Examples with ColorRGBA com.jme3.math.ColorRGBA used on opensource projects

Example 71 with ColorRGBA

use of com.jme3.math.ColorRGBA in project jmonkeyengine by jMonkeyEngine.

the class ColorOverlayFilter method read.

@Override
public void read(JmeImporter im) throws IOException {
    super.read(im);
    InputCapsule ic = im.getCapsule(this);
    color = (ColorRGBA) ic.readSavable("color", ColorRGBA.White);
}

Example 72 with ColorRGBA

use of com.jme3.math.ColorRGBA in project jmonkeyengine by jMonkeyEngine.

the class LightHelper method toLight.

public Light toLight(Structure structure, BlenderContext blenderContext) throws BlenderFileException {
    Light result = (Light) blenderContext.getLoadedFeature(structure.getOldMemoryAddress(), LoadedDataType.FEATURE);
    if (result != null) {
        return result;
    }
    Light light = null;
    int type = ((Number) structure.getFieldValue("type")).intValue();
    switch(type) {
        case // Lamp
        0:
            light = new PointLight();
            float distance = ((Number) structure.getFieldValue("dist")).floatValue();
            ((PointLight) light).setRadius(distance);
            break;
        case // Sun
        1:
            LOGGER.log(Level.WARNING, "'Sun' lamp is not supported in jMonkeyEngine. Using PointLight with radius = Float.MAX_VALUE.");
            light = new PointLight();
            ((PointLight) light).setRadius(Float.MAX_VALUE);
            break;
        case // Spot
        2:
            light = new SpotLight();
            // range
            ((SpotLight) light).setSpotRange(((Number) structure.getFieldValue("dist")).floatValue());
            // outer angle
            float outerAngle = ((Number) structure.getFieldValue("spotsize")).floatValue() * FastMath.DEG_TO_RAD * 0.5f;
            ((SpotLight) light).setSpotOuterAngle(outerAngle);
            // inner angle
            float spotblend = ((Number) structure.getFieldValue("spotblend")).floatValue();
            spotblend = FastMath.clamp(spotblend, 0, 1);
            float innerAngle = outerAngle * (1 - spotblend);
            ((SpotLight) light).setSpotInnerAngle(innerAngle);
            break;
        case // Hemi
        3:
            LOGGER.log(Level.WARNING, "'Hemi' lamp is not supported in jMonkeyEngine. Using DirectionalLight instead.");
        case // Area
        4:
            light = new DirectionalLight();
            break;
        default:
            throw new BlenderFileException("Unknown light source type: " + type);
    }
    float r = ((Number) structure.getFieldValue("r")).floatValue();
    float g = ((Number) structure.getFieldValue("g")).floatValue();
    float b = ((Number) structure.getFieldValue("b")).floatValue();
    light.setColor(new ColorRGBA(r, g, b, 1.0f));
    light.setName(structure.getName());
    return light;
}

Example 73 with ColorRGBA

use of com.jme3.math.ColorRGBA in project jmonkeyengine by jMonkeyEngine.

the class EnvMapUtils 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
     */
public static TextureCubeMap generatePrefilteredEnvMap(TextureCubeMap sourceEnvMap, int targetMapSize, FixSeamsMethod fixSeamsMethod, TextureCubeMap store) {
    TextureCubeMap pem = store;
    if (pem == null) {
        pem = new TextureCubeMap(targetMapSize, targetMapSize, Image.Format.RGB16F);
        pem.setMagFilter(Texture.MagFilter.Bilinear);
        pem.setMinFilter(Texture.MinFilter.Trilinear);
        pem.getImage().setColorSpace(ColorSpace.Linear);
    }
    int nbMipMap = (int) (Math.log(targetMapSize) / Math.log(2) - 1);
    CubeMapWrapper sourceWrapper = new CubeMapWrapper(sourceEnvMap);
    CubeMapWrapper targetWrapper = new CubeMapWrapper(pem);
    targetWrapper.initMipMaps(nbMipMap);
    Vector3f texelVect = new Vector3f();
    Vector3f color = new Vector3f();
    ColorRGBA outColor = new ColorRGBA();
    for (int mipLevel = 0; mipLevel < nbMipMap; mipLevel++) {
        System.err.println("mip level " + mipLevel);
        float roughness = getRoughnessFromMip(mipLevel, nbMipMap);
        int nbSamples = getSampleFromMip(mipLevel, nbMipMap);
        int targetMipMapSize = (int) pow(2, nbMipMap + 1 - mipLevel);
        for (int face = 0; face < 6; face++) {
            System.err.println("face " + face);
            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, FixSeamsMethod.Wrap);
                    prefilterEnvMapTexel(sourceWrapper, roughness, texelVect, nbSamples, color);
                    outColor.set(color.x, color.y, color.z, 1.0f);
                    // System.err.println("coords " + x + "," + y);
                    targetWrapper.setPixel(x, y, face, mipLevel, outColor);
                }
            }
        }
    }
    return pem;
}

Example 74 with ColorRGBA

use of com.jme3.math.ColorRGBA in project jmonkeyengine by jMonkeyEngine.

the class EnvMapUtils method getSphericalHarmonicsCoefficents.

/**
     * Returns the Spherical Harmonics coefficients for this cube map.
     *
     * The method used is the one from this article :
     * http://graphics.stanford.edu/papers/envmap/envmap.pdf
     *
     * Also good resources on spherical harmonics
     * http://dickyjim.wordpress.com/2013/09/04/spherical-harmonics-for-beginners/
     *
     * @param cubeMap the environment cube map to compute SH for
     * @param fixSeamsMethod method to fix seams when computing the SH
     * coefficients
     * @return an array of 9 vector3f representing thos coefficients for each
     * r,g,b channnel
     */
public static Vector3f[] getSphericalHarmonicsCoefficents(TextureCubeMap cubeMap, FixSeamsMethod fixSeamsMethod) {
    Vector3f[] shCoef = new Vector3f[NUM_SH_COEFFICIENT];
    float[] shDir = new float[9];
    float weightAccum = 0.0f;
    float weight;
    if (cubeMap.getImage().getData(0) == null) {
        throw new IllegalStateException("The cube map must contain Efficient data, if you rendered the cube map on the GPU plase use renderer.readFrameBuffer, to create a CPU image");
    }
    int width = cubeMap.getImage().getWidth();
    int height = cubeMap.getImage().getHeight();
    Vector3f texelVect = new Vector3f();
    ColorRGBA color = new ColorRGBA();
    CubeMapWrapper envMapReader = new CubeMapWrapper(cubeMap);
    for (int face = 0; face < 6; face++) {
        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                weight = getSolidAngleAndVector(x, y, width, face, texelVect, fixSeamsMethod);
                evalShBasis(texelVect, shDir);
                envMapReader.getPixel(x, y, face, color);
                for (int i = 0; i < NUM_SH_COEFFICIENT; i++) {
                    if (shCoef[i] == null) {
                        shCoef[i] = new Vector3f();
                    }
                    shCoef[i].setX(shCoef[i].x + color.r * shDir[i] * weight);
                    shCoef[i].setY(shCoef[i].y + color.g * shDir[i] * weight);
                    shCoef[i].setZ(shCoef[i].z + color.b * shDir[i] * weight);
                }
                weightAccum += weight;
            }
        }
    }
    /* Normalization - The sum of solid angle should be equal to the solid angle of the sphere (4 PI), so
         * normalize in order our weightAccum exactly match 4 PI. */
    for (int i = 0; i < NUM_SH_COEFFICIENT; ++i) {
        shCoef[i].multLocal(4.0f * PI / weightAccum);
    }
    return shCoef;
}

Example 75 with ColorRGBA

use of com.jme3.math.ColorRGBA 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;
}