Examples with Technique com.jme3.material.Technique used on opensource projects

Example 11 with Technique

use of com.jme3.material.Technique in project jmonkeyengine by jMonkeyEngine.

the class Material method getSortId.

/**
     * Returns the sorting ID or sorting index for this material.
     *
     * <p>The sorting ID is used internally by the system to sort rendering
     * of geometries. It sorted to reduce shader switches, if the shaders
     * are equal, then it is sorted by textures.
     *
     * @return The sorting ID used for sorting geometries for rendering.
     */
public int getSortId() {
    if (sortingId == -1 && technique != null) {
        sortingId = technique.getSortId() << 16;
        int texturesSortId = 17;
        for (int i = 0; i < paramValues.size(); i++) {
            MatParam param = paramValues.getValue(i);
            if (!param.getVarType().isTextureType()) {
                continue;
            }
            Texture texture = (Texture) param.getValue();
            if (texture == null) {
                continue;
            }
            Image image = texture.getImage();
            if (image == null) {
                continue;
            }
            int textureId = image.getId();
            if (textureId == -1) {
                textureId = 0;
            }
            texturesSortId = texturesSortId * 23 + textureId;
        }
        sortingId |= texturesSortId & 0xFFFF;
    }
    return sortingId;
}

Example 12 with Technique

use of com.jme3.material.Technique in project jmonkeyengine by jMonkeyEngine.

the class Material method render.

/**
     * Called by {@link RenderManager} to render the geometry by
     * using this material.
     * <p>
     * The material is rendered as follows:
     * <ul>
     * <li>Determine which technique to use to render the material -
     * either what the user selected via
     * {@link #selectTechnique(java.lang.String, com.jme3.renderer.RenderManager)
     * Material.selectTechnique()},
     * or the first default technique that the renderer supports
     * (based on the technique's {@link TechniqueDef#getRequiredCaps() requested rendering capabilities})<ul>
     * <li>If the technique has been changed since the last frame, then it is notified via
     * {@link Technique#makeCurrent(com.jme3.asset.AssetManager, boolean, java.util.EnumSet)
     * Technique.makeCurrent()}.
     * If the technique wants to use a shader to render the model, it should load it at this part -
     * the shader should have all the proper defines as declared in the technique definition,
     * including those that are bound to material parameters.
     * The technique can re-use the shader from the last frame if
     * no changes to the defines occurred.</li></ul>
     * <li>Set the {@link RenderState} to use for rendering. The render states are
     * applied in this order (later RenderStates override earlier RenderStates):<ol>
     * <li>{@link TechniqueDef#getRenderState() Technique Definition's RenderState}
     * - i.e. specific renderstate that is required for the shader.</li>
     * <li>{@link #getAdditionalRenderState() Material Instance Additional RenderState}
     * - i.e. ad-hoc renderstate set per model</li>
     * <li>{@link RenderManager#getForcedRenderState() RenderManager's Forced RenderState}
     * - i.e. renderstate requested by a {@link com.jme3.post.SceneProcessor} or
     * post-processing filter.</li></ol>
     * <li>If the technique {@link TechniqueDef#isUsingShaders() uses a shader}, then the uniforms of the shader must be updated.<ul>
     * <li>Uniforms bound to material parameters are updated based on the current material parameter values.</li>
     * <li>Uniforms bound to world parameters are updated from the RenderManager.
     * Internally {@link UniformBindingManager} is used for this task.</li>
     * <li>Uniforms bound to textures will cause the texture to be uploaded as necessary.
     * The uniform is set to the texture unit where the texture is bound.</li></ul>
     * <li>If the technique uses a shader, the model is then rendered according
     * to the lighting mode specified on the technique definition.<ul>
     * <li>{@link LightMode#SinglePass single pass light mode} fills the shader's light uniform arrays
     * with the first 4 lights and renders the model once.</li>
     * <li>{@link LightMode#MultiPass multi pass light mode} light mode renders the model multiple times,
     * for the first light it is rendered opaque, on subsequent lights it is
     * rendered with {@link BlendMode#AlphaAdditive alpha-additive} blending and depth writing disabled.</li>
     * </ul>
     * <li>For techniques that do not use shaders,
     * fixed function OpenGL is used to render the model (see {@link GL1Renderer} interface):<ul>
     * <li>OpenGL state ({@link FixedFuncBinding}) that is bound to material parameters is updated. </li>
     * <li>The texture set on the material is uploaded and bound.
     * Currently only 1 texture is supported for fixed function techniques.</li>
     * <li>If the technique uses lighting, then OpenGL lighting state is updated
     * based on the light list on the geometry, otherwise OpenGL lighting is disabled.</li>
     * <li>The mesh is uploaded and rendered.</li>
     * </ul>
     * </ul>
     *
     * @param geometry The geometry to render
     * @param lights Presorted and filtered light list to use for rendering
     * @param renderManager The render manager requesting the rendering
     */
public void render(Geometry geometry, LightList lights, RenderManager renderManager) {
    if (technique == null) {
        selectTechnique(TechniqueDef.DEFAULT_TECHNIQUE_NAME, renderManager);
    }
    TechniqueDef techniqueDef = technique.getDef();
    Renderer renderer = renderManager.getRenderer();
    EnumSet<Caps> rendererCaps = renderer.getCaps();
    if (techniqueDef.isNoRender()) {
        return;
    }
    // Apply render state
    updateRenderState(renderManager, renderer, techniqueDef);
    // Get world overrides
    SafeArrayList<MatParamOverride> overrides = geometry.getWorldMatParamOverrides();
    // Select shader to use
    Shader shader = technique.makeCurrent(renderManager, overrides, renderManager.getForcedMatParams(), lights, rendererCaps);
    // Begin tracking which uniforms were changed by material.
    clearUniformsSetByCurrent(shader);
    // Set uniform bindings
    renderManager.updateUniformBindings(shader);
    // Set material parameters
    int unit = updateShaderMaterialParameters(renderer, shader, overrides, renderManager.getForcedMatParams());
    // Clear any uniforms not changed by material.
    resetUniformsNotSetByCurrent(shader);
    // Delegate rendering to the technique
    technique.render(renderManager, shader, geometry, lights, unit);
}

Example 13 with Technique

use of com.jme3.material.Technique in project jmonkeyengine by jMonkeyEngine.

the class Technique method render.

/**
     * Render the technique according to its {@link TechniqueDefLogic}.
     * 
     * @param renderManager The render manager to perform the rendering against.
     * @param shader The shader that was selected in 
     * {@link #makeCurrent(com.jme3.renderer.RenderManager, java.util.EnumSet)}.
     * @param geometry The geometry to render
     * @param lights Lights which influence the geometry.
     */
void render(RenderManager renderManager, Shader shader, Geometry geometry, LightList lights, int lastTexUnit) {
    TechniqueDefLogic logic = def.getLogic();
    logic.render(renderManager, shader, geometry, lights, lastTexUnit);
}

Example 14 with Technique

use of com.jme3.material.Technique in project jmonkeyengine by jMonkeyEngine.

the class Camera method setClipPlane.

/**
     * Sets a clipPlane for this camera.
     * The clipPlane is used to recompute the
     * projectionMatrix using the plane as the near plane     
     * This technique is known as the oblique near-plane clipping method introduced by Eric Lengyel
     * more info here
     * <ul>
     * <li><a href="http://www.terathon.com/code/oblique.html">http://www.terathon.com/code/oblique.html</a>
     * <li><a href="http://aras-p.info/texts/obliqueortho.html">http://aras-p.info/texts/obliqueortho.html</a>
     * <li><a href="http://hacksoflife.blogspot.com/2008/12/every-now-and-then-i-come-across.html">http://hacksoflife.blogspot.com/2008/12/every-now-and-then-i-come-across.html</a>
     * </ul>
     *
     * Note that this will work properly only if it's called on each update, and be aware that it won't work properly with the sky bucket.
     * if you want to handle the sky bucket, look at how it's done in SimpleWaterProcessor.java
     * @param clipPlane the plane
     * @param side the side the camera stands from the plane
     */
public void setClipPlane(Plane clipPlane, Plane.Side side) {
    float sideFactor = 1;
    if (side == Plane.Side.Negative) {
        sideFactor = -1;
    }
    //we are on the other side of the plane no need to clip anymore.
    if (clipPlane.whichSide(location) == side) {
        return;
    }
    TempVars vars = TempVars.get();
    try {
        Matrix4f p = projectionMatrixOverride.set(projectionMatrix);
        Matrix4f ivm = viewMatrix;
        Vector3f point = clipPlane.getNormal().mult(clipPlane.getConstant(), vars.vect1);
        Vector3f pp = ivm.mult(point, vars.vect2);
        Vector3f pn = ivm.multNormal(clipPlane.getNormal(), vars.vect3);
        Vector4f clipPlaneV = vars.vect4f1.set(pn.x * sideFactor, pn.y * sideFactor, pn.z * sideFactor, -(pp.dot(pn)) * sideFactor);
        Vector4f v = vars.vect4f2.set(0, 0, 0, 0);
        v.x = (Math.signum(clipPlaneV.x) + p.m02) / p.m00;
        v.y = (Math.signum(clipPlaneV.y) + p.m12) / p.m11;
        v.z = -1.0f;
        v.w = (1.0f + p.m22) / p.m23;
        //clipPlaneV.x * v.x + clipPlaneV.y * v.y + clipPlaneV.z * v.z + clipPlaneV.w * v.w;
        float dot = clipPlaneV.dot(v);
        Vector4f c = clipPlaneV.multLocal(2.0f / dot);
        p.m20 = c.x - p.m30;
        p.m21 = c.y - p.m31;
        p.m22 = c.z - p.m32;
        p.m23 = c.w - p.m33;
        setProjectionMatrix(p);
    } finally {
        vars.release();
    }
}

Example 15 with Technique

use of com.jme3.material.Technique in project jmonkeyengine by jMonkeyEngine.

the class RenderManager method renderGeometry.

/**
     * Renders the given geometry.
     * <p>
     * First the proper world matrix is set, if 
     * the geometry's {@link Geometry#setIgnoreTransform(boolean) ignore transform}
     * feature is enabled, the identity world matrix is used, otherwise, the 
     * geometry's {@link Geometry#getWorldMatrix() world transform matrix} is used. 
     * <p>
     * Once the world matrix is applied, the proper material is chosen for rendering.
     * If a {@link #setForcedMaterial(com.jme3.material.Material) forced material} is
     * set on this RenderManager, then it is used for rendering the geometry,
     * otherwise, the {@link Geometry#getMaterial() geometry's material} is used.
     * <p>
     * If a {@link #setForcedTechnique(java.lang.String) forced technique} is
     * set on this RenderManager, then it is selected automatically
     * on the geometry's material and is used for rendering. Otherwise, one
     * of the {@link MaterialDef#getDefaultTechniques() default techniques} is
     * used.
     * <p>
     * If a {@link #setForcedRenderState(com.jme3.material.RenderState) forced
     * render state} is set on this RenderManager, then it is used
     * for rendering the material, and the material's own render state is ignored.
     * Otherwise, the material's render state is used as intended.
     * 
     * @param geom The geometry to render
       * 
     * @see Technique
     * @see RenderState
     * @see Material#selectTechnique(java.lang.String, com.jme3.renderer.RenderManager) 
     * @see Material#render(com.jme3.scene.Geometry, com.jme3.renderer.RenderManager) 
     */
public void renderGeometry(Geometry geom) {
    if (geom.isIgnoreTransform()) {
        setWorldMatrix(Matrix4f.IDENTITY);
    } else {
        setWorldMatrix(geom.getWorldMatrix());
    }
    // Perform light filtering if we have a light filter.
    LightList lightList = geom.getWorldLightList();
    if (lightFilter != null) {
        filteredLightList.clear();
        lightFilter.filterLights(geom, filteredLightList);
        lightList = filteredLightList;
    }
    Material material = geom.getMaterial();
    //else the geom is not rendered
    if (forcedTechnique != null) {
        MaterialDef matDef = material.getMaterialDef();
        if (matDef.getTechniqueDefs(forcedTechnique) != null) {
            Technique activeTechnique = material.getActiveTechnique();
            String previousTechniqueName = activeTechnique != null ? activeTechnique.getDef().getName() : TechniqueDef.DEFAULT_TECHNIQUE_NAME;
            geom.getMaterial().selectTechnique(forcedTechnique, this);
            //saving forcedRenderState for future calls
            RenderState tmpRs = forcedRenderState;
            if (geom.getMaterial().getActiveTechnique().getDef().getForcedRenderState() != null) {
                //forcing forced technique renderState
                forcedRenderState = geom.getMaterial().getActiveTechnique().getDef().getForcedRenderState();
            }
            // use geometry's material
            material.render(geom, lightList, this);
            material.selectTechnique(previousTechniqueName, this);
            //restoring forcedRenderState
            forcedRenderState = tmpRs;
        //Reverted this part from revision 6197
        //If forcedTechnique does not exists, and forcedMaterial is not set, the geom MUST NOT be rendered
        } else if (forcedMaterial != null) {
            // use forced material
            forcedMaterial.render(geom, lightList, this);
        }
    } else if (forcedMaterial != null) {
        // use forced material
        forcedMaterial.render(geom, lightList, this);
    } else {
        material.render(geom, lightList, this);
    }
}