public boolean Draw(Matrix4 projectionMatrix, Matrix4 viewMatrix) {
GLES20.glUseProgram(programID);
Matrix4 mvp =
Matrix4.Multiply(
projectionMatrix, Matrix4.Multiply(viewMatrix, parent.transform.transformMatrix));
float[] mvpArray = mvp.GetOneDimensionalArray();
GLES20.glUniformMatrix4fv(mvpLocation, 1, false, mvpArray, 0);
GLES20.glUniform1f(opacityLocation, opacity);
GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureID);
GLES20.glUniform1i(textureSamplerLocation, 0);
// Log.i(DEBUG_TAG,"Enabling " + vertexArrayList.size() + " attribs");
for (GLVertexArrayObject element : vertexArrayList) {
GLES20.glEnableVertexAttribArray(element.attributeNumber);
}
GLES20.glDrawArrays(GLES20.GL_TRIANGLES, 0, vertexArraySize);
for (GLVertexArrayObject element : vertexArrayList) {
GLES20.glDisableVertexAttribArray(element.attributeNumber);
}
return true;
}
public Matrix4 getProjectionMatrix() {
if (renderViewEntity != null) {
return projection.mul(
renderViewEntity
.getRotation()
.conjugate()
.toRotationMatrix()
.mul(
new Matrix4()
.initTranslation(
-renderViewEntity.getPos().getX() - 0.5f,
-renderViewEntity.getPos().getY() - renderViewEntity.getEyeOffset(),
-renderViewEntity.getPos().getZ() - 0.5f)));
}
return projection;
}
/**
* Updates the clipping plane's based on the given inverse combined projection and view matrix,
* e.g. from an {@link OrthographicCamera} or {@link PerspectiveCamera}.
*
* @param inverseProjectionView the combined projection and view matrices.
*/
public void update(Matrix4 inverseProjectionView) {
System.arraycopy(
clipSpacePlanePointsArray, 0, planePointsArray, 0, clipSpacePlanePointsArray.length);
Matrix4.prj(inverseProjectionView.val, planePointsArray, 0, 8, 3);
for (int i = 0, j = 0; i < 8; i++) {
Vector3 v = planePoints[i];
v.x = planePointsArray[j++];
v.y = planePointsArray[j++];
v.z = planePointsArray[j++];
}
planes[0].set(planePoints[1], planePoints[0], planePoints[2]);
planes[1].set(planePoints[4], planePoints[5], planePoints[7]);
planes[2].set(planePoints[0], planePoints[4], planePoints[3]);
planes[3].set(planePoints[5], planePoints[1], planePoints[6]);
planes[4].set(planePoints[2], planePoints[3], planePoints[6]);
planes[5].set(planePoints[4], planePoints[0], planePoints[1]);
}
public boolean equals(final Matrix4 m2) {
m2.toFloatArray(mTmp);
if (m[0] != mTmp[0]
|| m[1] != mTmp[1]
|| m[2] != mTmp[2]
|| m[3] != mTmp[3]
|| m[4] != mTmp[4]
|| m[5] != mTmp[5]
|| m[6] != mTmp[6]
|| m[7] != mTmp[7]
|| m[8] != mTmp[8]
|| m[9] != mTmp[9]
|| m[10] != mTmp[10]
|| m[11] != mTmp[11]
|| m[12] != mTmp[12]
|| m[13] != mTmp[13]
|| m[14] != mTmp[14]
|| m[15] != mTmp[15]) return false;
return true;
}
public Matrix4 subtract(final Matrix4 m2) {
m2.toFloatArray(mTmp);
return new Matrix4(
m[0] - mTmp[0],
m[1] - mTmp[1],
m[2] - mTmp[2],
m[3] - mTmp[3],
m[4] - mTmp[4],
m[5] - mTmp[5],
m[6] - mTmp[6],
m[7] - mTmp[7],
m[8] - mTmp[8],
m[9] - mTmp[9],
m[10] - mTmp[10],
m[11] - mTmp[11],
m[12] - mTmp[12],
m[13] - mTmp[13],
m[14] - mTmp[14],
m[15] - mTmp[15]);
}
public Matrix4 add(Matrix4 m2) {
m2.toFloatArray(mTmp);
return new Matrix4(
m[0] + mTmp[0],
m[1] + mTmp[1],
m[2] + mTmp[2],
m[3] + mTmp[3],
m[4] + mTmp[4],
m[5] + mTmp[5],
m[6] + mTmp[6],
m[7] + mTmp[7],
m[8] + mTmp[8],
m[9] + mTmp[9],
m[10] + mTmp[10],
m[11] + mTmp[11],
m[12] + mTmp[12],
m[13] + mTmp[13],
m[14] + mTmp[14],
m[15] + mTmp[15]);
}
public Matrix4 multiply(final Matrix4 m2) {
m2.toFloatArray(mTmp);
return new Matrix4(
m[0] * mTmp[0] + m[1] * mTmp[4] + m[2] * mTmp[8] + m[3] * mTmp[12],
m[0] * mTmp[1] + m[1] * mTmp[5] + m[2] * mTmp[9] + m[3] * mTmp[13],
m[0] * mTmp[2] + m[1] * mTmp[6] + m[2] * mTmp[10] + m[3] * mTmp[14],
m[0] * mTmp[3] + m[1] * mTmp[7] + m[2] * mTmp[11] + m[3] * mTmp[15],
m[4] * mTmp[0] + m[5] * mTmp[4] + m[6] * mTmp[8] + m[7] * mTmp[12],
m[4] * mTmp[1] + m[5] * mTmp[5] + m[6] * mTmp[9] + m[7] * mTmp[13],
m[4] * mTmp[2] + m[5] * mTmp[6] + m[6] * mTmp[10] + m[7] * mTmp[14],
m[4] * mTmp[3] + m[5] * mTmp[7] + m[6] * mTmp[11] + m[7] * mTmp[15],
m[8] * mTmp[0] + m[9] * mTmp[4] + m[10] * mTmp[8] + m[11] * mTmp[12],
m[8] * mTmp[1] + m[9] * mTmp[5] + m[10] * mTmp[9] + m[11] * mTmp[13],
m[8] * mTmp[2] + m[9] * mTmp[6] + m[10] * mTmp[10] + m[11] * mTmp[14],
m[8] * mTmp[3] + m[9] * mTmp[7] + m[10] * mTmp[11] + m[11] * mTmp[15],
m[12] * mTmp[0] + m[13] * mTmp[4] + m[14] * mTmp[8] + m[15] * mTmp[12],
m[12] * mTmp[1] + m[13] * mTmp[5] + m[14] * mTmp[9] + m[15] * mTmp[13],
m[12] * mTmp[2] + m[13] * mTmp[6] + m[14] * mTmp[10] + m[15] * mTmp[14],
m[12] * mTmp[3] + m[13] * mTmp[7] + m[14] * mTmp[11] + m[15] * mTmp[15]);
}
/**
* Rotates this vector by the given angle in radians around the given axis.
*
* @param axis the axis
* @param radians the angle in radians
* @return This vector for chaining
*/
public Vector3 rotateRad(final Vector3 axis, float radians) {
tmpMat.setToRotationRad(axis, radians);
return this.mul(tmpMat);
}
/**
* Rotates this vector by the given angle in degrees around the given axis.
*
* @param axis the axis
* @param degrees the angle in degrees
* @return This vector for chaining
*/
public Vector3 rotate(final Vector3 axis, float degrees) {
tmpMat.setToRotation(axis, degrees);
return this.mul(tmpMat);
}
/**
* Rotates this vector by the given angle in radians around the given axis.
*
* @param radians the angle in radians
* @param axisX the x-component of the axis
* @param axisY the y-component of the axis
* @param axisZ the z-component of the axis
* @return This vector for chaining
*/
public Vector3 rotateRad(float radians, float axisX, float axisY, float axisZ) {
return this.mul(tmpMat.setToRotationRad(axisX, axisY, axisZ, radians));
}
/**
* Rotates this vector by the given angle in degrees around the given axis.
*
* @param degrees the angle in degrees
* @param axisX the x-component of the axis
* @param axisY the y-component of the axis
* @param axisZ the z-component of the axis
* @return This vector for chaining
*/
public Vector3 rotate(float degrees, float axisX, float axisY, float axisZ) {
return this.mul(tmpMat.setToRotation(axisX, axisY, axisZ, degrees));
}
public Matrix4(Matrix4 other) {
this();
other.toFloatArray(mTmp);
set(mTmp);
}
/**
* Rotates this vector by the given angle around the given axis.
*
* @param axis
* @param angle the angle
* @return This vector for chaining
*/
public Vector3 rotate(final Vector3 axis, float angle) {
tmpMat.setToRotation(axis, angle);
return this.mul(tmpMat);
}
/**
* Rotates this vector by the given angle around the given axis.
*
* @param axisX the x-component of the axis
* @param axisY the y-component of the axis
* @param axisZ the z-component of the axis
* @return This vector for chaining
*/
public Vector3 rotate(float angle, float axisX, float axisY, float axisZ) {
return this.mul(tmpMat.setToRotation(axisX, axisY, axisZ, angle));
}
public Vector3 unprojectVector(Vector3 vector, Camera camera) {
camera.projectionMatrix.getInverse(camera.projectionMatrix);
viewProjectionMatrix.multiplyMatrices(camera.matrixWorld, camera.projectionMatrixInverse);
return vector.applyProjection(viewProjectionMatrix);
}