feat: more comprehensive cube face uv glsl tests

bhouston · Jul 24, 2020 · aeafe52 · aeafe52
1 parent 726fbae
commit aeafe52
Showing 1 changed file with 34 additions and 8 deletions.
diff --git a/src/lib/shaders/includes/cubemaps/cubeFaces.test.glsl b/src/lib/shaders/includes/cubemaps/cubeFaces.test.glsl
@@ -8,18 +8,44 @@ void testDirectionToCubeFaceUV( inout TestSuite suite, in int testId, in vec3 di
   assert( suite, testId, face2 == face );
   assert( suite, testId+1, eqAbs( uv, uv2, 0.00001 ) );
 
-  vec3 dir3 = cubeFaceUVToDirection( face2, uv2 );
-  assert( suite, testId+5, eqAbs( dir, dir3, 0.0001) );
+  vec3 dir2 = cubeFaceUVToDirection( face2, uv2 );
+  assert( suite, testId+5, eqAbs( dir, dir2, 0.0001) );
 
 }
 
+void testEquivalency( inout TestSuite suite, in int testId, in vec3 dir ) {
+  int face2;
+  vec2 uv2;
+  directionToCubeFaceUV( dir, face2, uv2 );
+  vec3 dir2 = cubeFaceUVToDirection( face2, uv2 );
+  assert( suite, testId, eqAbs( dir, dir2, 0.0001) );
+}
+
+void testEquivalencySet(  inout TestSuite suite, in int testId, in vec3 dir ) {
+  testEquivalency( suite, testId + 0, normalize( dir + vec3( 0.25, 0.25, 0.25 ) ) );
+  testEquivalency( suite, testId + 1, normalize( dir + vec3( 0.25, 0.25, -0.25 ) ) );
+  testEquivalency( suite, testId + 2, normalize( dir + vec3( 0.25, -0.25, 0.25 ) ) );
+  testEquivalency( suite, testId + 3, normalize( dir + vec3( 0.25, -0.25, -0.25 ) ) );
+  testEquivalency( suite, testId + 4, normalize( dir + vec3( -0.25, 0.25, 0.25 ) ) );
+  testEquivalency( suite, testId + 5, normalize( dir + vec3( -0.25, 0.25, -0.25 ) ) );
+  testEquivalency( suite, testId + 6, normalize( dir + vec3( -0.25, -0.25, 0.25 ) ) );
+  testEquivalency( suite, testId + 7, normalize( dir + vec3( -0.25, -0.25, -0.25 ) ) );
+}
+
 void tests( inout TestSuite suite ) {
 
-  testDirectionToCubeFaceUV( suite, 50, vec3( 1., 0., 0. ), 0, vec2( 0.5, 0.5 ) );
-  testDirectionToCubeFaceUV( suite, 40, vec3( -1., 0., 0. ), 1, vec2( 0.5, 0.5 ) );
-  testDirectionToCubeFaceUV( suite, 30, vec3( 0., 1., 0. ), 2, vec2( 0.5, 0.5 ) );
-  testDirectionToCubeFaceUV( suite, 20, vec3( 0., -1., 0. ), 3, vec2( 0.5, 0.5 ) );
-  testDirectionToCubeFaceUV( suite, 10, vec3( 0., 0., 1. ), 4, vec2( 0.5, 0.5 ) );
-  testDirectionToCubeFaceUV( suite, 0, vec3( 0., 0., -1. ), 5, vec2( 0.5, 0.5 ) );
+  testDirectionToCubeFaceUV( suite, 0, vec3( 1., 0., 0. ), 0, vec2( 0.5, 0.5 ) );
+  testDirectionToCubeFaceUV( suite, 10, vec3( -1., 0., 0. ), 1, vec2( 0.5, 0.5 ) );
+  testDirectionToCubeFaceUV( suite, 20, vec3( 0., 1., 0. ), 2, vec2( 0.5, 0.5 ) );
+  testDirectionToCubeFaceUV( suite, 30, vec3( 0., -1., 0. ), 3, vec2( 0.5, 0.5 ) );
+  testDirectionToCubeFaceUV( suite, 40, vec3( 0., 0., 1. ), 4, vec2( 0.5, 0.5 ) );
+  testDirectionToCubeFaceUV( suite, 50, vec3( 0., 0., -1. ), 5, vec2( 0.5, 0.5 ) );
+
+  testEquivalencySet( suite, 100, vec3( 1., 0., 0. ) );
+  testEquivalencySet( suite, 110, vec3( -1., 0., 0. ) );
+  testEquivalencySet( suite, 120, vec3( 0., 1., 0. ) );
+  testEquivalencySet( suite, 130, vec3( 0., -1., 0. ) );
+  testEquivalencySet( suite, 140, vec3( 0., 0., 1. ) );
+  testEquivalencySet( suite, 150, vec3( 0., 0., -1. ) );
 
 }