本文整理汇总了Java中com.jme3.renderer.Camera.getProjectionMatrix方法的典型用法代码示例。如果您正苦于以下问题：Java Camera.getProjectionMatrix方法的具体用法？Java Camera.getProjectionMatrix怎么用？Java Camera.getProjectionMatrix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.renderer.Camera的用法示例。
在下文中一共展示了Camera.getProjectionMatrix方法的2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: renderFromControl
import com.jme3.renderer.Camera; //导入方法依赖的package包/类
/**
* Callback from Control.render(), do not use.
*
* @param rm
* @param vp
*/
private void renderFromControl(RenderManager rm, ViewPort vp) {
Camera cam = vp.getCamera();
if (meshType == ParticleMesh.Type.Point) {
float C = cam.getProjectionMatrix().m00;
C *= cam.getWidth() * 0.5f;
// send attenuation params
this.getMaterial().setFloat("Quadratic", C);
}
Matrix3f inverseRotation = Matrix3f.IDENTITY;
TempVars vars = null;
if (!worldSpace) {
vars = TempVars.get();
inverseRotation = this.getWorldRotation().toRotationMatrix(vars.tempMat3).invertLocal();
}
particleMesh.updateParticleData(particles, cam, inverseRotation);
if (!worldSpace) {
vars.release();
}
}
示例2: updateShadowCamera
import com.jme3.renderer.Camera; //导入方法依赖的package包/类
/**
* Updates the shadow camera to properly contain the given
* points (which contain the eye camera frustum corners)
*
* @param occluders
* @param lightCam
* @param points
*/
public static void updateShadowCamera(Camera shadowCam, Vector3f[] points) {
boolean ortho = shadowCam.isParallelProjection();
shadowCam.setProjectionMatrix(null);
if (ortho) {
shadowCam.setFrustum(-1, 1, -1, 1, 1, -1);
} else {
shadowCam.setFrustumPerspective(45, 1, 1, 150);
}
Matrix4f viewProjMatrix = shadowCam.getViewProjectionMatrix();
Matrix4f projMatrix = shadowCam.getProjectionMatrix();
BoundingBox splitBB = computeBoundForPoints(points, viewProjMatrix);
Vector3f splitMin = splitBB.getMin(null);
Vector3f splitMax = splitBB.getMax(null);
// splitMin.z = 0;
// Create the crop matrix.
float scaleX, scaleY, scaleZ;
float offsetX, offsetY, offsetZ;
scaleX = 2.0f / (splitMax.x - splitMin.x);
scaleY = 2.0f / (splitMax.y - splitMin.y);
offsetX = -0.5f * (splitMax.x + splitMin.x) * scaleX;
offsetY = -0.5f * (splitMax.y + splitMin.y) * scaleY;
scaleZ = 1.0f / (splitMax.z - splitMin.z);
offsetZ = -splitMin.z * scaleZ;
Matrix4f cropMatrix = new Matrix4f(scaleX, 0f, 0f, offsetX,
0f, scaleY, 0f, offsetY,
0f, 0f, scaleZ, offsetZ,
0f, 0f, 0f, 1f);
Matrix4f result = new Matrix4f();
result.set(cropMatrix);
result.multLocal(projMatrix);
shadowCam.setProjectionMatrix(result);
}