Tests: convert BillboardTextureCoords VTest to Unit Test

Author: paroj

Tests/OgreMain/src/General.cpp

@@ -54,6 +54,9 @@ THE SOFTWARE.
 
 #include "OgreKeyFrame.h"
 
+#include "OgreBillboardSet.h"
+#include "OgreBillboard.h"
+
 #include <random>
 using std::minstd_rand;
 
@@ -659,3 +662,37 @@ TEST(GpuProgramParams, Variability)
 
     EXPECT_EQ(params.getConstantDefinition("parameter").variability, GPV_PER_OBJECT);
 }
+
+TEST(Billboard, TextureCoords)
+{
+    Root root("");
+    MaterialManager::getSingleton().initialise();
+
+    float xsegs = 3;
+    float ysegs = 3;
+    BillboardSet bbs("name");
+    bbs.setTextureStacksAndSlices(ysegs, xsegs);
+
+    auto& texcoords = bbs.getTextureCoords();
+
+
+    float width = 300;
+    float height = 300;
+    float gap = 20;
+
+    for (int y = 0; y < ysegs; ++y)
+    {
+        for (int x = 0; x < xsegs; ++x)
+        {
+            FloatRect ref((x + 0) / xsegs, (ysegs - y - 1) / ysegs, // uv
+                          (x + 1) / xsegs, (ysegs - y - 0) / ysegs);
+            auto& genRect = texcoords[(ysegs - y - 1)*xsegs + x];
+            EXPECT_EQ(genRect, ref);
+
+            // only for visualisation
+            Billboard* bb = bbs.createBillboard({(x * width / xsegs) + ((x - 1) * gap), // position
+                                                 (y * height / ysegs) + ((y - 1) * gap), 0});
+            bb->setTexcoordIndex((ysegs - y - 1)*xsegs + x);
+        }
+    }
+}

Tests/VisualTests/PlayPen/include/PlayPenTests.h

@@ -636,20 +636,6 @@ class _OgreSampleClassExport PlayPen_ReloadResources : public VisualTest
 
 };
 
-//------------------------------------------------------------------------------
-/** Tests billboard texture coordinates */
-class _OgreSampleClassExport PlayPen_BillboardTextureCoords : public VisualTest
-{
-public:
-
-    PlayPen_BillboardTextureCoords();
-
-protected:
-
-    void setupContent() override;
-
-};
-
 //------------------------------------------------------------------------------
 /** Tests particles with an RTT reflection */
 class _OgreSampleClassExport PlayPen_ReflectedBillboards : public VisualTest

Tests/VisualTests/PlayPen/src/PlayPenTestPlugin.cpp

@@ -45,7 +45,6 @@ PlaypenTestPlugin::PlaypenTestPlugin()
     addSample(new PlayPen_BillboardAccurateFacing()); // blocks are not lit (no darkness)
     addSample(new PlayPen_BillboardChain());
     addSample(new PlayPen_BillboardOrigins());
-    addSample(new PlayPen_BillboardTextureCoords());
     addSample(new PlayPen_BillboardText());
     addSample(new PlayPen_BlendDiffuseColour());
     addSample(new PlayPen_BlitSubTextures()); // center tex missing

Tests/VisualTests/PlayPen/src/PlayPenTests.cpp

@@ -1633,60 +1633,6 @@ void PlayPen_BillboardOrigins::setupContent()
 //----------------------------------------------------------------------------
 //----------------------------------------------------------------------------
 
-PlayPen_BillboardTextureCoords::PlayPen_BillboardTextureCoords()
-{
-    mInfo["Title"] = "PlayPen_BillboardTextureCoords";
-    mInfo["Description"] = "Tests setting billboard texture coordinates.";
-    addScreenshotFrame(10);
-}
-//----------------------------------------------------------------------------
-
-void PlayPen_BillboardTextureCoords::setupContent()
-{
-    mSceneMgr->setAmbientLight(ColourValue::White);
-
-    BillboardSet* bbs = mSceneMgr->createBillboardSet("test");
-    BillboardSet* bbs2 = mSceneMgr->createBillboardSet("test2");
-    float xsegs = 3;
-    float ysegs = 3;
-    float width = 300;
-    float height = 300;
-    float gap = 20;
-
-    // set up texture coords
-    bbs->setTextureStacksAndSlices(ysegs, xsegs);
-    bbs->setDefaultDimensions(width/xsegs, height/xsegs);
-    bbs2->setDefaultDimensions(width/xsegs, height/xsegs);
-
-    for (int y = 0; y < ysegs; ++y)
-    {
-        for (int x = 0; x < xsegs; ++x)
-        {
-            Vector3 midPoint;
-            midPoint.x = (x * width / xsegs) + ((x-1) * gap);
-            midPoint.y = (y * height / ysegs) + ((y-1) * gap);
-            midPoint.z = 0;
-            Billboard* bb = bbs->createBillboard(midPoint);
-            bb->setTexcoordIndex((ysegs - y - 1)*xsegs + x);
-            Billboard* bb2 = bbs2->createBillboard(midPoint);
-            bb2->setTexcoordRect(
-                FloatRect((x + 0) / xsegs, (ysegs - y - 1) / ysegs,
-                          (x + 1) / xsegs, (ysegs - y - 0) / ysegs));
-        }
-    }
-
-    bbs->setMaterialName("Examples/OgreLogo");
-    bbs2->setMaterialName("Examples/OgreLogo");
-    mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(bbs);
-    mSceneMgr->getRootSceneNode()
-        ->createChildSceneNode(Vector3(- (width + xsegs * gap), 0, 0))
-        ->attachObject(bbs2);
-
-    mCameraNode->setPosition(-100,150,900);
-}
-//----------------------------------------------------------------------------
-//----------------------------------------------------------------------------
-
 PlayPen_BlendDiffuseColour::PlayPen_BlendDiffuseColour()
 {
     mInfo["Title"] = "PlayPen_BlendDiffuseColour";