Make use of UniformCache in many Renderables and switch from setUniform(const std::string&, ...) to setUniform(GLint, ...) in those cases

include/openspace/rendering/framebufferrenderer.h

@@ -31,6 +31,7 @@
 #include <openspace/util/updatestructures.h>
 
 #include <ghoul/opengl/ghoul_gl.h>
+#include <ghoul/opengl/uniformcache.h>
 #include <ghoul/glm.h>
 
 #include <map>
@@ -112,6 +113,7 @@ private:
     std::unique_ptr<ghoul::opengl::ProgramObject> _hdrBackGroundProgram;
 
     std::unique_ptr<ghoul::opengl::ProgramObject> _resolveProgram;
+    UniformCache(mainColorTexture, blackoutFactor, nAaSamples) _uniformCache;
 
     GLuint _screenQuad;
     GLuint _vertexPositionBuffer;

include/openspace/rendering/loadingscreen.h

@@ -28,6 +28,7 @@
 #include <ghoul/glm.h>
 #include <ghoul/misc/boolean.h>
 #include <ghoul/opengl/ghoul_gl.h>
+#include <ghoul/opengl/uniformcache.h>
 
 #include <memory>
 #include <mutex>
@@ -95,6 +96,8 @@ private:
     int _nItems;
 
     std::unique_ptr<ghoul::opengl::ProgramObject> _program;
+    UniformCache(logoTexture, useTexture, color) _uniformCache;
+
     std::unique_ptr<ghoul::opengl::Texture> _logoTexture;
 
     std::shared_ptr<ghoul::fontrendering::Font> _loadingFont;

include/openspace/rendering/screenspacerenderable.h

@@ -35,6 +35,7 @@
 #include <ghoul/opengl/programobject.h>
 #include <ghoul/opengl/texture.h>
 #include <ghoul/opengl/textureunit.h>
+#include <ghoul/opengl/uniformcache.h>
 
 #include <memory>
 
@@ -112,6 +113,7 @@ protected:
     GLuint _quad;
     GLuint _vertexPositionBuffer;
     std::unique_ptr<ghoul::opengl::Texture>  _texture;
+    UniformCache(occlusionDepth, alpha, modelTransform, viewProj, texture) _uniformCache;
     std::unique_ptr<ghoul::opengl::ProgramObject> _shader;
 
     bool _useEuclideanCoordinates;