Examples with Instance org.sunflow.core.Instance used on opensource projects

Example 6 with Instance

use of org.sunflow.core.Instance in project joons-renderer by joonhyublee.

the class Plane method prepareShadingState.

@Override
public void prepareShadingState(ShadingState state) {
    state.init();
    state.getRay().getPoint(state.getPoint());
    Instance parent = state.getInstance();
    Vector3 worldNormal = state.transformNormalObjectToWorld(normal);
    state.getNormal().set(worldNormal);
    state.getGeoNormal().set(worldNormal);
    state.setShader(parent.getShader(0));
    state.setModifier(parent.getModifier(0));
    Point3 p = state.transformWorldToObject(state.getPoint());
    float hu, hv;
    switch(k) {
        case 0:
            {
                hu = p.y;
                hv = p.z;
                break;
            }
        case 1:
            {
                hu = p.z;
                hv = p.x;
                break;
            }
        case 2:
            {
                hu = p.x;
                hv = p.y;
                break;
            }
        default:
            hu = hv = 0;
    }
    state.getUV().x = hu * bnu + hv * bnv + bnd;
    state.getUV().y = hu * cnu + hv * cnv + cnd;
    state.setBasis(OrthoNormalBasis.makeFromW(normal));
}

Example 7 with Instance

use of org.sunflow.core.Instance in project joons-renderer by joonhyublee.

the class SunflowAPI method instance.

@Override
public final void instance(String name, String geoname) {
    if (!isIncremental(geoname)) {
        // we are declaring this instance for the first time
        if (renderObjects.has(name)) {
            UI.printError(Module.API, "Unable to declare instance \"%s\", name is already in use", name);
            parameterList.clear(true);
            return;
        }
        parameter("geometry", geoname);
        renderObjects.put(name, new Instance());
    }
    if (lookupInstance(name) != null) {
        update(name);
    } else {
        UI.printError(Module.API, "Unable to update instance \"%s\" - instance object was not found", name);
        parameterList.clear(true);
    }
}

Example 8 with Instance

use of org.sunflow.core.Instance in project joons-renderer by joonhyublee.

the class BanchoffSurface method prepareShadingState.

@Override
public void prepareShadingState(ShadingState state) {
    state.init();
    state.getRay().getPoint(state.getPoint());
    Instance parent = state.getInstance();
    Point3 n = state.transformWorldToObject(state.getPoint());
    state.getNormal().set(n.x * (2 * n.x * n.x - 1), n.y * (2 * n.y * n.y - 1), n.z * (2 * n.z * n.z - 1));
    state.getNormal().normalize();
    state.setShader(parent.getShader(0));
    state.setModifier(parent.getModifier(0));
    // into world space
    Vector3 worldNormal = state.transformNormalObjectToWorld(state.getNormal());
    state.getNormal().set(worldNormal);
    state.getNormal().normalize();
    state.getGeoNormal().set(state.getNormal());
    // create basis in world space
    state.setBasis(OrthoNormalBasis.makeFromW(state.getNormal()));
}

Example 9 with Instance

use of org.sunflow.core.Instance in project joons-renderer by joonhyublee.

the class Cylinder method prepareShadingState.

@Override
public void prepareShadingState(ShadingState state) {
    state.init();
    state.getRay().getPoint(state.getPoint());
    Instance parent = state.getInstance();
    Point3 localPoint = state.transformWorldToObject(state.getPoint());
    state.getNormal().set(localPoint.x, localPoint.y, 0);
    state.getNormal().normalize();
    float phi = (float) Math.atan2(state.getNormal().y, state.getNormal().x);
    if (phi < 0) {
        phi += 2 * Math.PI;
    }
    state.getUV().x = phi / (float) (2 * Math.PI);
    state.getUV().y = (localPoint.z + 1) * 0.5f;
    state.setShader(parent.getShader(0));
    state.setModifier(parent.getModifier(0));
    // into world space
    Vector3 worldNormal = state.transformNormalObjectToWorld(state.getNormal());
    Vector3 v = state.transformVectorObjectToWorld(new Vector3(0, 0, 1));
    state.getNormal().set(worldNormal);
    state.getNormal().normalize();
    state.getGeoNormal().set(state.getNormal());
    // compute basis in world space
    state.setBasis(OrthoNormalBasis.makeFromWV(state.getNormal(), v));
}

Example 10 with Instance

use of org.sunflow.core.Instance in project joons-renderer by joonhyublee.

the class JuliaFractal method prepareShadingState.

@Override
public void prepareShadingState(ShadingState state) {
    state.init();
    state.getRay().getPoint(state.getPoint());
    Instance parent = state.getInstance();
    // compute local normal
    Point3 p = state.transformWorldToObject(state.getPoint());
    float gx1w = p.x - DELTA;
    float gx1x = p.y;
    float gx1y = p.z;
    float gx1z = 0;
    float gx2w = p.x + DELTA;
    float gx2x = p.y;
    float gx2y = p.z;
    float gx2z = 0;
    float gy1w = p.x;
    float gy1x = p.y - DELTA;
    float gy1y = p.z;
    float gy1z = 0;
    float gy2w = p.x;
    float gy2x = p.y + DELTA;
    float gy2y = p.z;
    float gy2z = 0;
    float gz1w = p.x;
    float gz1x = p.y;
    float gz1y = p.z - DELTA;
    float gz1z = 0;
    float gz2w = p.x;
    float gz2x = p.y;
    float gz2y = p.z + DELTA;
    float gz2z = 0;
    for (int i = 0; i < maxIterations; i++) {
        {
            // z = z*z + c
            float nw = gx1w * gx1w - gx1x * gx1x - gx1y * gx1y - gx1z * gx1z + cw;
            gx1x = 2 * gx1w * gx1x + cx;
            gx1y = 2 * gx1w * gx1y + cy;
            gx1z = 2 * gx1w * gx1z + cz;
            gx1w = nw;
        }
        {
            // z = z*z + c
            float nw = gx2w * gx2w - gx2x * gx2x - gx2y * gx2y - gx2z * gx2z + cw;
            gx2x = 2 * gx2w * gx2x + cx;
            gx2y = 2 * gx2w * gx2y + cy;
            gx2z = 2 * gx2w * gx2z + cz;
            gx2w = nw;
        }
        {
            // z = z*z + c
            float nw = gy1w * gy1w - gy1x * gy1x - gy1y * gy1y - gy1z * gy1z + cw;
            gy1x = 2 * gy1w * gy1x + cx;
            gy1y = 2 * gy1w * gy1y + cy;
            gy1z = 2 * gy1w * gy1z + cz;
            gy1w = nw;
        }
        {
            // z = z*z + c
            float nw = gy2w * gy2w - gy2x * gy2x - gy2y * gy2y - gy2z * gy2z + cw;
            gy2x = 2 * gy2w * gy2x + cx;
            gy2y = 2 * gy2w * gy2y + cy;
            gy2z = 2 * gy2w * gy2z + cz;
            gy2w = nw;
        }
        {
            // z = z*z + c
            float nw = gz1w * gz1w - gz1x * gz1x - gz1y * gz1y - gz1z * gz1z + cw;
            gz1x = 2 * gz1w * gz1x + cx;
            gz1y = 2 * gz1w * gz1y + cy;
            gz1z = 2 * gz1w * gz1z + cz;
            gz1w = nw;
        }
        {
            // z = z*z + c
            float nw = gz2w * gz2w - gz2x * gz2x - gz2y * gz2y - gz2z * gz2z + cw;
            gz2x = 2 * gz2w * gz2x + cx;
            gz2y = 2 * gz2w * gz2y + cy;
            gz2z = 2 * gz2w * gz2z + cz;
            gz2w = nw;
        }
    }
    float gradX = length(gx2w, gx2x, gx2y, gx2z) - length(gx1w, gx1x, gx1y, gx1z);
    float gradY = length(gy2w, gy2x, gy2y, gy2z) - length(gy1w, gy1x, gy1y, gy1z);
    float gradZ = length(gz2w, gz2x, gz2y, gz2z) - length(gz1w, gz1x, gz1y, gz1z);
    Vector3 n = new Vector3(gradX, gradY, gradZ);
    state.getNormal().set(state.transformNormalObjectToWorld(n));
    state.getNormal().normalize();
    state.getGeoNormal().set(state.getNormal());
    state.setBasis(OrthoNormalBasis.makeFromW(state.getNormal()));
    state.getPoint().x += state.getNormal().x * epsilon * 20;
    state.getPoint().y += state.getNormal().y * epsilon * 20;
    state.getPoint().z += state.getNormal().z * epsilon * 20;
    state.setShader(parent.getShader(0));
    state.setModifier(parent.getModifier(0));
}