diff --git a/effects/effect.cpp b/effects/effect.cpp
index 387a374bb..7648345d3 100644
--- a/effects/effect.cpp
+++ b/effects/effect.cpp
@@ -117,7 +117,9 @@ Effect::Effect(Clip* c, const EffectMeta *em) :
   meta(em),
   flags_(0),
   shader_program_(nullptr),
-  texture(nullptr),
+  texture(0),
+  tex_width_(0),
+  tex_height_(0),
   isOpen(false),
   bound(false),
   iterations(1),
@@ -886,24 +888,26 @@ GLuint Effect::process_superimpose(double timecode) {
     redrew_image = true;
   }
 
-  if (texture == nullptr || texture->width() != img.width() || texture->height() != img.height()) {
+  QOpenGLFunctions* f = QOpenGLContext::currentContext()->functions();
+
+  if (texture == 0 || tex_width_ != img.width() || tex_height_ != img.height()) {
     delete_texture();
 
-    texture = new QOpenGLTexture(QOpenGLTexture::Target2D);
-    texture->setSize(img.width(), img.height());
-    texture->setFormat(QOpenGLTexture::RGBA8_UNorm);
-    texture->setMipLevels(texture->maximumMipLevels());
-    texture->setMinMagFilters(QOpenGLTexture::Linear, QOpenGLTexture::Linear);
-    texture->allocateStorage(QOpenGLTexture::RGBA, QOpenGLTexture::UInt8);
+    tex_width_ = img.width();
+    tex_height_ = img.height();
 
-    redrew_image = true;
+    f->glTexImage2D(
+          GL_TEXTURE_2D, 0, GL_RGBA8, tex_width_, tex_height_, 0, GL_RGBA,  GL_UNSIGNED_BYTE, img.constBits()
+        );
+
+    redrew_image = false;
   }
 
   if (redrew_image) {
-    texture->setData(0, QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, img.constBits());
+    f->glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, tex_width_, tex_height_,  GL_RGBA, GL_UNSIGNED_BYTE, img.constBits());
   }
 
-  return texture->textureId();
+  return texture;
 }
 
 void Effect::process_audio(double, double, quint8*, int, int) {}
@@ -1080,8 +1084,8 @@ bool Effect::valueHasChanged(double timecode) {
 }
 
 void Effect::delete_texture() {
-  delete texture;
-  texture = nullptr;
+  QOpenGLContext::currentContext()->functions()->glDeleteTextures(1, &texture);
+  texture = 0;
 }
 
 const EffectMeta* get_meta_from_name(const QString& input) {
diff --git a/effects/effect.h b/effects/effect.h
index 89d4809bd..8fc3918cb 100644
--- a/effects/effect.h
+++ b/effects/effect.h
@@ -229,7 +229,9 @@ protected:
 
   // superimpose effect
   QImage img;
-  QOpenGLTexture* texture;
+  GLuint texture;
+  int tex_width_;
+  int tex_height_;
 
   // enable effect to update constantly
   virtual bool AlwaysUpdate();
diff --git a/rendering/cacher.cpp b/rendering/cacher.cpp
index 784ee3b87..308440b25 100644
--- a/rendering/cacher.cpp
+++ b/rendering/cacher.cpp
@@ -1124,8 +1124,6 @@ void Cacher::CloseWorker() {
     avformat_close_input(&formatCtx);
   }
 
-  clip->reset();
-
   qInfo() << "Clip closed on track" << clip->track();
 }
 
diff --git a/rendering/framebufferobject.cpp b/rendering/framebufferobject.cpp
index c88ad1406..c69995064 100644
--- a/rendering/framebufferobject.cpp
+++ b/rendering/framebufferobject.cpp
@@ -66,7 +66,7 @@ void FramebufferObject::Create(QOpenGLContext *ctx, int width, int height)
         );*/
 
   ctx->functions()->glTexImage2D(
-        GL_TEXTURE_2D, 0, GL_RGBA32F, width, height, 0, GL_RGBA,  GL_FLOAT, nullptr
+        GL_TEXTURE_2D, 0, GL_RGBA16F, width, height, 0, GL_RGBA,  GL_FLOAT, nullptr
         );
 
   // set texture filtering to bilinear
diff --git a/rendering/renderfunctions.cpp b/rendering/renderfunctions.cpp
index b7cd99347..2d2d0b1e7 100644
--- a/rendering/renderfunctions.cpp
+++ b/rendering/renderfunctions.cpp
@@ -468,7 +468,7 @@ GLuint compose_sequence(ComposeSequenceParams &params) {
             params.texture_failed = true;
           } else {
             // retrieve ID from c->texture
-            textureID = c->texture->textureId();
+            textureID = c->texture;
           }
 
           if (textureID == 0) {
@@ -530,6 +530,13 @@ GLuint compose_sequence(ComposeSequenceParams &params) {
               }
 
 #ifndef NO_OCIO
+
+              // Convert texture to float
+              if (textureID != c->fbo.at(0).texture() && textureID != c->fbo.at(1).texture()) {
+                textureID = draw_clip(params.ctx, params.pipeline, c->fbo.at(fbo_switcher), textureID, true);
+                fbo_switcher = !fbo_switcher;
+              }
+
               // Convert frame from source to linear colorspace
               if (olive::CurrentConfig.enable_color_management)
               {
diff --git a/timeline/clip.cpp b/timeline/clip.cpp
index 240830155..99b2612e6 100644
--- a/timeline/clip.cpp
+++ b/timeline/clip.cpp
@@ -57,8 +57,7 @@ Clip::Clip(Sequence* s) :
   undeletable = false;
   replaced = false;
   open_ = false;
-
-  reset();
+  texture = 0;
 }
 
 ClipPtr Clip::copy(Sequence* s) {
@@ -196,10 +195,6 @@ void Clip::move(ComboAction* ca, long iin, long iout, long iclip_in, int itrack,
   }
 }
 
-void Clip::reset() {
-  texture = nullptr;
-}
-
 void Clip::reset_audio() {
   if (UsesCacher()) {
     cacher.ResetAudio();
@@ -503,8 +498,8 @@ void Clip::Close(bool wait) {
     }
 
     // destroy opengl texture in main thread
-    delete texture;
-    texture = nullptr;
+    QOpenGLContext::currentContext()->functions()->glDeleteTextures(1, &texture);
+    texture = 0;
 
     // close all effects
     for (int i=0;i<effects.size();i++) {
@@ -563,64 +558,45 @@ bool Clip::Retrieve()
 
     if (frame != nullptr && cacher.queue()->contains(frame)) {
 
+      bool allocate_data = false;
+
       // check if the opengl texture exists yet, create it if not
-      if (texture == nullptr) {
-        texture = new QOpenGLTexture(QOpenGLTexture::Target2D);
+      if (texture == 0) {
+        QOpenGLFunctions* f = QOpenGLContext::currentContext()->functions();
 
-        // the raw frame size may differ from the one we're using (e.g. a lower resolution proxy), so we make sure
-        // the texture is using the correct dimensions, but then treat it as if it's the original resolution in the
-        // composition
-        texture->setSize(cacher.media_width(), cacher.media_height());
+        // create texture object
+        f->glGenTextures(1, &texture);
+
+        f->glBindTexture(GL_TEXTURE_2D, texture);
+
+        // set texture filtering to bilinear
+        f->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        f->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+        // queue an allocation ahead
+        allocate_data = true;
 
-        texture->setFormat(QOpenGLTexture::RGBA32F);
-        texture->setMipLevels(texture->maximumMipLevels());
-        texture->setMinMagFilters(QOpenGLTexture::Linear, QOpenGLTexture::Linear);
-        texture->allocateStorage(QOpenGLTexture::RGBA, QOpenGLTexture::Float32);
       }
 
       QOpenGLFunctions* f = QOpenGLContext::currentContext()->functions();
 
       f->glPixelStorei(GL_UNPACK_ROW_LENGTH, frame->linesize[0]/kRGBAComponentCount);
 
-      /*
-      // 2 data buffers to ping-pong between
-      bool using_db_1 = true;
-      uint8_t* data_buffer_1 = frame->data[0];
-      uint8_t* data_buffer_2 = nullptr;
+      int video_width = cacher.media_width();
+      int video_height = cacher.media_height();
 
-      int frame_size = frame->linesize[0]*frame->height;
-
-      for (int i=0;i<effects.size();i++) {
-        Effect* e = effects.at(i).get();
-        if ((e->Flags() & Effect::ImageFlag) && e->IsEnabled()) {
-          if (data_buffer_1 == frame->data[0]) {
-            data_buffer_1 = new uint8_t[frame_size];
-            data_buffer_2 = new uint8_t[frame_size];
-
-            memcpy(data_buffer_1, frame->data[0], frame_size);
-          }
-
-          e->process_image(get_timecode(this, cacher_frame),
-                           using_db_1 ? data_buffer_1 : data_buffer_2,
-                           using_db_1 ? data_buffer_2 : data_buffer_1,
-                           frame_size
-                           );
-
-          using_db_1 = !using_db_1;
-        }
+      if (allocate_data) {
+        // the raw frame size may differ from the one we're using (e.g. a lower resolution proxy), so we make sure
+        // the texture is using the correct dimensions, but then treat it as if it's the original resolution in the
+        // composition
+        f->glTexImage2D(
+              GL_TEXTURE_2D, 0, GL_RGBA8, video_width, video_height, 0, GL_RGBA,  GL_UNSIGNED_BYTE, frame->data[0]
+              );
+      } else {
+        f->glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, video_width, video_height,  GL_RGBA, GL_UNSIGNED_BYTE, frame->data[0]);
       }
-      */
 
-      texture->setData(QOpenGLTexture::RGBA,
-                       QOpenGLTexture::UInt8,
-                       const_cast<const uint8_t*>(frame->data[0]));
-
-      /*
-      if (data_buffer_1 != frame->data[0]) {
-        delete [] data_buffer_1;
-        delete [] data_buffer_2;
-      }
-      */
+      f->glBindTexture(GL_TEXTURE_2D, 0);
 
       f->glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
 
diff --git a/timeline/clip.h b/timeline/clip.h
index a09eae6c0..ca3f56eb6 100644
--- a/timeline/clip.h
+++ b/timeline/clip.h
@@ -116,7 +116,6 @@ public:
   AVRational time_base();
 
   void reset_audio();
-  void reset();
   void refresh();
 
   long length();
@@ -154,7 +153,7 @@ public:
 
   // video playback variables
   QVector<FramebufferObject> fbo;
-  QOpenGLTexture* texture;
+  GLuint texture;
   long texture_frame;
 
 #ifndef NO_OCIO