batch 2.3 enabling back optimizations

Minecraft.Client/Platform/Linux/Linux_UIController.cpp

@@ -35,6 +35,8 @@ static void restoreFixedFunctionStateAfterIggy() {
     RenderManager.MatrixMode(GL_MODELVIEW);
 
     RenderManager.Set_matrixDirty();
+    Minecraft::GetInstance()->textures->clearLastBoundId(); 
+    // 4jcraft: clears the last bound id, dumb fix but fine
 }
 
 void ConsoleUIController::init(S32 w, S32 h) {

Minecraft.Client/Rendering/GameRenderer.cpp

@@ -1778,7 +1778,7 @@ void GameRenderer::renderSnowAndRain(float a) {
                                 yy1 * s / 4.0f + ra * s);
 #endif
                     t->offset(0, 0, 0);
-                    t->end();
+                    
                 } else {
                     if (mode != 1) {
                         if (mode >= 0) t->end();

Minecraft.Client/Textures/Textures.cpp

@@ -541,11 +541,11 @@ void Textures::bindTextureLayers(ResourceLocation* resource) {
 }
 
 void Textures::bind(int id) {
-    // if (id != lastBoundId)
+    if (id != lastBoundId)
     {
         if (id < 0) return;
         glBindTexture(GL_TEXTURE_2D, id);
-        //	lastBoundId = id;
+        lastBoundId = id;
     }
 }