From d225030745884165510d1db4bd06ccbdd3e2327c Mon Sep 17 00:00:00 2001
From: javasabr <javasabr@gmail.com>
Date: Thu, 8 Feb 2018 07:08:48 +0300
Subject: [PATCH] fixed updating data.

---
 .../com/jme3/renderer/opengl/GLRenderer.java  | 25 +++++++++----------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java b/jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java
index b55aa8dd4..c7e4b94b5 100644
--- a/jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java
+++ b/jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java
@@ -1198,24 +1198,26 @@ public final class GLRenderer implements Renderer {
      */
     protected void updateShaderStorageBlock(final Shader shader, final StorageBlock storageBlock) {
 
-        int shaderId = shader.getId();
-
         assert storageBlock.getName() != null;
         assert shader.getId() > 0;
 
-        bindProgram(shader);
-
-        storageBlock.clearUpdateNeeded();
-
         final ShaderStorageBufferObject storageData = (ShaderStorageBufferObject) storageBlock.getStorageData();
         if (storageData.getUniqueId() == -1 || storageData.isUpdateNeeded()) {
             updateBufferData(storageData);
         }
 
-        final int blockIndex = gl4.glGetProgramResourceIndex(shaderId, GL4.GL_SHADER_STORAGE_BLOCK, storageBlock.getName());
+        if (storageBlock.isUpdateNeeded()) {
 
-        gl4.glShaderStorageBlockBinding(shaderId, blockIndex, storageData.getBinding());
-        gl4.glBindBufferBase(GL4.GL_SHADER_STORAGE_BUFFER, storageData.getBinding(), storageData.getId());
+            bindProgram(shader);
+
+            final int shaderId = shader.getId();
+            final int blockIndex = gl4.glGetProgramResourceIndex(shaderId, GL4.GL_SHADER_STORAGE_BLOCK, storageBlock.getName());
+
+            gl4.glShaderStorageBlockBinding(shaderId, blockIndex, storageData.getBinding());
+            gl4.glBindBufferBase(GL4.GL_SHADER_STORAGE_BUFFER, storageData.getBinding(), storageData.getId());
+
+            storageBlock.clearUpdateNeeded();
+        }
     }
 
     protected void updateShaderUniforms(Shader shader) {
@@ -1236,10 +1238,7 @@ public final class GLRenderer implements Renderer {
     protected void updateShaderStorageBlocks(final Shader shader) {
         final ListMap<String, StorageBlock> storageBlocks = shader.getStorageBlockMap();
         for (int i = 0; i < storageBlocks.size(); i++) {
-            final StorageBlock storageBlock = storageBlocks.getValue(i);
-            if (storageBlock.isUpdateNeeded()) {
-                updateShaderStorageBlock(shader, storageBlock);
-            }
+            updateShaderStorageBlock(shader, storageBlocks.getValue(i));
         }
     }