Support materialLUT for livre engine

plugins/engines/livre/LivreScene.cpp

@@ -43,24 +43,20 @@ LivreScene::LivreScene(const Renderers& renderers,
 
 void LivreScene::commitTransferFunctionData()
 {
-    TransferFunction& transferFunction = getTransferFunction();
-    Vector4fs& diffuseColors = transferFunction.getDiffuseColors();
-    if (diffuseColors.size() != 256)
-    {
-        BRAYNS_ERROR << "Livre only supports color maps with 256 values"
-                     << std::endl;
-        return;
-    }
-    uint8_ts lut;
-    lut.reserve(1024);
-    for (const auto& color : diffuseColors)
+    auto& livreTF =
+        _livre.getFrameData().getRenderSettings().getTransferFunction();
+    const auto& diffuseColors = getTransferFunction().getDiffuseColors();
+
+    livreTF.getDiffuse().resize(diffuseColors.size());
+    livreTF.getAlpha().resize(diffuseColors.size());
+    for (size_t i = 0; i < diffuseColors.size(); ++i)
     {
-        lut.push_back(color.x() * 255.f);
-        lut.push_back(color.y() * 255.f);
-        lut.push_back(color.z() * 255.f);
-        lut.push_back(color.w() * 255.f);
+        const auto& color = diffuseColors[i];
+        livreTF.getDiffuse()[i] = {color[0], color[1], color[2]};
+        livreTF.getAlpha()[i] = color[3];
     }
-    _livre.getFrameData().getRenderSettings().getTransferFunction().setLut(lut);
+    const auto& range = getTransferFunction().getValuesRange();
+    livreTF.setRange({range[0], range[1]});
 }
 
 void LivreScene::commitVolumeData()

plugins/extensions/plugins/ZeroEQPlugin.h

@@ -32,7 +32,6 @@
 #include <lexis/render/Histogram.h>
 #include <lexis/render/frame.h>
 #include <lexis/render/imageJPEG.h>
-#include <lexis/render/lookupTable1D.h>
 #include <lexis/render/materialLUT.h>
 #include <lexis/render/viewport.h>
 
@@ -106,19 +105,6 @@ class ZeroEQPlugin : public ExtensionPlugin
      */
     void _spikesUpdated();
 
-    /**
-     * @brief This method is called when the lookup table is updated by a ZeroEQ
-     * event
-     */
-    void _LookupTable1DUpdated();
-
-    /**
-     * @brief This method is called when a lookup table 1D is requested by a
-     * ZeroEQ event
-     * @return True if the method was successful, false otherwise
-     */
-    bool _requestLookupTable1D();
-
     /**
      * @brief This method is called when the material lookup table is updated by
      *        a ZeroEQ event