diff --git a/core/src/processing/opengl/ColorFrag.glsl b/core/src/processing/opengl/ColorFrag.glsl
index d5d23ae22..5ab649aec 100644
--- a/core/src/processing/opengl/ColorFrag.glsl
+++ b/core/src/processing/opengl/ColorFrag.glsl
@@ -23,8 +23,8 @@ precision mediump float;
 precision mediump int;
 #endif
 
-varying vec4 vertColor;
+varying vec4 varColor;
 
 void main() {
-  gl_FragColor = vertColor;
+  gl_FragColor = varColor;
 }
\ No newline at end of file
diff --git a/core/src/processing/opengl/ColorVert.glsl b/core/src/processing/opengl/ColorVert.glsl
index 5a03b41a0..d43d40549 100644
--- a/core/src/processing/opengl/ColorVert.glsl
+++ b/core/src/processing/opengl/ColorVert.glsl
@@ -20,15 +20,15 @@
 
 #define PROCESSING_COLOR_SHADER
 
-uniform mat4 transform;
+uniform mat4 transformMatrix;
 
-attribute vec4 vertex;
+attribute vec4 position;
 attribute vec4 color;
 
-varying vec4 vertColor;
+varying vec4 varColor;
 
 void main() {
-  gl_Position = transform * vertex;
+  gl_Position = transformMatrix * position;
     
-  vertColor = color;
+  varColor = color;
 }
\ No newline at end of file
diff --git a/core/src/processing/opengl/LightVert.glsl b/core/src/processing/opengl/LightVert.glsl
index 6e5829fe2..cfdcc44e0 100644
--- a/core/src/processing/opengl/LightVert.glsl
+++ b/core/src/processing/opengl/LightVert.glsl
@@ -20,8 +20,8 @@
 
 #define PROCESSING_LIGHT_SHADER
 
-uniform mat4 modelview;
-uniform mat4 transform;
+uniform mat4 modelviewMatrix;
+uniform mat4 transformMatrix;
 uniform mat3 normalMatrix;
 
 uniform int lightCount;
@@ -33,7 +33,7 @@ uniform vec3 lightSpecular[8];
 uniform vec3 lightFalloff[8];
 uniform vec2 lightSpot[8];
 
-attribute vec4 vertex;
+attribute vec4 position;
 attribute vec4 color;
 attribute vec3 normal;
 
@@ -42,7 +42,7 @@ attribute vec4 specular;
 attribute vec4 emissive;
 attribute float shininess;
 
-varying vec4 vertColor;
+varying vec4 varColor;
 
 const float zero_float = 0.0;
 const float one_float = 1.0;
@@ -75,10 +75,10 @@ float blinnPhongFactor(vec3 lightDir, vec3 vertPos, vec3 vecNormal, float shine)
 
 void main() {
   // Vertex in clip coordinates
-  gl_Position = transform * vertex;
+  gl_Position = transformMatrix * position;
     
   // Vertex in eye coordinates
-  vec3 ecVertex = vec3(modelview * vertex);
+  vec3 ecVertex = vec3(modelviewMatrix * position);
   
   // Normal vector in eye coordinates
   vec3 ecNormal = normalize(normalMatrix * normal);
@@ -134,8 +134,8 @@ void main() {
 
   // Calculating final color as result of all lights (plus emissive term).
   // Transparency is determined exclusively by the diffuse component.
-  vertColor = vec4(totalAmbient, 0) * ambient + 
-              vec4(totalDiffuse, 1) * color + 
-              vec4(totalSpecular, 0) * specular + 
-              vec4(emissive.rgb, 0);              
+  varColor = vec4(totalAmbient, 0) * ambient + 
+             vec4(totalDiffuse, 1) * color + 
+             vec4(totalSpecular, 0) * specular + 
+             vec4(emissive.rgb, 0);              
 }
\ No newline at end of file
diff --git a/core/src/processing/opengl/LineFrag.glsl b/core/src/processing/opengl/LineFrag.glsl
index dc08a3fa2..8ce920e33 100644
--- a/core/src/processing/opengl/LineFrag.glsl
+++ b/core/src/processing/opengl/LineFrag.glsl
@@ -23,8 +23,8 @@ precision mediump float;
 precision mediump int;
 #endif
 
-varying vec4 vertColor;
+varying vec4 varColor;
 
 void main() {
-  gl_FragColor = vertColor;
+  gl_FragColor = varColor;
 }
\ No newline at end of file
diff --git a/core/src/processing/opengl/LineVert.glsl b/core/src/processing/opengl/LineVert.glsl
index 52f334b28..37687845a 100644
--- a/core/src/processing/opengl/LineVert.glsl
+++ b/core/src/processing/opengl/LineVert.glsl
@@ -20,18 +20,18 @@
 
 #define PROCESSING_LINE_SHADER
 
-uniform mat4 modelview;
-uniform mat4 projection;
+uniform mat4 modelviewMatrix;
+uniform mat4 projectionMatrix;
 
 uniform vec4 viewport;
 uniform int perspective;
 uniform vec3 scale;
 
-attribute vec4 vertex;
+attribute vec4 position;
 attribute vec4 color;
 attribute vec4 direction;
 
-varying vec4 vertColor;
+varying vec4 varColor;
 
 vec3 clipToWindow(vec4 clip, vec4 viewport) {
   vec3 post_div = clip.xyz / clip.w;
@@ -45,20 +45,20 @@ vec4 windowToClipVector(vec2 window, vec4 viewport, float clip_w) {
 }  
   
 void main() {
-  vec4 posp = modelview * vertex;
+  vec4 posp = modelviewMatrix * position;
     
   // Moving vertices slightly toward the camera
   // to avoid depth-fighting with the fill triangles.
   // Discussed here:
   // http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=252848  
   posp.xyz = posp.xyz * scale;
-  vec4 clipp = projection * posp;
+  vec4 clipp = projectionMatrix * posp;
   float thickness = direction.w;
   
   if (thickness != 0.0) {  
-    vec4 posq = posp + modelview * vec4(direction.xyz, 0);
+    vec4 posq = posp + modelviewMatrix * vec4(direction.xyz, 0);
     posq.xyz = posq.xyz * scale;  
-    vec4 clipq = projection * posq; 
+    vec4 clipq = projectionMatrix * posq; 
   
     vec3 window_p = clipToWindow(clipp, viewport); 
     vec3 window_q = clipToWindow(clipq, viewport); 
@@ -81,5 +81,5 @@ void main() {
     gl_Position = clipp;
   }
   
-  vertColor = color;
+  varColor = color;
 }
diff --git a/core/src/processing/opengl/MaskFrag.glsl b/core/src/processing/opengl/MaskFrag.glsl
index 508a39649..4b517e3a0 100644
--- a/core/src/processing/opengl/MaskFrag.glsl
+++ b/core/src/processing/opengl/MaskFrag.glsl
@@ -28,11 +28,11 @@ precision mediump int;
 uniform sampler2D texture;
 uniform sampler2D mask;
 
-varying vec4 vertTexCoord;
+varying vec4 varTexCoord;
 
 void main() {
-  vec3 texColor = texture2D(texture, vertTexCoord.st).rgb;
-  vec3 maskColor = texture2D(mask, vertTexCoord.st).rgb;
+  vec3 texColor = texture2D(texture, varTexCoord.st).rgb;
+  vec3 maskColor = texture2D(mask, varTexCoord.st).rgb;
   float luminance = dot(maskColor, vec3(0.2126, 0.7152, 0.0722));
   gl_FragColor = vec4(texColor, luminance);  
 }
\ No newline at end of file
diff --git a/core/src/processing/opengl/PGraphicsOpenGL.java b/core/src/processing/opengl/PGraphicsOpenGL.java
index ccaa95534..0623ba3c8 100644
--- a/core/src/processing/opengl/PGraphicsOpenGL.java
+++ b/core/src/processing/opengl/PGraphicsOpenGL.java
@@ -7180,6 +7180,8 @@ public class PGraphicsOpenGL extends PGraphics {
     @Override
     public void loadAttributes() {
       vertexLoc = getAttributeLoc("vertex");
+      if (vertexLoc == -1) vertexLoc = getAttributeLoc("position");
+
       colorLoc = getAttributeLoc("color");
       texCoordLoc = getAttributeLoc("texCoord");
       normalLoc = getAttributeLoc("normal");
@@ -7401,6 +7403,8 @@ public class PGraphicsOpenGL extends PGraphics {
     @Override
     public void loadAttributes() {
       vertexLoc = getAttributeLoc("vertex");
+      if (vertexLoc == -1) vertexLoc = getAttributeLoc("position");
+
       colorLoc = getAttributeLoc("color");
       directionLoc = getAttributeLoc("direction");
     }
@@ -7499,6 +7503,8 @@ public class PGraphicsOpenGL extends PGraphics {
     @Override
     public void loadAttributes() {
       vertexLoc = getAttributeLoc("vertex");
+      if (vertexLoc == -1) vertexLoc = getAttributeLoc("position");
+
       colorLoc = getAttributeLoc("color");
       offsetLoc = getAttributeLoc("offset");
     }
diff --git a/core/src/processing/opengl/PointFrag.glsl b/core/src/processing/opengl/PointFrag.glsl
index d5d23ae22..5ab649aec 100644
--- a/core/src/processing/opengl/PointFrag.glsl
+++ b/core/src/processing/opengl/PointFrag.glsl
@@ -23,8 +23,8 @@ precision mediump float;
 precision mediump int;
 #endif
 
-varying vec4 vertColor;
+varying vec4 varColor;
 
 void main() {
-  gl_FragColor = vertColor;
+  gl_FragColor = varColor;
 }
\ No newline at end of file
diff --git a/core/src/processing/opengl/PointVert.glsl b/core/src/processing/opengl/PointVert.glsl
index 7523e3326..542efaa67 100644
--- a/core/src/processing/opengl/PointVert.glsl
+++ b/core/src/processing/opengl/PointVert.glsl
@@ -20,17 +20,17 @@
 
 #define PROCESSING_POINT_SHADER
 
-uniform mat4 projection;
-uniform mat4 modelview;
+uniform mat4 projectionMatrix;
+uniform mat4 modelviewMatrix;
  
 uniform vec4 viewport;
 uniform int perspective; 
  
-attribute vec4 vertex;
+attribute vec4 position;
 attribute vec4 color;
 attribute vec2 offset;
 
-varying vec4 vertColor;
+varying vec4 varColor;
 
 vec4 windowToClipVector(vec2 window, vec4 viewport, float clipw) {
   vec2 xypos = (window / viewport.zw) * 2.0;
@@ -38,18 +38,18 @@ vec4 windowToClipVector(vec2 window, vec4 viewport, float clipw) {
 }  
 
 void main() {
-  vec4 pos = modelview * vertex;
-  vec4 clip = projection * pos;
+  vec4 pos = modelviewMatrix * position;
+  vec4 clip = projectionMatrix * pos;
   
   if (0 < perspective) {
     // Perspective correction (points will look thiner as they move away 
     // from the view position).
-    gl_Position = clip + projection * vec4(offset.xy, 0, 0);
+    gl_Position = clip + projectionMatrix * vec4(offset.xy, 0, 0);
   } else {
     // No perspective correction.	
     vec4 offset = windowToClipVector(offset.xy, viewport, clip.w);
     gl_Position = clip + offset;
   }
   
-  vertColor = color;
+  varColor = color;
 }
\ No newline at end of file
diff --git a/core/src/processing/opengl/TexlightVert.glsl b/core/src/processing/opengl/TexlightVert.glsl
index ff981c59c..620d50c70 100644
--- a/core/src/processing/opengl/TexlightVert.glsl
+++ b/core/src/processing/opengl/TexlightVert.glsl
@@ -20,8 +20,8 @@
 
 #define PROCESSING_TEXLIGHT_SHADER
 
-uniform mat4 modelview;
-uniform mat4 transform;
+uniform mat4 modelviewMatrix;
+uniform mat4 transformMatrix;
 uniform mat3 normalMatrix;
 uniform mat4 texMatrix;
 
@@ -34,7 +34,7 @@ uniform vec3 lightSpecular[8];
 uniform vec3 lightFalloff[8];
 uniform vec2 lightSpot[8];
 
-attribute vec4 vertex;
+attribute vec4 position;
 attribute vec4 color;
 attribute vec3 normal;
 attribute vec2 texCoord;
@@ -44,8 +44,8 @@ attribute vec4 specular;
 attribute vec4 emissive;
 attribute float shininess;
 
-varying vec4 vertColor;
-varying vec4 vertTexCoord;
+varying vec4 varColor;
+varying vec4 varTexCoord;
 
 const float zero_float = 0.0;
 const float one_float = 1.0;
@@ -78,10 +78,10 @@ float blinnPhongFactor(vec3 lightDir, vec3 vertPos, vec3 vecNormal, float shine)
 
 void main() {
   // Vertex in clip coordinates
-  gl_Position = transform * vertex;
+  gl_Position = transformMatrix * position;
     
   // Vertex in eye coordinates
-  vec3 ecVertex = vec3(modelview * vertex);
+  vec3 ecVertex = vec3(modelviewMatrix * position);
   
   // Normal vector in eye coordinates
   vec3 ecNormal = normalize(normalMatrix * normal);
@@ -137,11 +137,11 @@ void main() {
   
   // Calculating final color as result of all lights (plus emissive term).
   // Transparency is determined exclusively by the diffuse component.
-  vertColor = vec4(totalAmbient, 0) * ambient + 
-              vec4(totalDiffuse, 1) * color + 
-              vec4(totalSpecular, 0) * specular + 
-              vec4(emissive.rgb, 0); 
+  varColor = vec4(totalAmbient, 0) * ambient + 
+             vec4(totalDiffuse, 1) * color + 
+             vec4(totalSpecular, 0) * specular + 
+             vec4(emissive.rgb, 0); 
               
   // Calculating texture coordinates, with r and q set both to one
-  vertTexCoord = texMatrix * vec4(texCoord, 1.0, 1.0);        
+  varTexCoord = texMatrix * vec4(texCoord, 1.0, 1.0);        
 }
diff --git a/core/src/processing/opengl/TextureFrag.glsl b/core/src/processing/opengl/TextureFrag.glsl
index f041e61d1..dc3bcbe7e 100644
--- a/core/src/processing/opengl/TextureFrag.glsl
+++ b/core/src/processing/opengl/TextureFrag.glsl
@@ -27,9 +27,9 @@ uniform sampler2D texture;
 
 uniform vec2 texOffset;
 
-varying vec4 vertColor;
-varying vec4 vertTexCoord;
+varying vec4 varColor;
+varying vec4 varTexCoord;
 
 void main() {
-  gl_FragColor = texture2D(texture, vertTexCoord.st) * vertColor;
+  gl_FragColor = texture2D(texture, varTexCoord.st) * varColor;
 }
\ No newline at end of file
diff --git a/core/src/processing/opengl/TextureVert.glsl b/core/src/processing/opengl/TextureVert.glsl
index 5260321fb..e52789316 100644
--- a/core/src/processing/opengl/TextureVert.glsl
+++ b/core/src/processing/opengl/TextureVert.glsl
@@ -20,19 +20,19 @@
 
 #define PROCESSING_TEXTURE_SHADER
 
-uniform mat4 transform;
+uniform mat4 transformMatrix;
 uniform mat4 texMatrix;
 
-attribute vec4 vertex;
+attribute vec4 position;
 attribute vec4 color;
 attribute vec2 texCoord;
 
-varying vec4 vertColor;
-varying vec4 vertTexCoord;
+varying vec4 varColor;
+varying vec4 varTexCoord;
 
 void main() {
-  gl_Position = transform * vertex;
+  gl_Position = transformMatrix * position;
     
-  vertColor = color;
-  vertTexCoord = texMatrix * vec4(texCoord, 1.0, 1.0);
+  varColor = color;
+  varTexCoord = texMatrix * vec4(texCoord, 1.0, 1.0);
 }
\ No newline at end of file