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 EnvMap;
varying vec3 reflectDir;

uniform vec2 texOffset;

varying vec4 vertColor;
varying vec4 vertTexCoord;

void main() {
//  gl_FragColor = texture2D(texture, vertTexCoord.st) * vertColor;
  
  vec3 envColor = vec3(textureCube(EnvMap, reflectDir));
  gl_FragColor = vec4(envColor, 1.0);
      
}


/*


void main() {
  // Look up environment map value in cube map
  vec3 envColor = vec3(textureCube(EnvMap, ReflectDir));
  gl_FragColor = vec4(envColor, 1.0);  
}
*/
+uniform samplerCube cubemap;
varying vec3 reflectDir;

void main() {
  vec3 color = vec3(textureCube(cubemap, reflectDir));
  gl_FragColor = vec4(color, 1.0);      
}

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

@@ -1 +1 @@
-#define PROCESSING_TEXTURE_SHADER

uniform mat4 transform;
uniform mat4 modelview;
uniform mat4 texMatrix;

attribute vec4 vertex;
attribute vec4 color;
attribute vec2 texCoord;
attribute vec3 normal;

varying vec4 vertColor;
varying vec4 vertTexCoord;

uniform mat3 normalMatrix;

varying vec3 reflectDir;

void main() {
  gl_Position = transform * vertex;
    
  vec3 ecNormal = normalize(normalMatrix * normal); // Vertex in eye coordinates
  vec3 ecVertex = vec3(modelview * vertex); // Normal vector in eye coordinates
  vec3 eyeDir = ecVertex.xyz;
  reflectDir = reflect(eyeDir, ecNormal);    
    
  vertColor = color;
  vertTexCoord = texMatrix * vec4(texCoord, 1.0, 1.0);
}



/*
varying vec3 ReflectDir;

void main() {
  gl_Position = ftransform();
  vec3 normal = normalize(gl_NormalMatrix * gl_Normal);
  vec4 pos = gl_ModelViewMatrix * gl_Vertex;
  vec3 eyeDir = pos.xyz;
  ReflectDir = reflect(eyeDir, normal);
}
*/
+uniform mat4 transform;
uniform mat4 modelview;
uniform mat3 normalMatrix;

attribute vec4 vertex;
attribute vec3 normal;

varying vec3 reflectDir;

void main() {
  gl_Position = transform * vertex;
    
  vec3 ecNormal = normalize(normalMatrix * normal); // Vertex in eye coordinates
  vec3 ecVertex = vec3(modelview * vertex); // Normal vector in eye coordinates
  vec3 eyeDir = ecVertex.xyz;
  reflectDir = reflect(eyeDir, ecNormal);
}