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Cleanup.

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This commit is contained in:
Branimir Karadžić 2018-12-10 20:41:36 -08:00
parent 0740b29de7
commit 1d2ef78e8b
1 changed files with 11 additions and 21 deletions
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32
examples/14-shadowvolumes/shadowvolumes.cpp
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@ -1706,7 +1706,7 @@ void createNearClipVolume(float* __restrict _outPlanes24f
// 1.0f - in front of near plane
// 0.0f - on the near plane
// -1.0f - behind near plane
float lightSide = float( (d > delta) - (d < -delta) );
const float lightSide = float( (d > delta) - (d < -delta) );
float t = bx::tan(bx::toRad(_fovy)*0.5f) * _near;
float b = -t;
@ -1730,29 +1730,19 @@ void createNearClipVolume(float* __restrict _outPlanes24f
float planeNormals[4][3];
for (uint8_t ii = 0; ii < 4; ++ii)
{
float* normal = planeNormals[ii];
float* plane = volumePlanes[ii];
float* outNormal = planeNormals[ii];
float* outPlane = volumePlanes[ii];
float planeVec[3];
bx::vec3Sub(planeVec, corners[ii], corners[(ii-1)&3]);
const bx::Vec3 c0 = bx::load(corners[ii]);
const bx::Vec3 planeVec = bx::sub(c0, bx::load(corners[(ii-1)&3]) );
const bx::Vec3 light = bx::sub(bx::load(_lightPos), bx::mul(c0, _lightPos[3]) );
const bx::Vec3 normal = bx::mul(bx::cross(planeVec, light), lightSide);
float light[3];
float tmp[3];
bx::vec3Mul(tmp, corners[ii], _lightPos[3]);
bx::vec3Sub(light, _lightPos, tmp);
const float invLen = 1.0f / bx::sqrt(bx::dot(normal, normal) );
bx::vec3Cross(normal, planeVec, light);
normal[0] *= lightSide;
normal[1] *= lightSide;
normal[2] *= lightSide;
float lenInv = 1.0f / bx::sqrt(bx::vec3Dot(normal, normal) );
plane[0] = normal[0] * lenInv;
plane[1] = normal[1] * lenInv;
plane[2] = normal[2] * lenInv;
plane[3] = -bx::vec3Dot(normal, corners[ii]) * lenInv;
bx::store(outNormal, normal);
bx::store(outPlane, bx::mul(normal, invLen) );
outPlane[3] = -bx::dot(normal, c0) * invLen;
}
float nearPlaneV[4] =