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@@ -20,6 +20,7 @@
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#include <material.h>
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#include <uv_pattern.h>
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#include <uv_checkers.h>
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+#include <texturemap.h>
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#ifdef ENABLE_LUA_SUPPORT
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extern "C" {
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@@ -273,4 +274,81 @@ TEST(PatternTest, Checkers_pattern_in_2D)
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ASSERT_EQ(checkers.uvPatternAt(0.0, 0.5), white);
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ASSERT_EQ(checkers.uvPatternAt(0.5, 0.5), black);
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ASSERT_EQ(checkers.uvPatternAt(1.0, 1.0), black);
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+}
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+
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+TEST(PatternTest, Using_a_spherical_mapping_on_a_3d_point)
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+{
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+ Point testList[] = {
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+ Point( 0, 0, -1),
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+ Point( 1, 0, 0),
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+ Point( 0, 0, 1),
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+ Point(-1, 0, 0),
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+ Point( 0, 1, 0),
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+ Point( 0, -1, 0),
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+ Point(sqrt(2)/2, sqrt(2)/2, 0),
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+ };
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+
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+ double testResults[][2] {
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+ {0.0, 0.5},
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+ {0.25, 0.5},
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+ {0.5, 0.5},
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+ {0.75, 0.5},
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+ {0.5, 1.0},
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+ {0.5, 0.0},
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+ {0.25, 0.75},
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+ };
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+
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+ int testCount = sizeof(testList)/sizeof((testList)[0]);
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+ int i;
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+
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+ TextureMap tm = TextureMap(SPHERICAL_MAP, nullptr);
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+
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+ for(i = 0; i < testCount; i++)
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+ {
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+ double u, v;
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+ tm.sphericalMap(testList[i], u, v);
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+ ASSERT_TRUE(double_equal(u, testResults[i][0]));
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+ ASSERT_TRUE(double_equal(v, testResults[i][1]));
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+ }
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+}
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+
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+TEST(PatternTest, Using_a_texture_map_with_a_spherical_map)
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+{
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+ Point testList[] = {
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+ Point( 0.4315, 0.4670, 0.7719),
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+ Point( -0.9654, 0.2252, -0.0534),
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+ Point( 0.1039, 0.7090, 0.6975),
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+ Point( -0.4986, -0.7856, -0.3663),
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+ Point( -0.0317, -0.9395, 0.3411),
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+ Point( 0.4809, -0.7721, 0.4154),
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+ Point( 0.0285, -0.9612, -0.2745),
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+ Point( -0.5734, -0.2162, -0.7903),
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+ Point( 0.7688, -0.1470, 0.6223),
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+ Point( -0.7652, 0.2175, 0.6060),
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+ };
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+
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+ Colour testResults[] {
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+ white,
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+ black,
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+ white,
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+ black,
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+ black,
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+ black,
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+ black,
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+ white,
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+ black,
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+ black,
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+ };
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+
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+ int testCount = sizeof(testList)/sizeof((testList)[0]);
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+ int i;
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+
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+ UVCheckers uvpat = UVCheckers(16, 8, black, white);
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+ TextureMap tm = TextureMap(SPHERICAL_MAP, &uvpat);
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+
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+ for(i = 0; i < testCount; i++)
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+ {
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+ Colour ret = tm.patternAt(testList[i]);
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+ EXPECT_EQ(ret, testResults[i]);
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+ }
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}
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