Examples with LightList com.jme3.light.LightList used on opensource projects

Example 11 with LightList

use of com.jme3.light.LightList in project jmonkeyengine by jMonkeyEngine.

the class SinglePassAndImageBasedLightingLogic method updateLightListUniforms.

/**
     * Uploads the lights in the light list as two uniform arrays.<br/><br/> *
     * <p>
     * <code>uniform vec4 g_LightColor[numLights];</code><br/> //
     * g_LightColor.rgb is the diffuse/specular color of the light.<br/> //
     * g_Lightcolor.a is the type of light, 0 = Directional, 1 = Point, <br/> //
     * 2 = Spot. <br/> <br/>
     * <code>uniform vec4 g_LightPosition[numLights];</code><br/> //
     * g_LightPosition.xyz is the position of the light (for point lights)<br/>
     * // or the direction of the light (for directional lights).<br/> //
     * g_LightPosition.w is the inverse radius (1/r) of the light (for
     * attenuation) <br/> </p>
     */
protected int updateLightListUniforms(Shader shader, Geometry g, LightList lightList, int numLights, RenderManager rm, int startIndex, int lastTexUnit) {
    if (numLights == 0) {
        // this shader does not do lighting, ignore.
        return 0;
    }
    Uniform lightData = shader.getUniform("g_LightData");
    //8 lights * max 3
    lightData.setVector4Length(numLights * 3);
    Uniform ambientColor = shader.getUniform("g_AmbientLightColor");
    Uniform lightProbeData = shader.getUniform("g_LightProbeData");
    lightProbeData.setVector4Length(1);
    Uniform lightProbeIrrMap = shader.getUniform("g_IrradianceMap");
    Uniform lightProbePemMap = shader.getUniform("g_PrefEnvMap");
    lightProbe = null;
    if (startIndex != 0) {
        // apply additive blending for 2nd and future passes
        rm.getRenderer().applyRenderState(ADDITIVE_LIGHT);
        ambientColor.setValue(VarType.Vector4, ColorRGBA.Black);
    } else {
        lightProbe = extractIndirectLights(lightList, true);
        ambientColor.setValue(VarType.Vector4, ambientLightColor);
    }
    //If there is a lightProbe in the list we force it's render on the first pass
    if (lightProbe != null) {
        BoundingSphere s = (BoundingSphere) lightProbe.getBounds();
        lightProbeData.setVector4InArray(lightProbe.getPosition().x, lightProbe.getPosition().y, lightProbe.getPosition().z, 1f / s.getRadius(), 0);
        //assigning new texture indexes
        int irrUnit = lastTexUnit++;
        int pemUnit = lastTexUnit++;
        rm.getRenderer().setTexture(irrUnit, lightProbe.getIrradianceMap());
        lightProbeIrrMap.setValue(VarType.Int, irrUnit);
        rm.getRenderer().setTexture(pemUnit, lightProbe.getPrefilteredEnvMap());
        lightProbePemMap.setValue(VarType.Int, pemUnit);
    } else {
        //Disable IBL for this pass
        lightProbeData.setVector4InArray(0, 0, 0, -1, 0);
    }
    int lightDataIndex = 0;
    TempVars vars = TempVars.get();
    Vector4f tmpVec = vars.vect4f1;
    int curIndex;
    int endIndex = numLights + startIndex;
    for (curIndex = startIndex; curIndex < endIndex && curIndex < lightList.size(); curIndex++) {
        Light l = lightList.get(curIndex);
        if (l.getType() == Light.Type.Ambient) {
            endIndex++;
            continue;
        }
        ColorRGBA color = l.getColor();
        if (l.getType() != Light.Type.Probe) {
            lightData.setVector4InArray(color.getRed(), color.getGreen(), color.getBlue(), l.getType().getId(), lightDataIndex);
            lightDataIndex++;
        }
        switch(l.getType()) {
            case Directional:
                DirectionalLight dl = (DirectionalLight) l;
                Vector3f dir = dl.getDirection();
                //Data directly sent in view space to avoid a matrix mult for each pixel
                tmpVec.set(dir.getX(), dir.getY(), dir.getZ(), 0.0f);
                lightData.setVector4InArray(tmpVec.getX(), tmpVec.getY(), tmpVec.getZ(), -1, lightDataIndex);
                lightDataIndex++;
                //PADDING
                lightData.setVector4InArray(0, 0, 0, 0, lightDataIndex);
                lightDataIndex++;
                break;
            case Point:
                PointLight pl = (PointLight) l;
                Vector3f pos = pl.getPosition();
                float invRadius = pl.getInvRadius();
                tmpVec.set(pos.getX(), pos.getY(), pos.getZ(), 1.0f);
                lightData.setVector4InArray(tmpVec.getX(), tmpVec.getY(), tmpVec.getZ(), invRadius, lightDataIndex);
                lightDataIndex++;
                //PADDING
                lightData.setVector4InArray(0, 0, 0, 0, lightDataIndex);
                lightDataIndex++;
                break;
            case Spot:
                SpotLight sl = (SpotLight) l;
                Vector3f pos2 = sl.getPosition();
                Vector3f dir2 = sl.getDirection();
                float invRange = sl.getInvSpotRange();
                float spotAngleCos = sl.getPackedAngleCos();
                tmpVec.set(pos2.getX(), pos2.getY(), pos2.getZ(), 1.0f);
                lightData.setVector4InArray(tmpVec.getX(), tmpVec.getY(), tmpVec.getZ(), invRange, lightDataIndex);
                lightDataIndex++;
                tmpVec.set(dir2.getX(), dir2.getY(), dir2.getZ(), 0.0f);
                lightData.setVector4InArray(tmpVec.getX(), tmpVec.getY(), tmpVec.getZ(), spotAngleCos, lightDataIndex);
                lightDataIndex++;
                break;
            default:
                throw new UnsupportedOperationException("Unknown type of light: " + l.getType());
        }
    }
    vars.release();
    //Padding of unsued buffer space
    while (lightDataIndex < numLights * 3) {
        lightData.setVector4InArray(0f, 0f, 0f, 0f, lightDataIndex);
        lightDataIndex++;
    }
    return curIndex;
}

Example 12 with LightList

use of com.jme3.light.LightList in project jmonkeyengine by jMonkeyEngine.

the class SinglePassLightingLogic method render.

@Override
public void render(RenderManager renderManager, Shader shader, Geometry geometry, LightList lights, int lastTexUnit) {
    int nbRenderedLights = 0;
    Renderer renderer = renderManager.getRenderer();
    int batchSize = renderManager.getSinglePassLightBatchSize();
    if (lights.size() == 0) {
        updateLightListUniforms(shader, geometry, lights, batchSize, renderManager, 0);
        renderer.setShader(shader);
        renderMeshFromGeometry(renderer, geometry);
    } else {
        while (nbRenderedLights < lights.size()) {
            nbRenderedLights = updateLightListUniforms(shader, geometry, lights, batchSize, renderManager, nbRenderedLights);
            renderer.setShader(shader);
            renderMeshFromGeometry(renderer, geometry);
        }
    }
}

Example 13 with LightList

use of com.jme3.light.LightList in project jmonkeyengine by jMonkeyEngine.

the class SinglePassLightingLogic method updateLightListUniforms.

/**
     * Uploads the lights in the light list as two uniform arrays.<br/><br/> *
     * <p>
     * <code>uniform vec4 g_LightColor[numLights];</code><br/> //
     * g_LightColor.rgb is the diffuse/specular color of the light.<br/> //
     * g_Lightcolor.a is the type of light, 0 = Directional, 1 = Point, <br/> //
     * 2 = Spot. <br/> <br/>
     * <code>uniform vec4 g_LightPosition[numLights];</code><br/> //
     * g_LightPosition.xyz is the position of the light (for point lights)<br/>
     * // or the direction of the light (for directional lights).<br/> //
     * g_LightPosition.w is the inverse radius (1/r) of the light (for
     * attenuation) <br/> </p>
     */
protected int updateLightListUniforms(Shader shader, Geometry g, LightList lightList, int numLights, RenderManager rm, int startIndex) {
    if (numLights == 0) {
        // this shader does not do lighting, ignore.
        return 0;
    }
    Uniform lightData = shader.getUniform("g_LightData");
    //8 lights * max 3
    lightData.setVector4Length(numLights * 3);
    Uniform ambientColor = shader.getUniform("g_AmbientLightColor");
    if (startIndex != 0) {
        // apply additive blending for 2nd and future passes
        rm.getRenderer().applyRenderState(ADDITIVE_LIGHT);
        ambientColor.setValue(VarType.Vector4, ColorRGBA.Black);
    } else {
        ambientColor.setValue(VarType.Vector4, getAmbientColor(lightList, true, ambientLightColor));
    }
    int lightDataIndex = 0;
    TempVars vars = TempVars.get();
    Vector4f tmpVec = vars.vect4f1;
    int curIndex;
    int endIndex = numLights + startIndex;
    for (curIndex = startIndex; curIndex < endIndex && curIndex < lightList.size(); curIndex++) {
        Light l = lightList.get(curIndex);
        if (l.getType() == Light.Type.Ambient) {
            endIndex++;
            continue;
        }
        ColorRGBA color = l.getColor();
        //Color
        lightData.setVector4InArray(color.getRed(), color.getGreen(), color.getBlue(), l.getType().getId(), lightDataIndex);
        lightDataIndex++;
        switch(l.getType()) {
            case Directional:
                DirectionalLight dl = (DirectionalLight) l;
                Vector3f dir = dl.getDirection();
                //Data directly sent in view space to avoid a matrix mult for each pixel
                tmpVec.set(dir.getX(), dir.getY(), dir.getZ(), 0.0f);
                rm.getCurrentCamera().getViewMatrix().mult(tmpVec, tmpVec);
                //                        tmpVec.divideLocal(tmpVec.w);
                //                        tmpVec.normalizeLocal();
                lightData.setVector4InArray(tmpVec.getX(), tmpVec.getY(), tmpVec.getZ(), -1, lightDataIndex);
                lightDataIndex++;
                //PADDING
                lightData.setVector4InArray(0, 0, 0, 0, lightDataIndex);
                lightDataIndex++;
                break;
            case Point:
                PointLight pl = (PointLight) l;
                Vector3f pos = pl.getPosition();
                float invRadius = pl.getInvRadius();
                tmpVec.set(pos.getX(), pos.getY(), pos.getZ(), 1.0f);
                rm.getCurrentCamera().getViewMatrix().mult(tmpVec, tmpVec);
                //tmpVec.divideLocal(tmpVec.w);
                lightData.setVector4InArray(tmpVec.getX(), tmpVec.getY(), tmpVec.getZ(), invRadius, lightDataIndex);
                lightDataIndex++;
                //PADDING
                lightData.setVector4InArray(0, 0, 0, 0, lightDataIndex);
                lightDataIndex++;
                break;
            case Spot:
                SpotLight sl = (SpotLight) l;
                Vector3f pos2 = sl.getPosition();
                Vector3f dir2 = sl.getDirection();
                float invRange = sl.getInvSpotRange();
                float spotAngleCos = sl.getPackedAngleCos();
                tmpVec.set(pos2.getX(), pos2.getY(), pos2.getZ(), 1.0f);
                rm.getCurrentCamera().getViewMatrix().mult(tmpVec, tmpVec);
                // tmpVec.divideLocal(tmpVec.w);
                lightData.setVector4InArray(tmpVec.getX(), tmpVec.getY(), tmpVec.getZ(), invRange, lightDataIndex);
                lightDataIndex++;
                //We transform the spot direction in view space here to save 5 varying later in the lighting shader
                //one vec4 less and a vec4 that becomes a vec3
                //the downside is that spotAngleCos decoding happens now in the frag shader.
                tmpVec.set(dir2.getX(), dir2.getY(), dir2.getZ(), 0.0f);
                rm.getCurrentCamera().getViewMatrix().mult(tmpVec, tmpVec);
                tmpVec.normalizeLocal();
                lightData.setVector4InArray(tmpVec.getX(), tmpVec.getY(), tmpVec.getZ(), spotAngleCos, lightDataIndex);
                lightDataIndex++;
                break;
            case Probe:
                break;
            default:
                throw new UnsupportedOperationException("Unknown type of light: " + l.getType());
        }
    }
    vars.release();
    //Padding of unsued buffer space
    while (lightDataIndex < numLights * 3) {
        lightData.setVector4InArray(0f, 0f, 0f, 0f, lightDataIndex);
        lightDataIndex++;
    }
    return curIndex;
}

Example 14 with LightList

use of com.jme3.light.LightList 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 15 with LightList

use of com.jme3.light.LightList in project jmonkeyengine by jMonkeyEngine.

the class Technique method makeCurrent.

/**
     * Called by the material to determine which shader to use for rendering.
     * 
     * The {@link TechniqueDefLogic} is used to determine the shader to use
     * based on the {@link LightMode}.
     * 
     * @param renderManager The render manager for which the shader is to be selected.
     * @param rendererCaps The renderer capabilities which the shader should support.
     * @return A compatible shader.
     */
Shader makeCurrent(RenderManager renderManager, SafeArrayList<MatParamOverride> worldOverrides, SafeArrayList<MatParamOverride> forcedOverrides, LightList lights, EnumSet<Caps> rendererCaps) {
    TechniqueDefLogic logic = def.getLogic();
    AssetManager assetManager = owner.getMaterialDef().getAssetManager();
    dynamicDefines.clear();
    dynamicDefines.setAll(paramDefines);
    if (worldOverrides != null) {
        applyOverrides(dynamicDefines, worldOverrides);
    }
    if (forcedOverrides != null) {
        applyOverrides(dynamicDefines, forcedOverrides);
    }
    return logic.makeCurrent(assetManager, renderManager, rendererCaps, lights, dynamicDefines);
}