From e906af7c3c6e4efd84b344c9572167f6ddf836fc Mon Sep 17 00:00:00 2001
From: maxim_productengine <mnikolenko@productengine.com>
Date: Fri, 11 Jan 2019 17:39:26 +0200
Subject: SL-10327 FIXED Scalable preview of mesh model is shown with black bar
 on top in the Upload Model menu

---
 indra/newview/app_settings/settings.xml               |  2 +-
 indra/newview/llfloatermodelpreview.cpp               | 19 +++++++++++++++++--
 .../skins/default/xui/en/floater_model_preview.xml    |  8 +++-----
 3 files changed, 21 insertions(+), 8 deletions(-)

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 091992d1ab..76cfc03b53 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -8053,7 +8053,7 @@
   <key>PreviewRenderSize</key>  
   <map>
     <key>Comment</key>
-    <string>Resolution of the image rendered for the mesh upload preview</string>
+    <string>Resolution of the image rendered for the mesh upload preview (must be a power of 2)</string>
     <key>Persist</key>
     <integer>1</integer>
     <key>Type</key>
diff --git a/indra/newview/llfloatermodelpreview.cpp b/indra/newview/llfloatermodelpreview.cpp
index ffc993e868..62157306b1 100644
--- a/indra/newview/llfloatermodelpreview.cpp
+++ b/indra/newview/llfloatermodelpreview.cpp
@@ -427,8 +427,23 @@ void LLFloaterModelPreview::initModelPreview()
 	{
 		delete mModelPreview;
 	}
-	auto size = gSavedSettings.getS32("PreviewRenderSize");
-	mModelPreview = new LLModelPreview(size, size, this );
+
+	S32 tex_width = 512;
+	S32 tex_height = 512;
+
+	S32 max_width = llmin(gSavedSettings.getS32("PreviewRenderSize"), (S32)gPipeline.mScreenWidth);
+	S32 max_height = llmin(gSavedSettings.getS32("PreviewRenderSize"), (S32)gPipeline.mScreenHeight);
+	
+	while ((tex_width << 1) <= max_width)
+	{
+		tex_width <<= 1;
+	}
+	while ((tex_height << 1) <= max_height)
+	{
+		tex_height <<= 1;
+	}
+
+	mModelPreview = new LLModelPreview(tex_width, tex_height, this);
 	mModelPreview->setPreviewTarget(16.f);
 	mModelPreview->setDetailsCallback(boost::bind(&LLFloaterModelPreview::setDetails, this, _1, _2, _3, _4, _5));
 	mModelPreview->setModelUpdatedCallback(boost::bind(&LLFloaterModelPreview::toggleCalculateButton, this, _1));
diff --git a/indra/newview/skins/default/xui/en/floater_model_preview.xml b/indra/newview/skins/default/xui/en/floater_model_preview.xml
index ec9104d5e7..1b038a0244 100644
--- a/indra/newview/skins/default/xui/en/floater_model_preview.xml
+++ b/indra/newview/skins/default/xui/en/floater_model_preview.xml
@@ -1520,7 +1520,6 @@ Analysed:
     name="right_panel"
     top="0"
     left="640"
-    background_visible="true"
     width="375">
     <text
       follows="left|top"
@@ -1540,7 +1539,6 @@ Analysed:
       name="right_upper_panel"
       top="8"
       left="60"
-      background_visible="true"
       width="315">
       <combo_box
         top_pad="3"
@@ -1616,7 +1614,7 @@ Analysed:
       layout="topleft"
       left="2"
       name="physics_explode_label"
-      top="85"
+      bottom_pad="2"
       width="150">
       Preview Spread:
     </text>
@@ -1624,8 +1622,8 @@ Analysed:
       name="physics_explode"
       follows="right|bottom"
       valign="center"
-      top="15"
-      left="80"
+      left="105"
+      top_delta="-3"
       min_val="0.0"
       max_val="3.0"
       height="20"
-- 
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