本文整理汇总了C++中Vec3f::Length2方法的典型用法代码示例。如果您正苦于以下问题：C++ Vec3f::Length2方法的具体用法？C++ Vec3f::Length2怎么用？C++ Vec3f::Length2使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Vec3f的用法示例。
在下文中一共展示了Vec3f::Length2方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: SoftwareTransform
//.........这里部分代码省略.........
source = normal.Normalized();
if (!reader.hasNormal()) {
ERROR_LOG_REPORT(G3D, "Normal projection mapping without normal?");
}
break;
case GE_PROJMAP_NORMAL: // Use non-normalized normal as source!
source = normal;
if (!reader.hasNormal()) {
ERROR_LOG_REPORT(G3D, "Normal projection mapping without normal?");
}
break;
}
float uvw[3];
Vec3ByMatrix43(uvw, &source.x, gstate.tgenMatrix);
uv[0] = uvw[0];
uv[1] = uvw[1];
uv[2] = uvw[2];
}
break;
case GE_TEXMAP_ENVIRONMENT_MAP:
// Shade mapping - use two light sources to generate U and V.
{
auto getLPosFloat = [&](int l, int i) {
return getFloat24(gstate.lpos[l * 3 + i]);
};
auto getLPos = [&](int l) {
return Vec3f(getLPosFloat(l, 0), getLPosFloat(l, 1), getLPosFloat(l, 2));
};
auto calcShadingLPos = [&](int l) {
Vec3f pos = getLPos(l);
if (pos.Length2() == 0.0f) {
return Vec3f(0.0f, 0.0f, 1.0f);
} else {
return pos.Normalized();
}
};
// Might not have lighting enabled, so don't use lighter.
Vec3f lightpos0 = calcShadingLPos(gstate.getUVLS0());
Vec3f lightpos1 = calcShadingLPos(gstate.getUVLS1());
uv[0] = (1.0f + Dot(lightpos0, worldnormal))/2.0f;
uv[1] = (1.0f + Dot(lightpos1, worldnormal))/2.0f;
uv[2] = 1.0f;
}
break;
default:
// Illegal
ERROR_LOG_REPORT(G3D, "Impossible UV gen mode? %d", gstate.getUVGenMode());
break;
}
uv[0] = uv[0] * widthFactor;
uv[1] = uv[1] * heightFactor;
// Transform the coord by the view matrix.
Vec3ByMatrix43(v, out, gstate.viewMatrix);
fogCoef = (v[2] + fog_end) * fog_slope;
// TODO: Write to a flexible buffer, we don't always need all four components.
memcpy(&transformed[index].x, v, 3 * sizeof(float));
transformed[index].fog = fogCoef;
memcpy(&transformed[index].u, uv, 3 * sizeof(float));