refactoring.

jme3-core/src/main/java/com/jme3/material/Material.java

@@ -822,10 +822,10 @@ public class Material implements CloneableSmartAsset, Cloneable, Savable {
             MatParam param = paramValues.getValue(i);
             VarType type = param.getVarType();
 
-            if(type == VarType.ShaderStorageBufferObject) {
+            if(isBO(type)) {
 
-                final StorageBlock storageBlock = shader.getStorageBlock(param.getPrefixedName());
-                storageBlock.setStorageData(param.getValue());
+                final ShaderBufferBlock bufferBlock = shader.getBufferBlock(param.getPrefixedName());
+                bufferBlock.setBufferObject((BufferObject) param.getValue());
 
             } else {
 
@@ -848,6 +848,16 @@ public class Material implements CloneableSmartAsset, Cloneable, Savable {
         return unit;
     }
 
+    /**
+     * Returns true if the type is Buffer Object's type.
+     *
+     * @param type the material parameter type.
+     * @return true if the type is Buffer Object's type.
+     */
+    private boolean isBO(final VarType type) {
+        return type == VarType.ShaderStorageBufferObject || type == VarType.UniformBufferObject;
+    }
+
     private void updateRenderState(RenderManager renderManager, Renderer renderer, TechniqueDef techniqueDef) {
         if (renderManager.getForcedRenderState() != null) {
             renderer.applyRenderState(renderManager.getForcedRenderState());

jme3-core/src/main/java/com/jme3/renderer/Renderer.java

@@ -270,13 +270,6 @@ public interface Renderer {
      */
     public void updateBufferData(VertexBuffer vb);
 
-    /**
-     * Uploads a shader storage buffer object to the GPU.
-     *
-     * @param ssbo the shader storage buffer object to upload.
-     */
-    public void updateBufferData(ShaderStorageBufferObject ssbo);
-
     /**
      * Uploads data of the buffer object on the GPU.
      *

jme3-core/src/main/java/com/jme3/renderer/opengl/GL3.java

@@ -191,4 +191,24 @@ public interface GL3 extends GL2 {
      * @param buffer a buffer object to bind to the specified binding point
      */
     public void glBindBufferBase(int target, int index, int buffer);
+
+    /**
+     * Binding points for active uniform blocks are assigned using glUniformBlockBinding. Each of a program's active
+     * uniform blocks has a corresponding uniform buffer binding point. program is the name of a program object for
+     * which the command glLinkProgram has been issued in the past.
+     * <p>
+     * If successful, glUniformBlockBinding specifies that program will use the data store of the buffer object bound
+     * to the binding point uniformBlockBinding to extract the values of the uniforms in the uniform block identified
+     * by uniformBlockIndex.
+     * <p>
+     * When a program object is linked or re-linked, the uniform buffer object binding point assigned to each of its
+     * active uniform blocks is reset to zero.
+     *
+     * @param program             The name of a program object containing the active uniform block whose binding to
+     *                            assign.
+     * @param uniformBlockIndex   The index of the active uniform block within program whose binding to assign.
+     * @param uniformBlockBinding Specifies the binding point to which to bind the uniform block with index
+     *                            uniformBlockIndex within program.
+     */
+    public void glUniformBlockBinding(int program, int uniformBlockIndex, int uniformBlockBinding);
 }

jme3-core/src/main/java/com/jme3/renderer/opengl/GLDebugDesktop.java

@@ -125,4 +125,10 @@ public class GLDebugDesktop extends GLDebugES implements GL2, GL3, GL4 {
         gl.glBlendEquationSeparate(colorMode, alphaMode);
         checkError();
     }
+
+    @Override
+    public void glUniformBlockBinding(final int program, final int uniformBlockIndex, final int uniformBlockBinding) {
+        gl3.glUniformBlockBinding(program, uniformBlockIndex, uniformBlockBinding);
+        checkError();
+    }
 }

jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java

@@ -1207,33 +1207,40 @@ public final class GLRenderer implements Renderer {
     }
 
     /**
-     * Update the storage block for the shader.
+     * Updates the buffer block for the shader.
      *
      * @param shader the shader.
-     * @param storageBlock the storage block.
+     * @param bufferBlock the storage block.
      */
-    protected void updateShaderStorageBlock(final Shader shader, final StorageBlock storageBlock) {
+    protected void updateShaderBufferBlock(final Shader shader, final ShaderBufferBlock bufferBlock) {
 
-        assert storageBlock.getName() != null;
+        assert bufferBlock.getName() != null;
         assert shader.getId() > 0;
 
-        final ShaderStorageBufferObject storageData = (ShaderStorageBufferObject) storageBlock.getStorageData();
-        if (storageData.getUniqueId() == -1 || storageData.isUpdateNeeded()) {
-            updateBufferData(storageData);
+        final BufferObject bufferObject = bufferBlock.getBufferObject();
+        if (bufferObject.getUniqueId() == -1 || bufferObject.isUpdateNeeded()) {
+            updateBufferData(bufferObject);
         }
 
-        if (storageBlock.isUpdateNeeded()) {
-
-            bindProgram(shader);
+        if (!bufferBlock.isUpdateNeeded()) {
+            return;
+        }
 
-            final int shaderId = shader.getId();
-            final int blockIndex = gl4.glGetProgramResourceIndex(shaderId, GL4.GL_SHADER_STORAGE_BLOCK, storageBlock.getName());
+        bindProgram(shader);
 
-            gl4.glShaderStorageBlockBinding(shaderId, blockIndex, storageData.getBinding());
-            gl4.glBindBufferBase(GL4.GL_SHADER_STORAGE_BUFFER, storageData.getBinding(), storageData.getId());
+        final int shaderId = shader.getId();
 
-            storageBlock.clearUpdateNeeded();
+        if (bufferObject instanceof ShaderStorageBufferObject) {
+            final int blockIndex = gl4.glGetProgramResourceIndex(shaderId, GL4.GL_SHADER_STORAGE_BLOCK, bufferBlock.getName());
+            gl4.glShaderStorageBlockBinding(shaderId, blockIndex, bufferObject.getBinding());
+            gl4.glBindBufferBase(GL4.GL_SHADER_STORAGE_BUFFER, bufferObject.getBinding(), bufferObject.getId());
+        } else if (bufferObject instanceof UniformBufferObject) {
+            final int blockIndex = gl3.glGetUniformBlockIndex(shaderId, bufferBlock.getName());
+            gl3.glBindBufferBase(GL3.GL_UNIFORM_BUFFER, bufferObject.getBinding(), bufferObject.getId());
+            gl3.glUniformBlockBinding(GL3.GL_UNIFORM_BUFFER, blockIndex, bufferObject.getBinding());
         }
+
+        bufferBlock.clearUpdateNeeded();
     }
 
     protected void updateShaderUniforms(Shader shader) {
@@ -1247,14 +1254,14 @@ public final class GLRenderer implements Renderer {
     }
 
     /**
-     * Updates all shader's storage blocks.
+     * Updates all shader's buffer blocks.
      *
      * @param shader the shader.
      */
-    protected void updateShaderStorageBlocks(final Shader shader) {
-        final ListMap<String, StorageBlock> storageBlocks = shader.getStorageBlockMap();
-        for (int i = 0; i < storageBlocks.size(); i++) {
-            updateShaderStorageBlock(shader, storageBlocks.getValue(i));
+    protected void updateShaderBufferBlocks(final Shader shader) {
+        final ListMap<String, ShaderBufferBlock> bufferBlocks = shader.getBufferBlockMap();
+        for (int i = 0; i < bufferBlocks.size(); i++) {
+            updateShaderBufferBlock(shader, bufferBlocks.getValue(i));
         }
     }
 
@@ -1476,7 +1483,7 @@ public final class GLRenderer implements Renderer {
             assert shader.getId() > 0;
 
             updateShaderUniforms(shader);
-            updateShaderStorageBlocks(shader);
+            updateShaderBufferBlocks(shader);
             bindProgram(shader);
         }
     }

jme3-core/src/main/java/com/jme3/shader/Shader.java

@@ -53,9 +53,9 @@ public final class Shader extends NativeObject {
     private final ListMap<String, Uniform> uniforms;
 
     /**
-     * Maps storage block name to the storage block variable.
+     * Maps storage block name to the buffer block variables.
      */
-    private final ListMap<String, StorageBlock> storageBlocks;
+    private final ListMap<String, ShaderBufferBlock> bufferBlocks;
     
     /**
      * Uniforms bound to {@link UniformBinding}s.
@@ -227,7 +227,7 @@ public final class Shader extends NativeObject {
         super();
         shaderSourceList = new ArrayList<>();
         uniforms = new ListMap<>();
-        storageBlocks = new ListMap<>();
+        bufferBlocks = new ListMap<>();
         attribs = new IntMap<>();
         boundUniforms = new ArrayList<>();
     }
@@ -246,7 +246,7 @@ public final class Shader extends NativeObject {
         }
         
         uniforms = null;
-        storageBlocks  = null;
+        bufferBlocks = null;
         boundUniforms = null;
         attribs = null;
     }
@@ -296,24 +296,24 @@ public final class Shader extends NativeObject {
     }
 
     /**
-     * Get or create a storage block by the name.
+     * Gets or creates a buffer block by the name.
      *
-     * @param name the storage block's name.
-     * @return the storage block.
+     * @param name the buffer block's name.
+     * @return the buffer block.
      */
-    public StorageBlock getStorageBlock(final String name) {
+    public ShaderBufferBlock getBufferBlock(final String name) {
 
         assert name.startsWith("m_");
 
-        StorageBlock storageBlock = storageBlocks.get(name);
+        ShaderBufferBlock block = bufferBlocks.get(name);
 
-        if (storageBlock == null) {
-            storageBlock = new StorageBlock();
-            storageBlock.name = name;
-            storageBlocks.put(name, storageBlock);
+        if (block == null) {
+            block = new ShaderBufferBlock();
+            block.name = name;
+            bufferBlocks.put(name, block);
         }
 
-        return storageBlock;
+        return block;
     }
 
     public void removeUniform(String name){
@@ -321,12 +321,12 @@ public final class Shader extends NativeObject {
     }
 
     /**
-     * Remove a storage block by the name.
+     * Removes a buffer block by the name.
      *
-     * @param name the storage block's name.
+     * @param name the buffer block's name.
      */
-    public void removeStorageBlock(final String name){
-        storageBlocks.remove(name);
+    public void removeBufferBlock(final String name){
+        bufferBlocks.remove(name);
     }
 
     public Attribute getAttribute(VertexBuffer.Type attribType){
@@ -345,12 +345,12 @@ public final class Shader extends NativeObject {
     }
 
     /**
-     * Get the storage blocks map.
+     * Get the buffer blocks map.
      *
-     * @return the storage blocks map.
+     * @return the buffer blocks map.
      */
-    public ListMap<String, StorageBlock> getStorageBlockMap() {
-        return storageBlocks;
+    public ListMap<String, ShaderBufferBlock> getBufferBlockMap() {
+        return bufferBlocks;
     }
 
     public ArrayList<Uniform> getBoundUniforms() {
@@ -366,7 +366,7 @@ public final class Shader extends NativeObject {
         return getClass().getSimpleName() + 
                 "[numSources=" + shaderSourceList.size() +
                 ", numUniforms=" + uniforms.size() +
-                ", numStorageBlocks=" + storageBlocks.size() +
+                ", numBufferBlocks=" + bufferBlocks.size() +
                 ", shaderSources=" + getSources() + "]";
     }
 
@@ -413,9 +413,9 @@ public final class Shader extends NativeObject {
                 uniform.reset(); // fixes issue with re-initialization
             }
         }
-        if (storageBlocks != null) {
-            for (StorageBlock storageBlock : storageBlocks.values()) {
-                storageBlock.reset();
+        if (bufferBlocks != null) {
+            for (ShaderBufferBlock shaderBufferBlock : bufferBlocks.values()) {
+                shaderBufferBlock.reset();
             }
         }
         if (attribs != null) {

jme3-core/src/main/java/com/jme3/shader/ShaderBufferBlock.java

@@ -32,29 +32,29 @@
 package com.jme3.shader;
 
 /**
- * Implementation of shader's storage block.
+ * Implementation of shader's buffer block.
  *
  * @author JavaSaBr
  */
-public class StorageBlock extends ShaderVariable {
+public class ShaderBufferBlock extends ShaderVariable {
 
     /**
      * Current used buffer object.
      */
-    protected Object storageData;
+    protected BufferObject bufferObject;
 
     /**
-     * Set the new storage data.
+     * Set the new buffer object.
      *
-     * @param storageData the new storage data
+     * @param bufferObject the new buffer object.
      */
-    public void setStorageData(final Object storageData) {
+    public void setBufferObject(final BufferObject bufferObject) {
 
-        if (storageData == null) {
+        if (bufferObject == null) {
             throw new IllegalArgumentException("for storage block " + name + ": storageData cannot be null");
         }
 
-        this.storageData = storageData;
+        this.bufferObject = bufferObject;
 
         updateNeeded = true;
     }
@@ -87,7 +87,7 @@ public class StorageBlock extends ShaderVariable {
      *
      * @return the current storage data.
      */
-    public Object getStorageData() {
-        return storageData;
+    public BufferObject getBufferObject() {
+        return bufferObject;
     }
 }

jme3-core/src/main/java/com/jme3/system/NullRenderer.java

@@ -44,6 +44,7 @@ import com.jme3.renderer.Renderer;
 import com.jme3.renderer.Statistics;
 import com.jme3.scene.Mesh;
 import com.jme3.scene.VertexBuffer;
+import com.jme3.shader.BufferObject;
 import com.jme3.shader.Shader;
 import com.jme3.shader.Shader.ShaderSource;
 import com.jme3.shader.ShaderStorageBufferObject;
@@ -150,14 +151,14 @@ public class NullRenderer implements Renderer {
     }
 
     @Override
-    public void updateBufferData(ShaderStorageBufferObject ssbo) {
+    public void updateBufferData(BufferObject bo) {
     }
-
     public void deleteBuffer(VertexBuffer vb) {
     }
 
     @Override
-    public void deleteBuffer(ShaderStorageBufferObject ssbo) {
+    public void deleteBuffer(BufferObject bo) {
+
     }
 
     public void renderMesh(Mesh mesh, int lod, int count, VertexBuffer[] instanceData) {

jme3-core/src/test/java/com/jme3/SetupTest.java

@@ -31,6 +31,13 @@
  */
 package com.jme3;
 
+import com.jme3.material.Material;
+import com.jme3.math.ColorRGBA;
+import com.jme3.shader.BufferObject;
+import com.jme3.shader.BufferObject.Layout;
+import com.jme3.shader.BufferObjectField;
+import com.jme3.shader.UniformBufferObject;
+import com.jme3.shader.VarType;
 import org.junit.Test;
 
 /**
@@ -41,6 +48,20 @@ public class SetupTest {
     
    @Test(expected=AssertionError.class)
    public void testAssertionEnabled() {
+
+       Material material;
+
+       final UniformBufferObject ubo = new UniformBufferObject(3, Layout.std140,
+           new BufferObjectField("light_1", VarType.Vector4),
+           new BufferObjectField("light_2", VarType.Vector4),
+           new BufferObjectField("array", VarType.FloatArray)
+       );
+       ubo.setValue("light_1", ColorRGBA.Black);
+       ubo.setValue("light_2", ColorRGBA.Gray);
+       ubo.setValue("array", new float[] {1F, 2F, 3F});
+
+       material.setBufferObject("uboTest", ubo);
+
        assert false;
    }
 }

jme3-jogl/src/main/java/com/jme3/renderer/jogl/JoglGL.java

@@ -654,4 +654,9 @@ public class JoglGL implements GL, GL2, GL3, GL4 {
     public void glShaderStorageBlockBinding(final int program, final int storageBlockIndex, final int storageBlockBinding) {
         GLContext.getCurrentGL().getGL4bc().glShaderStorageBlockBinding(program, storageBlockIndex, storageBlockBinding);
     }
+
+    @Override
+    public void glUniformBlockBinding(final int program, final int uniformBlockIndex, final int uniformBlockBinding) {
+        GLContext.getCurrentGL().getGL3bc().glUniformBlockBinding(program, uniformBlockIndex, uniformBlockBinding);
+    }
 }

jme3-lwjgl/src/main/java/com/jme3/renderer/lwjgl/LwjglGL.java

@@ -509,4 +509,9 @@ public final class LwjglGL implements GL, GL2, GL3, GL4 {
     public void glBindBufferBase(final int target, final int index, final int buffer) {
         GL30.glBindBufferBase(target, index, buffer);
     }
+
+    @Override
+    public void glUniformBlockBinding(final int program, final int uniformBlockIndex, final int uniformBlockBinding) {
+        GL31.glUniformBlockBinding(program, uniformBlockIndex, uniformBlockBinding);
+    }
 }

jme3-lwjgl3/src/main/java/com/jme3/renderer/lwjgl/LwjglGL.java

@@ -641,4 +641,9 @@ public class LwjglGL extends LwjglRender implements GL, GL2, GL3, GL4 {
     public void glBindBufferBase(final int target, final int index, final int buffer) {
         GL30.glBindBufferBase(target, index, buffer);
     }
+
+    @Override
+    public void glUniformBlockBinding(final int program, final int uniformBlockIndex, final int uniformBlockBinding) {
+        GL31.glUniformBlockBinding(program, uniformBlockIndex, uniformBlockBinding);
+    }
 }