bin.5

Signed-off-by: Cary Phillips <cary@ilm.com>

Author: cary-ilm

.github/workflows/website.yml

@@ -46,7 +46,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-latest, windows-latest]
 
     env:
       # doxygen 1.10 causes sphinx to fail, so pin to 1.9 for now.

README.md

@@ -69,13 +69,13 @@ complete details, but to get started, the "Hello, world" [`exrwriter.cpp`](https
     main()
     {
         try {
-            int width =  500;
-            int height = 250;
+            int width =  50;
+            int height = 25;
             
             Imf::Array2D<Imf::Rgba> pixels(height, width);
             for (int y=0; y<height; y++)
             {
-                float c = (y/10 % 2 == 0) ? 1.0 : 0.0;
+                float c = (y/5 % 2 == 0) ? 1.0 : 0.0;
                 for (int x=0; x<width; x++)
                     pixels[y][x] = Imf::Rgba(c,c,c);
             }
@@ -90,8 +90,8 @@ complete details, but to get started, the "Hello, world" [`exrwriter.cpp`](https
         return 0;
     }
 
-This creates an image 500 pixels wide and 250 pixels high with
-horizontal stripes 10 pixels high:
+This creates an image 50 pixels wide and 25 pixels high with
+horizontal stripes 5 pixels high:
 
 ![stripes](website/images/stripes.png)
 

website/HelloWorld.rst

@@ -15,12 +15,18 @@ Write an Image
 ==============
 
 This example :download:`exrwriter.cpp <src/exrwriter/exrwriter.cpp>`
-program writes a simple ``hello.exr`` file of an image of 10x10 pixels with
-values that are a ramp in green and blue:
+program writes a simple image ``stripes.exr``:
 
 .. literalinclude:: src/exrwriter/exrwriter.cpp
 
-And the :download:`CMakeLists.txt <src/exrwriter/CMakeLists.txt>` file to build:
+This creates an image 50 pixels wide and 25 pixels high with
+horizontal stripes 5 pixels high:
+
+.. image:: images/stripes.png
+   :align: center           
+
+The :download:`CMakeLists.txt <src/exrwriter/CMakeLists.txt>` file to
+build is:
 
 .. literalinclude:: src/exrwriter/CMakeLists.txt
 

website/src/exrwriter/exrwriter.cpp

@@ -5,23 +5,23 @@
 int
 main()
 {
-    int width =  500;
-    int height = 250;
+    int width =  50;
+    int height = 25;
 
     Imf::Array2D<Imf::Rgba> pixels(height, width);
     for (int y=0; y<height; y++)
     {
-        float c = (y/10 % 2 == 0) ? 1.0 : 0.0;
+        float c = (y/5 % 2 == 0) ? 1.0 : 0.0;
         for (int x=0; x<width; x++)
             pixels[y][x] = Imf::Rgba(c,c,c);
     }
 
     try {
-        Imf::RgbaOutputFile file ("hello.exr", width, height, Imf::WRITE_RGBA);
+        Imf::RgbaOutputFile file ("stripes.exr", width, height, Imf::WRITE_RGBA);
         file.setFrameBuffer (&pixels[0][0], 1, width);
         file.writePixels (height);
     } catch (const std::exception &e) {
-        std::cerr << "error writing image file hello.exr:" << e.what() << std::endl;
+        std::cerr << "error writing image file stripes.exr:" << e.what() << std::endl;
         return 1;
     }
     return 0;