Examples with Shader com.jme3.shader.Shader used on opensource projects

Example 36 with Shader

use of com.jme3.shader.Shader 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 37 with Shader

use of com.jme3.shader.Shader 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 38 with Shader

use of com.jme3.shader.Shader 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);
}

Example 39 with Shader

use of com.jme3.shader.Shader 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 40 with Shader

use of com.jme3.shader.Shader in project jmonkeyengine by jMonkeyEngine.

the class TechniqueDef method loadShader.

private Shader loadShader(AssetManager assetManager, EnumSet<Caps> rendererCaps, DefineList defines) {
    StringBuilder sb = new StringBuilder();
    sb.append(shaderPrologue);
    defines.generateSource(sb, defineNames, defineTypes);
    String definesSourceCode = sb.toString();
    Shader shader;
    if (isUsingShaderNodes()) {
        ShaderGenerator shaderGenerator = assetManager.getShaderGenerator(rendererCaps);
        if (shaderGenerator == null) {
            throw new UnsupportedOperationException("ShaderGenerator was not initialized, " + "make sure assetManager.getGenerator(caps) has been called");
        }
        shaderGenerator.initialize(this);
        shader = shaderGenerator.generateShader(definesSourceCode);
    } else {
        shader = new Shader();
        for (ShaderType type : ShaderType.values()) {
            String language = shaderLanguages.get(type);
            String shaderSourceAssetName = shaderNames.get(type);
            if (language == null || shaderSourceAssetName == null) {
                continue;
            }
            String shaderSourceCode = (String) assetManager.loadAsset(shaderSourceAssetName);
            shader.addSource(type, shaderSourceAssetName, shaderSourceCode, definesSourceCode, language);
        }
    }
    if (getWorldBindings() != null) {
        for (UniformBinding binding : getWorldBindings()) {
            shader.addUniformBinding(binding);
        }
    }
    return shader;
}