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173c56140c
* Skinning is done in a way that works when there's more than one bone influencing a vertex. * PMDs now store vertexes in world-space instead of bind-space. (The loader converts the old-version PMDs so they still work.) * Moved SkinPoint, SkinNormal into CModelDef so it could use them when loading the old PMDs. * Made the FastNormals approach non-optional, so the inverse-transpose bone matrices could be removed. Changed the explanation of why it's a valid approach. * Quaternion: Made GetInverse assume that the quaternions have unit length (which they do when they're representing 3D rotations). * lib: Added support for DDS files that aren't a multiple of 4x4 (most useful for 1x1, 2x2, etc that are still powers of two). * Actor Viewer: Added white terrain texture to the minimal test mod, so shadows are visible. Changed default so walk/run animations don't move the unit along the ground. * Removed some redundant repetition in doc comments. * Removed some unnecessary #includes. This was SVN commit r4696.
68 lines
1.5 KiB
C++
68 lines
1.5 KiB
C++
#include "lib/self_test.h"
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#include <cstdlib>
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#include <cmath>
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#include "lib/lib.h"
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#include "maths/Matrix3D.h"
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#include "maths/Quaternion.h"
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class TestMatrix : public CxxTest::TestSuite
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{
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public:
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void test_inverse()
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{
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CMatrix3D m;
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srand(0);
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for (int i = 0; i < 4; ++i)
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{
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for (int j = 0; j < 16; ++j)
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{
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m._data[j] = -1.0f + 2.0f*(rand()/(float)RAND_MAX);
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}
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CMatrix3D n;
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m.GetInverse(n);
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m *= n;
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// verify identity has 1s on diagonal and 0 otherwise
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for (int x = 0; x < 4; ++x)
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{
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for (int y = 0; y < 4; ++y)
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{
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const float expected = (x==y)? 1.0f : 0.0f;
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TS_ASSERT_DELTA(m(x,y), expected, 0.0001f);
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}
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}
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}
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}
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void test_quats()
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{
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srand(0);
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for (int i = 0; i < 4; ++i)
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{
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CQuaternion q;
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q.FromEulerAngles(
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-6.28f + 12.56f*(rand()/(float)RAND_MAX),
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-6.28f + 12.56f*(rand()/(float)RAND_MAX),
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-6.28f + 12.56f*(rand()/(float)RAND_MAX)
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);
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CMatrix3D m;
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q.ToMatrix(m);
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CQuaternion q2 = m.GetRotation();
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// Quaternions (x,y,z,w) and (-x,-y,-z,-w) are equivalent when
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// interpreted as rotations, so it doesn't matter which we get
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const bool ok_oneway =
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feq(q2.m_W, q.m_W) &&
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feq(q2.m_V.X, q.m_V.X) &&
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feq(q2.m_V.Y, q.m_V.Y) &&
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feq(q2.m_V.Z, q.m_V.Z);
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const bool ok_otherway =
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feq(q2.m_W, -q.m_W) &&
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feq(q2.m_V.X, -q.m_V.X) &&
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feq(q2.m_V.Y, -q.m_V.Y) &&
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feq(q2.m_V.Z, -q.m_V.Z);
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TS_ASSERT(ok_oneway ^ ok_otherway);
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}
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}
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};
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