updated DomeProjection example with simplified shader use

java/examples/Topics/Shaders/DomeProjection/CubeMapUtils.pde

@@ -1,8 +1,6 @@
 void initCubeMap() {
-  gridTex = loadImage("grid.png");
   sphereDetail(50);
   domeSphere = createShape(SPHERE, height/2.0f);
-  domeSphere.setTexture(gridTex);
   domeSphere.rotateX(HALF_PI);
   domeSphere.setStroke(false);
 
@@ -42,7 +40,7 @@ void initCubeMap() {
 
   // Load cubemap shader.
   cubemapShader = loadShader("cubemapfrag.glsl", "cubemapvert.glsl");
-  cubemapShader.set("EnvMap", 1);
+  cubemapShader.set("cubemap", 1);
 }
 
 void drawCubeMap() {

java/examples/Topics/Shaders/DomeProjection/DomeProjection.pde

@@ -13,7 +13,6 @@ import java.nio.IntBuffer;
 
 PShader cubemapShader;
 PShape domeSphere;
-PImage gridTex;
 
 IntBuffer fbo;
 IntBuffer rbo;

java/examples/Topics/Shaders/DomeProjection/data/cubemapfrag.glsl

@@ -1 +1 @@
-uniform sampler2D texture;
+uniform samplerCube cubemap;

java/examples/Topics/Shaders/DomeProjection/data/cubemapvert.glsl

@@ -1 +1 @@
-#define PROCESSING_TEXTURE_SHADER
+uniform mat4 transform;