diff --git a/src/nodes/base.js b/src/nodes/base.js
index 8f113bde9..a39eedb67 100755
--- a/src/nodes/base.js
+++ b/src/nodes/base.js
@@ -773,8 +773,8 @@
 
     NodeScript.prototype.compileCode = function(code) {
         this._func = null;
-        if (code.length > 100) {
-            console.warn("Script too long, max 100 chars");
+        if (code.length > 256) {
+            console.warn("Script too long, max 256 chars");
         } else {
             var code_low = code.toLowerCase();
             var forbidden_words = [
diff --git a/src/nodes/gltextures.js b/src/nodes/gltextures.js
index 3f216ee60..5424e6909 100755
--- a/src/nodes/gltextures.js
+++ b/src/nodes/gltextures.js
@@ -601,7 +601,8 @@
                     shader = new GL.Shader( Shader.SCREEN_VERTEX_SHADER, final_pixel_code );
                     this.boxcolor = "#00FF00";
                 } catch (err) {
-                    console.log("Error compiling shader: ", err, final_pixel_code );
+                    //console.log("Error compiling shader: ", err, final_pixel_code );
+					GL.Shader.dumpErrorToConsole(err,Shader.SCREEN_VERTEX_SHADER, final_pixel_code);
                     this.boxcolor = "#FF0000";
 					this.has_error = true;
                     return;
@@ -610,6 +611,9 @@
                 this._shader_code = uvcode + "|" + pixelcode;
             }
 
+			if(!this._shader)
+				return;
+
             var value = this.getInputData(2);
             if (value != null) {
                 this.properties.value = value;
@@ -676,14 +680,16 @@
             this.addOutput("out", "Texture");
             this.properties = {
                 code: "",
+				u_value: 1,
+				u_color: [1,1,1,1],
                 width: 512,
                 height: 512,
                 precision: LGraphTexture.DEFAULT
             };
 
             this.properties.code =
-                "\nvoid main() {\n  vec2 uv = v_coord;\n  vec3 color = vec3(0.0);\n//your code here\n\ngl_FragColor = vec4(color, 1.0);\n}\n";
-            this._uniforms = { in_texture: 0, texSize: vec2.create(), time: 0 };
+                "//time: time in seconds\n//texSize: vec2 with res\nuniform float u_value;\nuniform vec4 u_color;\n\nvoid main() {\n  vec2 uv = v_coord;\n  vec3 color = vec3(0.0);\n	//your code here\n	color.xy=uv;\n\ngl_FragColor = vec4(color, 1.0);\n}\n";
+            this._uniforms = { u_value: 1, u_color: vec4.create(), in_texture: 0, texSize: vec2.create(), time: 0 };
         }
 
         LGraphTextureShader.title = "Shader";
@@ -819,6 +825,7 @@
             var in_tex = null;
 
             //set uniforms
+			if(this.inputs)
             for (var i = 0; i < this.inputs.length; ++i) {
                 var info = this.getInputInfo(i);
                 var data = this.getInputData(i);
@@ -855,18 +862,11 @@
             uniforms.texSize[0] = w;
             uniforms.texSize[1] = h;
             uniforms.time = this.graph.getTime();
+			uniforms.u_value = this.properties.u_value;
+			uniforms.u_color.set( this.properties.u_color );
 
-            if (
-                !this._tex ||
-                this._tex.type != type ||
-                this._tex.width != w ||
-                this._tex.height != h
-            ) {
-                this._tex = new GL.Texture(w, h, {
-                    type: type,
-                    format: gl.RGBA,
-                    filter: gl.LINEAR
-                });
+            if ( !this._tex || this._tex.type != type ||  this._tex.width != w || this._tex.height != h ) {
+                this._tex = new GL.Texture(w, h, {  type: type, format: gl.RGBA, filter: gl.LINEAR });
             }
             var tex = this._tex;
             tex.drawTo(function() {