Java Code Examples for com.badlogic.gdx.math.Matrix4#rotate()

The following examples show how to use com.badlogic.gdx.math.Matrix4#rotate() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: SpinEffectFactory.java    From Klooni1010 with GNU General Public License v3.0 6 votes vote down vote up 
@Override
public void draw(Batch batch) {
    age += Gdx.graphics.getDeltaTime();

    final float progress = age * INV_LIFETIME;
    final float currentSize = Interpolation.pow2In.apply(size, 0, progress);
    final float currentRotation = Interpolation.sine.apply(0, TOTAL_ROTATION, progress);

    final Matrix4 original = batch.getTransformMatrix().cpy();
    final Matrix4 rotated = batch.getTransformMatrix();

    final float disp =
            +0.5f * (size - currentSize) // the smaller, the more we need to "push" to center
                    + currentSize * 0.5f; // center the cell for rotation

    rotated.translate(pos.x + disp, pos.y + disp, 0);
    rotated.rotate(0, 0, 1, currentRotation);
    rotated.translate(currentSize * -0.5f, currentSize * -0.5f, 0); // revert centering for rotation

    batch.setTransformMatrix(rotated);
    Cell.draw(color, batch, 0, 0, currentSize);
    batch.setTransformMatrix(original);
}
Example 2
Source File: GameWorldRenderer.java    From uracer-kotd with Apache License 2.0 5 votes vote down vote up 
private void renderTilemapPlane () {
	ShaderProgram shader = shNormalDepthNoDiffuse;
	float meshZ = -(camPersp.far - camPersp.position.z) + (camPersp.far * (1 - (camOrtho.zoom)));
	float k = OrthographicAlignedStillModel.BlenderToURacer;
	float scalex = 6, scalez = 4;

	Matrix4 model = mtx;
	tmpvec.set(camPersp.position.x, camPersp.position.y, meshZ + 0.5f);

	model.idt();
	model.translate(tmpvec);
	model.rotate(1, 0, 0, 90);
	model.scale(scalex * k, 1, scalez * k);

	mtx2.set(camPersp.view).mul(model);
	nmat.set(mtx2).inv().transpose();

	shader.begin();
	shader.setUniformf("inv_depth_scale", DefaultSsaoScale);
	shader.setUniformf("near", camPersp.near);
	shader.setUniformf("far", camPersp.far);
	shader.setUniformMatrix("proj", camPersp.projection);
	shader.setUniformMatrix("view", camPersp.view);
	shader.setUniformMatrix("nmat", nmat);
	shader.setUniformMatrix("model", model);
	plane.render(shader, GL20.GL_TRIANGLE_FAN);
	shader.end();
}
Example 3
Source File: WorldGenerator.java    From Skyland with MIT License 5 votes vote down vote up 
private static void placeCave(Vector3 island) {
    Matrix4 transform = new Matrix4();
    transform.setToTranslation(new Vector3(-5.4f, -.45f, -2.9f).add(island));
    transform.rotate(new Vector3(0, 1, 0), -35);
    Builder.setBuildModel(Models.MODEL_CAVE_PROTOTYPE);
    Builder.build(transform);
}
Example 4
Source File: TrackTrees.java    From uracer-kotd with Apache License 2.0 4 votes vote down vote up 
public void transform (PerspectiveCamera camPersp, OrthographicCamera camOrtho) {
	float meshZ = -(camPersp.far - camPersp.position.z) + (camPersp.far * (1 - (camOrtho.zoom)));

	for (int i = 0; i < models.size(); i++) {
		TreeStillModel m = models.get(i);

		Matrix4 transf = m.transformed;

		// compute position
		tmpvec.x = (m.positionOffsetPx.x - camPersp.position.x) + (camPersp.viewportWidth / 2) + m.positionPx.x;
		tmpvec.y = (m.positionOffsetPx.y + camPersp.position.y) + (camPersp.viewportHeight / 2) - m.positionPx.y;
		tmpvec.z = 1;

		tmpvec.x *= ScaleUtils.Scale;
		tmpvec.y *= ScaleUtils.Scale;

		tmpvec.x += ScaleUtils.CropX;
		tmpvec.y += ScaleUtils.CropY;

		// transform to world space
		camPersp.unproject(tmpvec, ScaleUtils.CropX, ScaleUtils.CropY, ScaleUtils.PlayWidth, ScaleUtils.PlayHeight);

		// build model matrix
		Matrix4 model = m.mtxmodel;
		tmpvec.z = meshZ;

		model.idt();
		model.translate(tmpvec);
		model.rotate(m.iRotationAxis, m.iRotationAngle);
		model.scale(m.scaleAxis.x, m.scaleAxis.y, m.scaleAxis.z);

		// comb = (proj * view) * model (fast mul)
		transf.set(camPersp.combined).mul(m.mtxmodel);

		// transform the bounding box
		m.boundingBox.inf().set(m.localBoundingBox);
		m.boundingBox.mul(m.mtxmodel);

		// create an AABB out of the corners of the original
		// AABB transformed by the model matrix
		// bb.inf();
		// Vector3[] corners = m.localBoundingBox.getCorners();
		// for(int k = 0; k < corners.length; k++)
		// {
		// vtrans[k].x = corners[k].x;
		// vtrans[k].y = corners[k].y;
		// vtrans[k].z = corners[k].z;
		// vtrans[k].mul( tmpmtx );
		// bb.ext(vtrans[k]);
		// }
		//
		// m.boundingBox.inf();
		// m.boundingBox.set( bb );
	}
}