Update the examples

README.md

@@ -44,38 +44,82 @@ The kDenoise and kDenoiseStep constants in Bc7Mode.h define RDO capabilities:
 
 The constants kAlpha, kGreen, kRed, kBlue set weights for channels and depend on the nature of the data.
 
-## Example
+## Examples
 
-Recompressing "BC7Ltest.png" (gained from https://code.google.com/archive/p/nvidia-texture-tools/downloads bc7_export.zip) on i7-6700 CPU:
+Let's try the soup from https://cbloomrants.blogspot.com/2020/06/oodle-texture-sample-run.html on an i7-7800X CPU with AVX-512 enabled:
 
-    Bc7Compress.exe /nomask /noflip BC7Ltest.png output.ktx /debug output.png
-    Loaded BC7Ltest.png
+  A precise compression with kDenoise = 0, kDenoiseStep = 0
+
+    Bc7Compress.exe /nomask /noflip mysoup1024.png mysoup1024-precise.ktx /debug mysoup1024-precise.png
+      Image 1024x1024, Texture 1024x1024
+        Compressed 65536 blocks, elapsed 1396 ms, throughput 0.751 Mpx/s
+          Whole A
+          SubTexture RGB qMSE = 1.6, qPSNR = 46.144434, wSSIM_4x4 = 0.99468383
+
+    dssim-1.13.exe mysoup1024.png mysoup1024-precise.png
+      0.00011307      mysoup1024-precise.png
+
+    mysoup1024-precise.7z  973 652
+
+  Standard BC7 modes separated by error stepping kDenoise = 1, kDenoiseStep = 3 \* 3:
+
+    Bc7Compress.exe /nomask /noflip mysoup1024.png mysoup1024-stepping.ktx /debug mysoup1024-stepping.png
+      Image 1024x1024, Texture 1024x1024
+        Compressed 65536 blocks, elapsed 380 ms, throughput 2.759 Mpx/s
+          Whole A
+          SubTexture RGB qMSE = 1.6, qPSNR = 46.097026, wSSIM_4x4 = 0.99034363
+
+    dssim-1.13.exe mysoup1024.png mysoup1024-stepping.png
+      0.00023433      mysoup1024-stepping.png
+
+    mysoup1024-stepping.7z  840 465
+
+  Using additional RDO Mode6Index2 (Bc7Core.cpp, Mode6Index2::CompressBlockFast(input)):
+
+    Bc7Compress.exe /nomask /noflip mysoup1024.png mysoup1024-mode6index2.ktx /debug mysoup1024-mode6index2.png
+      Image 1024x1024, Texture 1024x1024
+        Compressed 65536 blocks, elapsed 386 ms, throughput 2.716 Mpx/s
+          Whole A
+          SubTexture RGB qMSE = 2.1, qPSNR = 44.949510, wSSIM_4x4 = 0.98476649
+
+    dssim-1.13.exe mysoup1024.png mysoup1024-mode6index2.png
+      0.00045838      mysoup1024-mode6index2.png
+
+    mysoup1024-mode6index2.7z  651 851
+
+Then check all modes with BC7Ltest.png from https://code.google.com/archive/p/nvidia-texture-tools/downloads bc7_export.zip:
+
+    Bc7Compress.exe /nomask /noflip BC7Ltest.png BC7Ltest.ktx /debug output.png
       Image 152x152, Texture 152x152
-        Compressed 1444 blocks, elapsed 11 ms, throughput 2.100 Mpx/s
-          SubTexture A qMSE = 0.0, qPSNR = 69.026097, SSIM_4x4 = 0.99997870
-          SubTexture RGB qMSE = 0.6, qPSNR = 50.685068, wSSIM_4x4 = 0.99964057
-        Saved output.ktx
-      Saved output.png
+        Compressed 1444 blocks, elapsed 24 ms, throughput 0.962 Mpx/s
+          SubTexture A qMSE = 0.0, qPSNR = 69.026097, SSIM_4x4 = 0.99997865
+          SubTexture RGB qMSE = 0.6, qPSNR = 50.687018, wSSIM_4x4 = 0.99964438
+
+    dssim-1.13.exe BC7Ltest.png output.png
+      0.00003303      output.png
 
-Compressing "frymire.png" (gained from https://github.com/castano/nvidia-texture-tools/blob/master/data/testsuite/waterloo/frymire.png):
+And finally compress an interesting image https://github.com/castano/image-datasets/blob/master/waterloo/frymire.png:
 
-    Bc7Compress.exe /nomask /noflip frymire.png frymire.ktx
-    Loaded frymire.png
+    Bc7Compress.exe /nomask /noflip frymire.png frymire.ktx /debug output.png
       Image 1118x1105, Texture 1120x1108
-        Compressed 77560 blocks, elapsed 77 ms, throughput 16.116 Mpx/s
+        Compressed 77560 blocks, elapsed 73 ms, throughput 16.999 Mpx/s
           Whole A
-          SubTexture RGB qMSE = 0.5, qPSNR = 50.950326, wSSIM_4x4 = 0.97143024
-        Saved frymire.ktx
+          SubTexture RGB qMSE = 0.6, qPSNR = 50.594453, wSSIM_4x4 = 0.97119160
+
+    frymire.7z  313 550
 
-Compressing "8192.png" (gained from removed https://bitbucket.org/wolfpld/etcpak/downloads/8192.png) in development mode:
+For non-production purposes we can apply a "draft" mode on earlily saved https://bitbucket.org/wolfpld/etcpak/downloads/8192.png:
 
-    Bc7Compress.exe /draft /nomask /noflip 8192.png 8192.ktx
-    Loaded 8192.png
+    Bc7Compress.exe /draft /nomask /noflip 8192.png 8192.ktx /debug output.png
       Image 8192x8192, Texture 8192x8192
-        Compressed 4194304 blocks, elapsed 529 ms, throughput 126.859 Mpx/s
+        Compressed 4194304 blocks, elapsed 295 ms, throughput 227.487 Mpx/s
           Whole A
-          SubTexture RGB qMSE = 0.1, qPSNR = 56.778563, wSSIM_4x4 = 0.99534311
-        Saved 8192.ktx
+          SubTexture RGB qMSE = 0.9, qPSNR = 48.734921, wSSIM_4x4 = 0.98443459
+
+    dssim-1.13.exe 8192.png output.png
+      0.00085877      output.png
+
+    8192.7z  31 309 975
 
 ## Copyright