Examples with Point3 org.sunflow.math.Point3 used on opensource projects

Example 6 with Point3

use of org.sunflow.math.Point3 in project joons-renderer by joonhyublee.

the class PerlinModifier method modify.

@Override
public void modify(ShadingState state) {
    Point3 p = state.transformWorldToObject(state.getPoint());
    p.x *= size;
    p.y *= size;
    p.z *= size;
    Vector3 normal = state.transformNormalWorldToObject(state.getNormal());
    double f0 = f(p.x, p.y, p.z);
    double fx = f(p.x + .0001, p.y, p.z);
    double fy = f(p.x, p.y + .0001, p.z);
    double fz = f(p.x, p.y, p.z + .0001);
    normal.x -= scale * (fx - f0) / .0001;
    normal.y -= scale * (fy - f0) / .0001;
    normal.z -= scale * (fz - f0) / .0001;
    normal.normalize();
    state.getNormal().set(state.transformNormalObjectToWorld(normal));
    state.getNormal().normalize();
    state.setBasis(OrthoNormalBasis.makeFromW(state.getNormal()));
}

Example 7 with Point3

use of org.sunflow.math.Point3 in project joons-renderer by joonhyublee.

the class RA2Parser method parse.

@Override
public boolean parse(String filename, SunflowAPIInterface api) {
    try {
        UI.printInfo(Module.USER, "RA2 - Reading geometry: \"%s\" ...", filename);
        File file = new File(filename);
        FileInputStream stream = new FileInputStream(filename);
        MappedByteBuffer map = stream.getChannel().map(FileChannel.MapMode.READ_ONLY, 0, file.length());
        map.order(ByteOrder.LITTLE_ENDIAN);
        FloatBuffer buffer = map.asFloatBuffer();
        float[] data = new float[buffer.capacity()];
        for (int i = 0; i < data.length; i++) {
            data[i] = buffer.get(i);
        }
        stream.close();
        api.parameter("points", "point", "vertex", data);
        int[] triangles = new int[3 * (data.length / 9)];
        for (int i = 0; i < triangles.length; i++) {
            triangles[i] = i;
        }
        // create geo
        api.parameter("triangles", triangles);
        api.geometry(filename, "triangle_mesh");
        // create shader
        api.shader(filename + ".shader", "simple");
        // create instance
        api.parameter("shaders", filename + ".shader");
        api.instance(filename + ".instance", filename);
    } catch (FileNotFoundException e) {
        Logger.getLogger(RA2Parser.class.getName()).log(Level.SEVERE, null, e);
        return false;
    } catch (IOException e) {
        Logger.getLogger(RA2Parser.class.getName()).log(Level.SEVERE, null, e);
        return false;
    }
    try {
        filename = filename.replace(".ra2", ".txt");
        UI.printInfo(Module.USER, "RA2 - Reading camera  : \"%s\" ...", filename);
        Parser p = new Parser(filename);
        Point3 eye = new Point3();
        eye.x = p.getNextFloat();
        eye.y = p.getNextFloat();
        eye.z = p.getNextFloat();
        Point3 to = new Point3();
        to.x = p.getNextFloat();
        to.y = p.getNextFloat();
        to.z = p.getNextFloat();
        Vector3 up = new Vector3();
        switch(p.getNextInt()) {
            case 0:
                up.set(1, 0, 0);
                break;
            case 1:
                up.set(0, 1, 0);
                break;
            case 2:
                up.set(0, 0, 1);
                break;
            default:
                UI.printWarning(Module.USER, "RA2 - Invalid up vector specification - using Z axis");
                up.set(0, 0, 1);
                break;
        }
        api.parameter("eye", eye);
        api.parameter("target", to);
        api.parameter("up", up);
        String cameraName = filename + ".camera";
        api.parameter(FOV, 80f);
        api.camera(cameraName, "pinhole");
        api.parameter("camera", cameraName);
        api.parameter("resolutionX", 1024);
        api.parameter("resolutionY", 1024);
        api.options(SunflowAPI.DEFAULT_OPTIONS);
        p.close();
    } catch (FileNotFoundException e) {
        UI.printWarning(Module.USER, "RA2 - Camera file not found");
    } catch (IOException e) {
        Logger.getLogger(RA2Parser.class.getName()).log(Level.SEVERE, null, e);
        return false;
    }
    return true;
}

Example 8 with Point3

use of org.sunflow.math.Point3 in project joons-renderer by joonhyublee.

the class TriangleMeshLight method update.

@Override
public boolean update(ParameterList pl, SunflowAPI api) {
    radiance = pl.getColor("radiance", radiance);
    numSamples = pl.getInt("samples", numSamples);
    if (super.update(pl, api)) {
        // precompute triangle areas and normals
        areas = new float[getNumPrimitives()];
        ngs = new Vector3[getNumPrimitives()];
        totalArea = 0;
        for (int tri3 = 0, i = 0; tri3 < triangles.length; tri3 += 3, i++) {
            int a = triangles[tri3 + 0];
            int b = triangles[tri3 + 1];
            int c = triangles[tri3 + 2];
            Point3 v0p = getPoint(a);
            Point3 v1p = getPoint(b);
            Point3 v2p = getPoint(c);
            ngs[i] = Point3.normal(v0p, v1p, v2p);
            areas[i] = 0.5f * ngs[i].length();
            ngs[i].normalize();
            totalArea += areas[i];
        }
    } else {
        return false;
    }
    return true;
}

Example 9 with Point3

use of org.sunflow.math.Point3 in project joons-renderer by joonhyublee.

the class IrradianceCacheGIEngine method insert.

private void insert(Point3 p, Vector3 n, float r0, Color irr) {
    if (tolerance <= 0) {
        return;
    }
    Node node = root;
    r0 = MathUtils.clamp(r0 * tolerance, minSpacing, maxSpacing) * invTolerance;
    if (root.isInside(p)) {
        while (node.sideLength >= (4.0 * r0 * tolerance)) {
            int k = 0;
            k |= (p.x > node.center.x) ? 1 : 0;
            k |= (p.y > node.center.y) ? 2 : 0;
            k |= (p.z > node.center.z) ? 4 : 0;
            if (node.children[k] == null) {
                Point3 c = new Point3(node.center);
                c.x += ((k & 1) == 0) ? -node.quadSideLength : node.quadSideLength;
                c.y += ((k & 2) == 0) ? -node.quadSideLength : node.quadSideLength;
                c.z += ((k & 4) == 0) ? -node.quadSideLength : node.quadSideLength;
                node.children[k] = new Node(c, node.halfSideLength);
            }
            node = node.children[k];
        }
    }
    Sample s = new Sample(p, n, r0, irr);
    s.next = node.first;
    node.first = s;
}

Example 10 with Point3

use of org.sunflow.math.Point3 in project joons-renderer by joonhyublee.

the class ParticleSurface method prepareShadingState.

@Override
public void prepareShadingState(ShadingState state) {
    state.init();
    state.getRay().getPoint(state.getPoint());
    Point3 localPoint = state.transformWorldToObject(state.getPoint());
    localPoint.x -= particles[3 * state.getPrimitiveID() + 0];
    localPoint.y -= particles[3 * state.getPrimitiveID() + 1];
    localPoint.z -= particles[3 * state.getPrimitiveID() + 2];
    state.getNormal().set(localPoint.x, localPoint.y, localPoint.z);
    state.getNormal().normalize();
    state.setShader(state.getInstance().getShader(0));
    state.setModifier(state.getInstance().getModifier(0));
    // into object space
    Vector3 worldNormal = state.transformNormalObjectToWorld(state.getNormal());
    state.getNormal().set(worldNormal);
    state.getNormal().normalize();
    state.getGeoNormal().set(state.getNormal());
    state.setBasis(OrthoNormalBasis.makeFromW(state.getNormal()));
}