteredEnvMap());
        jobState.executor.execute(pemGenerators[i]);
    }
}

Example 22 with TextureCubeMap

use of com.jme3.texture.TextureCubeMap in project jmonkeyengine by jMonkeyEngine.

the class IrradianceMapGenerator method generateIrradianceMap.

/**
     * Generates the Irradiance map (used for image based difuse lighting) from
     * Spherical Harmonics coefficients previously computed with
     * {@link EnvMapUtils#getSphericalHarmonicsCoefficents(com.jme3.texture.TextureCubeMap)}
     *
     * @param shCoeffs the SH coeffs
     * @param targetMapSize the size of the irradiance map to generate
     * @param fixSeamsMethod the method to fix seams
     * @param store
     * @return The irradiance cube map for the given coefficients
     */
public TextureCubeMap generateIrradianceMap(Vector3f[] shCoeffs, int targetMapSize, EnvMapUtils.FixSeamsMethod fixSeamsMethod, TextureCubeMap store) {
    TextureCubeMap irrCubeMap = store;
    setEnd(6 + 6);
    for (int i = 0; i < 6; i++) {
        ByteBuffer buf = BufferUtils.createByteBuffer(targetMapSize * targetMapSize * store.getImage().getFormat().getBitsPerPixel() / 8);
        irrCubeMap.getImage().setData(i, buf);
        progress();
    }
    Vector3f texelVect = new Vector3f();
    ColorRGBA color = new ColorRGBA(ColorRGBA.Black);
    float[] shDir = new float[9];
    CubeMapWrapper envMapWriter = new CubeMapWrapper(irrCubeMap);
    for (int face = 0; face < 6; face++) {
        for (int y = 0; y < targetMapSize; y++) {
            for (int x = 0; x < targetMapSize; x++) {
                EnvMapUtils.getVectorFromCubemapFaceTexCoord(x, y, targetMapSize, face, texelVect, fixSeamsMethod);
                EnvMapUtils.evalShBasis(texelVect, shDir);
                color.set(0, 0, 0, 0);
                for (int i = 0; i < EnvMapUtils.NUM_SH_COEFFICIENT; i++) {
                    color.set(color.r + shCoeffs[i].x * shDir[i] * shBandFactor[i], color.g + shCoeffs[i].y * shDir[i] * shBandFactor[i], color.b + shCoeffs[i].z * shDir[i] * shBandFactor[i], 1.0f);
                }
                //clamping the color because very low value close to zero produce artifacts
                color.r = Math.max(0.0001f, color.r);
                color.g = Math.max(0.0001f, color.g);
                color.b = Math.max(0.0001f, color.b);
                envMapWriter.setPixel(x, y, face, color);
            }
        }
        progress();
    }
    return irrCubeMap;
}

Example 23 with TextureCubeMap

use of com.jme3.texture.TextureCubeMap in project jmonkeyengine by jMonkeyEngine.

the class PrefilteredEnvMapFaceGenerator method generatePrefilteredEnvMap.

/**
     * Generates the prefiltered env map (used for image based specular
     * lighting) With the GGX/Shlick brdf
     * {@link EnvMapUtils#getSphericalHarmonicsCoefficents(com.jme3.texture.TextureCubeMap)}
     * Note that the output cube map is in RGBA8 format.
     *
     * @param sourceEnvMap
     * @param targetMapSize the size of the irradiance map to generate
     * @param store
     * @param fixSeamsMethod the method to fix seams
     * @return The irradiance cube map for the given coefficients
     */
private TextureCubeMap generatePrefilteredEnvMap(TextureCubeMap sourceEnvMap, int targetMapSize, EnvMapUtils.FixSeamsMethod fixSeamsMethod, TextureCubeMap store) {
    TextureCubeMap pem = store;
    int nbMipMap = (int) (Math.log(targetMapSize) / Math.log(2) - 1);
    setEnd(nbMipMap);
    CubeMapWrapper sourceWrapper = new CubeMapWrapper(sourceEnvMap);
    CubeMapWrapper targetWrapper = new CubeMapWrapper(pem);
    Vector3f texelVect = new Vector3f();
    Vector3f color = new Vector3f();
    ColorRGBA outColor = new ColorRGBA();
    for (int mipLevel = 0; mipLevel < nbMipMap; mipLevel++) {
        float roughness = getRoughnessFromMip(mipLevel, nbMipMap);
        int nbSamples = getSampleFromMip(mipLevel, nbMipMap);
        int targetMipMapSize = (int) pow(2, nbMipMap + 1 - mipLevel);
        for (int y = 0; y < targetMipMapSize; y++) {
            for (int x = 0; x < targetMipMapSize; x++) {
                color.set(0, 0, 0);
                getVectorFromCubemapFaceTexCoord(x, y, targetMipMapSize, face, texelVect, EnvMapUtils.FixSeamsMethod.Wrap);
                prefilterEnvMapTexel(sourceWrapper, roughness, texelVect, nbSamples, color);
                outColor.set(Math.max(color.x, 0.0001f), Math.max(color.y, 0.0001f), Math.max(color.z, 0.0001f), 1);
                log.log(Level.FINE, "coords {0},{1}", new Object[] { x, y });
                targetWrapper.setPixel(x, y, face, mipLevel, outColor);
            }
        }
        progress();
    }
    return pem;
}

Example 24 with TextureCubeMap

use of com.jme3.texture.TextureCubeMap in project jmonkeyengine by jMonkeyEngine.

the class EnvironmentCamera method render.

@Override
public void render(final RenderManager renderManager) {
    if (jobs.isEmpty()) {
        return;
    }
    final SnapshotJob job = jobs.get(0);
    for (int i = 0; i < 6; i++) {
        viewports[i].clearScenes();
        viewports[i].attachScene(job.scene);
        renderManager.renderViewPort(viewports[i], 0.16f);
        buffers[i] = BufferUtils.createByteBuffer(size * size * imageFormat.getBitsPerPixel() / 8);
        renderManager.getRenderer().readFrameBufferWithFormat(framebuffers[i], buffers[i], imageFormat);
        images[i] = new Image(imageFormat, size, size, buffers[i], ColorSpace.Linear);
    }
    final TextureCubeMap map = EnvMapUtils.makeCubeMap(images[0], images[1], images[2], images[3], images[4], images[5], imageFormat);
    job.callback.done(map);
    map.getImage().dispose();
    jobs.remove(0);
}