示例#1
0
 private void autoSelectTechnique(RenderManager rm) {
   if (technique == null) {
     selectTechnique("Default", rm);
   } else {
     technique.makeCurrent(def.getAssetManager(), false, rm.getRenderer().getCaps());
   }
 }
示例#2
0
  /**
   * Select the technique to use for rendering this material.
   *
   * <p>If <code>name</code> is "Default", then one of the {@link MaterialDef#getDefaultTechniques()
   * default techniques} on the material will be selected. Otherwise, the named technique will be
   * found in the material definition.
   *
   * <p>Any candidate technique for selection (either default or named) must be verified to be
   * compatible with the system, for that, the <code>renderManager</code> is queried for
   * capabilities.
   *
   * @param name The name of the technique to select, pass "Default" to select one of the default
   *     techniques.
   * @param renderManager The {@link RenderManager render manager} to query for capabilities.
   * @throws IllegalArgumentException If "Default" is passed and no default techniques are available
   *     on the material definition, or if a name is passed but there's no technique by that name.
   * @throws UnsupportedOperationException If no candidate technique supports the system
   *     capabilities.
   */
  public void selectTechnique(String name, RenderManager renderManager) {
    // check if already created
    Technique tech = techniques.get(name);
    // When choosing technique, we choose one that
    // supports all the caps.
    EnumSet<Caps> rendererCaps = renderManager.getRenderer().getCaps();
    if (tech == null) {

      if (name.equals("Default")) {
        List<TechniqueDef> techDefs = def.getDefaultTechniques();
        if (techDefs == null || techDefs.isEmpty()) {
          throw new IllegalArgumentException(
              "No default techniques are available on material '" + def.getName() + "'");
        }

        TechniqueDef lastTech = null;
        for (TechniqueDef techDef : techDefs) {
          if (rendererCaps.containsAll(techDef.getRequiredCaps())) {
            // use the first one that supports all the caps
            tech = new Technique(this, techDef);
            techniques.put(name, tech);
            break;
          }
          lastTech = techDef;
        }
        if (tech == null) {
          throw new UnsupportedOperationException(
              "No default technique on material '"
                  + def.getName()
                  + "'\n"
                  + " is supported by the video hardware. The caps "
                  + lastTech.getRequiredCaps()
                  + " are required.");
        }

      } else {
        // create "special" technique instance
        TechniqueDef techDef = def.getTechniqueDef(name);
        if (techDef == null) {
          throw new IllegalArgumentException(
              "For material " + def.getName() + ", technique not found: " + name);
        }

        if (!rendererCaps.containsAll(techDef.getRequiredCaps())) {
          throw new UnsupportedOperationException(
              "The explicitly chosen technique '"
                  + name
                  + "' on material '"
                  + def.getName()
                  + "'\n"
                  + "requires caps "
                  + techDef.getRequiredCaps()
                  + " which are not "
                  + "supported by the video renderer");
        }

        tech = new Technique(this, techDef);
        techniques.put(name, tech);
      }
    } else if (technique == tech) {
      // attempting to switch to an already
      // active technique.
      return;
    }

    technique = tech;
    tech.makeCurrent(def.getAssetManager(), true, rendererCaps);

    // shader was changed
    sortingId = -1;
  }