本文整理汇总了Java中com.jme3.util.BufferUtils.copyInternalVector3方法的典型用法代码示例。如果您正苦于以下问题：Java BufferUtils.copyInternalVector3方法的具体用法？Java BufferUtils.copyInternalVector3怎么用？Java BufferUtils.copyInternalVector3使用的例子？那么, 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com.jme3.util.BufferUtils的用法示例。
在下文中一共展示了BufferUtils.copyInternalVector3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Java代码示例。
示例1: setGeometryData
import com.jme3.util.BufferUtils; //导入方法依赖的package包/类
private void setGeometryData() {
// allocate vertices
int vertCount = (circleSamples + 1) * (radialSamples + 1);
FloatBuffer fpb = BufferUtils.createVector3Buffer(vertCount);
setBuffer(Type.Position, 3, fpb);
// allocate normals if requested
FloatBuffer fnb = BufferUtils.createVector3Buffer(vertCount);
setBuffer(Type.Normal, 3, fnb);
// allocate texture coordinates
FloatBuffer ftb = BufferUtils.createVector2Buffer(vertCount);
setBuffer(Type.TexCoord, 2, ftb);
// generate geometry
float inverseCircleSamples = 1.0f / circleSamples;
float inverseRadialSamples = 1.0f / radialSamples;
int i = 0;
// generate the cylinder itself
Vector3f radialAxis = new Vector3f(), torusMiddle = new Vector3f(), tempNormal = new Vector3f();
for (int circleCount = 0; circleCount < circleSamples; circleCount++) {
// compute center point on torus circle at specified angle
float circleFraction = circleCount * inverseCircleSamples;
float theta = FastMath.TWO_PI * circleFraction;
float cosTheta = FastMath.cos(theta);
float sinTheta = FastMath.sin(theta);
radialAxis.set(cosTheta, sinTheta, 0);
radialAxis.mult(outerRadius, torusMiddle);
// compute slice vertices with duplication at end point
int iSave = i;
for (int radialCount = 0; radialCount < radialSamples; radialCount++) {
float radialFraction = radialCount * inverseRadialSamples;
// in [0,1)
float phi = FastMath.TWO_PI * radialFraction;
float cosPhi = FastMath.cos(phi);
float sinPhi = FastMath.sin(phi);
tempNormal.set(radialAxis).multLocal(cosPhi);
tempNormal.z += sinPhi;
fnb.put(tempNormal.x).put(tempNormal.y).put(
tempNormal.z);
tempNormal.multLocal(innerRadius).addLocal(torusMiddle);
fpb.put(tempNormal.x).put(tempNormal.y).put(
tempNormal.z);
ftb.put(radialFraction).put(circleFraction);
i++;
}
BufferUtils.copyInternalVector3(fpb, iSave, i);
BufferUtils.copyInternalVector3(fnb, iSave, i);
ftb.put(1.0f).put(circleFraction);
i++;
}
// duplicate the cylinder ends to form a torus
for (int iR = 0; iR <= radialSamples; iR++, i++) {
BufferUtils.copyInternalVector3(fpb, iR, i);
BufferUtils.copyInternalVector3(fnb, iR, i);
BufferUtils.copyInternalVector2(ftb, iR, i);
ftb.put(i * 2 + 1, 1.0f);
}
}